IS200TRPGH2B I/O excitation redundant module GE

IS200TRPGH2B Product Introduction

3.2 Upgrading of regulators and control systemsFor the upgrade of the regulator, the original excitation control system cabinet structure is retained, and the entire system is upgraded by upgrading the board card. Among them, the CoB main board, MUB measurement board, F10 input and output board, and LCP local control panel were replaced with the PEC800 controller, CCM measurement control interface board, CIo comprehensive input and output board, and ECT excitation system control terminal in the Unitrol6800 system respectively.For the upgrade of the power cabinet, since the power of the excitation system will not change during the transformation, the N-1 redundant configuration of the five UNL3300 rectifier bridges in the original system has not been changed, but the control and measurement parts of the rectifier bridge have been upgraded. And the fan circuit and power control part of the rectifier bridge have been upgraded. Among them, the signal interface board (PsI) was changed to the rectifier bridge signal interface board (CsI), the circuit breaker of the rectifier bridge panel was changed from CDP to CCP, and the rectifier bridge control interface board (CIN) was changed to the rectifier bridge control board (CCI).For the upgrade of the demagnetization cabinet, the switch control part was mainly upgraded. By adding a CIo board to the switch cabinet and installing a special power distributor and relay to control the demagnetization switch, the original PsI board was removed. Secondly, in the transformation of the current detection part, the Hall element in the Unitrol5000 system was replaced by the current relay of the Unitrol6800 system.For the upgrade of the excitation current measurement part, the rectifier side Hall element of the rectifier bridge was replaced with an AC side CT. Relying on the linearity of the CT, the current sharing coefficient of the excitation system was increased to 0.98, so that the role of the rectifier bridge can be fully exerted in the system. . For the upgrade of the fan power supply circuit of the rectifier cabinet, each power cabinet can independently control the power supply of the fans in the cabinet to avoid the problem that if the power circuit relay fails in the original system, all the fans will not work.3.3Unitrol6800 functional logic configuration pointsThe Unitrol6800 system adds PT slow-blow judgment logic, and defines the actions of PT slow-blow as alarm and channel switching. The system PT slow-blow logic pressure difference is 2% to ensure sufficient sensitivity. Since some external reasons will cause the sequential increase or decrease of magnetic commands, a special increase or decrease magnetic contact adhesion judgment logic has been added to effectively lock out external causes. At the same time, it can avoid the jitter of the relay on the increase or decrease magnetic circuit and ensure the stability of the circuit. The excitation temperature detection is used to alarm in the system, but it cannot control the system tripping. The tripping intermediate relays K291 and K292 use high-power (≥5w) relays to avoid the problem of tripping of the excitation system due to signal interference.4 Problems discovered during the transformation and their solutionsAfter upgrading the excitation system from Unitrol5000 to Unitrol6800, since the partition between the regulator cabinets of the original excitation switch cabinet was removed and the mounting backplate of the regulator was moved forward, the hot air from the excitation switch cabinet will enter the excitation regulator cabinet, causing the cabinet to be damaged. The internal temperature rises, and sometimes the temperature can even reach 45°C. In order to avoid problems caused by high temperatures, partitions were added to reduce the temperature inside the switch cabinet and control the temperature to 30°C.During the maintenance process, if the grounding carbon brush of the generator is removed, it is easy to cause the rotor grounding relay isoLR275 to malfunction. Therefore, during maintenance, the power supply of the grounding relay will be disconnected and the large shaft in the magnetic cabinet will be short-circuited.5 ConclusionThrough the transformation of the excitation system, our company not only meets the needs of increasing the generator capacity, but also eliminates the safety hazards of ARCnet failure or flat cable damage in the excitation system of the unit. It can find the fault point during maintenance and prevent the unit from non-stop. event. The new board used in the new excitation system has modular characteristics, which can make online maintenance more convenient, and because the boards use trigger pulse generation communication and optical fiber redundant communication, the stability of information transmission is ensured. Avoid communication failures and damage to pulse lines.

DS200PLIBG2ACA From General Electric in the United States
IS200ICIAH1ABB High performance processor module GE
IS200ERDDH1ABA From General Electric in the United States
DS200SHVMG1A I/O excitation redundant module GE
IS200VCMIH1B Gas turbine system Mark VI
IS200VCCCH1B High performance processor module GE
IS410STCIS2A I/O excitation redundant module GE
IS200VVIBH1B Gas turbine system Mark VI
IS210AEBIH1ADB Processor/Controller Mark VI System
DS3820PSCB1C1B From General Electric in the United States
DS200PCCAG7A High performance processor module GE
IS200BPIIH1A Gas turbine system Mark VI
IS215WEMAH1B High performance processor module GE
DS200TCQAG1B Gas turbine system Mark VI
IS230TDBTH6A GE power control board
IS220PPROH1A From General Electric in the United States
IS200DSPXH1D From General Electric in the United States
IS200TBCIH1B From General Electric in the United States
IS220PAOCH1A High performance processor module GE
IS200VCMIH2B GE power control board
IS200ESELH1AAA I/O excitation redundant module GE
IS200PSCDG1A GE power control board
IS215UCVEM08B High performance processor module GE
IS200ICBDH1ABB High performance processor module GE
DS200ACNAG1A Gas turbine system Mark VI
IS200TBAIH1C High performance processor module GE
IS200DSPXH1DBD Gas turbine system Mark VI
IS200ERGTH1AAA From General Electric in the United States
IS200IGPAG2AED Processor/Controller Mark VI System
IS220PAICH1A Gas turbine system Mark VI
IS420UCSCH2A GE power control board
IS420PUAAH1A I/O excitation redundant module GE
DS200TCDAG1PR5A High performance processor module GE
IS200RAPAG1A High performance processor module GE
IS200DAMDG1AAA I/O excitation redundant module GE
IS200EPSMG2ADC GE power control board
IS200HFPAG1A I/O excitation redundant module GE
IS420YDIAS1B I/O excitation redundant module GE
IS200RAPAG1A From General Electric in the United States
IS210AEAAH1B High performance processor module GE
IS210AEAAH1B Gas turbine system Mark VI
DS200SLCCG4A High performance processor module GE
DS200ADMAH1A High performance processor module GE
IS215UCVEM01A High performance processor module GE
IS210MACCH2A High performance processor module GE
IS410JPDHG1A High performance processor module GE
IS215VCMIH2BB From General Electric in the United States
IS220PDIOH1B High performance processor module GE
GDS1168-PFF-PA-NF From General Electric in the United States
IS200IGDMH1AAA Processor/Controller Mark VI System
IS200TVIBH2B Gas turbine system Mark VI
IS220PSCAH1A Gas turbine system Mark VI
IS220PPDAH1A High performance processor module GE
IS420USBH1A I/O excitation redundant module GE
IS410STCIS2A GE power control board
IS200STCIH6AED Processor/Controller Mark VI System
IS200VTURH2BAC Processor/Controller Mark VI System
IS200VRTDH1B Processor/Controller Mark VI System
IS200SRTDH2ACB GE power control board
IS215AEPCH1C Processor/Controller Mark VI System
IS220PAOCH1A Gas turbine system Mark VI
DS200DTBDG1ABB GE power control board
IS420UCSCH1B Gas turbine system Mark VI
DS200PLIBG1ACA High performance processor module GE
IS200SSBAG1A GE power control board
IS200STAOH2AAA GE power control board