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Eneroptim is an electrical engineering company created in
February 2001 which undertakes activities for promoting the
energetic products and services both for
the power production, transmission and distribution companies
and for large industrial consumers.
Eneroptim is acting on the market of electrical
power in Romania being the only distributor for a
wide range of electrical equipments manufactured
by A-EBERLE Germany, ISA Italy, EGE Czech,
IBERCONTREL Italy, ETAP SUA, TRIDELTA
Germany, DIMAT Spain and YINGLI SOLAR
China.
For the commercialized products we offer the
necessary advice in order to choose the most
efficient tehnical and economical solutions
according to the project requirements.
Designing and executing indoor / outdoor
cubicles, IP54, in most cases based on own
projects that can be adjusted according to the
customer needs.
Control panels, Distribution cubicles for AC and
DC, Measurement panels, Control and protection
/ Automation Bay, Indoor and outdoor panels.
Our team of specialists, power and automation
engineers, can solve your request in proper time
both for choosing the optimal equipments for your
investment and necessities and also for
implementing these.
Our services are not limited for equipment
deliveries only. We can complete them with
sketches for mounting and technical assistance
at commissioning, too.
We provide qualified personnel for configuring and
testing of a wide range of protective relays and
automations : SIEMENS, AB B, ALSTOM, ZIV, A-
EBERLE, EATON, EFACEC, ThYTRONIC,
MICROELETTRICA, using modern testing
equipments (triphased injection test sets, primary
currents test sets and so on), following the
procedures imposed by the manufacturers, but
also the requirements of the customers.
Manufacturing of these products is realised based
on our own projects and is continuously
supervised, step by step, by the QA System.
The technical solutions are discussed and agreed
since the contracting phase thereby the
customers satisfaction for the final product is
guaranteed.
Our team of specialists provides the following
services:
- Electrical design
- Manufacturing of control and protection /
automations cubicles
- Commissioning / On-site Assistance
- Energy Consulting Services
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A. Eberle GmbH was founded in 1980.
The aim of the company then was to
develop and manufacture products for
the electronic industry. Since 1995
things have changed. A. Eberle GmbH
& Co. KG now has its own sales
organisation with international focus and
clearly changed priorities. Their most
important fields in business comprise
today:
- Voltage regulation of tap-changing
transformers and transformer monitoring
- Low voltage regulation of distribution
transformers
- Regulation of Peterson coils and earth fault locating in
medium and high
voltage networks
ISA has been specialising in electrical
test equipment for the power industry
for 70 years, with sales representatives
in 80 countries on 5 continents.
All ISA Test Instruments have three
characteristics world-wide recognised:
Innovative , Rugged, User friendly.
All ISA Test and Measurement
Instruments have been designed to be
used in severe environment such as
high voltage substations and heavy
industry plants.
All our Test Instruments are developed,
designed and constructed to comply with the IEC, CE and the most
used
international standards.
EGE is a group of companies
assembled in an internationally
operating holding company, offers
primarily deliveries of special equipment
for the power engineering industry as:
- Arc suppression coils (Petersen coils)
- Earthing transformers.
- Neutral point resistors
-3 Phase shunt reactor
IBERCONTREL ELECTRONICA was
born as a joint venture of
complementary union of forces for
offering the best possible service and
assistance in the Electric Industry field,
being our partnership companies the
following:
CONTREL ELETTRONICA SRL. Italian
manufacturer,
THERMOSYSTEMS SRL. Italian
manufacturer and BROLEC
ELECTRICIDAD S.L. Spanish
company.
The main sold products are:
Compalarm Alarm Systems, Digital Multimeter, Eartnh Leakage
Relays,
Electrical Multifunction Analyzer, Insulation Resistance, Panel
meters,
Residual current devices.
ETAP is a full spectrum analytical
engineering firm specializing in the
planning, design, analysis, operation,
training, and computer simulation of
power systems. It is the most
comprehensive power system
enterprise solution. ETAP employs a
research and development team
supported by a staff of engineers and
scientists who have a combined
knowledge of over 500 years
experience. ETAP is privileged to have
a permanent staff of power system
engineers, many of whom have been internationally recognized as
experts in
their field. It is a collection of software modules which gives
electrical
engineering professionals the means to create a detailed design
of their entire
electrical distribution systems and then perform a set of
simulations.
TRIDELTA surge arresters Germany
and TRIDELTA Parafoudres S.A.-
France are subsidiaries of the Tridelta
group.
AREVA Parafoudres S.A was converted
to TRIDELTA Parafoudres S.A. in 2009.
Both companies manufacture surge
arresters for applications in high voltage
and medium voltage electrical system
for more than 50 years.
Furthermore they manufacture DC-
surge arresters up to 4 kV.
ZIV COMMUNICATIONS DIMAT is
located in Barcelona with a team of one
hundred people and a network of agents
and distributors in more than 85
countries ready to provide solutions for
our customers. In addition, there are five
companies and offices in Brazil, USA,
Dubai, Singapore and Russia.
Teleprotection Systems
Networking for Smartgrids.
Yingli Green Energy (NYSE: YGE) is
a leading solar energy company and is
the worlds first fully vertically integrated
photovoltaic manufacturer.
We develop, manufacture, and sell
high-quality modules under the brand
Yingli Solar to a wide range of markets,
including Germany, Spain, Italy,
Greece, France, South Korea, China,
Japan, Brazil, Australia, South Africa,
Mexico and the United States.
With over 4.5 GW of modules installed
globally, is a worldwide leader in solar
production.
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EGE is a group of companies assembled in an internationally
operating holding company, offers primarily deliveries of special
equipment for the power
engineering industry as arc suppression coils (Petersen coils),
Earthing transformers, 3 phase shunt re actors and neutral point
resistors.
NEW !
TKFC 3-phase shunt reactors are used to compensate the reactive
power.
With the development of renewable electric power sources the
compensation of reactive
power gains more significance.
TKFC 3-phase shunt reactors are designed for the fixed value of
the reactive power.
Typical parameters of the TKFC reactors are:
- networks of 6, 10, 15, 20, 35 kV
- power up to 5000 kVA
- connection group Y or YN
Resistors
The SRA 2250/6 Resistor is intended to increase the active
component of residual current passing through the point of a
ground fault. The device is designed for connection to the
secondary winding of an arc-suppression coil. The system of the
resistors automatics makes it possible to fit the resistance of
the device to the character of the earth fault and thus
enhance reliability sensitivity of ground-fault protection
relays.
The ARS-01 Automatics is designed to control the SRA Resistor,
namely to connect it to / disconnect from the winding of
the arc-suppression coil while the network is experiencing the
ground fault. The automatics matches the resistance of the
device to the character of the earth fault and monitors thermal
loading of the resistor. When used together with the ARS
Automatics, the SRA Resistor offers the optimal value of
resistance being connected and improves the reliability
sensitivity of ground-fault protection relays also to high-ohmic
faults.
Arc Suppresion Coils
EGE arc suppression coils are produced and tested in complience
with the international standard IEC 289.
Arc suppression coils (Petersen coils) are used to compensate
for capacitive currents when ground faults occur on an
electrical network.They are connected to the distribution
network node. EGEs arc suppression coils are smoothly
adjustable arc suppression coils covering:
nominal network voltages from 6 kV to 110 kV
rated power from 125 kVA to 12 700 kVA
short-term and continuous operation
EGE also provides special design of arc suppresion coils
earthing transformer active part can be placed together with an
active part of an arc suppression coil in a shared housing. This
solution is known as combined arc suppression coil.
Earthing resistors for HV networks
Earthing resistors serve connections between the neutral points
of distribution network to grounds in networks operating
ith resistor-grounded neutral points. The purpose of the
resistor-grounded neutral is to dampen overvoltage during
ground
f
faults and provide sufficient current values for pro tection,
causing the affected network section to trip rapidly. Cooling
of
uch components is facilitated via natural air circulation.
Earthing transformer ETR
ETR earthing transformers are used to create an artificial
neutral in distribution electric networks.
Typical parameters of ETR earthing transformer are:
networks of 6, 10, 15, 20, 30 kV
rated power from 200 to 6300 kVA
wiring scheme Zn, ZNyn 11 or other variants based on customers
wishes
s
w
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A. Eberle GmbH was founded in 1980. The aim of the company then
was to develop and manufacture products for the electronic
industry. Since 1995 things have changed. A. Eberle GmbH &
Co. KG now has its own sales organisation with international
focus
and clearly changed priorities. Most important fields in
business comprise today: Voltage regulation of tap-changing
transformers
and transformer monitoring, Low voltage regulation of
distribution transformers, Regulation of Peterson coils and earth
fault locating .
Voltage regulation / Transformer monitoring
All measurement, control and regulation tasks of tap-changing
transformers can be executed using the new REG-DA
voltage regulator
Characteristics of the REG-DA voltage regulator:
large backlit LCD (128 x 128) with all important information
(tap-changer position,voltage, etc.)
Measuring functions (U, I, P, Q, S, cos !, I sin !, f )
Recorder functions (2-channel chart recorder)
Statistics functions (records total number of switching
operations, switching operations per tap) and event recorder
(log
book)
Transformer monitoring functions incl. recording of the hot-spot
temperature and lifetime consumption
14 (26) freely programmable binary inputs
9 (21) freely programmable binary outputs
Freely programmable analogue inputs or outputs (mA)
Pt 100 direct input for RTD temp. probe (option), Input for
tap-potentiometer (200"20k" total resistance, option)
Control of three-winding transformers
Control of phase-shifting transformers
Limit value monitoring for all measurement quantities
4 freely programmable set-point values
Parametric software WinREG for setup, programming and display as
well as for PC-based archiving and evaluation of the recorder
data
Implementation of freely programmable control tasks through
ParaGramer function for the display and automation of any
parallel connections with up to ten transformers
Regulators for Petersen coils REG-DPA
Application
The freely-programmable REG-DP regulator can be used to regulate
continuously-adjustable Petersen coils (P coils) that
are operating under load in medium and high voltage
networks.
Furthermore, all other control, measurement and recording tasks
related to Petersen coils can be carried out.
FEATURE CODING
REG-DPA resonance regulators for Petersen coils in wall
mounting, panel mounting or busbar housing, COM 2, COM 3
and a mA input channel with 16 binary inputs, 12 relay outputs
plus status output incl. WinREG parameterisation software
for parameterising, programming and visualising all regulator
data, plus connecting cables. Note: COM 2 is only freely
accessible if a log connection is not required.
Earth Fault Detection & Control
Application
To make use of the advantages of the various detection methods
in different earthfault-situations, the freely programmable
earthfault-detection-relay EOR-D makes it possible to select and
combine the following earthfault detection methods:
Transient-Method with qu-algorithm
- up to fault resistance of some kOhm
- Restriking and intermittent earthfaults
Harmonics-Method
- compare of amounts
- Direction of reactive power
Wattmetric-Method
- Direction of active power
- Increase of active current
Pulse-Method (=> location in depth)
There hardware configurations are available: EDCSys for up to 32
feeders, EORD for 4 feeders, EORD3 for one feeder.
Additional Equipment:
Local/remote interface type REG-LR connects the raise/lower
control signals from multiple sources to the tap-changer
of the transformer
Tap Position Interface Type REG-S Y9 decodes the position of a
tap changer transformer to BCD code.
Central station coupling-module type REG-P(E)(ED)
Application
Working as a coupling-device with control centres or with
central units, the REG-PE operates with all remote control
protocols.
Tap Position Interface Type REG-SK1
Function
The tap position interface REG-SK1 converts the tap position of
a contact row from a transformer with on-load tap-changer
into a BCD signal.
Position indicator interface type REG-FA
Function
The REG-FA position indicator interface adapts the tap-changer
NO contact bank signal to the REGSys voltage regulator system with
AWZ code.
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ISA has been specialising in electrical test equipment for the
power industry for 70 years, with sales representatives in 80
countries on 5 continents.
All ISA Test Instruments have three characteristics world-wide
recognised: Innovative, Rugged, User friendly.
All ISA Test and Measurement Instruments have been designed to
be used in severe environment such as high voltage substations and
heavy industry plants.
All our Test Instruments are developed, designed and constructed
to comply with the IEC, CE and the most used international
standards.
NEW!
RELTEST 1000
Is a new three phase relay test set, specially designed for
distribution network,
smart grid and renewable energy plants. Its main features
are:
Local control, via keyboard and colored display.
Remote control with the Advanced Test & Data Management
Software
Three independent AC voltage outputs adjustable from 0 to 400
V.
Fourth independent AC voltage output adjustable from 0 to 130
V.
One current output, from 0 to 15 A, switchable on 3 phase
sockets
One independent current output, adjustable from 0 to 1 A.
Optional IEC 61850-8 communication interface. The use of RELTEST
is
extremely easy: once connections are performed, the operator can
select the
desired test by a menu. Tests can be performed locally or by PC
control. Test
results are automatically saved and then downloaded in the PC
using the
software TDMS, provided with the test equipment, for final
storage and printing.
DRTS 66 - The new generation of test equipment for Protective
Relays, Energy meters, Transducers and Power Quality
meters.
This advanced secondary injection relay test system and power
system simulator is designed to satisfy all the needs
related to commissioning and maintaining substations and to
testing protection relays, energy meters, transducers and
power quality meters. Three hardware configurations are
available:
DRTS 66 with 6 Current 6 Voltage generators plus 1 battery
simulator.
DRTS 64 with 6 Current 4 Voltage generators plus 1 battery
simulator.
DRTS 34 with 3 Current 4 Voltage generators plus 1 battery
simulator.
DRTS 33 with 3 Current 3 Voltage generators plus 1 battery
simulator.
Manual control with color display.
Simultaneously available: 6 Current and 6 Voltage plus 1 battery
simulator outputs.
High current outputs : 6 x 32 A, 3 x 64 A,1 x 128 A
High power outputs: 6 x 430 VA, 3 x 860 VA, 1 x 1000 VA.
Voltage outputs: 6 x 300V at 100 VA.
High accuracy outputs: better than 0.05%.
IEC61850 protocol interface.
USB and Ethernet interface.
Pen drive interface.
End to end test with GPS or IRIG-B.
Advanced testing and data management software TDMS.
Complete library of relays from the major Manufacturers.
Highest quality, safety and reliability.
Worldwide high quality technical support in 100 Countries.
DRTS 6 Automatic Three-Phase Relay Test Set
This secondary injection relay test system and power system
simulator is designed to satisfy all the needs related to
commissioning and maintaining substations and to testing
protection devices. This powerful commissioning tool can grant
high precision accuracy (better than 0,05%) and can be connected
to additional external three phase current amplifiers.
Multi-tasking automatic protection relay test set designed for
testing protection relays, energy meters, transducers
Output: 6 x 15A ( 80 VA) , 4 x 300V ( 80 VA), 1 x 260 VDC.
High accuracy: 0,1%; 0.05% (HP).
Analog measurement inputs.
IEC61850 Protocol interface.
USB and RS232 port.
Controlled by PC laptop or local control by PDA.
Lightweight: 18 kg
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DRTS 3 PLUS- Automatic Three-Phase Relay Test Set
This power system simulator is designed to give the highest
accuracy when testing and calibrating protective relays,
energy meter, transducer and power quality devices. This
diagnostic and calibration tool is the perfect solution to
perform
automatic testing on protection devices.
Multi-tasking relay test equipment designed for testing
protection relays, energy meters, transducers.
Output: 315 A (100 VA); 4300 V (85 VA); 1260 V DC.
High accuracy: better than 0,05%.
Analog measurement inputs.
IEC61850 communication Protocol interface.
USB and RS232 port.
Controlled by PC laptop or local control by PDA.
Lightweight: 18 kg
DRTS- Automatic Three Phase Relay Test Set
This protective relay and diagnostic test system is the perfect
solution when precision and portability are requested.
Thanks to its reliability, weight and accuracy it is the good
choice to maintain and commission substation protection relay
devices.
Multi-tasking power system simulator designed for testing
protection relays, energy meters, transducers
Output: 3 x 12.5A ( 40 VA) , 3 x 125V ( 40 VA), 1 x 130 VDC.
High accuracy: 0.1 %.
Analog measurement inputs.
USB and RS232 port.
Controlled by PC laptop or local control by PDA.
Lightweight: 10 kg
BER 3- Advanced Protection Relay Test Set
This is the automatic and advanced portable analyzer system to
test protection relays and watthour meters. It allows an
accurate measurement and evaluation and its the best choice for
applications requiring a high degree of portability.
Multi-function test set designed for testing protection relays,
watt-hour meters (option)
Output: 3 x I 0 12,5 A; 3 x V 0 125 V
High accuracy: better than 0.1%
3 current and 3 voltage outputs
Transient playback and harmonics generation
End to end test of line protection
USB and RS232 port
Lightweight
T 1000 Plus - Secondary Injection Relay Test Set
This protective relay test set is designed to give the
commissioning engineers a multitasking and highly reliable
testing
tool.
Multi-tasking test set designed for testing relays and
transducers
Max current output: 250 A
Max AC voltage output: 250 V
Max DC voltage output: 350 V
Frequency generator: 15 550 Hz
Phase angle shifter
Battery simulator 20 260 V DC
Oscilloscope function for current and voltage
USB port Microprocessor controller
Test results and settings saved into local memory
TD 1000 Plus model with two current outputs and high power at 15
Hz
T 3000 - Substation Maintenance and Commissioning Test
Equipment
This primary current injection testing system is designed to
perform primary tests requested in substations commissioning.
It allows to perform different tests and measurements on current
transformers, voltage transformers, power transformers,
protection relays, energy meters and transducers.
Multi function primary test system for testing substation
equipment such as: current, voltage and power transformers, all
type of protection relays, energy meters and transducers
Primary injection testing capabilities
3000 V AC high-pot test
Generates up to 800 A (option up to 4000A with high current
booster)
Microhmmeter function (option): up to 400A DC
RS232 interface for pc connection
Possibility to store test results in T3000 local memory (up to
500 results)
Compact and lightweight: 29 kg
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T 2000 - Transformer Test Set
This portable current transformer test set allows to perform
many different measurements such as saturation, ratio and
polarity tests and CT winding resistance test. Substation
maintenance and commissioning test equipment T 2000 is
extremely appreciated by electrical engineers for its high
accuracy and portability.
Multi function system for testing: current, voltage and power
transformers
Current transformer excitation, ratio and polarity test set
Primary injection testing capabilities
3000 V AC high-pot test
Generates up to 800 A (option up to 4000A with high current
booster)
Microhmmeter function (option): up to 400A DC
RS232 interface for pc connection
Test results and settings are saved into local memory
Compact and lightweight: 26 kg
CBA 2000 - HV Circuit Breaker Analyzer and Microhmmeter
This circuit breaker diagnostic system is designed to grant the
highest accuracy while testing circuit breaker. It can
perform static and dynamic contact resistance measurement and
its a precise timing speed and motion analyzer. Circuit
breaker timing test set CBA 2000 is worldwide acknowledged as
the perfect solution when a complete and reliable
diagnostics has to be performed on circuit breakers.
Designed for the complete test of all circuit breakers
Built-in 200 A microhmmeter static and dynamic contact
resistance measurement
12 auxiliary timing inputs
Up to 4 trip/close coils control and up to 18 main and 18
resistive contact inputs
Circuit Breaker test with both sides connected to ground (BSG
option)
Digital transducer option for motion analysis
Minimum Trip Voltage Test (optional)
Stand alone functionality no PC connection is required
Analysis and result evaluation directly on the display, internal
memory for up to 500 test results and 64 pre-defined test plans
CBA 1000 - Circuit Breaker Analyzer and Microhmmeter
This circuit breaker timing test equipment is a reliable and
very accurate operating device for the maintenance and
commissioning of circuit breakers in medium and high voltage
substation. It can perform static and dynamic contact
resistance measurement and its an accurate timing speed and
motion analyzer.
Circuit Breaker timing test set suitable for EHV, HV and MV
circuit breakers
Built-in 200 A microhmmeter static and dynamic contact
resistance measurement
6 main and 6 resistive contact inputs
Up to 4 trip/close coils control
7 analog inputs and 4 auxiliary timing contact
Circuit Breaker test with two ends connected to ground (BSG
option)
Cross trigger for the synchronization of up to 4 CBA 1000
Stand alone functionality no PC connection is required
Analysis and result evaluation directly on the display
Internal memory for up to 250 test results and 64 pre-defined
test plans
USB and RS232 port
BTS 200 - Battery Test System
This testing and maintaining battery system allows to perform
measurement of battery voltage, discharging current test and
testing of battery capacity. BTS 200 can be connect with
external current measurement unit ELU 200.
High power battery capacity test system
Designed to perform discharging cycle combining efficiency with
portability
Discharging current up to 1300A with external loads
Graphical display showing test parameters, curves and
results
Internal memory
Suitable for all battery types
Possibility to use the BTS 200 in connection with up to 9
external loads ELU 200
SCAR 10 - Metal Oxide Surge Arrester Test Set
This MOV- metal oxide varistor test system is the perfect device
to perform analysis and diagnostics on metal oxide
arrestors. It is supplied with a special current clip-on
transformer designed for the measurement of current leakage.
On-line diagnostic of metal oxide surge arresters
According to IEC 60099-5 A1 Diagnostic indicators of metal-oxide
surge arresters in service
Third harmonic analysis of leakage current with compensation
Extensive field experience
Easy, fast and reliable diagnostic method
Safe lightweight equipment
Supplied with C 47-IS clip-on transformer specifically designed
to measure leakage current losses in the presence of high
electric and magnetic fields
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TDMS is a powerful software package providing data management
for acceptance and maintenance testing activities.
Electrical apparatus data and test results are saved in the TDMS
database for historical results analysis.
TDMS software organizes test data and results for the majority
of electrical apparatus tested with ISA test sets and related
software.
TDMS software controls and provides data acquisition from all
ISA Test:
DRTS 66, DRTS 6, BER 3, DRTS, DRTS 3 and ART 3
T 1000, T 2000 and T 3000
CBA 1000, CBA2000
BTS 200
TDMS software is a powerful database. It allows to create an
electrical network with substations, feeders and the majority
of electrical apparatus, such as:
Protective Relays
Instrument transformers
Power transformers
Circuit Breakers
Energy Meters
Transducers
Power Quality Meters
Ground Grids
Batteries
ISA has been specialising in electrical test equipment for the
power industry for 70 years, with sales representatives in 80
countries on 5 continents.
All ISA Test Instruments have three characteristics world-wide
recognised: Innovative, Rugged, User friendly.
All ISA Test and Measurement Instruments have been designed to
be used in severe environment such as high voltage substations and
heavy industry plants.
All our Test Instruments are developed, designed and constructed
to comply with the IEC, CE and the most used international
standards.
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ARC SUPPRESSION COILS
I Design: EGE arc suppression coils are produced and tested in
complience with the international standard IEC 289.
EGE arc suppression coil consists of several basic parts:
active part with: windings, magnetic circuit and current
transfomer
motor drive unit
tank with:
radiators (for continuous operation)
valves for oil sampling, oil filling
undercarriage
cover with a gear box and a motor
bushings
expansion tank (if required)
air breather
condition monitoring devices (thermometer,
Buchholz Relay, oil level indicator etc.)
transformer oil
Fig.4 arc suppression coil - short time duty without expansion
tank (air cushion betweentransformer oil top level and ASC
cover)
Bobina Petersen - cu timp limitat de funct. la curent de defect
Bobina Petersen - cu funct. continua la curent de defect
(cu rezervor de expansiune si radiatoare)
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Petersen coils continuous duty (standard design)
Power*) (max) k VA
Type typical dimensions
Weight (max)
kg A (height) B (width) C (length)
500 ZTC 250 2220 2160 1220 1930
1000 ASR 1.0 2400 1820 1330 2900
1600 ASR 1.6 2510 1810 1492 3800
2000 ASR 2.0 2630 2495 1505 4400
2700-2800 ASR 2.5 2730 2315 1930 4870
3600 ASR 3.2 3015 2420 2130 6000
4200 ASR 4.0 3080 1840 2460 6500
5000 ASR 5.0 3650 2680 1820 8500
6300 ASR 6.3 3810 2550 2310 10400
8000 ASR 8.0 3875 2694 2363 12600
Petersen coils short time duty 2 hours (standard design)
Power*) (max) k VA
Type
typical dimensions Weight (max)
kg A (height) B (width) C (length)
600 ZTC 250 2220 1340 1220 1990
1250 ASR 1.0 2400 1382 1390 2500
1700-2100 ASR 1.6 2510 1382 1492 3600
2100-2500 ASR 2.0 2630 1390 1505 3720
2600-2900 ASR 2.5 2730 1390 1530 4160
3500-4000 ASR 3.2 3015 1400 1600 5100
5000 ASR 4.0 3080 1426 1600 5500
6300 ASR 5.0 3650 1770 1820 7300
8000 ASR 6.3 3810 1795 1880 8990
9450 ASR 8.0 3875 1800 1965 11010
Notes: *) max. power depends on rated voltage applied on
Petersen coil
Petersen coils for 66kV and 110kV network voltage short time
duty
Network voltage 66kV Network voltage 110kV
Type Rated power Max. current Type Rated power Max. current
ASR 3.2V 3810 100 A ASR 6.3V 6350 100 A
ASR 6.3V 7621 200 A ASR 10V 12700 200 A
Petersen coils for 66kV and 110kV network voltage continuous
duty
Network voltage 66kV Network voltage 110kV
Type Rated power Max. current Type Rated power Max. current
ASR 3.2V 2860 75 A ASR 6.3V 4500 71 A
ASR 6.3V 6020 158 A ASR 10V 10800 170 A
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AUXILIARY RESISTORS SR
(FOR AUXILIARY POWER WINDING OF ARC SUPPRESSION COIL)
Use
Parallel Resistor (SR) is a part of a system intended to
increase the active current within a Petersen coil
circuit. SR is controlled by an automatic controller switching
on the resistor across the auxiliary power
winding of the Petersen Coil. The controller also simulates the
thermal picture of the resistor generating the
interlocking conditions for its switching on. In case the
resistor is not operated by the automatic controller
delivered by the company EGE, it is necessary for the operator
to observe following instructrions:
The resistor can be loaded at rated voltage and at maximum
ambient temperature of
current for maximum time stated in the table bellow (loading
time) the resistor can be switched on again only
after it has been cooled down to the ambient temperature.
To prevent the equipment in the control cabinet of the resistor
from damaging because of water
condesation, the control cabinet is equiped with a
thermostatically controlled heating element.
Design
SR is designed for outdoor applications. The housing of the
resistor is made of stainless steel ingress
protection code IP23. The control cabinet with contactors,
terminals and heating element is rated IP 54.
The cooling of the resistor is ensured by natural air
circulation inside the housing.
+40 C only with rated
-
Table 1: Technical data SR resistors for 90 sec
SR TYPE
Rated resistance at 20C[ ]
Rated current[A]
Loading time [s]
Rated voltage[V]
Dimensions
[length x width x height]
Weight[kg]
SR 70/90
7,14
70
90
500
420x700x705 41
SR 80/90
6,25
80
90
500
420x700x705 41
SR 100/90
5
100
90
500
420x700x705 43
SR 125/90
4
125
90
500
420x700x705 41
SR 160/90
3,13
160
90
500
420x700x705 52
SR 200/90
2,5
200
90
500
420x700x705 60
SR 250/90
2
250
90
500
520x700x705 68
SR 300/90
1,67
300
90
500
520x700x705 78
SR 400/90
1,25
400
90
500
520x700x705 98
SR 500/90
1
500
90
500
520x700x705 110
Table 2: Technical data - SR resistors for 6 sec
SR TYPE
Rated resistance at 20C[ ]
Rated current[A]
Loading time [s]
Rated voltage[V]
Dimensions
[length x width x height]
Weight[kg]
SR 3000/6
0,166 3000
6
500
420x700x705 74
SR 2500/6
0,2
2500
6
500
420x700x705 65
SR 2000/6
0,25
2000
6
500
420x700x705 65
SR 1500/6
0,33
1500
6
500
420x700x705 52
SR 1000/6
0,5
1000
6
500
420x700x705 46
SR 750/6
0,666 750 6 500 420x700x705 37
SR 500/6
1
500
6
500
420x700x705 33
SR 250/6
2
250
6
500
420x700x705 30
Table 3: Parameters of the auxiliary power winding of EGEs
Petersen coils
Petersen coil type
ZTC50
ZTC250
ASR1.0
ASR1.6
ASR2.0
ASR2.5
ASR3.2
ASR4.0
ASR5.0
ASR6.3
Rated voltage U
M2-N2 10%
500 V
Rated current I
10% / 6s
250
500
1000
1600
2000
2500
3000
3000
3500
4000
Rated current I
10% / 90s
40
160
250
400
500
630
800
800
1250
1600
-
NEUTRAL POINT RESISTORS FOR
22kV ELECTRICAL NETWORK
Terminology
Neutral Point Resistor (NER) is intended to connect the
transformer neutral point to earth. Intermittent loading
means a loading of a shorter period than it is needed for the
temperature stabilization and at the same time
the no-load periods are long enough for the resistor to cool
down to the ambient temperature.
Use
NER is used to connect the transformer neutral point to earth
within HV power supply networks, which are
operated as resistance-grounded networks. The purpose of the
resistance-grounded neutral point is to
suppress overvoltages at earthfaults as well as to provide
sufficient current needed to activate protective
relays, ensuring a quick disconnection of the faulty section of
the power supply network. The power supply
networks with resistance-grounded neutral point are supposed to
be used in cable networks of big
industrial centres. NER is designed for intermittent load. There
are also resistors by which the permanet
current is stated, in this case the resistor could be loaded
with this current continuosly.
Design
NER is designed for outdoor applications. It consists of a
housing made of galvanized steel plate. In this
housing there are resistive elements arranged vertically one
above the other in blocks. The blocks of resistive
elements are separated by insulators attached to the sides of
the housing. The cooling of the resistor is
ensured by natural air circulating inside the housing. The air
holes are placed on the front and the back
side of the housing.
The input bushing for connection of the resistor to the
transformer neutral point is placed on the roof of the
housing and it is labeled D1. The output bushing for connection
to the grounding system of the transformer
station is placed in the bottom side of the housing and it is
labeled D2. Inside the housing there are installed
-
two current transformers providing curent signals for protection
relays. Measuring current transformer T1
is intended for over-current protection and measuring
transformer T2 is assigned to be connected to the
frame-leakage protection. At the bottom side of the housing
there are two cable glands for the current
transformers connection. For the proper functionality of the
frame-leakage protection it is necessary to isolate
the housing of the resistor from earth (e.g. paperboard,
fibreglass boards insulation etc.). The anchor bolts
must be screwed using insulating washers. The insulation
resistance between the housing and earth should
be at least 10 .
Type
NER 300/22 NER
300/30/22 NER
450/22,5/22 NER
600/30/22 NER
1000/50/22 Electrical network
voltage[kV]
22
22
22
22
22
Rated voltage [kV]
13,3 13,3 13,3 13,3 13,3
Rated current [A]
300 300 450 600 1000
Loading period [s]
6 6 6 6 6
Continuous current [A]
0 30 22,5 30 50
Rated resistace
[]
44,3 10%
44,3 10%
29,5 10%
22,1 10%
13,3 10%
Rated frequency
[Hz]
50
50
50
50
50
Current transformer
T1
300/5 A, 30VA, 1FS5
300/5 A, 30VA, 1FS5
400/5 A, 30VA, 1FS5
600/5 A, 30VA, 1FS5
1000/5 A, 30VA, 1FS5
Current transformer
T2
100/1 A, 15VA, 1FS5
100/1 A, 15VA, 1FS5
100/1 A, 15VA, 1FS5
100/1 A, 15VA, 1FS5
100/1 A, 15VA, 1FS5
Ingress protection
IP 23 IP 23 IP 23 IP 23 IP 23
Cooling AN AN AN AN AN
Type
NER 300/22 NER
300/30/22 NER
450/22,5/22 NER
600/30/22 NER
1000/50/22
A [mm] 1400 1450 1370 1450 1410
B[mm] 1320 1450 1430 1450 1430
C [mm] 1770 2170 2560 2170 2950
D [mm] 1150 1150 1000 1150 1040
E [mm] 900 900 900 900 900
F [mm] 1180 1190 1040 1190 1080
G [mm] 1140 1140 1140 1140 1140
H [mm] 400 380 380 380 380
I M16 M16 M16 M16 M16
J M12 M12 M12 M12 M12
Weight [kg] 356 480 540 465 645
-
SRA 2250/6 RESISTOR ARS-01 RESISTOR AUTOMATICS
SRA 2250/6 Resistor specification
The SRA 2250/6 Resistor is intended to increase the active
component of residual current passing through the point of a ground
fault. The device is designed for connection to the secondary
winding of an arc-suppression coil. The system of the resistor's
automatics makes it possible to fit the resistance of the device to
the character of the earth fault and thus enhance reliability
sensitivity of ground-fault protection relays.
The ARS-01 Automatics is designed to control the SRA Resistor,
namely to connect it to / disconnect from the winding of the
arc-suppression coil while the network is experiencing the ground
fault. The automatics matches the resistance of the device to the
character of the earth fault and monitors thermal loading of the
resistor. When used together with the ARS Automatics, the SRA
Resistor offers the optimal value of resistance being connected and
improves the reliability sensitivity of ground-fault protection
relays also to high-ohmic faults.
Description of the resistor
The SRA 2250/6 Resistor has a cabinet consisting of two parts:
(1) an IP 23 enclosure housing the resistors themselves and (2) an
IP 54 control unit. The resistor enclosure contains air-cooled
resistive elements while the control unit houses the input terminal
block; contactors; heating resistor; thermostat and the automatics
proper. Both the resistor enclosure and the control unit casing are
made of a stainless steel sheet.
-
Technical parameters of SRA 2250/06
Type
SRA 2250/6
Rated resistance [ ]
from 0.22 to 6
Rated voltage [V]
500V
Rated current [A]
2250
Loading time [s]
6
Weight [kg]
83
Cross-section of connecting cable [mm2, Cu)
95
Control voltage of contactors
230 V / 50 Hz
ARS-01 Automatics - Principle functions
The ARS-01 Automatics can operate in two modes offering
different functions, where a specific mode is selected
parametrically.
Mode of SR resistors control: Responding to a ground fault
experienced by the system, the automatics will connect the resistor
to the auxiliary power winding of the arc-suppression coil so that
the active component of the coil current is increased and the
performance of the ground-fault protections is improved. The Uo
voltage will be monitored all the time, and with the ground-fault
setpoint of the voltage exceeded, the device will first wait for
the preset "time of R connection delay" and then connect the
resistor to the auxiliary power winding of the coil for the preset
"time of R connection". Provided the "number of connection cycles
repeated" is set at a figure different from zero, the device will
first wait for the "time of repeated R connection delay" and then
it will connect the R resistor once again.
Mode of SRA resistors control: The proper resistance to be
connected is determined in accordance with (1) the voltages
measured across the auxiliary power winding of the arc- suppression
coil (0 to 500 V) and (2) the loading current passing through the
winding when the testing resistor is connected to the coil while
the ground fault is being experienced. The resistance is built by a
suitable series-parallel combination of the resistive elements of
the SRA Resistor connected to the power winding of the
arc-suppression coil. In case the ground-fault protections fail to
extend signals proving they tripped as expected, the resistance
adjusted as described above can be connected repeatedly. In that
way the active component of the fault current will be increased to
the optimal level, without causing inadvertent drop in voltage
below the level required to trip the protections - consequently,
the system will provide greater reliability in detecting even the
high-resistance faults.
To protect the resistor from overloading possibly caused by
constant metering of current flowing through the device, the
automatics will calculate the expected temperature rise using an
implemented model of temperature buildup. With the thermal capacity
of the resistor used up to the full, the automatics will prevent
the resistor from being connected, or it will even disconnect the
resistor when already connected. The resistor will remain safely
disconnected until its temperature drops to approx. 80% of its
overall thermal capacity.
The automated diagnostics system will measure the current
passing through the resistor and the Uo voltage developed across
the device whenever the resistor is connected. Using the two values
the diagnostics will calculate the actual resistance of the device,
a piece of information then employed to monitor aging of the
resistive material and integrity of the resistive route.
-
3-PHASE SHUNT REACTORS - TKFC
TKFC 3-phase shunt reactors are used to compensate the reactive
power.
With the development of renewable electric power sources the
compensation of reactive power gains more significance.
TKFC - 3-phase shunt reactors are designed for the fixed value
of the reactive power.
Typical parameters of the TKFC reactors are: - networks of 6,
10, 15, 20, 35 kV - power up to 5000 kVA - connection group Y or
YN
Typical TKFC reactors are placed in a corrugated wall tank and
are hermetically sealed or equipped with an expansion tank and the
air breather.
Fig.1 TKFC 3-phase shunt reactor 500kVA - corrugated tank
hermetically sealed
Smaller corrugated wall tanks are hot dip galvanized and painted
(if required). Typical colour shade is RAL 7033. Larger tanks are
provided with zinc paint. The expansion tank is normally equipped
with an oil level gauge.
Alternatively larger TKFC shunt reactors are placed in a
corrugated tank or a tank equipped with radiators and with an
expansion tank and an air drier. Radiators are hot dip galvanized
and painted, the tanks are provided with a zinc layer using spray
zinc metallizing method.
The expansion tank is equipped with an oil level gauge.
Fig.2 TKFC 3-phase shunt reactor corrugated tank with an
expansion tank and an air drier
Bushings are of various types: porcelain DIN or EN bushings,
Euromold or Connex cable connectors.
The reactor oil temperature is monitored by a thermometer.
Typical transformer oil used in TKFC shunt reactors is Shell
Diala S2 ZU-I
Lugs determined for lifting the complete reactors are placed on
the cover or on tank walls under the cover.
The shunt reactors are equipped with an oil drain valve placed
at the bottom of the reactor.
If required the shunt reactors can be equipped with
bi-directional wheels.
-
EARTHING TRANSFORMERS - ETR
ETR earthing transformers are used to create an artificial
neutral in distribution electric networks:
Fig.1 earthing transfomer in an electric distribution
network
Typical parameters of ETR earthing transformers are: - networks
of 6, 10, 15, 20, 35 kV - rated power from 200 to 5000 kVA -
connection group Zn, ZNyn 11 or other
variants based on customers wishes
Typical ETR earthing transformers are placed in a corrugated
wall tank and are hermetically sealed. Smaller corrugated wall
tanks are hot dip galvanized and painted (if required). Typical
colour shade is RAL 7033. Larger tanks are painted with zinc
paint.
Fig.2 ETR earthing transfomer hermetically sealed
Alternatively larger ETR earthing transformers can be placed in
a tank equipped with DIN radiators, an expansion tank and an air
breather.
Radiators are hot dip galvanized and painted, the tanks are
provided with a zinc layer using spray zinc metallizing method.
The expansion tank is equipped with an oil level gauge.
Fig.3 ETR earthing transfomer tank with radiators
Bushings are of various types: porcelain DIN or EN bushings,
Euromold or Connex cable connectors.
The transfomer oil temperature is monitored by a
thermometer.
Typical transformer oil used in ETR earthing transformers is
Shell Diala S2.
Lugs determined for lifting the complete transformer are placed
on the cover or on tank walls under the cover (larger earthing
transformers).
ZNyn earthing transformers are equipped with an off-load tap
changer purchased from one of the most prestigious companies.
ETR earthing transformers are equipped with an oil drain valve
placed at the bottom of a transformer.
If required the transformers can be equipped with bi-directional
wheels.
-
Table.1 examples of ETR earthing transformers: - ZN connection
group - continuous operation duty - corrugated tank - hermetic
design
RATED POWER
L - length
W- width
H - height
YPE [V] [mm] [mm] [mm]
Netw
ork
rate
d v
olt
ag
e
10,1
1 k
V
ETR0200 200 1350 770 1200
ETR0315 315 1360 770 1400
ETR0500 500 1500 950 1550
ETR0800 800 1900 1300 1550
ETR1000 1250 2000 1300 1700
ETR2500 2500 2000 1300 1900
ETR4200 4200 2335 1320 2100
-
Advantages:
Multi-functional voltage regulator
Integrated measurement transducer and recorder functions
Integrated "statistical unit" for the recording and assessment
of operating data
Integrated logic (ParaGramer) for determining transformers
operating in parallel
Various programs for transformers operated in parallel
Adoption of all tasks with respect to transformers
Integrated transformer monitoring used to determine the hot spot
temperature and the remaining service life of the transformer.
The regulator can also control fan groups and oil pumps to
minimise the hot spot temperature and thus the lifetime consumption
of the transformer.
Another essential feature of the voltage regulators is the
possibility to implement special functions via customer-
specific programs without interfering with the firmware of the
regulator. The programs can be created online using a
simple editing tool. All necessary program elements, incl. help
texts and sample program lines, are included with
every regulator. The digital voltage regulators REG-D/REG-DA can
be integrated into control system applications via
all common profiles.
VOLTAGE REGULATOR REG-DA
-
Voltage Regulator REG-DA
Application All measurement, control and regulation tasks of
tap-changing transformers can be executed using the new REG-DA
voltage regulator.
The REG-DA regulator features a world innovation as it is
equipped with a high-capacity transformer monitoring function in
accordance with CEI IEC 354 (VDE 0536). This function allows the
operator to call up information about the hot-spot temperature and
the lifetime consumption of the transformer at any time. If
required, the regulator can even activate up to six cooling levels.
The oil temperature can either be recorded directly (PT 100) or via
a mA input.
Apart from its basic function, every REG-DA voltage regulator
can be used as a measurement transducer, recorder, statistical
unit, paragramer and transformer monitor all at the same time. All
important network measurement quantities are displayed in
measurement transducer mode. The trends in the voltage that is to
be regulated over time and a second, selectable, measurement
quantity are shown in recorder mode. The statistical unit for the
tap-change position offers a clear presentation of all switching
operations of the tap changer. The paragramer provides a complete
busbar simulation.
Interconnection of multiple voltage regulators on a network
enables the mutual exchange of data between regulators over long
distances.Various communications methods can be used to transfer
data.This allows monitoring of multiple transformers from a
centralised control centre. Parallel connection of several
transfomers can be very easily implemented this way.
Application-specific tasks can be implemented via freely
programmable inputs and outputs. The REG-DA regulator is able to
communicate with a control centre via all common scada
protocols.
Characteristics of the REG-DA voltage regulator large backlit
LCD (128 x 128) with all important information (tap-changer
position, voltage, etc.) Measuring functions (U, I, P, Q, S, cos !,
!, I sin !, f ) Recorder functions (2-channel chart recorder)
Statistics functions (records total number of switching operations,
switching operations per tap) Event recorder (log book) Transformer
monitoring functions incl. recording of the hot-spot temperature
and lifetime consumption 14 (26) freely programmable binary inputs
9 (21) freely programmable binary outputs Freely programmable
analogue inputs or outputs (mA) Pt 100 direct input for RTD temp.
probe (option) Input for tap-potentiometer (200"...20k" total
resistance, option) Control of three-winding transformers Control
of phase-shifting transformers Limit value monitoring for all
measurement quantities 4 freely programmable set-point values
Programmable rated values of U and I Parametric software WinREG for
setup, programming and display as well as for PC-based archiving
and evaluation of the recorder data Simulation software REGSimTM
for the simulation of any parallel operation, network and load
situations Implementation of freely programmable control tasks
through Peripheral bus RS 485 (COM3) for additional interface
modules (ANA-D, BIN-D) ParaGramer function for the display and
automation of any parallel connections with up to ten transformers
UL-certification
-
REGULATORS FOR PETERSEN COILS
REG-DP(A) - AEBERLE GERMANIA
Application
In medium-
and high voltage networks, the free programmable
regulator REG-DP is used for the automatic control of
Petersen-coils ( P-coils ), which are continuously
adjustable
on load. Furthermore, the controller can solve a lot of
control-,
measuring-
and recording tasks all around the Petersencoil.
Control methods
As a standard feature, the regulator offers different
methods
for the automatic control of a Petersen-coil. Depending on
the requirements, the REG-DP can control either to a
percentage
or absolute detuning-current or a given zero-sequence-
voltage. It is remarkable,
that during a ground-fault,
the Petersen-coil can be corrected by the detuning
and adjusted
to the resonance point. Furthermore, there are different
methods available for the control of several Petersencoils
in the same network.
Resistor control
Included as an independent functional unit there is a
resistor-
control for the "increase of the residual ohmic current",
which can be freely parameterised and which contains even
a thermal model.
Recording of the Zero-Sequence-Voltage
An integrated electronic recorder continuously stores the
time history of the zero-sequence-voltage and the coil-position.
The chart-time lines can be shown and evaluated either
on the display of the controller or on a PC. This
integrated
net spy enables to record and monitor long-term alterations
of the zero-sequence voltage. The parameterisation-software
WinREG can be used to evaluate and archive the recorded
data.
Connection to the SCADA system and REGSys
The controller REG-DP is part of the control system REGSys
and therefore it can be easily connected to the voltage
regulator
REG-D or to the multi-transducer MMU-D. An essential
attribute of REGSys is, that all components, which
are connected
by the system-bus E-LAN, can be parameterised or
connected to the supervisory control and data
acquisition
system ( SCADA ) over only one interface. For this reason,
the measured values and parameters of all connected devices
are available to the SCADA system and can be read
out or modified there. Gateways according
IEC 60870-5-
103 (VDEW) and IEC 60870-5-101 (balanced or unbalanced
mode) are available.
-
Regulator Mode
Control of the detuning
A change in the switching condition of the network is
recognised because of the change of the zero-sequence-
voltage. Considering adjustable restrictions, the controller
guides the P-coil to the pre-set detuning.
On the display, beside the status of the controller, the
following data are shown:
actual coil position
actual zero-sequence-voltage
actual detuning
residual resistive current of the net over the fault point
resonance curve and their parameters
The monitoring of the switching-condition is made by evalu-
ating the zero-sequence-voltage in the complex plain.
Voltage control
The controller continuously compares the actual value and
a specified value of the zero-sequence-voltage. The manipu-
lating variable for the tuning of the Petersen-coil is
derived
from this comparison.
Adjusting the P-coil during the ground-fault
The controller can be parameterised in a way, that the coil-
position is corrected by the compensation value during a
ground-fault. Additional corrections can be activated via
the
binary inputs.
Methods for Petersen-coils, working in parallel
To control P-coils, which are connected in parallel, several
methods are offered. If the controllers e.g. are connected
over the E-LAN, the actual position value of the second coil
can be considered as fixed coil. It is even possible to
adjust
the fixed
coil, if the regulating range of the master con-
troller is not sufficient.
Special requirements of the 110kV-network
Additional parameters of the high-voltage distribution net-
work can be considered, e.g. a maximum permanent zero-
sequence-voltage.
Recorder
Mode
The
time
history
of
the
zero-sequence
voltage
Vo
is
presented
on
the
display
as
a
line
diagram.
The
time
base
(
rate
of
feed ) for the display can be adjusted. The recorded data
and the assigned time can be retrieved to the display via
function
keys
or
to
a
PC.
In addition, substantial events are recorded (with date and
hour)
in
an
event
recorder
and
can
be
retrieved
via
a
PC.
Statistics
Mode
In the statistics mode the most important total-timers and
counters are shown. Using these data it can be checked
how
many tunings occurred in a given period resp. how
many
have
been
completed
successfully.
Furthermore,
it
can
be
seen
for
how
many
tuning
operations
the
adjusting
range
of
the
P-coil
was
not
sufficient.
The statistics mode even records the number of the ground-
faults, which occurred and the number of the "increase of
the
residual
ohmic
current".
-
rela
ys
bina
ry in
put
s
Resistor control
The independent and free programmable resistor control
makes it possible to connect a resistor for the increase of
the residual ohmic current in the case of a ground fault
automatically. To supervise the load of the resistor, a
ther-
mal model is used, which considers the actual zero-
sequence-voltage during the connection. At overtemperature
the switch in of the resistor is blocked. The display shows
the possible remaining resistor connections until the
temperature limit is reached.
The repeated connection by transient ground faults can be
avoided.
The manual release of the resistor connection can be done
via a binary input as well as via SCADA
Parametrization
The assignment of the parameters of the controller is menu-
driven and very simple .
REG-DP
SCADA, serial
R_auto_on
R_auto_off
R_block
R_start
+Va
SCADA
The setting into operation of the controller and the
adjustment
to the Petersen-coil (e.g. linearization of the coil-position)
is
largely automated. The reactions of the process are perma-
nent monitored and checked according their plausibility.
Errors are analysed and shown in the status line. An
additio-
nal-menu offers more detailed information and tips for the
trouble-shooting.
-Va
R_auto_on
+Va
R_block
-Va
L
R_on
N
Resistor
Resistor on
fig. 2 Example for application of the resistor control
-
EARTHFAULT DETECTION RELAY EOR-D
Application To make use of the advantages of the various
detection methods in different earthfault-situations, the freely
programmable earthfault-detection-relay EOR-D makes it possible to
select and combine the following earthfault detection methods:
Transient-Method with qu-algorithm - up to fault resistance of
some kOhm - Restriking and intermittent earthfaults
Harmonics-Method - compare of amounts - Direction of reactive
power
Wattmetric-Method - Direction of active power - Increase of
active current
Pulse-Method (=> location in depth)
The basic unit has been designed for the suprvision of up to 4
feeders; a 19rack can be equipped with up to 4 relays. Therefore at
present up to 16 feeders can be monitored using one 19reck.
-
COMBINED EARTH FAULT AND SHORT
CIRCUITINDICATOR EOR-3D
Application The EOR-3D combines earth fault and short circuit
detection in a compact device. In particular, the ad-vantages of
different locating methods can be combined. For the first time,
prioritization and thus weighting of the locating procedure is
possible. The device is designed for the detection of a single
dis-charge. By combining the methods, it is particularly suitable
for substations. Of course, the advantages of these methods can
also be used directly in the trans-former station.
Location method for use in compensated networks : Transient
earth fault detection using the qu2 and qui algorithms for single
faults intermittent faults (qui) faults in loops with large
circulating currents (qu2) Active power direction and cos( ),
suitable trans-ducers required Harmonics method with measurement of
the associated reactive power direction for a freely se-lectable
frequency Pulse location: traditional and using the new high
power-current injection method (HPCI). With the EOR-3D,
overcompensation is no longer manda-tory Directional short-circuit
indicator Non-directional short-circuit indicator with
con-figurable reset time
Location method for use in isolated networks : Transient earth
fault detection using the qu2 and qui algorithms for single faults
restriking faults (qui) faults in loops with large circulating
currents (qu2) Reactive power direction and sin( ) method
Directional short-circuit indicator Non-directional short-circuit
indicator with con-figurable reset time
-
1. DESIGN AND MANUFACTURING OF PROTECTION CUBICLES
The design of the protection and automation cubicles is made
based on technical solutions defined
by the general contractor and it covers all the aspects of the
execution. The technical solutions
are discussed and agreed since the contracting phase thereby the
customer's satisfaction for the final
product is guaranteed.
All our projects are realized in AUTOCAD and EPLAN Software
All our cubicles are tested in the factory and additionally to
the standard tests further tests can be
done. For the protection and automation cubicles can be made
specific tests to verify the functionality
of the systems. For this purpose ENEROPTIM provides necessary
space for the tests, specialized
personnel and equipments for testing the protective relays. The
content of the tests is agreed with the
final customer of the project.
Specialized products for power plant and electrical
substations:
Protection and automation cubicles
AC and DC distribution cubicles for internal services
Marshalling Kiosks and connection boxes
REFERENCES:
Design and commissioning for protection systems in Morocco - the
400/220 kV substations from
Mediouna, Melloussa, Oualili and Bourdim (subcontractor for
AREVA);
Design and commissioning of DASf systems for 36 substations of
TRANSELECTRIA;
Design and commissioning of 110/20 kV Filesti, 110/6 kV Arpechim
Pitesti, 110/6 kV Oltchim
substations;
220/110/20 kV Arefu substation;
Municipal Hospital Sibiu 20kV substation ;
AC/DC panels for the Sibiu Airport substation - 110kV;
Protection cubicles for 400/110 kV Domnesti substation;
110 kV line and transformer protections for EON Moldova;
Design of the protection and control systems for Brasov Centru
substation - Electrica
Transilvania Sud;
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Design and commissioning of the Petersen Coil control and earth
fault detection systems for ENEL
Timisoara, CEZ, ELECTRICA TRANSILVANIA SUD, ELECTRICA
TRANSILVANIA NORD,
ELECTRICA MUNTENIA NORD, TRANSELECTRICA;
Commissioning of the automatic voltage regulation for power
transformers AVR CEZ,
ELECTRICA TRANSILVANIA SUD, ELECTRICA TRANSILVANIA NORD, ENEL
GREEN POWER,
EON MOLDOVA;
Design of the teleprotetcion installation for CET Timisoara.
Protection & control cubicles GEORGIA - DIDUBE (with Alstom
equipment) 20 pcs;
Protection & control cubicles GRECIA -150kV Trianoupolis,
Aiginio, Pirgos - (with EFACEC
equipment) 18 pcs;
Protection & control cubicles for 150 kV KORINTHOS Grecia
(with Alstom equipment) 11 pcs;
Protection & control cubicles Thisvi Grecia (with Alstom
equipment) 20 pcs;
Protection & control cubicles for 11 Transelectrica s/s
(with ALSTOM equipment) 300 pcs;
Protection & control cubicles for 14 substations (Ungheni,
Vega, Mostistea, Baru Mare, Tg Jiu,
etc) with SIEMENS equipment;
Protection & control cubicles for Stupina, Topolog, Targusor
1, Targusor 3, Moldova Noua -
ENEL GREEN POWER substations (with SIEMENS equipment);
Protection & control cubicles for Almaj, Jiblea, Banovita,
Turburea, Cauciuc - CEZ substations
(with SIEMENS equipment);
Protection & control cubicles for Rompetrol Rominserv (with
SIEMENS equipment) 10 pcs;
Protection & control cubicles for Targu Jiu substation (with
Alstom equipment) 22 pcs;
Protection & control cubicles for Brazi Vest substation 23
pcs;
Protection & control cubicles for CFR (with Alstom
equipment) 24 pcs;
Protection & control cubicles for OSTROV substation (with
Siemens equipment) 17 pcs;
Protection & control cubicles for Vutcani substation (with
Siemens equipment) 11 pcs;
Protection & control cubicles for Movila Vulpii substation
(with ABB equipment) 8 pcs;
Protection & control cubicles for Cernavoda substation (with
Siemens equipment) 16 pcs;
AC/DC panels for 400kV Iernut substation Vatech
Transelectrica;
AC/DC panels and protection and control cubicles for 110kV Sibiu
Airport Electrica;
Busbar protection for 110kV Domnesti substation;
Protection & control cubicles for 110kV Arad substation;
110 KV OHL and TRAFO protection cubicles for EON Moldova 19
pcs;
Protection & control cubicles for Brasov Centru substation
15 pcs;
Axa 400kV - Transelectrica (Bacau, Roman, and Suceava
substations - 54 cubicles;
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2.COMMISSIONING:
We provide qualified personnel for configuring and testing of a
wide range of protective relays and
automations : SIEMENS, ABB, ALSTOM, ZIV, MICROELETTRICA,
THYTRONIC, EFACEC, A-
EBERLE, EATON, using modern testing equipments (triphased
injection test sets, primary currents
test sets and so on), following the procedures imposed by the
manufacturers, but also the
requirements of the customers.
Our portfolio comprises:
Commissioning and testing of protection relays:
RELAY TYPE
IEEE NO
Distance relay 21
Synchronizing device 25
Under/over-voltage relay 27/59
Directional Power relay 32
Field relay 40
Reverse phase current relay 46
Phase sequence voltage relay 47
Incomplete sequence relay 48
Instantaneous over-current relay 50
Inverse time over-current relay 51
Power factor relay 55
Voltage balance relay 60
Ground detector relay 64
Directional over-current relay 67
Phase angle out of step relay 78
Automatic reclosing relay 79
Frequency relay 81
Pilot wire receiver relay 85
Lockout relay 86
Differential protection relay 87
Voltage directional relay 91
Power directional relay 92
Tripping relay 94
Commissioning and testing of automations: Automatic voltage
regulation AVR, Automatic adjustment
of Petersen Coils ASC, AAR;
Assistance on fitting and commissioning of the protection and
command / control equipments
for the electrical sub-stations and power plants.
TC and TT testing.
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References:
Commissioning for the protection systems at the 220kV
substations in Algeria (subcontractor of
ABB Italy);
Commissioning for the protection systems at the 400/220kV
Mediouna, Melloussa, Oualili and
Bourdim substations - Morocco (subcontractor of AREVA);
Commissioning for the motor protection relays in Qatar
(subcontractor of SCHNEIDER
ELECTRIC);
Commissioning for the transformer differential protection in
Egypt (subcontractor of ANSALDO
group);
Commissioning for the protection systems for 28 substations in
Etiopia (subcontractor of
AREVA);
Commissioning of the 220 kV protection systems in Algeria
(subcontractor of AREVA T&D
France);
Commissioning of the 110kV protection systems ABB for EON
Moldova: Ciritei, Izvoare,
Trusesti, Stejaru, Laminor, Piatra Neamt Centru, Dumbrava
substations; CHE Cornetu, CHE Robesti;
Commissioning of the 200kV protection systems Prundu,
Topoloveni;
Commissioning of ABB relays for 20 KV protection - EON Moldova
126 pcs;
Commissioning of ALSTOM relays for implementation of a DASf
system - Transelectrica
substations 57 relays;
Distance protection - EON Moldova (subcontractor of AREVA);
Differential protection - CET Vest Bucuresti;
Protection systems 110 kV Filesti, 110 kV Cluj Centru, 110 kV
Baia Mare Est, 110 kV Salaj (Alstom
relays);
Generator and distance protections - CHE Rusanesti;
Protection systems 110/6 kV Butimanu (Microelettrica Scientifica
and Alstom relays).
Protection systems for 220/110/20kV Aref;
Protection systems for 110/6kV Oltchim;
Commissioning of automatic voltage regulators Petromidia, BEPCO
Brasov, PETROM, Wind
Farms: Gemenele, Corni, Moldova Noua, Cogealac, Fantanele,
Silistea, Dorobantu, Baia, Topolog,
Targusor, Stupina, Valea Nucarilor; CEZ: Horezu, Campulung,
Baltagesti, Cetate, Cauciuc, Corabia,
Rosiuta, Silistea, Lupoaia, Coteana , Turburea, Banovita, Almaj,
Jible; EON Moldova: Solca, Delphi,
Poiana Teiului, Izvoare, Siscani, Tg Ocna, Moinesti, Siret,
Camupung, Vicov, Saveni, Dorohoi,
Darabani, Trusesti, Bucecea, Podu Iloaiei, Regie, Breazu,
Pascani, Balcescu; ELECTRICA: Jucu,
Manastirea, Viisoara, Sf Gheorghe, Aninoasa, Moreni, Poiana
BV
Commissioning for automation adjustment of Petersen colis and
earth fault detection systems
CEZ: Gradiste, Pitesti, DIF Craiova, Carbunesti, Pojaru,
Insuratei, Bujoru, Filiasi, Ghercesti, Preajba,
Traianu, Breasta; ENEL: Popesti Leordeni, Fetesti; ELECTRICA: Sf
Gheorghe, Jucu, Manastirea,
Aninoasa; EON Murgeni, TRANSELECTRICA Sibiu, FAI;
MAPAPG1.pdf
