IS210TPGSH2B - Primary Trip Terminal Board Assembly

SPECIFICATIONS

Part Number: IS210TPGSH2B
Manufacturer: General Electric
Series: Mark VI
Product Type: Primary Trip Terminal Board
Repair: 3-5 days
Maximum applied V dc: 145 V
Resistor tolerance: 5 percent
Minimum solenoid impedance: 0 ohm
Availability: In Stock
Country of Manufacturer: United States (USA)

Functional Description

IS210TPGSH2B is a Primary Trip Terminal Board developed by General Electrics. It is a part of Mark VI control system. The board monitors current flow in the relay driver control lines to determine the status of relay coils and includes built-in diagnostics to track supply voltages and verify proper relay operation through normally closed contact monitoring, enhancing system safety and reliability.

Features

• Primary Trip Control: Responsible for controlling trip relays that actuate the main protection solenoids. These solenoids are essential for initiating a safe turbine shutdown during fault conditions or system anomalies.
• TMR (Triple Modular Redundant) Configuration: In Triple Modular Redundant (TMR) configurations, which are used for high-reliability systems, the board utilizes a two-out-of-three voting system. This logic ensures that the trip command is only issued when at least two out of the three channels agree, significantly reducing the risk of false trips and improving overall system availability.
• Relay Ladder Logic Voting: The hardware implements relay ladder logic to process trip signals and determine the correct response based on the input status from multiple modules. This logic is key in mission-critical environments where safety and uptime are paramount.
• Current Flow Monitoring: The I/O board monitors current flow in the relay driver control line to determine the status (energized or de-energized) of each relay coil. This functionality provides real-time verification of the command execution.
• High Reliability and Safety Assurance:
  With its integrated hardware voting, real-time monitoring, and detailed diagnostics, the IS210TPGSH2B offers robust safety assurance for critical turbine control applications. It is a key component in achieving safe shutdown sequences, helping to prevent equipment damage and ensure personnel safety.

Diagnostic Capabilities

• Supply voltages to ensure consistent power delivery.
• The normally closed contact of each onboard relay, verifying proper operation and identifying stuck or failed relays.
• Relay coil contact status to confirm whether trip commands are correctly transmitted and acted upon.

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FREQUENTLY ASKED QUESTIONS

What is IS210TPGSH2B?
It is a Primary Trip Terminal Board developed by General Electrics.

Does it support TMR (Triple Modular Redundancy) systems?
Yes, the board supports TMR configurations and uses a two-out-of-three voting logic to ensure accurate and reliable trip decisions across redundant modules.

How does the board detect the status of the trip relays?
It monitors current flow in the relay driver control lines and tracks the relay coil status to determine whether the relay is energized or de-energized.