Product description - NETI3187046.la01.neti.ee/ and... · Product Description ... The advantages of GE’s PurePulse™ technology span from savings in the sizing of upfront ... PurePulse™

GE Consumer & Industrial Power Protection

Product Description Digital Energy™ Uninterruptible Power Supply SG-CE Series 160–200–250–300 kVA SG-CE Series 160–200–250–300 kVA PurePulseTM 400 Vac CE – Series 1

SGSE_160-200_S1_UPS_01

SGSE_250-300_S1_UPS_01

SG-CE Series 160 - 200 kVA SG-CE Series 250 - 300 kVA GE Consumer & Industrial SA General Electric Company CH – 6595 Riazzino (Locarno) Switzerland T +41 (0)91 / 850 51 51 F +41 (0)91 / 850 51 44

www.gedigitalenergy.com

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Modifications reserved Page 2/26 PRD_SGS_XCE_M16_M30_1GB_V010.doc Product description SG-CE Series 160-300 kVA / S1 / 400Vac CE

Model: SG-CE Series 160 – 200 – 250 – 300 kVA / Series 1 SG-CE Series 160 – 200 – 250 – 300 kVA PurePulseTM / Series 1

Date of issue: 15.02.2007

File name: PRD_SGS_XCE_M16_M30_1GB_V010.doc

Revision: 1.0

Up-dating

Revision Concerns Date

COPYRIGHT © 2007 by GE Consumer & Industrial

Data subject to change without prior notice. All brands and product names are Trademarks or Registered Trademarks of their respective owners. Reproduction only upon written consent by GE.


Table of contents Page 1 INTRODUCTION ................................................................................................................................................................4 2 STANDARDS.......................................................................................................................................................................9

2.1 CE CONFORMITY.......................................................................................................................................................................................................... 9 2.2 STANDARDS................................................................................................................................................................................................................... 9 2.3 UPS CLASSIFICATION................................................................................................................................................................................................. 9

3 MAIN UPS ELEMENTS .....................................................................................................................................................10 3.1 CONTROL SYSTEM.................................................................................................................................................................................................... 10 3.2 RECTIFIER..................................................................................................................................................................................................................... 11 3.3 INVERTER ..................................................................................................................................................................................................................... 12 3.4 AUTOMATIC BYPASS ............................................................................................................................................................................................... 12 3.5 MANUAL BYPASS...................................................................................................................................................................................................... 13 3.6 BATTERY ....................................................................................................................................................................................................................... 13

4 OPERATION MODES .......................................................................................................................................................14 4.1 NORMAL OPERATION MODE VFI (VOLTAGE FREQUENCY INDEPENDENT) ....................................................................................... 14 4.2 SEM MODE OPERATION (SUPER ECO MODE) ................................................................................................................................................ 14 4.3 MAINS FAILURE OPERATION................................................................................................................................................................................ 14 4.4 MAINS RECOVERY OPERATION........................................................................................................................................................................... 15 4.5 AUTOMATIC BYPASS ............................................................................................................................................................................................... 15 4.6 MANUAL BYPASS...................................................................................................................................................................................................... 15 4.7 FREQUENCY CONVERTER ..................................................................................................................................................................................... 15

5 REDUNDANT PARALLEL ARCHITECTURE (RPA)..........................................................................................................16 5.1 PARALLEL SYSTEM OPERATION.......................................................................................................................................................................... 16

5.1.1 Introduction to the parallel system ................................................................................................................................................. 16 5.1.2 Features of RPA parallel system ....................................................................................................................................................... 17 5.1.3 System control.......................................................................................................................................................................................... 17 5.1.4 Synchronization........................................................................................................................................................................................ 17 5.1.5 Load sharing .............................................................................................................................................................................................. 17

5.2 RPA OPERATION MODES ....................................................................................................................................................................................... 18 5.2.1 Normal operation mode ....................................................................................................................................................................... 18 5.2.2 Battery mode............................................................................................................................................................................................. 18 5.2.3 Rectifier failure .......................................................................................................................................................................................... 18 5.2.4 Inverter disturbance............................................................................................................................................................................... 19 5.2.5 Bypass mode............................................................................................................................................................................................. 19 5.2.6 Maintenance bypass mode ................................................................................................................................................................ 19

6 DIMENSIONS....................................................................................................................................................................20 6.1 SG-CE Series 160 & 200 KVA ............................................................................................................................................................................... 20 6.2 SG-CE Series 250 & 300 KVA ............................................................................................................................................................................... 20

7 INTEGRATION WITH POWER QUALITY SYSTEMS.......................................................................................................21 8 INTEGRATION IN BULDING MANAGEMENT SYSTEM.................................................................................................21 9 CONTROL PANEL ............................................................................................................................................................22 10 CONNECTIVITY ................................................................................................................................................................23 11 OPTIONS...........................................................................................................................................................................24

11.1 RPA CONFIGURATION KIT..................................................................................................................................................................................... 24 11.2 RECTIFIER/BYPASS/UPS INPUT TRANSFORMER .......................................................................................................................................... 24 11.3 VOLTAGE ADAPTATION TRANSFORMERS....................................................................................................................................................... 24 11.4 EMC CATEGORY C2 (CLASS A) ............................................................................................................................................................................. 24 11.5 TOP ENTRY CABLES ................................................................................................................................................................................................. 24 11.6 BATTERY CABINETS ................................................................................................................................................................................................. 25 11.7 EMPTY BATTERY CABINETS .................................................................................................................................................................................. 25 11.8 PARALLEL OUTPUT CABINET (WITH CENTRALIZED MAINTENANCE BYPASS).................................................................................. 25 11.9 ADDITIONAL CUSTOMER INTERFACE CARD.................................................................................................................................................. 25 11.10 ADVANCED SNMP CARD ....................................................................................................................................................................................... 25 11.11 SURGE SUPPRESSORS............................................................................................................................................................................................ 26 11.12 AUXILIARY POWER SUPPLY (APS) 24 VDC...................................................................................................................................................... 26 11.13 REMOTE SIGNALLING BOX (RSB) ........................................................................................................................................................................ 26 11.14 ISM - INTELLIGENT SYNCHRONIZATION MODULE ..................................................................................................................................... 26 11.15 GE POWER DIAGNOSTICS ..................................................................................................................................................................................... 26 11.16 GE DATA PROTECTION ........................................................................................................................................................................................... 26


1 INTRODUCTION SG-CE Series family is an Uninterruptible Power Supply (UPS) designed to meet highest requirements concerning reliability and quality of electrical energy supply even in the most demanding applications. The SG-CE Series UPS is a true double conversion UPS system, with integrated output transformer for galvanic isolation, where the load is continuously supplied by the inverter through the rectifier. The new term ‘VFI’ (Voltage & Frequency Independent) applies for this concept, where the AC input voltage is first converted to DC voltage, also used to charge the battery, and then re-converted to AC voltage to supply the load. This design and product topology is recognized as the only one able to reach the highest requirements of power reliability for critical applications. High output power quality, excellent behaviour with dynamic load variations, ‘zero’ interruption transfer time, adequate overvoltage protection and filtering are some of the most important features of this kind of UPS. Thanks to RPA (Redundant Parallel Architecture) the system power can be expanded by paralleling units or increased in reliability by adding redundant units. GE’s SG-CE Series family of UPS ranges from 160-300kVA are available either with traditional thyristor rectifier technology, or with a rectifier based on GE’s cutting edge PurePulse™ technology. PurePulse™ is an innovative control algorithm applied on the IGBT rectifier. This current source rectifier assures an Input Total Harmonic Distortion (THDi) of less than 4%, and draws a pure sinusoidal waveform from the mains. The advantages of GE’s PurePulse™ technology span from savings in the sizing of upfront equipment (such as generator sets, cabling and circuit breakers) to a total elimination of costs for additional active or passive input filters. PurePulse™ is a breakthrough innovation from GE. The SG-CE Series constitutes a major renewal of the range and a breakthrough with respect to existing solutions. In response to evolving market needs, the SG-CE Series is a product situated to be highly competitive in the three-phase market from 160 to 300 kVA.


Product key features • True On-Line Double Conversion

Double conversion guarantees the continuity of the output power supply. VFI technology (Voltage and Frequency Independent) avoids the propagation of any input mains disturbances to the critical loads. The inverter output isolation transformer provides galvanic separation between the UPS and the load, avoiding any possible interference of the UPS with the load.

TRANSFORMERINVERTER

BATTERY

AUTOMATIC BYPASS

RECTIFIER INVERTER

RECTIFIERSUPPLY

BYPASSSUPPLY

Thanks to double conversion technology the UPS can be also used as frequency convert.

• Fully digital - DSP technology

DSP (Digital Signal Processor) performance enables the high sampling rates required to achieve the appropriate bandwidth for the current and voltage controls for an efficient double-conversion UPS. UPS characteristics and working data are set by setting parameters without any trimmer or analog regulation, improving UPS response time and stability of installed parameters. • Redundant Parallel Architecture (RPA)

Redundant Parallel Architecture (RPA) is an exclusive GE technology. With RPA, SG-CE Series UPS are controlled in a true peer-to-peer configuration where all critical elements and functions (including bypass) are redundant. By the RPA technology it could be possible: - increase UPS system reliability and security

(paralleling for redundancy) - expand UPS system total installed nominal power,

for more power available or future expansion (paralleling for capacity)

SGSE_160-200_S1_RPA disposition_01

UPS 1UPS 2

3 - 4 - 5 - 6UPS

SG-CE Series is able to run up to 6 UPS in RPA configuration, performing a reliable and highest power installation.


• Compact size design

The accuracy in the design has performed an extreme compact size. The combination of: - compact footprint - true front access only for operation and

maintenance (installation against a wall) allow to install the unit in small area, saving space for other equipments.

SGSE_160-200_S1_UPS dimension_01

1'90

0mm

1'350mm850mm SG-CE Series 160-200 kVA


1'90

0mm

1'500mm850mm SG-CE Series 250-300 kVA

• High Efficiency at full and partial loads

To reduce the environmental impact and to compensate the cost of the energy, SG-CE Series is performing high efficiency at full and partial loads conditions, maintaining so high performances at the real UPS working conditions. These performances allows: - reducing cost for ownership in energy losses - reducing the energy consumption with benefit effect

on the environment - downsizing air cooling system

Efficiency

0%

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The functionality SEM (Super Eco Mode) allows a further benefit, increasing the efficiency up to 98%, maintaining a high level of load protection. SEM functionality is available as standard feature for SG-CE Series in single operation mode. • IGBT technology for clean input

SG-CE Series PurePulseTM uses an innovative IGBT bridge, performing an input sinusoidal current assuring a limited Total Current Harmonic Distortion THDi <4% at full and partial loads and power factor 0.99. Thanks to these performances, size and costs of upstream equipments, like cables, generators, transformers, etc. are reduced.

Total Input Harmonic Distortion

Load

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0% 20% 40% 60% 80% 100%

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Total Input Harmonic Distortion

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0% 20% 40% 60% 80% 100%

THD

i


• UPS output power capability

SG-CE Series is proper design to comply with today’s trend toward Power Factor Corrected (PFC) equipment; these critical loads can be properly supplied without consider any derating in output power. SG-CE Series is able to supply full power for any type of load with power factor up to 0.9 lagging (inductive loads) and 0.9 leading (capacitive loads). Any critical load (inductive, resistive and capacitive) with a crest factor up to 3:1 can be properly supplied without considering any derating of the power available at the UPS terminals. Thanks to this feature no complex calculation about the loads characteristics are required, just select the proper UPS size based on the required power.

• Generator set friendly compatibility

The negligible content of input harmonics and the unit power factor at UPS input, available with PurePulse technology, allow an easily integration of SG-CE Series with a GenSet. The GenSet oversize is so limited up to 1.1 the size of the UPS, reducing so costs and installation space. • No output voltage distortion

SG-CE Series provide real sinewave output voltage with linear and non-linear loads. A proper voltage supply reduced the stress for load power supply equipments, increasing load reliability and availability and reducing service interventions. Voltage distortion - linear loads: THDv < 1.5% - non-linear loads: THDv < 3%

output voltage

current


output voltage

load step 0-100%

• Output Voltage Dynamic Stiffness

The high Output Voltage Dynamic Stiffness performances allows to supply critical stepping loads, as pulsating loads in healthcare or in heavy industry applications, without consider any derating of the UPS power. The stability of the output voltage also in these critical situations, guaranteed the good performances of the loads avoiding any disturbance on the application. Output voltage distortion: - Static : < + 1% - Dynamic at load steps 0-50-0% : < + 2% - Dynamic at load steps 0-100-0% : < + 3%

• Electro Magnetic Compatibility interference compensation

SG-CE Series is able to comply with EMC requirements according to IEC 62040-2 category C2 (formerly class A). Proper EMC filters are used to reduce the effects of radio frequency emissions (kHz and MHz), allowing so installing the UPS even in sensitive applications like data-centre or telecommunication installations where these emissions could cause interference with nearby equipments. This feature is available as option by additional cabinet.

• Various options

SG-CE Series offers various options to respond at all application needs to respond to the installations requirements from the simplest one to the most complex.


2 STANDARDS 2.1 CE CONFORMITY SG-CE Series UPS are designed in conformity with European Council directives: • 89 / 336 EEC (and its amendments 91 / 263 and 92 / 31) • 73 / 23 EEC • 93 / 68 EEC concerning to electromagnetic compatibility (EMC) and safety of electrical equipment. 2.2 STANDARDS Safety • IEC 62040-1-1 General and safety requirements for UPS used in operator access area. • IEC 60950 Safety of information equipment including electrical business equipment.

+A1 +A2 +A3 Electromagnetic compatibility (EMC) • IEC 62040-2 EMC Requirements. Performance • IEC 62040-3 Method of specifying the performance and test requirements. 2.3 UPS CLASSIFICATION Classification according to the IEC 62040-3 standard: VFI – SS – 111

VFI Voltage & Frequency Independent Frequency Converter operation available SS Output voltage THD < 8% for all loads SG-CE Series: THDv < 1.5% linear loads < 3% non-linear loads 111 Class 1 performance SG-CE Series exceeding Class 1 ‘’Best in Class’’ in dynamic response: +/- 3% at load step: 0-100%-0 +/- 2% at load step: 0-50%-0

Output dynamic performance – Class 1

SG-CE Series performances

Standard requirements


3 MAIN UPS ELEMENTS

RECTIFIER

BATTERY

SSM

INVERTER

LOA

DS

Q1

Q2

Q4

K3

K6

K7

MANUAL BYPASS

AUTOMATIC BYPASS

INP

UT

MAI

NS

INVERTERTRANSFORMER

3.1 CONTROL SYSTEM SG-CE Series is designed with microprocessor-controlled signal processing circuits. Fully digital - DSP technology Digital Signal Processor (DSP), Flash memory and SVM strategies are the technology corner stones of a new age of power quality and power reliability. DSP (Digital Signal Processor) performance enables the high sampling rates required to achieve the appropriate bandwidth for the current and voltage controls for an efficient double-conversion UPS. SMD technology The system processing electronic uses Surface Mounted Device (SMD) circuit technology. This provides an improvement in the signal-to-noise ratio, and prolongs calibration stability, therefore more immunity against electrical disturbances. This technology allows higher PCB integration resulting in higher reliability and serviceability of the UPS. SVM strategy The Space Vector Modulation (SVM) strategy is much more efficient them a standard PWM (Pulse With Modulation). SVM allows the switching losses to be reduced and a more extended use of the battery capacity therefore more autonomy. Fan failure detection SG-CE Series ventilation system is monitored to guarantee the highest level of UPS availability. The alarm generated informs the operator allowing fan replacement as this situation occurs. Operator interface The interface between the operator and the unit is provided by the monitoring system on the front panel. It consists of an active mimic diagram, a keyboard and a backlit display. The UPS status information (alarms, events, parameters) are provided in real time by the LCD display.


3.2 RECTIFIER The standard rectifier consists of a controlled bridge, which converts the 3-phase mains voltage into a controlled and regulated DC-voltage. This regulated DC-voltage is used to supply power to the inverter, and to provide charging power to the battery. SG-CE Series UPS are available into two versions:

• SG-CE Series is designed by using the traditional thyristor bridge technology

• SG-CE Series PurePulseTM uses an innovative IGBT bridge, performing an input sinusoidal current assuring a limited Total Current Harmonic Distortion THDi <4% at full and partial loads and power factor 0.99. No additional filters to reduce current harmonics or to increase power factor are required.

Input voltage and frequency windows

SG-CE Series UPS are designed for nominal voltage 3x380/400/415V, 50 or 60 Hz. The wide AC input voltage (340 ÷ 460 V) and frequency (45÷66Hz, 50/60Hz ±10%) accepted by the rectifier, avoids battery operation even with an unstable AC input voltage range. Battery storage energy is so preserved for main input mains perturbations. The reduced battery discharge/charge cycles preserve also battery lifetime.

Different voltages are accepted by additional adaptation transformer. Soft start

As standard feature the rectifier employs software control to limit the start-up current and voltage. In this way the full load is applied to the mains gradually, preventing an instable situation for the upstream protecting devices and for emergency GenSets regulation. In case of RPA configuration, the different UPS start sequentially.


3.3 INVERTER The inverter converts the DC-voltage into a three-phase AC-voltage with constant amplitude and frequency, which is completely independent and isolated from the AC-input voltage. Output voltage and frequency The UPS output voltage is set at 3x380/400/415 V + neutral 50 or 60 Hz.

Different output voltages are possible by additional adaptation transformer. PWM and SVM regulation The SG-CE Series uses an IGBT (Insulated Gate Bipolar Transistor) based inverter with PWM (Pulse With Modulation); SVM (Space Vector Modulation) algorithm achieve extremely high efficiency at full and partial load conditions and highest quality of the output voltage.

Pulse With Modulation

Vα

Vβ

10

11001

011

001 101

111 00

us

Space Vector Modulation

Superior Output Voltage Dynamic Stiffness PWM combined with SVM algorithm guarantee high output dynamic voltage stiffness, performing stable and pure sinusoidal voltage with non-linear and pulsating loads Inverter output transformer The inverter with accompanying isolation transformer allows the output to remain totally unaffected by mains disturbances or failures while delivering extremely low output distortion when driving non-linear loads. 3.4 AUTOMATIC BYPASS The automatic bypass consists of a static semiconductor-switch (SSM: Static Switch Module), used to provide an uninterrupted transfer of the load from Inverter to mains and vice-versa. It also transfers the load to input mains in the case of overload, short-circuit, inverter fault condition or based on manual input. During overload and short-circuit, re-transfer to inverter is automatically initiated once normal load conditions are restored. The load can be transferred to bypass provided that the bypass input supply is within the voltage and frequency tolerances (adjustable); otherwise the inverter operates with its internal frequency (free running) and the transfer to mains inhibited. Back-feed protection SG-CE Series is equipped, as standard feature, by a back-feed protection tool installed inside the UPS cabinet. The back-feed protection is a safety requirement for servicing personnel, according to IEC 62040-1 (General and Safety Requirements for UPS), realized by an electromagnetic contactor in series with the static bypass switch of the bypass line. It avoids flow of current upstream of the UPS, via the automatic bypass, during operation in battery mode. This protection works automatically by opening contactor K6 (in series with the thyristors of the static switch) and eventually K7, and acts in case of internal defects of the system, or due to wrong manipulations on the manual bypass Q2.


3.5 MANUAL BYPASS The manual bypass consists of a pair of manual switches (Q1 and Q2), which removes the UPS from the Load for maintenance, while still supplying the load with power directly from the mains. 3.6 BATTERY The battery supplies the DC power to the Inverter when the mains is missing or out of acceptable tolerances. It is normally sized to supply the inverter at rated load for the required back-up time. SG-CE Series is designed to operate with different battery technologies - Pb sealed (VRLA) - Pb vented - NiCd for autonomy time from few minutes to hours. Superior Battery Management (SBM)

The battery system of a UPS is a critical element, which defines system reliability and must be effectively maintained and monitored to ensure optimum reliability and protection of the critical load. To preserve the UPS system reliability and the battery lifetime, SG-CE Series provide, as standard feature, a battery management feature know as SBM (Superior Battery Management). SBM is a programmable management feature that monitors the battery system for failures by periodically testing the battery system. The programmable features of SBM allow the user to select the frequency and type of battery tests that are to be performed. The frequency can range from once a week to once a year, and the type of test can range from deep cycle to a short three -minute discharge. All tests are performed automatically with the UPS in ‘normal operation mode'. The tests data are logged in the UPS events menu and any failure of the battery system is reported to the user with a front panel alarm. SBM also gives the user the ability to perform a manual test at any time. True battery autonomy

SBM also performs the ability to calculate true battery autonomy and remaining back up time, during a mains outage, based on effective UPS load. Based on real autonomy time, the UPS initiate the shutdown procedure, named ‘stop operation’, starting when the remaining time is limited to 3 min. (adjustable) generating an alarm to warn the operator or to star-up the load shut down procedure. Battery voltage compensation

In order to preserve battery lifetime, SBM perform the battery floating voltage compensation based on effective operating temperature.


4 OPERATION MODES 4.1 NORMAL OPERATION MODE VFI (VOLTAGE FREQUENCY INDEPENDENT) Under normal conditions the load is permanently powered by the inverter with constant amplitude and frequency. The rectifier, powered by the mains, supplies the inverter and the battery-charger keeps the battery fully charged. The inverter converts the DC voltage in a new AC sine wave voltage with constant amplitude and frequency independently from the input mains power. 4.2 SEM MODE OPERATION (SUPER ECO MODE) When the SEM mode is selected, and the mains power is available, the Load is normally powered through the automatic bypass. When the mains voltage is detected out of the prescribed tolerances, the load is automatically transferred to the inverter. When the mains recovers, the load returns to the automatic bypass after a variable time defined by the control unit. The SEM mode can be configured directly by the user for higher efficiency, considering the mains reliability and criticality of the Load. The selection between the two operation modes “VFI mode” and “SEM mode”, or switching between operation modes at required time, can be done through the UPS control panel. 4.3 MAINS FAILURE OPERATION When the mains is no longer within acceptable tolerances, the battery will provide the DC power to the inverter. The inverter will maintain continuous AC power to the load until the battery voltage reaches the lower limit of the Inverter operation capability. During the discharge, the LCD screen displays the estimated time the Battery can support the critical load. Prior to complete battery discharge, the "stop operation" alarm (shutdown imminent) warns the operator that the Battery is almost discharged and the UPS is about to shut down.


4.4 MAINS RECOVERY OPERATION As soon as the AC input power recovers, the rectifier will start automatically, supplying DC power to the inverter and recharging the battery. If the Inverter was previously shut down due to low battery, the load will be initially powered by mains through the automatic bypass.

When the battery is sufficiently recharged to ensure a minimum time of operation with the present load, the Inverter will start automatically and the load will be transferred back to the inverter. 4.5 AUTOMATIC BYPASS

In normal operation, the load is supplied by the inverter.

When the control system detects a fault in the inverter, an overload condition or a short-circuit condition, the automatic bypass will transfer the critical load to the mains without interruption.

When the Inverter recovers, or the overload or short-circuit condition is corrected, the load will be automatically transferred back to the Inverter. If the UPS is unable to return to normal mode following an automatic transfer to bypass mode, an alarm condition will be initiated.

A manual bypass (operator initiated) will not be considered as an alarm condition. 4.6 MANUAL BYPASS The manual bypass circuit consists of manual switches Q1 and Q2, which permits transfer of the load directly to the unconditioned AC power without interruption, leaving the UPS available for maintenance.

4.7 FREQUENCY CONVERTER SG-CE Series can run as frequency converter 50 to 60 Hz or vice-versa.

In this operation mode the automatic bypass and manual bypass functions are inhibited, therefore the load cannot be transferred to mains in case of overload, short circuit, or inverter failure.


5 REDUNDANT PARALLEL ARCHITECTURE (RPA)

5.1 PARALLEL SYSTEM OPERATION

5.1.1 Introduction to the parallel system

Whenever SG-CE Series UPS are applied in Mission Critical Applications, a single unit protection is no longer sufficient. To respond to this requirement for the highest level of reliability, GE C&I developed a redundant-parallel system, known as RPA (Redundant Parallel Architecture), a GE C&I exclusivity.

To achieve highest levels of reliability, two or more SG-CE Series are linked in a peer-to-peer configuration, concurrently supplying the load. Thanks to the total modularity of RPA, the system can be easily expanded to higher power or higher redundancy levels at any time under full working conditions.

Two or more equal power units can be paralleled to increase the output power (paralleling for capacity) or to improve the overall reliability of an UPS system (paralleling for redundancy). The outputs of parallel units are connected to a common power bus, and in normal operation the units connected on the parallel bus share the load equally.

The modular concept of SG-CE Series allows parallel operation of up to 6 units, without using paralleling switchgear, external bypass circuits or common control circuitry. Parallel units for power capacity Several units can be paralleled in order to achieve output power greater than the maximum power of a single unit. The maximum total power shared between the paralleled units is equal to the total installed nominal power. In the event of a failure of one unit, the power supplied by the UPS system becomes insufficient and the load will be transferred to the mains bypass source.


Parallel units for redundancy The nominal power rating of the n out of n+1 redundant paralleled modules must be equal to or higher than the required Load power. The load will be equally shared by the n+1 units connected on the output bus. Should one of the n+1 paralleled units trip Off-line, the remaining (n) modules will supply the load, maintaining conditioned power to the critical load. From this results higher reliability and security for the load plus a higher MTBF (Mean Time Between Failures). 5.1.2 Features of RPA parallel system

The SG-CE Series parallel system is designed to provide a complete Redundant Parallel Architecture, and is free from common equipment. Not only the inverters but also the bypass functions are redundant. When one UPS needs maintenance or service, the load is powered by the other units. The redundant communication bus to which all units are connected keeps each unit informed about the status of all the other units. The control panel located on each unit allows controlling and monitoring the status of this unit. 5.1.3 System control

A high-speed redundant, serial communication bus guarantees the exchange of data and thus the communication between the CPU's of each unit. Each module controls is own function and operational status and communicates with all other modules, in order to act or react if necessary, adapting to the new conditions. 5.1.4 Synchronization

All units are identical, but one unit is arbitrarily selected as the reference and all the other units synchronize to this unit, which in turn synchronizes to the mains bypass voltage, as long as the latter is within tolerances. In case of reference failure, another unit in the parallel system is automatically chosen to take over the reference role. The bypass input for all the units of the parallel system must be supplied from the same AC source (no phase shift allowed between them). 5.1.5 Load sharing

On each unit of the parallel system, inverter output voltage and current are measured and applied to a load sharing bus. An eventual difference between the units is therefore automatically equalized.


5.2 RPA OPERATION MODES In order to ensure no-break power supply under all operating conditions, the RPA system has several operating modes. Transfers from one mode to the other are performed without interruption for the load. 5.2.1 Normal operation mode

When the system is in ‘normal operation mode’, all the rectifiers as well as all the inverters of the installation are operating. The mains supplies the parallel-connected rectifiers. Each rectifier supplies both battery and inverter by converting the mains AC voltage into a DC voltage. All the inverters equally share the load.

LOADMAINS

SSM

K7Q4

Q2

K6Q1

K3

K7Q4

Q2

K6Q1

K3

SSM

5.2.2 Battery mode

A mains failure will trigger ’battery mode’. The rectifiers do not supply any energy. The batteries supply the inverters with the required energy. The inverters supply the load as described under ‘normal operation mode’. If the mains does not recover and the batteries are used up, the load will be cut off. In this situation, when the mains recovers, the parallel bypass will supply the load. For security reasons, the inverters will have to be switched On manually.

LOADMAINS

SSM

K7Q4

Q2

K6Q1

K3

SSM

K7Q4

Q2

K6Q1

K3

5.2.3 Rectifier failure

'Rectifier disturbance mode' is recognised by a disturbance in one or more rectifier. The disturbed rectifier(s) do not supply any energy. Depending on the set-up, defined by the customer, the inverters of those single units having disturbed rectifiers, will draw their energy from the battery or RPA will immediately isolate the disturbed unit. The other installations continue in ‘normal operation mode'. All the inverters acting jointly, as described under ‘normal operation mode' sustain the load.

LOADMAINS

SSM

K7 Q4

Q2

K6Q1

K3

SSM

K7 Q4

Q2

K6Q1

K3


5.2.4 Inverter disturbance

'Inverter disturbance mode' is triggered by a disturbance in one or more inverters.

As long as the output of the remaining single units is sufficient to sustain the load, RPA remains in ‘normal operation mode' but the system may become ‘parallel’ and is no longer ‘redundant’.

The inverter output contactor (K7) of the disturbed unit opens automatically to isolate the disturbed unit from the load.

The rectifiers of the disturbed units, depending on the nature of the disturbance, will continue to charge the batteries.

LOADMAINS

SSM

K7Q4

Q2

K6Q1

K3

SSM

K7Q4

Q2

K6Q1

K3

The disturbed units can also be completely separated from the mains and from the load, as illustrated, to enable repair work to be carried out. 5.2.5 Bypass mode

Bypass mode’ is triggered when all the available invertersare unable to sustain the load (e.g. in the case ofdisturbance of several inverters or severe overload). If the load exceeds 110% of the sum of the rated outputsof all inverters, the load will be sustained directly from theinput mains via the static bypasses. All inverter output contactors (K7) are openedautomatically and the inverters, depending on the type ofdisturbance, continue to operate and the rectifierscontinue to charge the batteries. If the load level once again returns below 100% of thesum of the outputs of all the available inverters, RPA willclose all K7 and automatically switches back to ‘normaloperation mode'.

LOADMAINS

SSM

K7 Q4

Q2

K6Q1

K3

SSM

K7 Q4

Q2

K6Q1

K3

5.2.6 Maintenance bypass mode

The ‘maintenance bypass mode’ is used in case, all units are switched off and the system output has to remain powered. One maintenance bypass for each UPS. Maintenance on each UPS subcomponents can be made voltage free. During this mode of operation the load is not protected.

LOADMAINS

SSM

K7 Q4

Q2

K6Q1

K3

SSM

K7 Q4

Q2

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6 DIMENSIONS 6.1 SG-CE Series 160 & 200 kVA

Dimensions SG-CE Series 160 - 200 kVA

SG-CE Series 160 - 200 kVA PurePulseTM (W x D x H)

1350 x 850 x 1900 mm 53.15 x 33.47 x 74.81 inches


1'90

0mm

1'350mm850mm

6.2 SG-CE Series 250 & 300 kVA

Dimensions SG-CE Series 250 - 300 kVA

SG-CE Series 250 - 300 kVA PurePulseTM (W x D x H)

1500 x 850 x 1900 mm 59.06 x 33.47 x 74.81 inches


1'90

0mm

1'500mm850mm


7 INTEGRATION WITH POWER QUALITY SYSTEMS SG-CE Series UPS is designed for the integration with different power quality equipments, to satisfy any demand for mission critical applications. Thanks to ISM (Intelligent Synchronization Module) two RPA systems, up to 5 UPS each, can be synchronized and integrated in the same system.

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UPS: Uninterruptible Power Supply STS: Static Transfer Switch ISM: Intelligent Synchronization Module

8 INTEGRATION IN BULDING MANAGEMENT SYSTEM SG-CE Series can be easily integrated into a Building Management System (BMS) by the Customer Interface card, which helps to exchange information about the status of the UPS. The Gen-ON contact integrated allows operating in combination with a GenSet by defining the operation mode of the UPS by programmable setting. UPS supervision capability - 1x RS232 Serial Communication Port (J3) - 6 programmable potential free alarm contacts (X1 - J2) - 1x Emergency Power OFF contact (X2) - 1x Gen-ON Input contact (X1 - J2) - 1x Control Input contact (X1 - J2)

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9 CONTROL PANEL Control Panel

A user-friendly control panel is available on the UPSfront door, able to shows the UPS workingconditions and all the information by a LCD screen(4 lines with 20 characters each and six key).

Synoptic diagram

LEDs on synoptic diagram

LED 1 = Input Mains Rectifier (green) LED 2 = Input Mains Bypass (green) LED 3 = Rectifier ON (green) LED 4a/b = Discharging (yellow) /Charging (green) LED 5 = Inverter ON (green) LED 6 = Load on Inverter (green) LED 7 = Load on Mains (green) LED 8 = Output Load Voltage (green) LED 9 = Manual Bypass (Q2) ON (yellow)

Battery level

All LEDs ON indicate that the Battery is fully charged LED a Yellow: Fixed: indicating last 25 % of Battery backup.

Blinking: indicating Battery backup ≤ 5%. LED b, c, d Green: Each one indicating 25 % of Battery backup.

Load level

LEDs ON indicate the Load status of the UPS LED d red (≥100 % load) LED c yellow (100% load) LED b green (66% load) LED a green (33% load)

User LCD Interface

LCD screen

Consist of an LCD screen, 4 lines with 20 characters each and six keys. It offers: • UPS operating, AC and DC metering information. • History of events (alarms and messages). • Functionality can be programmed to meet

customer needs by changing parameters.

Alarms

alarm

General alarm condition It blinks when one or more alarm is activated. The internal buzzer is ON.

service check

Service check LED ON indicates that a regular maintenance service is needed.

Sop operation LED ON indicates that the Battery reserve lasts for only 3 more minutes (selectable). LED ON in case of overtemperature or overload >125% together with missing Mains. After the timeout the Inverter will shut down.

Total off pushbutton

The push-button “total off” is protected by a red cover. By pressing it, you immediately separate the UPS from mains and the Load.


10 CONNECTIVITY GE Power Diagnostics

GE Power Diagnostics is an anytime, anywhere concept in UPS status monitoring and alarm notification that has been successfully implemented in numerous of installations supporting up to multi-hundred UPS. Based on the leading Intelligent Remote Information System IRIS all GE UPS types as well as 3rd party UPS are supported. Accessing the latest site information via Web and being alerted by Email, SMS or Fax, it enables the user to make timely decisions in case of changing critical conditions. With comprehensive data collection and analysis IRIS is not only a Remote Monitoring & Diagnostics (RM&D) system but, the core of the integrated service offering GE Power Diagnostics. Customer benefits

• 24*7 remote access to your UPS data using standard web browser • Automatic alerting in case of event direct and immediately to you cell

phone or by email • Regularly operational reports with proactive information based on

data validation from our Diagnostics team, analysing • Critical trends and probability of future problems • Required actions for maintenance or components replacement • Preventive information using PMAD (Preventive Maintenance &

Advanced Diagnostics) feature • Possibility to reduce intervention and onsite work • Remote troubleshooting and online guidance for fault finding • Potential to minimize repair times as a result of data analysis. • Service team is arriving pre-informed and prepared to solve the

problem and is carrying the right spare parts

Topologies

IRIS offers various communication possibilities which can be easily combined to match your requirements: • Analog modem using normal phone line • GPRS modem using cell phone network • Network solution using SNMP communication over Ethernet


11 OPTIONS A wide range of options enables SG-CE Series UPS system to fulfil a wide range of needs. 11.1 RPA CONFIGURATION KIT This option allows up to 6 units for parallel operation.

The RPA kit can configure any single UPS unit into a parallel unit.

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UPS 1UPS 2

3 - 4 - 5 - 6UPS

11.2 RECTIFIER/BYPASS/UPS INPUT TRANSFORMER Used to help isolate the UPS form the input mains or to generate a local UPS neutral whenever required.

Located in additional cabinet (W x D x H): 850 x 850 x 1900 mm 33.47 x 33.47 x 74.81 inches

1000 x 850 x 1900 mm 39.37 x 33.47 x 74.81 inches

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11.3 VOLTAGE ADAPTATION TRANSFORMERS Input / output voltage adaptation transformers, to comply with voltage installation requirements different for standard ones. Dimension according to UPS size.

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11.4 EMC CATEGORY C2 (CLASS A) EMC Filter is used to reduce conducted electromagnetic interference to the limits specified in the EMC (Electromagnetic Compatibility) standards IEC 62040-2 category C2 (formerly Class A) Located in additional cabinet (W x D x H): 500 x 850 x 1900 mm 19.69 x 33.47 x 74.81 inches


11.5 TOP ENTRY CABLES Allows the connection of input and output cables from the top of the UPS. Located in additional cabinet (W x D x H): 500 x 850 x 1900 mm 19.69 x 33.47 x 74.81 inches



11.6 BATTERY CABINETS Battery cabinets 2 x 50 Ah and 2 x 75Ah covering different autonomy. Dimensions (W x D x H): 850 x 850 x 1900 mm 33.47 x 33.47 x 74.81 inches 1500 x 850 x 1900 mm 59.06 x 33.47 x 74.81 inches

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11.7 EMPTY BATTERY CABINETS Matching battery cabinets with variable shelves. Dimensions (W x D x H): 850 x 850 x 1900 mm 33.47 x 33.47 x 74.81 inches 1500 x 850 x 1900 mm 59.06 x 33.47 x 74.81 inches



11.8 PARALLEL OUTPUT CABINET (WITH CENTRALIZED MAINTENANCE BYPASS) Matching cabinet for parallel output operation, allowing maintenance on the UPS system on on each single UPS. Dimension according to RPA units.

UPS 1 UPS 2 UPS n


11.9 ADDITIONAL CUSTOMER INTERFACE CARD A second Customer interface card could be installed inside the UPS, to extend the control of the UPS in a Building Management system.

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11.10 ADVANCED SNMP CARD Simple Network Management Protocol The Advanced SNMP Card is an interface to the Ethernet Network, and provides UPS information via the standard SNMP Protocol (UPS-MIB (RFC-1628); GE Single MIB; GE Parallel MIB). The UPS can therefore be managed by a Network Management System (NMS) or by our applications (GE Power Diagnostic, GE Data Protection and GE Service Software), which uses this information to determine the state of the UPS in order to guarantee safe and orderly shutdown of the server, when needed.


11.11 SURGE SUPPRESSORS Provide UPS input protection against spikes coming from input mains.

11.12 AUXILIARY POWER SUPPLY (APS) 24 VDC Power supply for external devices

11.13 REMOTE SIGNALLING BOX (RSB) Remote Signalling Box equipped with: synoptic diagram, alarm reset and lamp test keys.

Mute Test

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11.14 ISM - INTELLIGENT SYNCHRONIZATION MODULE The ISM is an additional external accessory that can be used to synchronize two separated and independent UPS groups. Each group could be done by single UPS (provided that RPA is installed) or parallel with up to 5 UPS in RPA configuration for each group. It is typically used in combination with a Static Transfer Switch (STS), to perform additional redundancy to load supply.

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11.15 GE POWER DIAGNOSTICS With GE’s Power Diagnostics it is possible to combine the remote monitoring and diagnostic core product IRIS web and dedicated services in a comprehensive solution to minimize risk and maintenance costs. 24x7 UPS monitoring, regular operational status reports, immediate alerting for alarms and critical events via SMS, e-mail, fax are just some of the characteristics of the RM&D solution. In particular the system is scalable and can be easily adapted to various configurations, while remaining safe through a multi-level security system.

11.16 GE DATA PROTECTION GE Data Protection software can communicate with the UPS over RS-232, USB or SNMP to receive status information and measurement values of the UPS. In case of a critical condition (time on battery, remaining battery autonomy time or low battery) for the load, the software starts a controlled shutdown. An enhanced alarm management system provides the possibility to start applications, send messages, and send e-mails for every upcoming or disappearing alarm.

Documents

Product description - NETI3187046.la01.neti.ee/ and... · Product Description ... The advantages of GE’s PurePulse™ technology span from savings in the sizing of upfront ... PurePulse™