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UNITROL® 6800 Excitation Systems Proven Performance Solutions UNITROL® 6800 Product Benefits ABB is the world leading volume supplier of high quality UNITROL Automatic Voltage Regulators (AVR) and Static Excitation Systems (SES) that offer solutions for any type and size of power plant with high return on investment. UNITROL 6800 SES, from UNITROL 6000 product family, cover medium to high power range applications and set a new benchmark for the global industry with respect to functionality, r
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  UNITROL ® 6800 Excitation SystemsProven Performance Solutions  2 UNITROL ® 6800 Excitation Systems | ABB UNITROL ® 6800Product Benefits  ABB is the world leading volume supplier of high qualityUNITROL Automatic Voltage Regulators (AVR) and StaticExcitation Systems (SES) that offer solutions for any typeand size of power plant with high return on investment.UNITROL 6800 SES, from UNITROL 6000 product family,cover medium to high power range applications and seta new benchmark for the global industry with respect tofunctionality, reliability and connectivity. Key benefits  +Easy operation, monitoring andmaintenance of the system User-friendly Excitation Control Terminal  +Sustainable quality and shortdelivery time Usage of well-proven prefabricated functional modules  +Optimized contribution to networkstability Built-in Power System Stabilizer (PSS) options  +High control integration ability Prepared for IEC 61850  +Efficient product life cycle management Extended life time of your assets with minimum costs  +Professional technical help alwayswithin your reach  ABB’s global excitation service network Tailor-made systemMain featuresSelected applications  The flexible mechanical concept of UNITROL 6800 is basedon well-proven prefabricated functional modules. With single/ double channel control configuration (additional back-upcontroller on request) and a wide selection of thyristor bridgemodules, the system can be configured to meet all field dataand availability requirements. +IEC 61131 application software programming with ABB Control Builder M +Fully compatible with ABB’s 800xA IT platform +Fiber optic serial communication between the cubicles +Consequent electrical insulation and high EMC immunity +Easy detached installation of the control cubicle +Maximum safety for service personnel in case of online maintenance +64 bit floating point CPU +No restrictions regarding data scaling and range +Nuclear power plant, field current Ifn >10’000 A +Underground hydro power plant, Ifn 4500 A, redundant airto water heat exchanger system +Gas turbine power plant, MEGATROL package with Ifn6000 A and static frequency converter 15 MW for turbinestarting +Coal-fired power plant, Ifn 3500 A, power part in IP54 con-tainer, detached AVR cabinet with >150 m distance +Hydro power plant, Ifn 3800 A, two DC field circuit break-ers, one for DC back-up excitation  Generator/networkmeasurements Excitationtransformercurrentmeasurement Control channel #1 CCM  AC800PEC Control channel #2 CCM  AC800PEC Back-up channel CCMCIO    C  u  s   t  o  m  e  r   i  n   t  e  r   f  a  c  e   I  n   t  e  r  n  a   l   i  n   t  e  r   f  a  c  e Optical data transmission Analog measurements signalsPower semiconductor control signalsGeneral data path GDICSICCI Converter #1  ABB | Excitation Systems UNITROL ® 6800 3 Engineering Concept UNITROL 6800 systems can be built with up to three controlchannels: two fully featured channels and one back-up channelfor emergency control of the generator. The back-up channelis a single Communication, Control and Measurement (CCM)unit. Its separate hardware and different software guaranteeutmost system availability. Each channel is able to control allmodules of the redundant power converter. Each module is UNITROL 6800SESUNITROL 6080SES/AVR Closed-loopControlSingle channelYesYesDouble channelYesYesBack-up channelYesYes 1) ConverterModule TypeD5 (DCS800)UNL 13300UNL 14300D1…D5 (DCS800)UNL 13300ConverterRedundancy1+1n-1/max.modules Yes Yes / 8 YesNoInput DataMax. AC voltageRated frequency1500 V50 / 60 Hz690 V50 / 60 – 480 Hz 2) Max. OutputDataCont. DC currentCeiling voltage10’000 A1900 V1600 A850 V connected via its own Converter Control Interface (CCI), whichalso provides diagnostic and maintenance functions includingtransient recorder. Converter Signal Interface (CSI) and GateDriver Interface (GDI) provide potential barriers inside the powerconverter. On the system level Combined Input Output (CIO)units are used to interface with internal and external analog anddigital I/O signals, 100% redundant if required. 1) With third converter module for max. continuous DC current ≤ 800 A2) >50/60 Hz for AVRs only; single phase supply for AVRs also available 7 Product Portfolio UNITROL 6800SESUNITROL 6080SESUNITROL 6080 AVRUNITROL 1000 AVR10154010040080010001600400010000 Thyristor converterUNL 14300UNL 13300UNL 13300D5D5D2, D3, D4UN100015UN10007PM40 Thyristor converter Thyristor converterIGBT converter3 Excitation Current I [ADC] EN D1, D2, D3, D4; 16...50...400 Hz Hardware concept of UNITROL 6800  4 UNITROL ® 6800 Excitation Systems | ABBABB | Excitation Systems UNITROL ® 6800 5 DC output DC cables / bus ducts enter from thebottom or top Control electronics  Two or three redundant control chan-nels. All devices easily accessible fortesting and replacement during onlineoperation The communication between controlchannel(s), power converter, andanalog and digital I/O devices is donevia fiber optic cables. It reduceselectro-magnetic interference andallows an easy detached installa-tion of the control cubicle. In case ofonline maintenance it provides maxi-mum safety for service personnel.Field suppression Field breaker, discharge resistor andcrowbar field overvoltage protectionselected to meet all operational andpossible fault conditions  AC input Spacious cubicle to connect the ACcables / bus ducts entering from thebottom or top Excitation Control Terminal User-friendly human machine interfacefor easy operation, monitoring andmaintenance of the system The shown UNITROL 6800 SES is designed for Ifn 2882 A,with rated field voltage 585 V and 4192 A ceiling currentfor 10 s. Converter cooling fans Easily replaceable during operationof the system (2 redundant fans asan option) Cubicle protection degree IP31 as a standard, IP54 with integratedair to water heat exchangers uponrequest Cooling air flow System is forced cooled with air-inlet onthe front and air-outlet on top Converter Control Panel Provides actual values, convertercurrent and temperature data, as wellas LED status indication Excitation TransformerWe recommend a cast-coil dry typeexcitation transformer. It has provenits suitability in many installationsand has certain advantages overother types of transformers.Field flashing It enables voltage build-up in case of lowresidual generator voltage Power converter Fully controlled thyristor bridges UNITROL 6800 SES are engineeredand built to meet the individualoperational and environmental condi-tions as well as international and localstandards. All systems undergo a100% functional test before leavingthe factory. SystemUNITROL ® 6800


May 5, 2018

Notas Morris

May 5, 2018
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