GE IS215VPROH1B (VPRO) Mark VI independent overspeed protection module for gas turbine

1、 Basic Information
Full name of model: IS215VPROH1B (abbreviated as VPRO, upgraded derivatives: IS215VPROH1BH, IS215VPROH1BD)
System: GE Speedtronic Mark VI Gas/Steam Turbine Control System (P Protection Rack Specific)
Product positioning: Independent triple redundant emergency trip protection card, physically separated from the main control CPU, independent circuit overspeed protection
Substitution relationship: Replace the old IS215VPROH1A, with fully compatible pins, wiring, and programs for direct conversion
2、 Core function (hard protection of the unit, independent of the main control)
Emergency overspeed EOS protection (most critical): Three speed signals with two out of three logic, overspeed directly drives the trip solenoid valve to shut down, independent of system main control faults
Emergency shutdown ESD, overspeed differential protection, synchronous fault backup protection
Temperature measurement acquisition: 9-channel thermocouple input (gas turbine exhaust over temperature protection)+3-channel analog current signal acquisition
Trip circuit drive: Control the unit trip solenoid valve by outputting 125VDC through the matching terminal board TREG/TRPG; Onboard 12 relays, 9-way triple redundant group drive with 3 sets of trip valves
Communication: Onboard network port IONet, data exchange with Mark VI main control card, fault upload to upper computer

3、 Electrical and hardware parameters
table
Project parameters
Power supply+12VDC, 900mA, VME backplane power supply
Occupying 4 slots in the VME rack, with a double-layer board structure (upper small board IS200VPRW)
Weight ≈ 2.26kg (5 pounds)
Panel interface J3/J4/J5/J6 terminals are connected to TREG terminal board, J7 is a 125VDC power port, Ethernet port, and status LED indicator lights (14 diagnostic lights)
Working temperature -40 ℃~+70 ℃, with three proof coating PCB
Redundancy configuration standard configuration includes 3 VPRO (R8/S8/T8) of the same model with triple redundancy voting. Single block failure does not affect the unit protection logic
4、 List of supporting accessories
Terminal board: IS200TREG (trip relay terminal), IS200TPRO (signal terminal), with matching cables directly connected to VPRO panel interface
Trip solenoid valve: 125VDC DC trip valve, TREG provides positive and negative power output
5、 Shutdown&Supply Status
The original factory has ceased production, and GE has upgraded its Mark VIe system; Market new inventory, mainly consisting of dismantled and refurbished spare parts
Compatible replacements: IS215VPROH1BH (H revision), IS215VPROH1BD (D revision) have universal hardware pins and program interoperability
6、 Application scenarios
GE F5/F6/F7E series gas turbines, industrial steam turbines, cogeneration units, oil and gas pipeline compressor units, Mark VI control cabinet P protection rack standard with safety cards