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ABB 3BHE050077R0102 UNS0881B-PV2｜Control Board｜
Core functionality
Multi channel isolated power output
Provide * * ± 15V,+24V,+5V * * isolated power supply for excitation main control (such as GFD563), I/O board, and pulse amplification board
Overcurrent/overvoltage/short circuit protection, redundant design, ensuring uninterrupted excitation operation
Excitation signal conditioning and isolation
High precision sampling, isolation, and amplification of terminal voltage/current and excitation current/voltage
Signal filtering and anti-interference, compatible with thyristor rectifier bridge triggering synchronous signal
Pulse amplification and driving
Output thyristor (SCR) trigger pulse, strong driving capability, ensuring reliable conduction
Pulse interlocking and fault detection to prevent false triggering and bridge arm direct connection
System monitoring and diagnosis
Real time monitoring of power status, signal abnormalities, and pulse loss
Fault relay output, LED indicator light, local diagnostic interface
Application
UNITROL 5000 excitation system (synchronous generator for thermal power/hydropower/gas turbine)
AC800PEC platform LCI inverter excitation interface matching
Large generator static excitation cabinet (thyristor rectifier excitation)
Power electronic control scenarios that require high reliability, high isolation, and strong anti-interference
ABB 3BHE050077R0102 UNS0881B-PV2｜Control Board｜
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