IS200TRPGH1ACB - Primary Trip Termination Board

SPECIFICATIONS

Part No.: IS200TRPGH1ACB
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
Trip solenoids: 3
Flame detectors: 8
Temperature: -30 to + 65oC
Product Type: Primary Gas Turbine Trip Output Board
Availability: In Stock
Series: Mark VIe

Functional Description

IS200TRPGH1ACB is a Primary Gas Turbine Trip Output board developed by GE. It is a part of Mark VIe control system. The Primary Gas Turbine Trip Output board works alongside the TREG to establish both the primary and emergency sides of the interface to the ETDs, ensuring reliable and redundant control mechanisms. The terminal board features nine magnetic relays organized into three voting circuits. These relays play a vital role in interfacing with the trip solenoids of the ETDs, providing essential control functions for trip actions. The use of multiple relays in voting circuits enhances system reliability and redundancy, ensuring that trip actions are initiated accurately and consistently.

Features

• In conjunction with the TREG, the TRPG forms the primary and emergency sides of the interface to the ETDs. This collaborative effort establishes a robust and dependable control system for managing trip actions in critical applications. By working together, the TRPG and TREG ensure that trip signals are transmitted effectively and redundantly, minimizing the risk of failure or malfunction.
• In addition to its role in the trip device interface, the terminal board accommodates inputs from eight Geiger-Muller flame detectors. These detectors are essential for gas turbine applications, providing early detection of flame presence or anomalies. By integrating flame detection capabilities, the TRPG enhances safety and operational efficiency in gas turbine environments, allowing for prompt response to potential fire hazards.
• The use of three voting circuits with multiple relays enhances system reliability and redundancy, ensuring accurate and consistent trip actions in critical situations.
• Working in tandem with the TREG, the TRPG establishes a robust primary and emergency interface to the ETDs, providing redundant control mechanisms for enhanced safety and reliability.
• The TRPG's capability to accommodate inputs from flame detectors enhances safety in gas turbine applications by enabling early detection of potential fire hazards, and facilitating timely response and mitigation efforts.
• The terminal board finds application in various industries where a reliable trip device interface and flame detection are critical. It is commonly utilized in power generation plants, chemical processing facilities, and industrial manufacturing environments where the safety and reliability of trip actions are paramount. Additionally, its integration with flame detectors makes it particularly suitable for gas turbine applications, where early detection of flame presence is essential for preventing catastrophic events.

Installation Guidelines

• Wiring Trip Solenoids and Flame Detectors: To begin the installation process, wire the three trip solenoids directly to the first I/O terminal block on the terminal board. Ensure that the wiring is securely connected to the appropriate terminals on the terminal block to facilitate reliable operation. For installations incorporating flame detectors, connect them to the second terminal block on the terminal board. Again, ensure that the wiring is securely connected to the designated terminals on the terminal block to facilitate proper detection and response to flame presence or anomalies.
• Power Supply for Flame Detectors: For the flame detectors, power them by wiring to connectors J3, J4, and J5 on the TRPG terminal board. Ensure that the power supply connections are made securely to these connectors to provide consistent power to the flame detection system, enhancing its reliability and effectiveness.
• Power Supply for Trip Solenoids: Provide 125 V DC power supply for the trip solenoids by wiring to connector J1 on the TRPG terminal board. Ensure that the power supply connections are made securely to this connector to ensure reliable operation of the trip solenoids, which are critical components in the trip device interface system.
• Power Transfer to TREG Board: Facilitate power transfer to the board by wiring connector J2 on the terminal board. This ensures that the TREG board receives the necessary power supply to function effectively in conjunction with the TRPG terminal board. Ensure that the wiring connections to connector J2 are secure to maintain uninterrupted power transfer to the board.
• Final Checks: Before completing the installation, perform thorough checks to ensure that all wiring connections are secure and properly made. Double-check the wiring configuration against the installation manual or diagram provided with the terminal board to verify that each component is correctly connected. Additionally, ensure that power supply connections are made according to the specified requirements to avoid potential issues during operation.
• Testing and Commissioning: Once the installation is complete, perform testing and commissioning procedures to verify the functionality and performance of the TRPG terminal board and associated components. Test the trip solenoids, flame detectors, and power transfer to the TREG board to ensure that they operate as intended and respond effectively to simulated scenarios. Conduct any necessary adjustments or fine-tuning to optimize system performance before putting it into full operation.

Operation

• Primary Trip Function Control: The terminal board is primarily responsible for controlling the relays that initiate trip actions for main protection solenoids. These relays, under the command of the TRPG board, act as the primary mechanism for triggering critical protective measures in response to predefined conditions or events detected by the control system.
• Triple Modular Redundancy (TMR) Applications: In scenarios where redundancy and fault tolerance are paramount, such as in Triple Modular Redundancy (TMR) applications, the board utilizes a relay ladder logic two-out-of-three voting circuit. This hardware-based voting circuit ensures that trip actions are only executed when a consensus is reached among the three input signals. By implementing redundancy in this manner, the system can withstand the failure of a single input circuit without compromising its ability to initiate trip actions reliably.
• Monitoring and Diagnostic Capabilities: The I/O board, in conjunction with the terminal board, incorporates monitoring and diagnostic capabilities to ensure the reliability and integrity of trip operations. The I/O board monitors the current flow in its relay driver control line, allowing it to determine the energize or de-energize status of the relay coil contacts accurately. Additionally, supply voltages are continuously monitored for diagnostic purposes, enabling the detection of any abnormalities or fluctuations that may affect system performance.
• Diagnostics for Proper Relay Operation: To further enhance diagnostic capabilities, features normally closed contacts associated with each relay. These contacts are monitored by the diagnostics to assess their proper operation. Any deviation from expected behavior, such as a failure to close or open when commanded, triggers diagnostic alerts, allowing for timely intervention and corrective measures to maintain system reliability.
• Ensuring System Reliability and Safety: By providing robust control over trip functions and incorporating advanced diagnostic features, the board contributes to the overall reliability and safety of the control system. Its ability to accurately initiate trip actions, even in TMR applications, ensures that critical protective measures are activated promptly and effectively, minimizing the risk of equipment damage or operational disruptions.
• Troubleshooting and Maintenance: In the event of operational issues or anomalies, system operators can utilize the diagnostic information provided by the TRPG terminal board to troubleshoot and address any underlying issues. This may involve inspecting relay contacts, verifying supply voltages, or conducting further diagnostic tests to pinpoint the root cause of the problem. By proactively monitoring and maintaining, system reliability and uptime can be maximized, ensuring uninterrupted operation of critical processes.

The WOC team is always available to help you with your Mark VIe requirements. For more information, please contact WOC.

Frequently Asked Questions

What is IS200TRPGH1ACB?
It is a primary gas turbine trip output board developed by GE under the Mark VIe series.

How does the terminal board function in the trip operation?
The terminal board plays a crucial role in trip operation by controlling the relays that trip the main protection solenoids. These relays are activated based on signals received from the I/O board, which serves as the primary control unit for trip functions.

What is the significance of TMR applications in trip operation?
In Triple Modular Redundancy (TMR) applications, the three inputs to the TRPG terminal board are voted in hardware using a relay ladder logic two-out-of-three voting circuit. This redundancy ensures that trip actions are initiated accurately and reliably, even in the event of a failure in one of the input circuits.

How does the I/O board determine the vote/status of the relay coil contact?
The I/O board monitors the current flow in its relay driver control line to determine the energize or de-energize vote/status of the relay coil contact. By analyzing the current flow, the I/O board can accurately assess the operational status of the relay coil and determine whether it should be activated or deactivated.