GE IS200VTURH2BAB Turbine Protection Circuit Board

Description

The GE IS200VTURH2BAB Turbine Protection Circuit Board is a specialized component from the Mark VI series, designed to deliver comprehensive safety and monitoring for turbine systems. Its core functions include main trip control: it manages three main overspeed trip relays on the TRPx terminal board, receives trip signals to trigger emergency solenoid valves, and ensures safe turbine shutdown during hazardous conditions such as overspeed. The board also offers flame monitoring, supporting 8 flame detector inputs to real-time track combustion status and prevent flameout or deflagration incidents. For rotor health, it provides shaft voltage and current monitoring, picking up shaft voltage via brushes and combining it with housing current readings to diagnose rotor ground faults or insulation degradation. Additional key features include automatic synchronization and circuit breaker control, which collaborates with excitation systems to enable automatic generator synchronization and main circuit breaker closing, simplifying grid connection operations. It also performs speed measurement and overspeed protection by connecting 4 passive pulse rate devices to measure turbine speed and generate primary overspeed trip signals. The board supports Triple Modular Redundancy (TMR) or simplex configurations to enhance system reliability, with input signals including 8 flame detector signals, shaft voltage/current, and turbine speed pulses.