GE IS200TRPGH1BDE TERMINATION RELAY
Delivery time 3 days
Product origin New/used
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The IS200TRPGH1BDE is the primary trip relay board for the GE Speedtronic Mark V
The IS200TRPGH1BDE is the primary trip relay board for the GE Speedtronic Mark VI series steam turbine control system. Belonging to the TRPG series core safety interface module, it is specifically designed for emergency trip (ETD) and flame detection circuits in gas turbines and steam turbines, serving as a critical hardware node in the system's safety protection chain.
Core Positioning and Architecture: This board serves as the Primary Trip terminal for the Mark VI system, connecting the control system to field emergency trip solenoid valves, flame detectors, and other safety devices. It implements triple-redundant voting logic to ensure rapid and reliable triggering of trip protection in case of faults. Utilizing multi-layer PCB and SMD technology, it integrates multiple relays and signal conditioning circuits, enabling field wiring through dual sets of large terminal blocks, supporting hot-swapping and online maintenance.
Key Specifications and Electrical Characteristics: Core Relay Configuration: It incorporates 9 electromagnetic relays, forming 3 sets of triple-voting circuits to drive 3 trip solenoid valves (ETD), meeting SIL-level safety redundancy requirements.
Trip Solenoid Valve Interface: Supports 3-channel 125 VDC trip solenoid valves with a response time constant of 0.1 seconds and built-in metal oxide varistors (MOVs) for surge suppression.
Flame Detection Interface: Provides 8-channel power and signal interfaces for Geiger-Mueller flame detectors, outputting a dedicated 335 VDC detection voltage, suitable for gas turbine combustion chamber flame monitoring.
Control Power Supply: Relay coil power supply is 28 VDC, compatible with the Mark VI system standard power architecture.
Physical and Environmental Considerations: Dual-terminal block design (terminals 1–48), operating temperature -20℃ to +55℃, industrial-grade vibration and electromagnetic interference resistant, meeting the continuous operation requirements of power plants.
System Connection: Communicates with the Mark VI main controller (TBCI) via a dedicated backplane, forming a complete trip circuit in conjunction with the TREG terminal board.
Core Functions and Safety Advantages
Triple Redundancy Voting: Three sets of relay circuits implement 2/3 voting logic, ensuring that a single channel failure does not affect the tripping function, maximizing safety and reliability.
High-Speed Trip Response: Solenoid valve action time < 0.1 seconds, ensuring rapid fuel cut-off under abnormal operating conditions and preventing equipment damage.
Independent Safety Circuit: Completely isolated from the control system's low-voltage circuits, preventing safety circuit failure due to control unit malfunctions.
Integrated Flame Monitoring: Directly drives the flame detector, monitoring the combustion chamber flame status in real time, triggering tripping protection when there is no flame.
Convenient Maintenance: Detachable terminals and hot-swappable design support online replacement, reducing downtime.
Typical Application Scenarios
Gas Turbine Main Protection: Drives the fuel valve tripping solenoid valve, monitors the combustion chamber flame, and provides emergency protection against overspeed, over-temperature, and flameout.
Steam Turbine Safety System: Connects to the main steam valve and regulating valve tripping circuits, participating in the unit's ESD (Emergency Self-Driving) system.
Power Plant Combined Cycle Units: Integrated into the tripping and flame detection control chain of the gas-steam combined cycle system.
Industrial Drive Turbines: Used as a safety protection terminal for compressors, pump sets, and other turbine drives.
System Compatibility: Fully compatible with GE Mark VI and Mark VIe control systems, adaptable to VME racks, and works in conjunction with TREG, VCRC, and other I/O modules.
As the main trip terminal, it forms a complete safety protection system with Mark VI protection controllers, speed sensors, pressure switches, etc.
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