Technical Description ND-ΧΧΧ/ΗΗ.ΜΜ.ΥΥΥΥ

TELECONTROLLED OVERHEAD MEDIUM VOLTAGE AUTOMATIC CIRCUIT RECLOSER VACUUM TYPE

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CONTENTS

1. SCOPE ............................................................................................................................................................................. 4

2. STANDARDS ................................................................................................................................................................ 4

3. OPERATING CONDITIONS ..................................................................................................................................... 6

3.1 ENVIRONMENTAL CONDITIONS .............................................................................................................................................. 6 3.2 DISTRIBUTION SYSTEM CHARACTERISTICS ......................................................................................................................... 6

4. GENERAL ........................................................................................................................................................................... 6

5. MINIMUM TECHNICAL REQUIREMENTS ......................................................................................................... 7

6. ACR FEATURES ............................................................................................................................................................... 7

6.1. DESIGN .................................................................................................................................................................................... 7 6.2. OPERATING MECHANISM ...................................................................................................................................................... 8 6.3. PROVISION FOR REMOTE CONTROL .................................................................................................................................... 9 6.4. CONNECTIONS ........................................................................................................................................................................ 9 6.5. DEGREE OF PROTECTION ...................................................................................................................................................... 9 6.6. EARTHING ................................................................................................................................................................................ 9 6.7. INTERRUPTING AND INSULATION MEDIUM ........................................................................................................................ 9 6.8. PROTECTION AGAINST CORROSION ...................................................................................................................................10

7. CONTROL PANEL OF THE ACR............................................................................................................................. 10

7.1. CONTROL PANEL - RTU ......................................................................................................................................................10 7.2. FUNCTIONS AND CAPABILITIES OF THE RTU ...................................................................................................................13 7.3. POWER QUALITY MEASUREMENTS AND REPORTS ..........................................................................................................15 7.4. DEGREE OF PROTECTION ....................................................................................................................................................16 7.5. PROTECTION AND SAFETY ....................................................................................................................................................16

8. RTU’S SETTINGS .......................................................................................................................................................... 17

8.1. DIRECTIONAL OVERCURRENT PROTECTION – DIRECTIONAL BLOCKING ....................................................................17 8.2 OVERCURRENT PROTECTION SETTINGS ............................................................................................................................18 8.3. UNDER AND OVERVOLTAGE (U/O) PROTECTION .........................................................................................................19 8.4. UNDER AND OVER FREQUENCY (U/O) PROTECTION ...................................................................................................20 8.5. BROKEN CONDUCTOR FUNCTION ......................................................................................................................................20 8.6. SEQUENCE COORDINATION ...............................................................................................................................................21 8.7. LOSS OF PHASE PROTECTION ...........................................................................................................................................21 8.8. WORK TAG TRIPPING .........................................................................................................................................................21 8.9 FAST TRIPS DISABLED.........................................................................................................................................................21 8.10. SINGLE SHOT TRIPPING ..................................................................................................................................................22 8.11. LIVE LOAD BLOCKING .....................................................................................................................................................22 8.12. SYNCHRONIZATION CHECK FUNCTION ..........................................................................................................................22 8.13. INRUSH RESTRAINT FUNCTION ........................................................................................................................................23 8.14. COLD LOAD PICK UP FUNCTION .....................................................................................................................................23 8.15 AUTO RECLOSE SETTINGS ................................................................................................................................................23 8.16. AUTOMATIC PROTECTION GROUP SELECTION ..............................................................................................................24

9. THREE CURRENT TRANSFORMERS (3 SINGLE PHASE) ..................................................................... 24

10. ONE VOLTAGE TRANSFORMER (DOUBLE PHASE) FOR POWER SUPPLY ............................... 24

11. SIX ELECTRONIC VOLTAGE SENSORS (CAPACITIVE OR RESISTIVE) .................................... 25

12. COMMUNICATION CAPABILITIES................................................................................................................ 25

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12.1. MEANS OF COMMUNICATION ...........................................................................................................................................25 12.2 COMMUNICATION WITH EXISTING CENTRAL CONTROL SYSTEMS .................................................................................25

13. PROTOCOL CONVERTER (GATEWAY) .......................................................................................................... 26

14. GSM/GPRS ROUTERS........................................................................................................................................... 26

15. TESTS .............................................................................................................................................................................. 27

15.1 TYPE TESTS ..........................................................................................................................................................................27 15.1.1. Type tests for ACR and its Control panel - RTU ...............................................................................27 15.1.2. Type tests for the supply voltage transformer ................................................................................28 15.1.3. Additional type tests for the Control panel - RTU ...........................................................................28

15.2 ROUTINE TESTS ...................................................................................................................................................................29 15.3 SAMPLE TESTS (FACTORY ACCEPTANCE TESTS - FAT) .............................................................................................29 15.4. SAMPLE APPROVAL REGARDING ITS COMMUNICATION AND FUNCTIONALITY CAPABILITIES ...................................30 15.5. VALIDITY OF THE CONTRACTUAL DELIVERY TIME ..........................................................................................................31

16. ACR SIMULATION EQUIPMENT ....................................................................................................................... 31

17. SPARE PARTS............................................................................................................................................................. 31

18. SPECIAL INFORMATION THAT MUST BE GIVEN WITH THE BID - REFERENCES ............... 32

19. DOCUMENTATION.................................................................................................................................................. 35

20. TRAINING ................................................................................................................................................................... 36

21. INSTALLATION AND COMMISSIONING OF THE FIRST TWENTY (20) UNITS ................... 36

22. WORKS FOR PROGRAMMING OF THE RTUS & THEIR MODEMS AS WELL AS THEIR

INTEGRATION TO THE CCS SYSTEMS OF HEDNO ......................................................................................... 37

23. GUARANTEE............................................................................................................................................................... 40

24. NAMEPLATES AND MARKING ......................................................................................................................... 43

25. PACKING ..................................................................................................................................................................... 44

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Technical Description ND-ΧΧΧ/ΗΗ.ΜΜ.ΥΥΥΥ

TELECONTROLLED OVERHEAD MEDIUM VOLTAGE

AUTOMATIC CIRCUIT RECLOSER VACUUM TYPE

1. SCOPE This technical description (TD) covers the general requirements of design,

manufacturing, testing, supply, delivery, performance and guarantee of three phase, vacuum type Automatic Circuit Recloser (ACR) for medium voltage (20 and 15 kV) overhead power distribution systems, with a Remote Terminal Unit (RTU).

2. STANDARDS

This TD is based on the following standards:

IEC International Electrotechnical Commission

- IEC 62271-111 and IEEE 37.60: High-voltage switchgear and controlgear - Part 111:

Overhead, pad-mounted, dry vault, and submersible automatic circuit reclosers and fault interrupters for alternating current systems up to 38 kV

- IEC 62271-1:High-voltage switchgear and controlgear - Part 1: Common specifications - IEC 62271-100: High-voltage switchgear and controlgear - Part 100: Alternating current

circuit-breakers

- IEC 62271-103: High-voltage switchgear and controlgear - Part 103: Switches for rated voltages above 1 kV up to and including 52 kV

- IEC 62271-200: High-voltage switchgear and controlgear - Part 200: AC metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and including 52 kV

- IEC 60694: Common Specifications for High-Voltage Switchgear and Controlgear

Standards - IEC 60071-1 & 60071-2: Insulation Coordination

- IEC 60060-2: High voltage test techniques - IEC 60273: Characteristics of Indoor & Outdoor Post Insulators for Systems with Nominal

voltage greater than 1000 V

- IEC 62217: Polymeric insulators for indoor and outdoor use with a nominal voltage >1000V – General definitions, test methods and acceptance criteria

- IEC 61952: Insulators for overhead lines – Composite line post insulators for A.C. systems with a normal voltage greater than 1000V - Definitions, test methods and acceptance criteria

- IEC 60507: Artificial pollution tests on high-voltage insulators to be used in alternating current systems

- IEC 60815: Guide for the selection of insulators in respect of polluted conditions - IEC 60870-2-1: Telecontrol equipment and systems – Part 2: Operating conditions –

Section 1: Power supply and electromagnetic compatibility

- IEC 60870-3:Telecontrol equipment and systems. Part 3: Interfaces (electrical characteristics)

- IEC 60255-4:Single input energizing quantity measuring relays with dependent specified

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time - IEC 60255-3:Electrical relays - Part 3: Single input energizing quantity measuring relays

with dependent or independent time

- IEC 60255-151:Measuring relays and protection equipment - Part 151: Functional requirements for over/under current protection

- IEC 60255-21-1: Electrical relays - Part 21: Vibration, shock, bump and seismic tests on measuring relays and protection equipment - Section One: Vibration tests (sinusoidal)

- IEC 60068-2-1:Environmental testing - Part 2-1: Tests - Test A: Cold

- IEC 60068-2-2:Environmental testing - Part 2-2: Tests - Test B: Dry heat - IEC 60068-2-30:Environmental testing - Part 2-30: Tests - Test Db: Damp heat, cyclic

(12 h + 12 h cycle) - IEC 60068-2-5:Environmental testing - Part 2-5: Tests - Test Sa: Simulated solar

radiation at ground level and guidance for solar radiation testing

- IEC 60529: Degrees of protection provided by enclosures (IP code) - IEC 60270: High-Voltage Test Techniques—Partial Discharge Measurements

- IEC 600044-2: Inductive voltage Transformers - 61869-2: Instrument transformers, Additional requirements for current transformers - 61869-3: Instrument transformers, Additional requirements for inductive voltage

transformers - IEC 60044-7: Instrument transformers, Electronic voltage transformers

- IEC 60044-8: Instrument transformers –Electronic current transformers - IEC 60896-21: Stationary lead-acid batteries – Part 21: Valve regulated types – Methods

of test

- IEC 60896-21: Stationary lead-acid batteries – Part 22: Valve regulated types – Requirements

ISO International Organization for Standardization

- ISO 1460: Hot dip galvanized coatings on iron and steel

- ISO 1459: Metallic Coatings -Protection against Corrosion by Hot Dip Galvanizing –Guiding Principles

- ISO 1461: Hot dip galvanized coatings on fabricated iron and steel articles - Specifications and test methods

- ISO 9000: Quality management and quality assurance standards -Guidelines for selection

and use.

Harmonized European or Public Power Corporation (PPC) or Other

- EN 10882-2: Stainless steel flat products for general purpose.

- PPC/ΧΚ 11.02/11.03.2008: Hot dip galvanizing in iron and steel hardware - PPC/ΧΚ 11.04/ 11.03.2008: Electrolytic tin plating

- ANSI C37.61 and IEEE Std 321: Guide for the Application, Operation, and

Maintenance of Automatic Circuit Reclosers - ANSI C37.85-2002 - American National Standard Safety Requirements for X-Radiation

Limits for AC High-Voltage Power Switchgear. Where any provision of this technical description differs from those of the standards listed above, the provision of this technical description shall apply. In case of conflict,

the order of precedence shall be:

- This technical description

- EN standards, - IEC standards, - Other standards (ANSI, ISO, PPC etc.)

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3. OPERATING CONDITIONS

3.1 Environmental conditions

The product shall be suitable for operation outdoors, under the following environmental conditions:

Ambient air temperature: -25°C to +40° C 1 in the presence of ice or snow. Maximum average temperature of the ambient air measured over a period of

24h: +35 ° C

Altitude: Up to 1000 meters above sea level. Isokeraunic level: Mean value 25, max 100

Exposure to solar radiation: More than 2800 hours annually peaking at 1.100W/m2 for horizontal surfaces

Relative humidity: 15% to 95%

Areas of coastal salt spray and / or industrial pollution with equivalent salt deposit densities in the range 2 to 3 g/m3

3.2 Distribution system characteristics

The ACR is intended to be used in a three phase three wire distribution network, grounded at the sending end (MV node of HV/MV substation), through a resistance

limiting the single phase earth fault current to 1000A. The MV network shall have the following characteristics:

Nominal system voltage: 15 kV and 20 kV.

Maximum system voltage: 24 kV. Rated frequency: 50 Hz.

Short circuit level: 250 MVA.

4. GENERAL The ACR shall be pole mounted suitable for 20kV or 15kV overhead power distribution

lines. It will incorporate vacuum interrupters inside solid dielectric insulated poles housed within an arc fault venting designed stainless steel tank to ensure maximum

life and reliability under the outdoor service conditions specified in paragraph 3 of this TD. In the event of a fault on the section of the line controlled by an ACR, the ACR shall

automatically open, and after a minimum dead time it shall reclose and remain closed should the line be no longer faulty (Auto Reclose set to ON). Should the fault persist,

the ACR shall again disconnect the section of line being controlled. The ACR shall be capable of not less than three automatic reclose operations at rated short circuit current should the fault persist and then lock out in the open position until reset

locally or remotely. If the fault is of a transient nature the ACR shall remain closed, and the operating mechanism shall automatically reset.

The number of operations to lockout shall be adjustable in any combination of instantaneous and time-delayed trips up to a maximum of four operations.

The ACR shall coordinate with circuit breakers, sectionalizers and fuse cut-outs.

1 The maximum ambient air temperature for the control panel/RTU is + 55°C

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5. MINIMUM TECHNICAL REQUIREMENTS The minimum technical requirements shall be as follows:

Operating Voltage: 20kV

Rated Max. Voltage: 24kV Number of phases: 3 Rated power frequency: 50Hz

Rated continuous current: 630A Rated mainly active breaking capacity: 630A

Rated cable charging interrupting current: 25 A Rated line charging interrupting current: 5 A Short time current withstand: 12,5kA/3s

Rated symmetrical interrupting current (RMS): 12,5kA Rated symmetrical making current (rms): 12,5kA

Rated asymmetrical making current (peak): 31,25kAp Rated Impulse withstand voltage (1.2/50µs) phase to earth,

phase to phase and across interrupter: 125kVp

Dry Power frequency withstand voltage (1 min) phase to earth and across interrupter: 60 kV rms

Wet Power frequency withstand voltage (10 sec): 50 kV rms Mechanical operations: 10.000 Full load (630A) operations: 10.000 Fault break (12,5kA) capacity operations: 50 Minimum creepage distance of bushings: 610 mm

6. ACR FEATURES 6.1. Design

The ACR shall be a compact, lightweight, maintenance free type switchgear supplied with a pole mounting bracket for its easy installation on a vertical wooden or

reinforced concrete pole of approximately 160 to 330mm diameter section supporting 20kV or 15 kV lines. It shall be possible to easily pass a body belt between the pole and the ACRs tank. The mounting bracket shall be suitable for single pole mounting.

The ACR shall be complete with all operating mechanisms and other components necessary for operation, including pole mounting brackets for the ACR, the control

panel and the supply power transformer (mounting bracket, adjustable support brackets, cross arms, bolts, nuts and washers, lifting lugs etc.), cables with suitable plugs connecting the main body of the ACR to the control panel as well as the supply

power transformer to the control panel. The ACR shall be supplied with suitably rated lifting eyes, positioned to facilitate the lifting of the equipment in the correct

orientation without the lifting straps transmitting any forces onto with the bushings during the lifting operation and without recourse to a sling spreader. The following drawings are attached herewith to take into consideration in the design of mounting

brackets:

• Drawings Nr F-5, FCP-4 & FCP-5 with the dimensions of the wooden poles and

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reinforced concrete poles used in distribution overhead networks. In the drawing Nr FCP-5 the centers of holes of the concrete pole shall have a distance of 300 mm between each other and the holes shall have a diameter of 22 mm to cope

with the bolt of 20 mm in diameter. An indicative construction drawing of an overhead telecontrolled ACR

HEDNO will specify upon drawing approval the exact lengths of the required cables (mainly 12m from control panel-RTU to the ACR and 10m from control panel-RTU to supply power transformer).

The source side and the load side of the ACR shall be interchangeable, that is either side can be connected to the power source. The mechanical design and strength of the

unit and all components shall be able to bear the mechanical forces when installed and during operation. They shall withstand the electro-dynamic forces without any reduction in reliability and/or current carrying capacity of the ACR.

All non-metallic parts including insulating materials of cables shall be able to withstand the effects of ultra violet radiation.

6.2. Operating Mechanism

The ACR’s operation shall comprise voluntary electrical operation (remote operation by a Central Control System and local operation via the control panel) and mechanical operation (by means of a hook-stick mechanism). Furthermore electrical operation

shall be carried out automatically by the control panel in the event of a fault to protect the section of the line controlled by the ACR. Hereafter, within this technical

description, the voluntary opening operation of ACR – electrically (via a CCS or local command) or mechanically via a hook-stick mechanism - will be called ACR opening, while the ACR automatic opening operation due to a fault will be called ACR tripping.

Accordingly, the voluntary closing operation will be called ACR closing, while the automatic closing operation after ACR tripping will be called reclosing.

All three poles of the ACR shall be operated simultaneously by the electrical or mechanical operating mechanism. The operating mechanism shall contain a bi-stable magnetic actuator so that no

operating power shall be required to hold the unit open or closed.

A hook-stick mechanism shall enable tripping independently of the control panel in the

event that the electrical control system has failed. If the handle of this mechanism is pulled down, via an insulating hook-stick, the ACR shall open and simultaneously locked out electrically and mechanically. This means that as long as the handle is

pulled, it shall not be possible to close the ACR electrically, either locally from the control panel or remotely from a remote Central Control System. The handle shall

stay at this position, indicating the interlocked state. To close the ACR, the handle must first be pushed back to its operation position in order to release the lockout. Then the ACR shall be closed electrically via the control panel or by a remote Central

Control System. The insulating hook-stick is a portable tool used by HEDNO’s linemen and isn’t in the scope of the supply.

Clear and unambiguous indication shall be provided to an operator standing on the ground regarding the status of the ACR main contacts. This shall be by an indicator

mechanically linked to the operating mechanism and shall be clearly visible to an observer ten meters below the ACR. Symbols and colors for the indicators shall be a Red "ON" for ON and Green "OFF" for OFF. The colors shall remain vivid for the

products working life. Painted symbols are unacceptable.

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6.3. Provision for Remote Control

The ACR shall be equipped with the following features to facilitate remote control, protection and monitoring functions:

a) A magnetic actuator to perform OPEN and CLOSE operations. b) Contacts that indicate the positional status of the ACR directly fitted to the

operating mechanism.

c) Interlocked handle contacts that indicate the lockout status of the ACR d) Three phase set of current transformers for protection, metering and data

gathering. e) Voltage sensors to monitor line voltage on all six ACR HV terminals to allow remote

monitoring of supply availability from either direction.

6.4. Connections ACR terminals shall be made of tin plated electrolytic copper or brass with a minimum

tin coating thickness of 15 μm. They shall have 2 holes 12 mm in diameter longitudinally placed, and shall be suitable to be connected with plaque or coss type

terminals (these terminals aren’t in the scope of the supply). The terminals are connected with 50 to 240 mm² Cu or Al conductors.

6.5. Degree of Protection The ACR tank must have a minimum degree of protection IP65.

6.6. Earthing An earthing terminal shall be provided for connecting the ACR metal work and mounting frame to the pole’s earthing system. The earthing terminal shall be suitable

for accommodating with a 16 mm2 Cu conductor.

6.7. Interrupting and Insulation Medium

The breaking chamber of the ACR shall be of vacuum type. The vacuum breaking chamber shall be a «hermetically sealed system» suitable for lifetime operation. The

service life shall be at least 30 years. The Bidder shall provide reference to prove this. Extrapolation for a 30 year period of the contact erosion measured during type testing as per par. 6.5 of the IEC 62271-111, applying manufacturer's measurement method

for determining contact erosion accepted by HEDNO's Inspector, may be accepted to ascertain this characteristic.

The ACR’s control shall incorporate a system which shall provide an approximate indication of the life remaining in the vacuum interrupters. This system shall use the measured value of interrupted current and a formulae approved by the vacuum

interrupter manufacturer to calculate the remaining life of the interrupters.

Bidders shall state the consequences of loss of vacuum on:

• The voltage withstand capability of an open circuit ACR • The ability of the ACR to switch load current • The ability of the ACR to switch fault current (fault breaking and fault making).

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Furthermore the Bidder shall declare in the offer if the ACR is equipped or not with a blocking operation in a case of loss of vacuum, or an arrangement indicative of loss of breaking capability of the ACR. This statement shall be only informative and not be

subjected to any evaluation. Comprehensive instructions shall be provided for the actions to be taken in case of

unpredictable loss of vacuum.

Because of the risk of overpressure due to phase to phase internal arcing, the ACR design shall be internal fault tested in accordance with IEC 62271-200, clause 6.106

and Annex A. The ACR shall satisfy an Internal Arc Classification C, 12,5kA, 0,2 sec at least.

Pressure relief facilities shall be provided to enable the ACR to withstand safely the effects of excessive pressure rise due to an internal fault. Details of how the pressure relief is achieved and how its effectiveness has been proved shall be provided in the

tender documentation.

Solid insulating material shall be used as the phase to phase and phase to earth

insulation of the ACR. This insulating material shall be highly resistant to ozone, oxygen, moisture, ultraviolet radiation and vandalization and suitable for operation in severe environmental conditions areas (powdery/salt/industrial deposits, presence of

condensation/rain/frost). Furthermore it shall contain no toxic or environmentally hazardous components.

No coatings or UV protective covers are acceptable. The solid insulating material shall provide complete encapsulation of the internal vacuum interrupter. The encapsulation shall also be completely bonded to the source

and load side bushing terminals. The creepage distance of bushings shall be 610 mm at least.

Minimum clearance between the most adjacent points of MV bushings shall be not less than 220mm irrespectively whether a successful dielectric test has been performed.

6.8. Protection against corrosion The unit shall be weatherproof in the climate conditions defined in the paragraph 3 of this description. The tank of the ACR and the bolts shall be made of stainless steel

according to EN 10882-2. Except where specified to the contrary, all iron and steel parts shall be hot dip galvanized after the various processes such as sawing, shearing,

drilling, punching, filing, bending, machining etc. according to ISO 1461 or HEDNO specification ΧΚ11.02 and the specific coating thickness mentioned therein.

7. CONTROL PANEL OF THE ACR

7.1. Control panel - RTU

The control cabinet shall comprise the Control Panel – RTU and all the electronic equipment. The RTU shall be compatible with HEDNO’s SCADA systems.

The cabinet shall be designed for the service conditions specified, adequately ventilated and fitted with substantial door securing devices capable of being padlocked by a padlock

with a shank of 8mm with the door in the closed position. It shall not be possible to easily force an object such as a crowbar between the door and the cabinet and prise the door open, when the door is closed and padlocked. A door stay shall be fitted to

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keep the door open while operators are attending the unit. A document pocket shall be provided on the inside of the door for the storage of documentation. It shall be possible to disconnect the cable at the tank while the ACR is connected to the

power network, ensuring safety and without causing damage or mal-operation. The CTs shall be protected against open circuit (if applicable). This protection shall be embedded

on the ACR itself and shall become active when no RTU or connection cable is present. A robust, multi-pin weatherproof connector shall be supplied. There shall be connectors at both the tank and the control cabinet.

The supplier shall ensure that the equipment housed in the control cabinet can withstand the heating effect of direct solar radiation of paragraph 3.1 without causing failure and/or

mal-operation. Details shall be provided in the tender documentation. The control cabinet shall be mounted below the switchgear tank and shall be connected to the switchgear by a 12 m long multi-core control cable. The multi-core cable shall be ultra

violet stabilised and adequately screened against electrostatic and electromagnetic interference, which can cause malfunctioning of the protection or control equipment. This

cable shall connect to the ACR and the control cabinet by means of plug and socket arrangements. Entry of the control cable into the control cubicle shall be from the bottom. A vandal guard shall be provided to this entry to prevent an individual from removing the

cable connector. The cabinet shall make provision for bottom entry of at least two additional cables (supply power cable etc.). This shall be done with a pre-punched suitable

sized diameter holes. The holes shall be suitably blanked off.

The control panel will be equipped with LCD backlit for night operation, menu & arrow/navigation keys for LCD’s operation; appropriate control switches/push

buttons/fast keys and indicators (LEDs) for the programming and operation of the unit and monitoring of the ACR status. The control shall have customer-programmable security

codes to limit access levels of viewing functional states, of ACR’s operation and of ACR’s full configuration settings and functions to authorized personnel.

As a minimum the control panel shall be equipped with the following local operation

features through switches/push buttons/fast keys:

A LED lamp, able to be viewed in full sunlight, shall be provided with each one of the

following switch/button/fast key to indicate its operation as well as the ACR’s status:

TRIP/ CLOSE It shall be provided one separate button for each one command. The TRIP

button and its LED shall be green and the CLOSE button and its LED shall be red. Any local operator TRIP shall not initiate a reclose operation. After a local

operator CLOSE the single shot tripping function shall become active. LOCAL / REMOTE Operation

In LOCAL position the Central Control System (CCS) of SCADA-DMS system will not have the capability to execute commands that is REMOTE operation must not be allowed.

Auto Reclose ON/OFF Earth Fault (EF) protection ON/OFF

Sensitive Earth Fault (SEF) protection ON/OFF Work Tag ON/OFF Protection group settings selection

Fast Trips Disabled ON/OFF

“Resetting” the trip-involved latched target LEDs (e.g. fault type and faulted phases flags) except from the Control OK Led and the Recloser Status area LED (see below).

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“Resetting" the RTU (if necessary). All the subsystems (including the router) shall be powered off by the user.

Battery test. It will perform the full battery life test as it is described below. Also as a minimum the following information shall be able to be viewed in full sunlight on the control panel or on the LCD through dedicated LEDs, fast keys or menu/arrow navigation keys, in order to assist the maintenance personnel:

A / B / C Phase Fault, Earth Fault, Sensitive Earth Fault Control OK

Control power OK Recloser status area (reset, cycle, lockout) Equipment integrity alarm (s)

A / B / C phase live Voltage trip

Frequency trip Cold load scheme ON Reverse power ACTIVE

Communication channel status Up to ten previous trips: Type of the fault (e.g. phase or earth) or loss of phase and

the involved phase/phases, date and time of occurrence, interrupted current etc. Operations Counter and Remaining life of the vacuum interrupters The following power system measurements: Instantaneous rms directional currents

(Ia, Ib, Ic, In), rms phase-to-phase and phase-to-earth voltage on both sides of the ACR (Vab, Vbc, Vca, Van, Vbn, Vcn), frequency, total and per phase power (kW, kVA,

kVAR), total or net power flow (kWh) on a daily, weekly and monthly basis, time period selectable maximum demand current, total and per phase power factor, sequence current and voltage magnitudes, battery voltage etc.

Furthermore the control panel shall accommodate standard electrical isolated ports for the

communication with a portable PC. The required software will run under Windows of the latest version. The portable PC isn’t in the scope of the supply. The purpose of the portable PC is tο serve to the operation of the unit and to the configuration of RTU settings

as well as to the uploading and downloading information at the installation site. As a minimum all information mentioned in the above paragraph shall be able to be viewed

also on the portable PC. There shall be a connection password when communicating between the control and a portable PC.

The control panel shall provide storage of at least 5.000 time-tagged events in its non-volatile memory. These events will be all the alarms (internal and external), the

switchgear operations, the power quality related incidents and changes to operating parameters and settings. The user may have access to them through the portable PC. All

events are written to the event Log in chronological order. The control panel shall also be capable of capturing and storing to its memory all the samples of the analog measurements and digital signals during a fault condition in order

to be graphically represented for fault analysis purposes. The capture event oscillographic reports shall be retrievable at anytime in Comtrade format by the Control Panel - RTU

software of the SCADA system. In case of network power failure there is a battery supply, inside the cabinet, for its

continuous supply. Means for the recharging of the batteries shall be included in the control panel. These shall have all the necessary provisions to keep the batteries charged

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with no loss of their life. The technique used for the battery charging shall be the so called “float” charging (involves the battery being permanently connected to the load, possibly via an inverter, in parallel with the charger). Therefore the charger shall satisfy the

requirements of both, the battery and the load.

The batteries will provide energy for the operation of all units (ACR, control panel, RTU

and communication system). They will be delivered pre-installed into the Control panel/RTU, but with their terminals not connected. The batteries must be hermetically sealed and must be maintenance free. They must have a design life expectancy of at least

10 years at 20°C operating temperature. The bidder shall provide detailed documentation from the manufacturer of the batteries to prove the above mentioned design life. The

batteries must comply with IEC 60896 Part 21 & 22 and have adequate capacity at 20°C:

to supply the operation of the RTU for at least 36 hours without charging (i.e. with AC supply OFF).

to perform at least 6 full cycles of operation of the ACR during the above time interval, even in case all 6 cycles happen after 12 hours of standby operation and at

0°C ambient temperature. The supplier shall provide documentation of the discharge charts and available capacity per temperature range, of the batteries used.

The bidder will include in the offer the proof of its compliance with these requirements

(according to the battery manufacturer specifications), giving with enough detail how the necessary capacity of the battery was chosen. Tables showing both the nominal and the

maximum consumption of the RTU, ACR, router etc. shall be provided.

The charging status of the batteries will be monitored and tested automatically. Automatic battery cut-off circuit will be provided in the RTU. It will operate when the DC

voltage drops below the safety limit (deep discharge), which may damage the batteries. Appropriate alarm must be generated and transmitted (several seconds before the cut-

off) to the SCADA CCS.

The battery system shall incorporate a battery test facility. An inbuilt instrument / instruments, which can by remotely or locally commanded, shall indicate and broadcast

to the SCADA system the health of the batteries.

The battery types provided shall have such external dimensions and electrical

characteristics, as of batteries commercially available and not be of a proprietary design.

7.2. Functions and capabilities of the RTU The remote controls and indications shall be as follows:

Remote Control (minimum specifications):

ACR tripping (any remote operator TRIP shall not initiate a reclose operation)

ACR closing (after a remote operator CLOSE the single shot tripping function shall

become active). Enable and disable automatic sequences (reclosing) Enable and disable EF protection Enable and disable SEF protection Enable and disable Under / Over Voltage protection Enable and disable Under / Over Frequency protection Enable and disable Work Tag

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Enable and disable Fast Trips Disabled function

Change of Protection setting group Reset fault flags and currents Time synchronization messages from the communication protocol Battery load test command

Remote Digital Indication (minimum specifications):

ACRs open status ACRs closed status Local/Remote status

Automatic sequence status (ON/OFF) EF protection status (ON/OFF)

SEF protection status (ON/OFF) Under / Over Voltage protection status (ON/OFF) Under / Over Frequency protection status (ON/OFF)

Work Tag Status (ON/OFF)

Fast Trips Disabled function status Instantaneous Over Current Trip Time delayed Over Current Trip Instantaneous EF Trip Time delayed EF Trip SEF Trip ACRs Lockout Active Protection setting group The following alarms:

100 V ac loss of supply Internal alarms of the RTU (watchdog)

Six (6) spare alarms (for example door open), activated by closing dry contacts Low level of battery voltage

ACR’s closing blocked by Sync. Check function Battery load test failure.

Remote Analog Indication (minimum specifications):

The following measurements (real values after interrogation of the RTU by the CCS):

R.m.s. directional phase current and residual current in A (Ia, Ib, Ic, In)

R.m.s. phase-to-phase and phase-to-earth voltage (kV) on both sides of the ACR (Vab, Vbc, Vca, Van, Vbn, Vcn). By means of a calibration procedure performed in the factory

or calibration circuit embedded in the control panel, the accuracy of the measurements achieved (transmitted to the SCADA system) shall be up to 1% of the actual value. This accuracy is required to be achieved at least, at normal atmospheric conditions of

ambient air temperature 20 C and relative humidity 65%, even though the accuracy of voltage sensors might be up to 3% throughout the hole operating range.

Three-phase active power in kW Three-phase reactive power in kVArs Total three-phase active energy in kWh on a daily, weekly and monthly basis Time period selectable maximum demand current Power factor

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Operations Counter Remaining life of the vacuum interrupters Battery Voltage

The RTU shall have an Ethernet port suitable for its communication with CCS via IEC 60870-

5-104 protocol. The same port shall be possible to be used to change the parameters of the programming of the RTU remotely, via the GPRS connection, independent of the SCADA operation.

The lower bidder shall provide before the date of the signing of the Contract an estimate of the anticipated monthly size of the data (in Mbytes) to be exchanged between the SCADA

systems and the RTU, over the IEC 104 protocol, based on the following assumptions : - Requests sent by the SCADA to verify the status of the communication, every 10

minutes.

- General interrogations for an update of the status of the RTU and update of all the measurements, every hour.

- 10 events per day.

The RTU’s SW will perform extensive self-checking (watchdog) in order to monitor the most important functions. Appropriate diagnostics will be transmitted to the CCS, as mentioned above. The bidder will state in the offer how this type of problem is addressed, giving a brief

description of the logic involved. The RTU will have the means to reset (without any external intervention) the modem / router in case it “freezes” or is “blocked” for any reason, apart

from HW fault.

7.3. Power Quality Measurements and Reports The Control panel - RTU shall have the following power quality capabilities. The user may have access to them through the portable PC:

Supply Interruption Measurement

This feature shall record the following:

Cumulative total number of interruptions; otherwise, a list of interruption events shall be reported with an entry number indicating the most recent interruption

Cumulative total interruption duration; otherwise, the starting and ending time of each interruption event shall be reported

The time and duration of each interruption event in the event log

A loss of supply voltage on one or more phases for a user-set time shall be defined as the start of the interruption. When voltage shall be restored to all

three phases for the same user-set time, the end of the interruption shall be reached. The control panel – RTU shall log the number, the total duration and

the start and finish times of each interruption on the network segment on either side of the ACR. When an interruption is detected on one side shall be timed and the data shall be recorded.

Harmonic Analysis

This feature shall calculate even and odd harmonics up to order 15 and the THD for four currents (Ia, Ib, Ic, In) and twelve voltages (six phase – phase and six phase – earth). Each harmonic level as well as the THD level shall be viewed in

a graphical form through suitable software using a portable PC. Furthermore an

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event shall be recorded in case that any individual harmonic exceeds a user - set threshold for a user – set time, indicating the harmonic, its peak value and the time stamp. Historical data logging of harmonics shall be provided.

Waveform Capture

The control panel – RTU shall have the capability of capturing and reviewing of

current (Ia, Ib, Ic, In) and voltage (phase – phase and phase – earth) waveform data, on a 1600 samples per second rate at least. The feature shall

be user configured either from the control panel or via suitable software using a portable PC.

Sag and Swell Monitoring

Sag and Swell information shall be provided of voltage outside user configured

range and set time period. Historical data logging of sag and swells shall be provided. It is to be noted that Control Panel – RTU shall be capable of identifying a voltage sag event only when the phase voltage magnitude drops

below the sag threshold and remains above the interruption threshold for a user-set time period.

7.4. Degree of Protection The degree of protection of the cabinet must be at least IP54. The door of the cabinet

shall be equipped with one piece rubber replaceable seal with no joints and gaps. The cabinet must be constructed from stainless steel and all the accessories inside must be rust-proof, or must be protected with suitable anticorrosion material.

The construction must follow the requirements specified with the IEC 60870-2-1 standard.

Also the cabinet of the control unit-RTU must have:

Natural ventilation for humidity extraction . The cabinet shall allow any moisture on the inside of the RTU to be vented outside. All vents shall be screened against

vermin entry. The design shall be such that if any water does enter, it will run out of the bottom of the cabinet without affecting the electrical or electronic parts.

Heating resistance (heavy duty type) driven by a thermostat to maintain the cabinet at 20°C to optimise the battery life.. The heating resistance cannot be put in operation in case of supply from the battery.

Additional protection on the inside, in order to allow operation of the ACR under all weather conditions, even when its front door is open for a short period of time

during a manual operation.

7.5. Protection and safety

The control cabinet shall have proper terminal for grounding all metal parts. It shall be fitted with an external M12 earthing stud, with a nut, lock nut, and a serrated washer. Provision shall be made to ensure the electrical continuity of all exposed metal. Earthing

terminals shall be fitted to all such equipment. An earthing strap shall be provided between the lid and the tank of the cabinet.

The control cable shall be adequately earthed to shield the control equipment against electrical interference.

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The cabinet shall be suitably shielded so that the mounted GSM / GPRS antenna shall not interfere with the normal operation of the equipment. Where minimum distance

requirements for the mounting of an antenna apply, these shall be stated. The control panel must comprise an adequate number of digital and analog

inputs/outputs. Α galvanic isolation of the input/output cards must exist. The voltage isolation will be 2,5kV (rms). Current monitoring circuitry in the most important parts of the RTU will be employed, in

order to cut-off the supply in case the current exceeds the safety limits (i.e. presence of a short-circuit). Also the control outputs will be protected against short-circuit, using proper

fuses. Detailed information about these features will be included in the offer and in the RTU's documentation. The Electronic circuits of the control panel (power supply, measurements ports etc.) shall

have protection against overvoltage, spikes and transients.

8. RTU’s settings

The Control panel-RTU shall be supplied complete with an integrated microprocessor based control and protection system incorporating all the features stated in the following paragraphs. All user settings and parameters shall be retained in nonvolatile

memory. The selection of the parameters of the below mentioned functions shall be done with three ways: (1) Through the control panel parameter configuration procedure,

(2) by downloading them to the RTU via the normal configuration procedure through a portable computer and (3) via the GPRS connection independent of the SCADA operation.

8.1. Directional Overcurrent Protection – Directional Blocking All overcurrent elements (Phase, Earth, SEF) can be configured to be directional, so that protection element operation shall depend on the direction of the fault current. In this

case each overcurrent element shall have two independent groups of settings, the first for forward direction faults and the second for reverse direction faults. Furthermore the RTU

shall include directional blocking function to restrict tripping on faults to a designated side of the ACR (source side or load side). The above functions shall be set ON or OFF. If directional protection is set ON all overcurrent elements shall operate using the group

of settings that corresponds to the direction of the fault (forward or reverse). If directional blocking is set ON all overcurrent elements shall operate only for the user

selected direction (forward or reverse). Finally when directional protection and directional blocking are set OFF all overcurrent elements shall operate regardless of the fault current direction. The parameters of these functions (characteristic angle,

direction of activation i.e. forward or reverse etc.) shall be adjustable separately for phase, earth and sensitive earth faults. Features shall be provided to ensure correct

operation of the directional overcurrent elements for close-up phase faults where the collapse of the polarising line voltages can occur. The ACR shall maintain directionality down to at least 1% of primary voltage. The manufacturer shall provide details to

prove this. Moreover, the manufacturer shall provide adequate polarization methods for directional ground protection which are eligible for low resistance grounded

systems (as the distribution system operated by HEDNO).

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8.2 Overcurrent protection settings

Overcurrent protection elements required are Phase Overcurrent, Earth Overcurrent and Sensitive Earth (SEF) Overcurrent. All these protection functions shall have elements

with characteristics that comply with IEC 60255. The Earth Overcurrent and SEF functions shall be equipped with harmonic filtering to prevent operation when harmonics are present in the primary residual earth currents.

The Bidder shall provide documentation to prove this.

8.2.1 Phase Overcurrent and Earth Overcurrent protection settings The protection system shall provide overcurrent protection on all three phases plus

earth of the circuit supplied by the ACR. Each of up to four shots in a reclose sequence shall have independent curve, time (multiplier) and curve modifier settings and a

common pick up current setting.

The phase fault protection system shall be independent of all other protection systems specified herein in that none of its settings shall be restricted by, or conditional upon

the settings of other types of protection.

The phase fault trip pick up value shall be programmable between 40 and 1200 amps

in steps of not more than 5A.

The earth fault protection system shall be independent of all other protection systems specified herein in that none of its settings shall be restricted by, or conditional upon

the settings of other types of protection. The earth fault protection shall be able to be programmed IN or OUT of service.

The earth fault trip pick up value shall be programmable between 10 and 800 amps in not more than 1A steps.

The phase and earth fault protection shall provide at least the following facilities on

each of the four trips:

Choice of not less than the following Time/Current Characteristics, which can be

further customized by the user:

Definite Time

IEC60255 Standard Inverse

IEC60255 Very Inverse

IEC60255 Extremely Inverse

Definite Time protection settings as an alternative to inverse time protection adjustable between 0,05 to 100s in steps not greater than 0,01s

Instantaneous protection settings as an additional element on inverse time or definite time protection or as an alternative without inverse time or definite time with multiplier of trip current setting adjustable between 1 to 30 in steps not

greater than 0,1.

Provisions to program a minimum time to trip into the time / current characteristic adjustable between 0 and 1 second in steps not greater than 0,01s.

Provision to program an additional delay time (time adder) to trip into the time / current characteristic adjustable between 0 and 2 seconds in steps not greater than 0,01s.

Time Multiplier adjustable between 0,1 and 15 in steps not greater than 0,05

Threshold multiplier adjustable between 1 and 10 in steps not greater than 0,1

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Current accuracy not greater than 5% (referred to protection relay function only).

Timing accuracy not greater than 5% or 50 ms whichever is the greater

(referred to time to initiate operation of circuit breaker only).

The number of operations to lock out shall be adjustable from one (1) to four (4) operations (e.g. for 4 operations to lock out, 0 or 1 or 2 instantaneous operations

will be followed by 4 or 3 or 2 very inverse or extremely inverse time operations respectively).

8.2.2 Sensitive Earth Overcurrent protection settings

The ACR protection system shall provide Sensitive Earth Fault (SEF) protection on the circuit supplied by the ACR. The SEF shall be available as an additional protection

element and shall operate as definite time. The number of SEF trips that can occur in a reclose sequence shall be user set between one (1) and four (4). The SEF definite time can be set differently for each trip in the ACR sequence.

The SEF protection shall be independent of all other protection systems specified herein in that none of its settings shall be restricted by, or conditional upon the

settings of other types of protection.

The SEF trip pick up value shall be adjustable from 1 to 20 A, with step not greater

than 1 A (trip current setting accuracy 5% or 0,5 A, referred to protection relay

function only).

The SEF operating time shall be adjustable from 0,1 to 100 sec, with step not greater

than 0,1 sec (operating time accuracy 50 ms, referred to time to initiate operation of circuit breaker only).

There shall be two independent stages for the SEF function. The first stage (ISEF>,

tSEF>) for sending an alarm to the SCADA CCS and the second stage (ISEF>>, tSEF>>) for tripping of the ACR.

The SEF protection shall be able to be programmed IN or OUT of service.

8.3. Under and Overvoltage (U/O) Protection

The voltage protection function shall have an over- and an under-voltage setting and a

definite time delay timer. As the power system voltage drops below the set under-voltage level or exceeds the set over-voltage level the definite time delay timer shall start and initiate a trip and/or alarm on timing out.

The function shall comply with the following criteria:

the under voltage pick-up setting range shall be adjustable from 0,6 to 0,93 pu

voltage with steps not greater than 0,01 pu. the over voltage pick up setting range shall be adjustable from 1 to 1,2 pu voltage

with steps not greater than 0,01pu

the definite time delay shall be settable with a range of 0 s to 60 s in steps of 0,1 s

selection of any one phase under voltage or all phases under voltage to alarm or/and trip. Similarly selection of any one phase over voltage or all phases over voltage to alarm or/and trip.

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The function shall be configurable (e.g. via built-in or user programmable logic) to

provide the following:

activation of alarm output only or trip output only or both the alarm and the trip outputs

ACR close blocking when measured voltage is outside the under- and over-voltage settings

Single-shot reclosing of ACR after voltage returns to normal, only if the ACR

tripped as a result of an under- or over-voltage condition. In addition, a user settable timer shall be provided for setting a reclose time delay on return of

normal voltage. The time delay shall be settable with a range of 2 s to 180 s in steps of 0,1 s.

The Under and Overvoltage protection element shall be able to be programmed IN or

OUT of service independently.

8.4. Under and Over Frequency (U/O) Protection

This protection function shall have an over frequency and an under frequency pick up and a definite time delay timer. As the power system frequency drops below the set

under-frequency level or exceeds the set over-frequency level the definite time delay timer shall start and initiate a trip on timing out.

The function shall comply with the following criteria:

the under frequency setting range shall be adjustable from 46 Hz to 50 Hz with steps not greater than 0,1 Hz

the over frequency setting range shall be adjustable from 50 Hz to 54 Hz with steps not greater than 0,1 Hz

the definite time delay shall be settable with a range of 0,1 s to 20 s in steps of 0,02s

The function shall be configurable (e.g. via built-in or user programmable logic) to

provide the following:

A frequency voltage supervision threshold with a range from 0,6 to 1 pu voltage in 0,1 increment to prevent erroneous frequency operation following fault inception.

A user selectable blocking function to inhibit the ACR from closing when the measured frequency is outside the under- and over-frequency settings.

A user selectable auto-reclosing function shall be provided that will allow a single-shot reclosing of the ACR after the frequency has returned to normal, only if the ACR tripped as a result of an under- or over-frequency condition. In addition, a

user adjustable timer shall be provided for setting a reclose time delay on return of normal frequency. The time delay shall be adjustable with a range of 2 s to 180

s in steps of 0,1 s.

8.5. Broken conductor function The ACR shall incorporate the Broken Conductor function. The function shall have a ratio I2/I1 setting and a definite time delay timer. If the ratio I2/I1 is greater than the set

value the definite time delay timer shall start and initiate a trip and/or alarm on timing out.

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Settings will be:

I2/I1 pickup from 2% to 100% with step of 1% Delay time from 1 to 30 sec, with step 0,1 sec

The function shall be able to be programmed ON or OFF. The function shall be user selectable to operate an alarm output only or a trip output only or both the alarm and

the trip outputs.

8.6. Sequence Coordination

The ACR shall incorporate the Sequence Coordination feature to allow the ACR to coordinate with downstream ACRs. It shall cause the ACR to step onto the next stage in

the protection trip sequence after it has seen a fault as well as its clearance by another device before the set time elapses for the ACR to operate.

The Sequence Control feature shall be able to be programmed IN or OUT of service.

8.7. Loss of Phase protection

The ACR shall incorporate the Loss of Phase protection feature to trip the ACR in case there is a loss of voltage on one or two phases on the upstream part of the line for a pre-set time. Loss of supply on all three phases shall not generate the protection trip. A

loss of phase protection trip will always cause lockout (i.e. no automatic reclose can occur).

Settings will be:

• Loss of phase threshold voltage range from 0,05 to 1,00 pu voltage, with step not

greater than 0,01 pu

• Loss of phase time range from 1 to 100 sec, with step not greater than 1 sec

The Loss of Phase protection feature shall be able to be programmed IN or OUT of

service.

8.8. Work Tag Tripping

The ACR shall incorporate the Work Tag tripping (Hot Line tag) to be applied when work

is being done on the network. Work Tag tripping will cause a fast trip with no auto-reclosing if a fault is detected. Phase, Earth and Sensitive Earth Faults can be configured

individually. Work tag shall take precedence over Cold Load Pickup and Fast Trips Disabled.

The Work Tag tripping shall be able to be programmed IN or OUT of service. It can be switched IN/OUT both locally (e.g. via function keys) and remotely, provided the

appropriate location of control has been selected.

8.9 Fast Trips Disabled

The ACR shall incorporate a Fast Trips Disabled feature to modify the protection, so that all trip operations use delayed curves. This feature shall be independently selectable for

each protection profile. The total trip operations shall remain the same. As an example, the control shall change its sequence from one fast and three delayed operations to four delayed operations when Fast Trips Disabled is active.

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The Fast Trips Disabled feature shall be able to be programmed IN or OUT of service. If a built-in functionality does not exist for this feature, the RTU shall be equipped with user programmable logic capabilities to allow its implementation, and the Bidder shall

provide evidence for this.

8.10. Single Shot Tripping

The ACR shall incorporate the Single Shot Mode. In single shot mode the ACR shall go directly to lockout after one trip and shall not reclose. Phase, Earth and Sensitive Earth

Faults can be configured individually. This auto reclose blocking feature shall be provided to prevent auto reclosing of the ACR if it trips for any reason within the reset time

following a local manual or supervisory close operation.

The Single Shot Mode feature shall be able to be programmed IN or OUT of service. If a

built-in functionality does not exist for this feature, the RTU shall be equipped with user programmable logic capabilities to allow its implementation, and the Bidder shall provide evidence for this.

8.11. Live Load Blocking The ACR shall incorporate the Live Load Blocking feature. When Live Load Blocking is selected all close requests shall be disregarded if any load side terminal is live.

The Live Load Threshold voltage shall be adjustable from 0,05 to 1 pu voltage, with step not greater than 0,01 pu.

The Live Load Blocking feature shall be able to be programmed IN or OUT of service. If a built-in functionality does not exist for this feature, the RTU shall be equipped with

user programmable logic capabilities to allow its implementation, and the Bidder shall provide evidence for this.

8.12. Synchronization check function

The ACR shall incorporate the sync check function. The sync check shall have the ability to close for any combination of dead/live source/load condition and to perform

anticipatory closing for a live source/live load condition by calculating the slip and leading the close based on the mechanism closing delay. Furthermore the function

shall perform verification on the source and load voltage magnitudes and frequencies to determine that they are within pre-determined ranges and that the angular difference between the two systems is also within a predetermined range. The

following settings shall be at least applicable for the sync check function:

Voltage difference from 1% to 50% of nominal voltage, with a step of 1%.

Frequency difference from 0,1% to 10% of nominal frequency, with a step of 0,1%.

Phase angle difference from 5 to 80 degrees, with a step of 1 degree.

Delay time for synchronism check from 0,1 to 30 sec, with a step of 0,1 sec

If the closing is not permitted an alarm shall be transmitted to the CCS.

The function shall be set ON or OFF.

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8.13. Inrush restraint function

The ACR shall incorporate an Inrush restraint feature to raise the pickup currents for phase and earth overcurrent protection for a definite time following electrification either

from the ACR itself or a upstream device, to prevent the ACR from tripping when inrush current occur (magnetizing current in transformers, starting current of motors etc.). The

inrush restraint function shall operate on the 2nd harmonic content principle, meaning

that it will detect high levels of 2nd Harmonic current which is indicative of transformer Inrush current at switch-on. Moreover, this feature shall come into effect only when the

current through the ACR goes to zero. It will be an additional protection feature which shall operate with inverse time and instantaneous protection.

Settings will be:

Percentage of 2nd harmonic from 5% to 50% of the fundamental frequency, with a

step of 1% Inrush Restraint Multiplier range shall be adjustable from 1 to 10, with step not

greater than 0,1

Inrush Restraint Time range shall be adjustable from 0,05 to 10 sec, with step not

greater than 0,01 sec (accuracy 20 ms)

The Inrush restraint feature shall be able to be programmed IN or OUT of service.

8.14. Cold Load Pick up function The ACR shall incorporate a «Cold Load» pick up feature to increase the probability of a

successful close operation following a period of supply interruption to the feeder being supplied by the ACR. This feature shall modify the phase and earth overcurrent curves. It shall not modify the SEF curves. The ACR shall automatically detect loss of supply and

apply the cold load pickup feature to the first shot curves, regardless of whether the ACR is open or closed, to prevent the ACRs tripping due to a reclose by an upstream device.

The «Cold Load» pick up feature will be an additional protection feature which shall operate with inverse time and instantaneous protection. When activated, this feature would increase the minimum trip threshold multiple to be applied to a specified curve via a

user settable multiplier and time. It shall use time based formula to determine the extent of the increase in tripping value.

Settings will be:

Cold Load Multiplier adjustable from 1 to 5, with step not greater than 0,1 Cold Load Time constant adjustable from 1 to 300 min, with step 1 min (accuracy

1min) The Cold Load Pickup feature shall be able to be programmed IN or OUT of service.

Alternative methods of providing this facility will be considered provided grading margins to upstream devices are not compromised (e.g. specification of a separate curve for cold load pickup, use of alternative shape overcurrent settings etc.).

8.15 Auto Reclose Settings The reclose time between a trip operation and its subsequent close operation shall be able to be independently programmed for each trip cycle.

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The required time range shall be adjustable from 0,5 s to 180 s with step not greater

than 0,1 s. Reclose time accuracy not greater than 0,1 sec. The sequence reset time shall be adjustable from 3 to 180 s with step not greater

than 1 s, with accuracy not greater than 1 s.

8.16. Automatic protection Group Selection

There shall be at least two (2) pairs of protection group settings that can be configured differently. Each pair shall comprise a primary protection group and an alternate protection group. When the power flow is in the forward (source to load) or in the reverse

(load to source) direction the primary or the alternate protection group shall be used respectively. The user may select one of the two pairs of protection groups as active

group, whose setting values will be applied. An automatic protection group selection shall be provided allowing the suitable protection group to be selected automatically changing between protection groups depending on the direction of power flow, without an

operator’s intervention. When Directional Overcurrent Protection is disabled what was the forward protection group of the pair shall become active.

The automatic protection group selection shall be able to be programmed IN or OUT of service. If a built-in functionality does not exist for this feature, the RTU shall be equipped with user programmable logic capabilities to allow its implementation, and the

Bidder shall provide evidence for this.

9. THREE CURRENT TRANSFORMERS (3 SINGLE PHASE)

The current transformers of paragraph 6.3.c. shall be in accordance either with IEC

standard 61869-2 or with IEC standard 60044-8 and suitable to provide the functions as required by this TD. They shall be of 24 kV rated voltage. Current transformers shall be

thermally rated to ACR rated continuous current regardless of the ratio selected. The current transformers must have accuracy class 5P and accuracy limit factor 15. Instead of the above mentioned CTs and the voltage sensors of § 11 of this TD, combined

instrument transformers may be accepted. These combined transformers shall meet the requirements of § 9 and § 11 of this TD.

10. ONE VOLTAGE TRANSFORMER (DOUBLE PHASE) FOR

POWER SUPPLY

The voltage transformer must have the following characteristics:

• Suitable for the operation conditions of paragraph 3 of the present TD • Rated primary voltage: 24kV

• In accordance with IEC standard 61869 -3 • Two types of transformers shall be delivered:

- Single ratio 20/0,1 kV ac

- Double ratio 20-15/0,1 kV ac. The exact quantity of each type of transformer shall be mentioned in the Call of the

Tender. • Thermal limiting output: Enough for all the units operation • Accuracy class: 1 (the accuracy rated output shall be declared)

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• Rated voltage factor KT: 1,2 • Creepage distance: 610 mm at least • Power frequency withstand voltage: 50 kV rms/1 min

• Lightning Impulse withstand voltage: 1,2/50 μs, 125kVp A 2A HRC fuse or a circuit breaker shall be provided in the secondary terminal box

of the transformer to facilitate the isolation of the secondary wiring in the event of a fault.

• It shall be accompanied by a support base with the necessary components (e.g.

adjustable brackets, mounting brackets, bolts, nuts and washers) for the attachment of the transformer on the base and for the attachment of the base on a

vertical wooden or reinforced concrete pole of approximately 160 to 330mm diameter section. The base shall be equipped with an earthing terminal suitable for a conductor of 4mm2 cross-section at least. The transformer shall be grounded to

the ACR’s earthing terminal.

11. SIX ELECTRONIC VOLTAGE SENSORS (CAPACITIVE or

RESISTIVE)

Line voltage shall be monitored on all six ACR bushings to allow remote monitoring of

voltage presence from either direction. The electronic voltage sensors of paragraph 6.3.d. shall have the following characteristics:

• IEC 60044-7 standard • 20kV or 15 kV nominal voltage

• Accuracy 3P over the operating temperature range. • Protection against electromagnetic noise • Factory pre-calibrated.

Instead of the CTs of § 9 of this TD and the above mentioned voltage sensors, combined instrument transformers shall be accepted. These combined transformers shall meet the

requirements of § 9 and § 11 of this TD.

12. COMMUNICATION CAPABILITIES

12.1. Means of Communication The equipment (Control Panel / RTU) will communicate with the Central Control System

(CCS) of a SCADA via GPRS using the IEC 60870-5-104 protocol. HEDNO will provide the required SIM cards and GPRS routers with a private APN network range and non

public static IP addresses.

12.2 Communication with existing central control systems

HEDNO has in operation three types of CCSs: the Telegyr TG8000 that uses the IEC 60870-5-101 protocol, the EFACEC SCATEX+ that uses the IEC 60870-5-104 protocol and the SIEMENS ST System that uses the IEC 60870-5-104 protocol. The Supplier will have

to implement the communication to the 3 SCADA systems, mentioned above based on the interoperability and address tables attached herein.

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The communication between the Control panel-RTU and the SCADA of EFACEC and SIEMENS shall be direct and use IEC 60870-5-104 via GPRS. The communication between the Control panel-RTU and the SCADA of Telegyr shall be performed via Protocol

Converter (Gateway) as described in paragraph 13, for conversion of the protocol of the offered RTU to the IEC 101 of Telegyr. In this latter case, IEC 60870-5-104 via GPRS will

be used to communicate between Gateway and the Control panel-RTUs and a serial link with IEC 60870-5-101 between the Gateway and the Telegyr SCADA. (see attached figure 1). In all protocol implementation, every breaker will be assigned with a unique

combination of the Application/ASDU Address and the Link/Device Address. The SCADA system will interrogate each one of the ACRin a predefined time interval and

acquire the information described in par. 7.2. This time interval is user selectable per ACR from the SCADA system. The ACR will have to respond to these requests, but also transmit events or alarms as they are generated.

13. PROTOCOL CONVERTER (Gateway)

The protocol converter (Gateway) must respect the following requirements:

1. Conversion of the IEC 60870-5-104 RTU protocol to IEC 60870-5-101 2. Each protocol converter (Gateway) shall be able to communicate with and

manage the data from at least 40 RTUs

3. The Gateway shall have at least 2 LAN ports available to communicate with the RTUs using a GPRS Router or an ADSL internet VPN connection.

4. The protocol converter (Gateway) shall be configurable with PC based software. The software package will be provided by the Supplier. The configuration will be

saved in the PC as a portable file and can be downloaded and uploaded from Gateway by the user.

5. The protocol converter (Gateway) must support at least the following functions.

a. Communication frame monitoring for master and slave protocol. b. Modem operation status monitoring.

c. Internal database monitoring. d. Internal database event display. e. Internal database setting.

14. GSM/GPRS Routers

HEDNO will provide a cellular private communication network for the communication between the ΗΕDNO’s SCADA Central Control Systems (CCS) and the ACR’s RTU. HEDNO will provide also the suitable routers at the ACR and at the CCS sites. The network will use

IP static addresses, GPRS and the IEC-104 protocol. During the tests to verify the compatibility of the provided system with the existing SCADA systems as well as during

the final system configuration, all the communication infrastructure and equipment shall be provided by HEDNO. The bidders shall state in their offer the following:

- A verification of minimum allocated space inside the cabinet of 20cm X 25cm X 10cm for the installation of the router.

- The available mounting option of the router. - A verification of acceptance of routers with power consumption of up to 10 W without

affecting the battery autonomy or the operating temperature range

- Available 12 or 24VDC power supply, and a separate 1.5A fuse, for the router - LAN port interface specifications

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- The minimum TCP IP Network characteristics, if required, such as the bandwidth, throughput, latency, jitter and error rates.

- Any other parameters requirements necessary for the compatibility of the

communication infrastructure.

15. TESTS

15.1 Type tests

The following type tests shall be carried out at the beginning of the execution of the contract, before the serial production of equipment and prior to the delivery of the first

lot (and prior to lot acceptance tests).

The type tests shall be carried out by a test laboratory accredited by a recognized independent private or public laboratory accreditation body. The test laboratory, the

tests time schedule as well as the number of samples shall be proposed from the Contractor to be approved by HEDNO’s Inspection Service within two (2) weeks from

the successful execution of the tests of paragraph 15.4 of this TD. Simultaneously within this same time period, the Contractor shall have available samples of the equipment (ACR, RTU, supply voltage transformer etc.) ready to be shipped to the

test laboratory. HEDNO will request the execution of the below mentioned type tests to the test

laboratory which will then send the results of the type tests directly to HEDNO. In case of failure of the type tests, the Contractor may submit new samples within one (1) month from the announcement of the materials failure to him, for the repetition of

the tests. In case of a failure on the new samples HEDNO will terminate the Contract due to Contractor’s fault.

The cost of the tests shall be borne by HEDNO in case the results are successful while in case of a failure their cost shall be borne by the Contractor. The costs for the

samples as well as their transport to the test laboratory will be charged to the Contractor in both cases of results (failure or success of the tests). During the period of the validity of the contract, no modification to the study, planning

and construction of the equipment is permitted without prior approval by HEDNO. In

case of any modifications detected, new type tests shall be repeated at the absolute

discretion of HEDNO.

15.1.1. Type tests for ACR and its Control panel - RTU

1. Insulation (dielectric) tests in accordance with the paragraph 6.2 of IEC 62271-111.

2. Switching tests in accordance with the paragraph 6.3 of IEC 62271-111. 3. Making current capability tests in accordance with the paragraph 6.4 of IEC

62271-111.

4. Rated symmetrical interrupting current tests in accordance with the paragraph 6.5 of IEC 62271-111.

5. Minimum tripping current tests in accordance with the paragraph 6.6 of IEC 62271-111.

6. Partial discharge (corona) tests in accordance with the paragraph 6.7 of IEC 62271-111.

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7. Temperature rise test in accordance with the paragraph 6.10 of IEC 62271-111.

8. Time current tests in accordance with the paragraph 6.11 of IEC 62271-111.

9. Mechanical duty test in accordance with the paragraph 6.12 of IEC 62271-111. 10. Control electronic elements surge withstand capability (SWC) tests in

accordance with the paragraph 6.13 of IEC of 62271-111. 11. Condition of ACR after each test of paragraphs 6.3 and 6.5 of IEC 62271-111. 12. Short time withstand current 12,5 kA, 3s and peak withstand current 31,25 kA

tests in accordance with the paragraph 6.6 of IEC 62271-100. 13. Low and high temperature tests in accordance with the paragraph 6.101.3 of

IEC 62271-100. 14. Verification of the IP coding in accordance with the paragraph 6.7 of IEC

62271-100.

15. Internal arcing test in accordance with paragraph 6.106 and Annex A of the IEC 62271-200. The ACR shall satisfy an Internal Arc Classification: C, 12,5kA - 0,2

sec, at least. 16. X-radiation test in accordance with the paragraph 6.11 of IEC 62271-103.

15.1.2. Type tests for the supply voltage transformer

Type tests for the supply voltage transformer in accordance with IEC 61869-3.

15.1.3. Additional type tests for the Control panel - RTU

1. Insulation breakdown voltage test in accordance with IEC IEC 60870-2-1 and

IEC 60870-3:

(a) Supply voltage Class VW3, IEC 60870-2-1 (2.5 kV rms/50Hz/1 min).

(b) Digital inputs Class 3, IEC 60870-3, table 6 (2,5 kV rms/50 Hz/1 min) (c) Analogue inputs

Class 2, IEC 60870-3, table 7 (0,5 kV/DC/1 min)

2. DC impulse voltage withstand test in accordance with IEC 60870-2-1 and IEC

60870-3:

(a) Supply voltage Class VW3, IEC 60870-2-1 (5 kV single HV impulse /1,2/50 μs)

(b) Digital inputs Class 3, IEC 60870-3, (table 6) 5 kV single HV impulse

(c) Analogue inputs Class 2, IEC 60870-3, (table 7) 2 kV single HV impulse

3. EMI/EMC Immunity tests in accordance with IEC 60870-2-1 (specimen ON)

(a) 4 kV surge test (common mode) (b) 8 kV in contact/15 kV in air discharge mode, electrostatic discharge test (c) 10 V/m radiated electromagnetic field test (d) 30 A/m at 1 MHz damped oscillatory magnetic field test (e) 30 A/m continuous duration sine wave power frequency magnetic field test

Temporary degradation or loss of function or performance which is self-

recoverable due to the above tests is accepted.

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4. Vibration endurance tests as per IEC 60255-21-1, Class 1

5. Environmental tests in accordance with IEC 60068 (specimen ON)

(a) Cold test as per IEC 60068-2-1, section 3, test Ad, continuous operation at

-20 C for 16 hrs (b) Dry heat test as per IEC 60068-2-2, section 4, test Bd, continuous

operation at 55 C for 16 hrs (c) Solar radiation test as per IEC 60068-2-5, procedure A, 1.120 W/m2, 72

hrs, 55 C (d) Cyclic humidity test as per IEC 60068-2-30, test Db, upper temperature

55 C, number of cycles 2

15.2 Routine tests

Routine tests shall be carried out at manufacturer’s premises and the relevant test

protocols shall be provided to the assigned inspector. The routine tests are the following:

1. Reclosing and overcurrent trip calibration test in accordance with the paragraph

7.1 of IEC 62271-111.

2. Control, secondary wiring, and accessory devices check tests in accordance with the paragraph 7.2 of IEC 62271-111.

3. Dielectric withstand test; 1-min, dry power-frequency in accordance with the paragraph 7.3 of IEC 62271-111.

4. Partial discharge test in accordance with the paragraph 7.4 of IEC 62271-111.

5. Mechanical operations tests in accordance with the paragraph 7.5 of IEC 62271-111.

6. Design and visual checks in accordance with the requirements of the present TD. 7. Routine tests for the supply voltage transformer in accordance with IEC 61869-3

at the premises of the transformer manufacturer.

During the carrying out of the routine tests, routine test certificates for the accuracy of CTs and voltage sensors of § 9 and § 11 of the TD respectively, shall be submitted to the competent HEDNO’s Inspector from which the conformity of the offered

material with the requirements on the accuracy of § 9 and § 11 of the TD shall be certified.

15.3 Sample tests (Factory Acceptance Tests - FAT)

These tests shall be performed in presence of HEDNO’s personnel at the manufacturer’s

premises, prior to delivery, after successful routine testing performed on each specimen of the batch done by the supplier. The assigned HEDNO’s inspector shall select a random sample from any lot under

delivery based on IEC 410 plans, simple or double sampling, normal inspection, inspection level II, AQL=2,5%, on which all the tests described in the paragraph 15.2

above shall be successfully carried out. Also a full operation check must be carried out to ensure that the system (ACR, Control cabinet, RTU etc.) operates according to the present TD. Operational checking must be

done using simulation techniques at the premises of the supplier.

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The supplier has to propose the procedure and duration of such tests. HEDNO has the right to modify these procedures, up to 30 days prior to the inspection period.

15.4. Sample approval regarding its communication and functionality capabilities

The following tests shall be carried out at the beginning of the execution of the contract, before the series production of the equipment. The Supplier shall deliver a

sample control panel/RTU, a sample protocol converter and the ACR simulator of §16 of this TD in order to demonstrate his successful communication with existing

HEDNOS’S SCADA Central Control System (CCS) types (of Telegyr TG8000, EFACEC SCATEX+ and SIEMENS TS) as well as to demonstrate the compliance of Control

panel/RTU’s functionalities to the requirements of this TD. The Supplier will also submit complete equipment documentation (so HEDNO’s personnel may familiarize with the equipment and be able to follow the tests) and also the list of the tests to be

made and the test equipment used. All the above mentioned equipment will be delivered to HEDNO’s warehouse within eight (8) weeks from the effective date of the

Contract. After that, HEDNO will move the equipment to its Inspection Service and with the continuous presence of Supplier’s personnel, the samples will be connected to the

CCSs and a full complement of tests will be carried out. These tests will last four (4) weeks (three (3) weeks for the communication demonstration with the three (3) types

of HEDNO’s CCSs – one (1) week per CCS type – and one (1) week for the functionality tests with one of the SCADA system). During the tests period, the Supplier will have the opportunity to make any corrections and adjustments to the HW

and SW offered, in order to achieve the required performance. During communications tests HEDNO reserves the right to ask for any kind of test it

considers necessary to prove that the equipment communicates properly with the HEDNO’s CCSs and thus increase its confidence to the offered solution. All the communication infrastructure and equipment (SIM cards, GPRS routers etc.) needed

shall be provided by HEDNO. The functionalities tests will follow the successful communication test’s demonstration.

During this phase the Supplier will demonstrate the equipment’s functionality compliance with the requirements of the TD. The tests will include all the functions which the equipment is made to perform in accordance to TD’s requirements

described in § 7.2 and §8. This four (4) weeks test period will be extended proportionally to every justified delay

caused by Force Majeure or HEDNO’s responsibility (equipment or SCADA system preparation, etc.). If the solution of problems, due to Supplier’s culpability, requires extension of the duration of the tests more than four (4) weeks, the tests may be

repeated. The repetition of the tests could last four (4) more weeks at maximum. This period will include the time required for correcting any problems in the RTU software

and hardware that have arisen during the tests. Any problems found will have to be solved without any additional cost for HEDNO. In case where, upon expiry of the sixteen (8+4+4) weeks period and any possible

necessary justified time period due to force majeure or HEDNO’s responsibility, the samples have not been delivered to HEDNO or they failed to pass the aforementioned

tests, HEDNO will terminate the Contract due to Supplier’s fault.

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It is stated that the Supplier will have to cover the expenses of its personnel during the period of the aforementioned tests.

15.5. Validity of the contractual delivery time

The contractual time of equipment delivery will begin on the issuing date of the results of successful type tests of paragraph 15.1 by the test Laboratory. It is clarified that the time required for testing, issue of the relevant test reports and tests evaluation,

will be excluded from the delivery schedule, i.e. the delivery time will be extended equally to the time required for the testing. The extension of the delivery time

concerning the time required for the tests, concerns all the partial deliveries and not only the first one. The above contractual delivery time is valid only if the Supplier respects the

contractual time concerning the submittal of the samples for the execution of the tests of paragraph 15.4 (8 weeks) as well as the contractual time concerning its proposal

for the execution of the type tests of paragraph 15.1 (Test Laboratory, tests time schedule, number of samples) and the sample’s availability, namely 2 weeks from the successful execution of the tests of paragraph 15.4 for the first samples plus 1 month

for the improved sample in case the first sample has been rejected (see attached figure 2). In case of delay in the submittal of the aforementioned samples and data

the issuing date of the results of successful type tests by the test Laboratory shall not be considered a starting point of the contractual delivery time but a previous date for a time period equal to the delay of the aforementioned samples and data.

16. ACR SIMULATION EQUIPMENT Portable ACR simulator equipment shall be provided, for the purpose of testing the configuration of the SCADA software and of the control panel of the ACR. This

simulation equipment shall be similar to the test equipment for the relays of the Primary Substation Bays. The simulator shall provide to the control panel of the ACR,

all the digital indications of the status of the ACR, as well as all the analog measurements. This shall include 6 voltage and 3 current injection with phase adjustments, in order to simulate all fault conditions of the network, that are

predicted in § 7.2 and § 8 of this TD. The injection equipment shall be fully configurable by software or menus from a touch screen. Any licenses required shall

also be provided. The simulation equipment will also execute all commands available for the ACR and shall provide feedback to the controller of the status of the ACR. This

simulator equipment will allow HEDNO personnel to perform all tests required, to ensure that the SCADA system and the ACR controller are properly configured, prior to the ACR installation. Two (2) separate devices can be provided to cover these

requirements for the analogue injection and for the digital I/Os.

17. SPARE PARTS

For information purposes the bidders must attach to their technical and economic Bid a complete list of spare parts for the equipment offered. The unit price of the spare parts must be included only in the economic Bid. The spare parts list must include all the items

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of the ACR, of the control panel/RTU (cards of RTU, modules, interconnecting flat cables etc.), of the supply voltage transformer and of the ACR simulator equipment. However the bidder will provide to HEDNO only the spare parts mentioned in the Call of

the Tender. These spare parts (type, quantities) will also be attached to the technical and economic Bid. The prices of these spare parts must be included only in the economic bid

and shall be taken into consideration for the economic evaluation of the Bids. The bidder shall commit for at least 10 years availability period of all spare parts.

18. SPECIAL INFORMATION THAT MUST BE GIVEN WITH THE

BID - REFERENCES

Every bid in order to be evaluated as technically accepted must be followed with the

following information–in other case the offer will be rejected:

(a) Declaration of the type of the offered materials and informative leaflet of the

manufacturer.

(b) The bidder must complete an item-by-item commentary on the technical description demonstrating substantial responsiveness of the equipment offered to that

description, or a statement of deviations and exceptions to the provisions of the technical description, referring to the pages of the documentation or brochure where

each paragraph is referred. The bidder will deliver all the evidence, proof, indication, explanation, to show that / how the TD’s requirements are met, even with the cost of repeating certain information. Any discrepancies shall be clearly and thoroughly

reported. Offers repeating the wording of this TD or providing only promotion leaflets, will not be considered for evaluation and the offer will be rejected. In this requirement

HEDNO gives particular importance in order to secure easier comprehension and evaluation of the offer, in short time given (without doubts and misunderstanding), without posing too much burden on the work of the Technical Evaluation Committee.

(c) The following drawings (The minimum phase to phase and phase-to-earth clearances (including clearances to the structure) shall be clearly indicated on the drawings),

leaflets, etc. that show characteristics of the offered units, their dimensions and proposed installation layouts with instructions: ACR

General outline drawing ACR’s mounting bracket

ACR’s bushing and terminal clamp/arrangement Especially for the insulators offered drawings, electrical and mechanical

characteristics, and manufacturer’s leaflets. A full description of the

mounting method of the metallic components on the insulators.

ACR’s rating plate

Control panel – RTU General outline drawing

control panel – RTU mounting bracket control panel – RTU rating plate

control panel – RTU’s internal layout; front panel layout

allocated space for the user’s communication equipment

Power supply Voltage Transformer

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General outline drawing VT’s mounting bracket VT’s bushing and terminal clamp/arrangement

VT’s rating plate Proposed installation layouts and diagram of the lifting and slinging arrangement

with instructions to facilitate the correct lifting methodology on site.

(d) The following technical manuals: Installation, operation and maintenance manual for the ACR

Installation, operation and maintenance manual for the control panel – RTU User’s guide for the configuration software

(e) Certificates to ensure that the units comply with the IEC standards mentioned in this technical description.

(f) A declaration of conformity of the material offered with the requirements of the

present TD. Any discrepancies shall be clearly and thoroughly reported.

(g) Type tests reports or Reports of Performance for the ACR and its control panel/RTU

as well as for the supply voltage transformer, issued by a test laboratory accredited by a recognized independent private or public laboratory accreditation body. The reports for the ACR and the control panel/RTU shall concern at least the tests 1 to

11 of paragraph 15.1.1 of the present TD and shall be strictly in accordance to the IEC standards mentioned in this paragraph. The reports for the supply voltage

transformer shall be strictly in accordance either to IEC 60044-2 or IEC 61869-3. The reports submitted shall concern equipment of the exact offered design, but the submission of reports for ACRs which do not meet the requirement of § 6.7 of this

TD, regarding the minimum distance of 220 mm between the nearest points of the MV terminals, is acceptable. The reports submitted, shall state that the equipment tested are strictly in accordance with the relevant requirements of the corresponding IEC standard. The test results shall verify the ratings assigned by the manufacturer.

It is understood that none of the tests of the Report of Performance submitted, is accepted to be made “under client’s instructions” or “according to client’s

specification” and such reports will not be accepted. It is also understood that detailed Type test Certificate issued by a test laboratory accredited by a recognized independent private or public laboratory accreditation

body, strictly in accordance with IEC 62271-103 for the ACR and its control panel/RTU and with IEC 61869-3 for the supply voltage transformer, are also

acceptable. The Bidder shall certify the Type tests Reports, Reports of Performance or the

detailed Type test Certificates as true copies of the original. It is explicitly stated that, after the signing of the contract, the type tests of paragraph 15 of this TD for the ACR and its control panel/RTU as well as for the

supply voltage transformer shall be carried out by a test laboratory accredited by a recognized independent private or public laboratory accreditation body as it is

clearly mentioned in this paragraph and shall be carried out on ACRs which meet the requirement of § 6.7 of this TD.

(h) A statement that upon receipt the labels of the control panel (buttons, switches,

LEDs etc.) shall be written in Greek language.

(i) A statement that the design of the ACR and the RTU shall allow the replacement of

either part, without the need of calibrating any of the units. Any adjustments

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required to ensure the accurate measurements of voltages and currents might include only the use of portable electronic device or laptop and no measurement instruments. The Bidder shall provide enough reference to prove the above.

(j) The Bidder must provide a detailed description on methodology to implement communication between the offered RTU on the field with three concurrent SCADA

systems (Telegyr, Efacec and Siemens).

(k) Declaration of the factory (ies) where the products are manufactured, with analytical information (Full address, number of employees, a brief description of the

installations, testing capabilities etc.). The factory shall possess the following certifications and capabilities and provide the relevant certificates: - ISO 9001 certification of the manufacturer covering the production field of

the offered materials. The certificate shall be guaranteed by the manufacturer, which shall also provide communication data for the

Certification Body together with its accreditation certificate as well as any other relevant data requested during the stage of the technical evaluation of

the offer, facilitating the examination of the soundness of the certificate. ISO 9001 certificate shall be in effect on the date of the offer. In addition a declaration shall be submitted that during any Contract resulting from the

Inquiry, the ISO 9001 certification of the factory of the manufacture shall be in effect.

- Adequacy of the testing equipment for routine and lot acceptance testing. - A declaration of the manufacturer of the insulators offered and the relevant

data regarding quality certification (submittal of ISO 9001 certificate).

HEDNO reserves the right to examine on site the factory’s capabilities in manufacturing the offered materials, during a possible Contract.

(l) The manufacturer must have references from Electric Utilities (name of the Utility, address, phone number, fax number, e-mail etc.), for ACR having the same solid insulation medium, vacuum breaking chamber and magnetic actuator operating

mechanism as well as rated maximum voltage, rated continuous current and rated symmetrical interrupting current equal or higher than 24kV, 630A, 12,5kA

respectively. In the reference letters, the buyer, the type of ACR, the quantity, the date of delivery and the country of installation shall be mentioned, as well as, whatever information is deemed to be useful for proving the long term successful

operation of the material. The units must be installed and operate successfully in the network for at least the last 3 years. The number of the units must be at least

equal to the half of the number of the tender. As proof original or true copies of Appreciation letters are preferred but copies of sales contract are also accepted. In

case of orders awarded by Electric Utilities to Third Parties, such as in the case of indirect order to the ACR manufacturer, as proof of experience will be submitted true copies of the contract between the Electric Utility and the Third Parties as well

as that between the Third Parties and the manufacturer.

(m) The manufacturer must have references from Electric Utilities (name of the Utility, address, phone number, fax number, e-mail etc.), for the offered or similar type Control Panels (namely Control Panels which cooperate with MV overhead network

switchgear (Load Breakers, Reclosers)). In the reference letters, the buyer, the type of Control Panel, the quantity, the date of delivery, the country of installation,

the manufacturer and the type of cooperated switchgear equipment shall be mentioned as well as, whatever information is deemed to be useful for proving the

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long term successful operation of the material. The units must be installed and operate successfully in the network for at least the last 3 years. The number of the units must be at least equal to the half of the number of the tender. As proof

original or true copies of Appreciation letters are preferred but copies of sales contract are also accepted. In case of orders awarded by Electric Utilities to Third

Parties, such as in the case of indirect order to the Control Panel manufacturer, as proof of experience will be submitted true copies of the contract between the Electric Utility and the Third Parties as well as that between the Third Parties and

the manufacturer. Furthermore sales catalogue concerning the offered and similar Control Panels shall be submitted.

(n) For the type of insulators offered References (sales list, reference letters homologations) from Electric Utilities (name, address, phone number, fax number, e-mail, etc.), proving that the manufacturer is in uninterrupted operation and

produced at least 6.000 pieces of the identical type as that offered, and that these insulators are operating successfully in the network, for at least the last 3 years.

Separate proof of references of the insulator experience is not required provided manufacturer states that the insulators offered are the same included in the references provided against position 18.l above.

(o) Full details of the material used as solid insulating medium and of the manufacturing process of the solid dielectric insulated poles as well as of the tests

carried out to ensure quality and performance.

(p) The manufacturer of the supply voltage transformer must have references from Electric Utilities (name of the Utility, address, phone number, fax number, e-mail

etc.), for the same or similar supply voltage transformers (with equal or higher rated voltage and with equal or better accuracy class). In the reference letters, the

buyer, the type of transformer, the quantity, the date of delivery and the country of installation shall be mentioned, as well as, whatever information is deemed to be useful for proving the long term successful operation of the material. The units

must be installed and operate successfully in the network for at least the last 3 years. The number of the units must be at least equal to the half of the number of

the tender. As proof original or true copies of Appreciation letters are preferred but copies of sales contract are also accepted. In case of orders awarded by Electric Utilities to Third Parties, such as in the case of indirect order to the transformer’s

manufacturer, as proof of experience will be submitted true copies of the contract between the Electric Utility and the Third Parties as well as that between the Third

Parties and the manufacturer.

Note: Tests reports, reference letters, copies of contract etc. shall refer to materials

manufactured in the factory where the materials offered will be manufactured.

19. DOCUMENTATION

The supplier must provide, for approval by HEDNO within 30 days from the effective date

of the contract, three complete sets of the documentation for all units, in hardcopy and in electronic form. The documentation must include:

Description of all offered units

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Description of the operation of all units The drawing of the electronic parts of the units which will describe in every detail the

internal wiring of the RTU cabinet with its terminal blocks and connectors

Block diagrams of the various HW modules of the RTU showing the way they are interconnected and the connections between RTU – ACR

Maintenance instructions

20. TRAINING The supplier will provide for HEDNO four (4) courses of training, each one lasting five

(5) days, at different geographical sites in Greece (i.e. Athens, Thessalonica, Patras, Lamia) and not necessarily in sequential time intervals. Additionally, after the end of the 4th training course, one more training course, lasting three (3) days for each one of

the 4 locations mentioned above, in order to resolve any outstanding issues and problems encountered.

HEDNO and the supplier will agree on the most convenient time for the courses. One Control Panel/RTU and all the necessary equipment (protocol converter (Gateway), modems etc.) and documentation will be used for this training.

The training shall include, at least, the following:

The Control Panel/RTU HW components piece by piece The Control Panel/RTU's SW main functions The function of the Control Panel/RTU as a unit

Description of the communication software Maintenance of the Control Panel/RTU

Operation of the ACR The function and maintenance of the protocol converter Programming and use of the Breaker simulator.

Installation techniques and considerations.

21. INSTALLATION AND COMMISSIONING OF THE FIRST

TWENTY (20) UNITS

The installation and commissioning of the first twenty (20) units (ACR, Control Panel/RTU, supply voltage transformer etc.) will be done by staff of HEDNO or its subcontractors, in presence of the Supplier who will oversee the procedure and will provide the necessary

instructions for the proper installation of the units, without extra charges for HEDNO. This procedure will serve as an additional hands-on/on-site training. Specifically four (4) units

will be installed on each of the following Regional Departments of HEDNO: - Regional Department of Attica, - Regional Department of Macedonia-Thrace,

- Regional Department of Peloponnese - Epirus, - Regional Department of Central Greece and

- Regional Department of the Islands. Programming the RTUs and their modems as well as their integration with the existing SCADA systems of HEDNO (Telegyr TG8000, EFACEC SCATEX +, SIEMENS TS) will be

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implemented by staff of HEDNO, in presence of the staff of the Supplier, which will thus be trained to the executing this type of work in the future. The aforementioned work will be accomplished within two (2) months following the first

(1st) partial delivery of equipment to the Central reception Warehouse of HEDNO. The work will be ensured by the relevant Section of the Network Department (Distribution

Network Control Centers Section) in collaboration with staff of the relevant Departments of HEDNO (Regional Departments) and the Supplier. After the successful installation and operation of the 20 units and the successful functional

tests, a SAD (Site Acceptance Document) will be signed between the Contractor and HEDNO.

The Supplier will have to cover the expenses of its personnel during this period. The work of programming of the RTUs and their modems for all other ACR of the Declaration, as well as their integration to the CCS system of HEDNO, shall be

implemented by personnel of the Supplier, as indicated in paragraph 22 of this TD. The work of installation and commissioning of other ACR and Control Panel/RTU in the MV

overhead networks will be performed by qualified staff of HEDNO in collaboration with staff of its Contractors involved in the construction of distribution networks.

22. WORKS FOR PROGRAMMING OF THE RTUS & THEIR

MODEMS AS WELL AS THEIR INTEGRATION TO THE CCS

SYSTEMS OF HEDNO

The works of programming of the RTUs for all ACR of the Declaration, except the first twenty (20) units of paragraph 21, as well as their integration to the CCS systems of HEDNO, will be implemented by the abovementioned, according to paragraph 21, trained

personnel of the Contractor as follows:

22.1 The works of programming of the RTUs will be carried out in large numbers in the sites of the warehouses, laboratories or offices of the relevant Regional Departments of HEDNO in Athens, Thessaloniki, Patras and Lamia, before the equipment (ACR,

Control Panel / RTU, modem, etc.) are shipped for installation in the overhead MV network.

These works will include the programming of the modem of every ACR. Works to be carried out on modems shall relate to their customization regarding the LAN port

settings and their integration in VPN. Specialized settings on SIM cards and mobile network are outside of the Supplier's obligations. For each partial delivery of equipment to the warehouse of each Regional Department of HEDNO, an authorized

agent of the relevant Regional Department of HEDNO will provide in writing to another authorized agent of the Supplier the information required for the

configuration of the modems of the current partial delivery. This information will be provided to the Supplier within one (1) month since the delivery of equipment of each partial delivery to the warehouse of each Regional Department of HEDNO, in

Athens, Thessaloniki, Patras and Lamia correspondingly.

22.2 The work of integrating the RTUs of each partial delivery to the CCS of the SCADA systems will be carried out en masse to the CCS sites of the Regional Departments of HEDNO in Athens, Thessaloniki, Patras and Lamia. These works are primarily

concerned with the updating of the software and the database of the CCS with new

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data and secondly in testing the communication and the proper display of signals. For the completion of these works, the programmed modems of paragraph 22.1 shall be used, together with the simulator and a sample of RTU. The sample of RTU shall

be programmed each time according to the location it in intended to be installed, connected to the corresponding modem and using the simulator, all entities of the

database corresponding to this ACR shall be tested. 22.3 The works of paragraphs 22.1 and 22.2 shall be completed by the personnel of the

Supplier separately for each partial delivery of the equipment mentioned in the Contract, within a period of six (6) months from the receipt of the equipment of each

partial delivery to the warehouse of each relevant Regional Department of HEDNO or prior to the arrival in the warehouse of the next scheduled partial delivery, under the condition that HEDNO will provide the necessary information to the Supplier within

the above mentioned time period (1 month). These works shall be carried out by the Supplier simultaneously in five (5) Regional Departments of HEDNO.

The Supplier is obliged to make available with his responsibility and expenses, all the personnel required for the fulfillment of its obligations regarding the execution of above mentioned works. The personnel used by the Supplier for the execution of

works, independently of its specialty, will be capable numerically adequate and with all the qualities and the conditions foreseen by the Greek Law and the related Rules,

so that it ensures the correct and in time completion of the works. For the execution of the above mentioned works the physical presence of the personnel of the Contractor in the work areas (warehouses, workshops, CCS’s places), is required,

with working hours from 7:00 a.m. ÷ 15:00 p.m. Monday to Friday, excluding public holidays, as they apply to staff HEDNO.

Within five (5) days from the date of delivery of the equipment in the 1st partial delivery to the central warehouse of receipt of HEDNO, the Supplier shall notify in writing its authorized agent to each Regional Department of HEDNO as well as to the

Central Technical Service of HEDNO (Network Department), to which each Regional Department of HEDNO will send the abovementioned information. The said agent of

the Supplier will contact in writing with the appropriate Regional Department of HEDNO for carrying out the works of paragraphs 22.1 and 22.2. Also within five (5) days from the date of delivery of these items to HEDNO the Supplier shall submit a

work schedule to each Regional Department of HEDNO, with its notification to the Central Technical Service of HEDNO (Network Department).

22.4 Payment for the programming works of the RTUs & their modems as well as for the

integration of the ACR to the CCS of HEDNO, shall be made in parts, per month, with the condition that an authorized agent of the Supplier will submit a written notification of completion of the corresponding part of work to the relevant Regional

Department of HEDNO. Payment for the works shall be made following a successful quantitative and

qualitative acceptance of works, which will be evidenced by a relevant certification protocol (successful execution of works) signed by authorized relevant personnel of HEDNO and the Supplier, and the presentation of the relevant invoice of works and

all relevant documents as is stated in the other Special Terms of the Contract under the paragraphs describing the method of payment.

In the certification protocol the number of ACR (RTU & modems) will be specified, for which the works of paragraphs 22.1 and 22.2 were completed by the Supplier in the corresponding month.

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The invoice shall state separately the price of the programming works of the RTU and their modems from the price for the work of integration of the above (RTU & modems) to the CCS of HEDNO.

22.5 If, during the quantitative and qualitative acceptance of works delays are detected by

the authorized relevant personnel of HEDNO, relative to the date of completion of works over the equipment (RTU & modems) of each partial delivery, as mentioned in paragraph 22.3 (within 6 months), an amount equal to 100,00 € will be withheld for

each set of equipment and for each week of delay (as determined by the abovementioned schedule).

If, during the quantitative and qualitative acceptance of works deficiencies or deviations from the data provided by HEDNO to the Supplier, are detected, then depending on the nature and volume of the deficiencies and / or deviations, these, at

the discretion of the authorized representative of HEDNO, will either be remedied by the Supplier during the delivery, or will be recorded in the protocol of execution of

works and the relevant restoration works will be included in the works of the Supplier that will be received next month.

22.6 By participating in the Contest, Bidders acknowledge that during the implementation of the works of this paragraph they will be given data by HEDNO. These data are

confidential and Bidders and the Supplier are required to take all necessary measures to protect them. Specifically, the contestants and the Supplier: a. They should explain these obligations to all their staff who will handle such data.

b. We will not disclose any element of the above to any third party without the written permission of HEDNO.

c. Will not use such data and / or information related to work for any other purpose without the written permission of HEDNO.

d. In case of leakage of information, HEDNO will be able to claim compensation

reserving all legal rights. The Supplier together with the Contract will also sign a "CONFIDENTIALITY

AGREEMENT" with HEDNO (attached draft contract). 22.7 The Supplier shall have full and exclusive responsibility to employ staff in accordance

with the requirements of the labor and social security legislation, including the payment of their employees earnings, which in no case should be less than predicted

by the relevant collective employment contract, of compliance with statutory working hours, of payment of the statutory contributions of personnel, of strict compliance

with the conditions of health and safety of workers, etc. The Supplier is responsible by the Greek Civil and Penal Code for all deeds and/or omissions of its personnel related to this Contract.

The Supplier is obliged to grant its staff all appropriate Personal Protective Equipment (PPE) according to the work in progress and to take all necessary by law

measures for the healthcare and safety of the workers in accordance with the applicable legislation. HEDNO shall not be liable for any accident or compensation for any of the Contractor's staff in the event of an accident.

The Supplier is obliged to stipulate with insurance companies (Greek or foreign) and maintain and follow with his own expenses, the following insurances:

• Insurance against every danger • Insurance of legal responsibility of the Supplier towards third parties • Insurance of the personnel occupied with the execution of works

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22.8 The Supplier is responsible for any damage caused by whatever reason or cause related to the execution of works, including those for damage caused due to omissions by the Supplier during their execution. The Supplier, during the

performance of the works is obliged to take all appropriate measures to prevent and avoid damage to HEDNO facilities, special care should be taken for this purpose. The

Supplier is responsible to HEDNO for all direct and indirect expenses that might burden the latter due to non-fulfillment of the obligations of the Supplier. HEDNO can offset these requirements by any amounts owed to him for any reason whatsoever,

in accordance with the Contract.

23. GUARANTEE

The guarantee period will be three (3) years at maximum for all units supplied. The

guarantee period will start from the date of installation and shall not exceed five (5) years from the date of delivery. HEDNO will provide upon request of the Supplier proof of the

Serial Number and date of installation of the ACRs. According to the above mentioned, the warranty period shall expire five years after receipt of the equipment, or three years after its installation on the network, whichever comes first. The data regarding the equipment's

installation shall be delivered by HEDNO to the Supplier each semester. On this file the serial number, the date and the location of ACR's installation shall be referred.

The Supplier must be fully responsible for the proper operation of all the units for the guaranteed period. During the guarantee time period the Supplier, free of charge will:

Correct any RTU SW fault which will be found. The same is also valid for the protocol converter SW.

Correct any communication problems that may arise (due to the equipment supplied).

Correct any error or omission which will be found in the documentation.

Respond to any information required by HEDNO. Make any modification requested, which will improve the RTU's compliance to the

specifications.

In the case of RTU and protocol converter SW malfunctions if after HEDNO's personnel has performed all checks, according to the training and documents received, the fault reasons are not identified or solved, then an onsite intervention of the Supplier shall be

required. Regarding the interventions to correct any RTU and protocol converter SW fault the

following will apply: Maximum time for answering to HEDNO (notice of a problem) to the telephone,

FAX or e-mail : 2 h, from 8 a.m. to 3 p.m. from Monday to Friday, except official

holidays, as they apply to Greece. Maximum time between acknowledging the problem reported above by HEDNO

until the arrival to HEDNO's Local Unit in order to visit the site escort by HEDNO's personnel: 2 working days.

Maximum time between on-site intervention and resolution of the problem (return

to repair conditions): 15 working days (in case the intervention has to be supplied to all locations shall be concluded within 3 months).

Failure to provide support within the above mentioned times, will incur a fine of 240,00€ per day of delay. For intermediate delays (e.g. hour) the fine will be determined by

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linear interpolation. In case of simultaneous events the Supplier shall proceed to interventions and corrective actions in a sequentially manner.

The Supplier won't be responsible for any delays regarding compliance with the maximum times mentioned above, if those delays result from force majeure cases. The

Supplier shall notify HEDNO, by registered letter, in the advent of any situations mentioned in the previous clause immediately or in any case within 15 days from the occurrence date, if all other means were tried to avoid or minimize the delay in the

promised obligations. The Supplier has the sole responsibility of employing its personnel according to all the

legal requirements and providing all personal and health insurance for him. HEDNO could not be held liable for any injuries or compensation to the personnel of the Supplier.

In case of equipment failure (ACR, RTU, supply VT, etc.) on the network or in HEDNO's

warehouses, HEDNO shall replace it with equipment that will get from the stock of spare parts, which will be delivered with the 1rst partial delivery of the Tender's materials. The equipment which was failed on the network shall be carried by HEDNO to HEDNO's

Regional Warehouses to be checked for finding the causes of failure. The failure will be announced immediately to the Supplier (e.g. the place where the

equipment had operated, the warehouse where has transferred etc.) regardless of the results of the check performed by HEDNO to ascertain the causes of failure (1rst failure announcement, regardless of the causes of failure).

The check of the causes of the failure shall be performed by HEDNO within 1 month from

the date of the 1rst announcement of failure to the Supplier. If the check reveals that the failure is due to the Supplier, this will be announced to the Supplier, within this period of 1 month (2nd failure announcement, failure due to the Supplier).

Regardless of the causes of the failure, the Supplier must replace within three months

from the date of the 1st failure announcement all the materials used, for replacing of damaged, from the stock of HEDNO's spare parts with new ones. For each month that delays the timely replacement of the materials used by the stock of HEDNO's spare

parts, the price of materials will be retained by the letter of guarantee. For intermediate delays (days) the fine will be determined by linear interpolation. The delivery of these

materials by the Supplier must be made with packaging similar to that provided by this TD.

Within two months from the date of the announcement of the failure due to the Supplier (2nd failure announcement, failure due to the Supplier), the Supplier has the right to

demand in writing the presence of his representative during reexamination of the causes of failure. This reexamination must take place within this period of two months. In case

that the Supplier within the aforementioned period of two months does not make any request to be present during the reexamination of the causes of failure, or does not attend despite his relevant declaration, it shall be considered as a fact that he

unreservedly acknowledges himself as responsible to for this failure. Furthermore if the Supplier within this period of two months does not throw any doubt concerning the

failure of the equipment it shall be considered as a fact that he unreservedly acknowledges himself as responsible to for this failure.

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During reexamination of the causes of failure a relevant Control Report shall be drawn in duplicate and signed by both Supplier and HEDNO. This report shall state the cause of the failure that was ascertained and the Supplier will declare that he acknowledges it. In

cases of disagreement the matter shall be referred for further judgment by a Committee consisting of the Head of Distribution Network Control Centers Section of HEDNO's

Network Department or his substitute, the Head of Inspection Section of the HEDNO's Material, Purchasing & Transportation Department or his substitute, as well as of the Head of the Supplier's Study Office or other representative of him. In cases of

disagreement and until the Committee comes to a decision, the Supplier is deemed responsible for the failure. The acknowledgement from the part of the Supplier of the

equipment failure ceases to have any legal effect from the moment the Committee judges that the failure in question is not due to the Supplier's responsibility.

In case that the equipment failure is due to the Supplier's responsibility:

The cost of the repaired or new materials to be supplied by the Supplier to replace the materials taken from the stock of spare parts, for replacing of damaged, shall be borne entirely by the Supplier.

The Supplier is obliged to accept the failed equipment from HEDNO's Regional

Warehouse, within two (2) months from the date of recognition, as above, by the Supplier that the failure is due to him, and to transfer it to his factory or to a factory of his choice. The cost of this transportation shall be borne entirely by the

Supplier. In case of delay beyond of 2 months, HEDNO is entitled to send the equipment failed in the Supplier's factory.

All replacements, transportation and loading/uploading costs of the damaged

equipment from HEDNO's workshops as well as the transportation and

loading/uploading cost from HEDNO's Regional Warehouse to the Supplier's factory, if these are carried out by HEDNO, shall be borne by the Supplier entirely

and shall be retained by the letter of guarantee. Replacement, transportation and loading/uploading costs of the damaged equipment, for replacing of the damaged equipment from another one, are

calculated in accordance with HEDNO's Contracts that were signed with Contractors involved in the construction of distribution networks or upon final

account. In case of transportation of the damaged equipment from the HEDNO's Regional

Warehouse to the Supplier's factory, transportation costs shall be calculated in accordance with applicable decisions of the Ministers of Commerce and Transportations being in force or upon final account.

These costs shall be notified to the Supplier immediately after he has received the damaged equipment or after it is sent at his factory by HEDNO.

In case that the equipment failure is not due to the Supplier's responsibility:

The cost of the repaired or new materials to be supplied by the Supplier to replace the materials taken from the stock of spare parts, for replacing of damaged, shall

be borne entirely by HEDNO, according to Contract's spare parts price list.

All replacement, transportation and loading/uploading costs of the damaged

equipment from HEDNO's workshops will be borne entirely by HEDNO.

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At the end of the guarantee period, HEDNO and the Supplier will sign a protocol on the equipment's behavior for the release of the Letter of Guarantee.

24. NAMEPLATES AND MARKING The ACR, the control panel and the auxiliary power supply VT shall carry a nameplate, suitable to withstand the environmental conditions, at a position visible at normal

operation position, with engraved letters.

The ACR nameplate shall include at least the following data:

• Name or trademark and address and phone of the manufacturer • Date of manufacture, product type and serial number

• Contract number • Rated voltage (kV)

• Rated continuous current (A) • Rated frequency (Hz) • Rated short time withstand current and duration (kA rms, sec)

• Rated symmetrical interrupting current (kA rms) • Rated impulse withstand voltage 1,2/50 μs (BIL):

- Between phases and the earth (kVp) - Across the isolating distance (across the terminals of open switch, of same

phase) (kVp) • Dry power frequency withstand voltage (1 min) phase to earth and across

interrupter • Wet power frequency withstand voltage (10 sec)

• Weight (kg)

The control panel nameplate shall include at least the following data:

Name or trademark and address and phone of the manufacturer Date of manufacture, product type and serial number

Contract number CE marking

Weight (kg) The auxiliary power supply VT name plate shall include at least the following data:

Name or trademark and address and phone of the manufacturer

Date of manufacture, product type and serial number Contract number

Primary and secondary rated voltages (kV) Rated power (VA)

Rated frequency (Hz) Accuracy Class

Rated impulse withstand level (kVp) Weight (kg)

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25. PACKING The equipment shall be packed in durable wooden cases of suitable dimensions, with all sides totally closed. The cases shall withstand external environmental conditions,

like rain, humidity, ambient temperatures etc. The packing shall ensure that the equipment shall be protected against damages

during transportation, loading and unloading. The wooden cases shall be packed together on EU type pallets and the total weight of pallet one shall not exceed 550 Kg. On two opposite sides of each case the following data shall be marked in a clear and

indelible way:

Manufacturer / Year of manufacture / Contract Number Description, type and serial number of contents HEDNO material code number

Gross weight in kg

Attached:

- Figure No 1:Communication between the Control panel-RTU and the HEDNO’s

SCADA CENTRAL Control Systems - Figure No 2: Time schedule from effective date of contract until start of production.

- Drawings Nr F-5, FCP-4 & FCP-5 - Indicative construction drawing of a telecontrolled ACR - PPC/ΧΚ 11.02/11.03.2008: Hot dip galvanizing in iron and steel hardware

- Telegyr TG8000, EFACEC SCATEX+ and SIEMENS ST type Interoperability and address tables

- CONFIDENTIALITY AGREEMENT

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Figure 1

Communication between the Control panel-RTU and the HEDNO’s SCADA Central Control Systems

GATEWAY

CCS SIEMENS

ST

ACR #1

ACR #820

CCS TELEGYR TG8000

CCS EFACEC

SCATEX +

IEC 104

IEC 104

IEC 104

IEC 101

After SCADA

Transition

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Figure 2 Time schedule from effective date of contract until start of production.