SPECIFICATIONS
Part No.: IS200TRPAH2AFD
Manufacturer: General Electric
Country of Manufacture: United States of America (USA)
MPU pulse rate range: 2 Hz to 20 kHz
MPU pulse rate accuracy: 0.05 percent of reading
MPU input circuit sensitivity: 27 mV pk
Size: 33.0 cm high x 17.8 cm , wide
Technology: Surface mount
Temperature: -30 to 65oC
Product Type: Turbine Primary Trip Terminal Board
Availability: In Stock
Series: Mark VIe
Functional Description
IS200TRPAH2AFD is a Turbine Primary Trip Terminal Board developed by GE. It is a part of Mark VIe control system. The Aeroderivative Turbine Primary Trip terminal board is a component that interfaces with the PTUR turbine I/O packs or the TTUR terminal board within the Mark VIe system. Its inputs and outputs are designed to facilitate precise monitoring and control of turbine operations.
Features
- Speed Sensing Inputs: It accommodates twelve passive pulse rate devices, distributed as four per R/S/T section. These devices are utilized for sensing a toothed wheel to measure turbine speed accurately. Alternatively, in TMR (Triple Modular Redundant) sections, six active pulse rate inputs are utilized, with two per section.
- Trip Coil Output Contacts: Two TMR-voted output contacts are available on the board, designated for the main breaker coil trip coil. These outputs, operating at either 24 V DC (H1) or 125 V DC (H2), facilitate the reliable and synchronized tripping of the main breaker coil in response to specified conditions or triggers.
- Voltage Detection Circuits: Four voltage detection circuits are integrated into the board, designed to monitor the trip string effectively. Operating within the voltage range of 24-125 V DC, these circuits continuously monitor the trip string for any deviations or abnormalities that may require intervention or corrective action.
- Fail-Safe ESTOP Input: It features a dedicated Fail-safe ESTOP (Emergency Stop) input, operating within the voltage range of 24-125 V DC. This input is crucial for initiating the removal of power from trip relays in emergency situations or when immediate turbine shutdown is necessary for safety reasons.
Installation
- Wiring to I/O Terminal Blocks TB1 and TB2: Components such as TTL pulse rate pickups, voltage detection circuits, E-STOP inputs, and the breaker relay are wired to the I/O terminal blocks TB1. Passive pulse rate pickups are specifically wired to TB2. Each terminal block is secured with two screws and features 24 terminals capable of accepting wires up to #12 AWG in size. To ensure proper grounding and minimize electrical interference, a shield termination strip is attached to chassis ground, positioned immediately to the left of each terminal block.
- Configuration of Speed Input Connections: It must be configured for the desired speed input connections based on specific requirements. This configuration involves selecting the appropriate fanning of the R section pulse rate pickups to the S and T PTURs. Jumpers JP1 and JP2 are utilized for this purpose. These jumpers facilitate the selection of fanning configurations, ensuring that the pulse rate pickups are correctly distributed between the R, S, and T sections of the PTURs according to the desired setup.
- Testing and Validation: Once the wiring and configuration are complete, thorough testing and validation procedures should be carried out to ensure the proper functionality and integration of the terminal board within the system. Testing should include verifying the correct operation of speed sensing inputs, voltage detection circuits, E-STOP functionality, and breaker relay operation, among other components.
System Design
- Configuration with TTUR Terminal Board and PTUR I/O Packs:
- In this configuration, the terminal board is utilized alongside a TTUR terminal board, which holds three PTUR (Primary Turbine) I/O packs.
- Connection between TRPA and TTUR boards is established using three cables, each equipped with DC-37 pin connectors on both ends. These cables facilitate seamless communication and data exchange between the TRPA and TTUR boards.
- The TRPA board in this mode of operation provides specific functionalities, including:
- Two contact-voted trip relay outputs: These outputs are crucial for initiating coordinated shutdown procedures or protective actions in response to predetermined conditions or triggers.
- ESTOP functionality: An Emergency Stop (ESTOP) input is included, enabling rapid shutdown of the system in emergency situations to prevent potential hazards or damages.
- Four voltage sensors: These sensors continuously monitor voltage levels within the system, providing valuable feedback for condition monitoring and fault detection purposes.
- It's important to note that in this configuration, the speed inputs of the TRPA board are not active and should not be connected. The TTUR board provides the necessary speed sensing inputs and functionalities required for turbine operation.
- Normal Features Provided by TTUR Terminal Board:
- The TTUR terminal board offers a comprehensive set of features and functionalities tailored for turbine control and monitoring applications.
- While the board complements the TTUR board by providing specific trip relay outputs, ESTOP functionality, and voltage sensors, the TTUR board remains responsible for managing speed inputs and other essential turbine-related functions.
- By leveraging the combined capabilities of the TRPA and TTUR boards, users can ensure comprehensive control, protection, and monitoring of aeroderivative turbines, enhancing operational safety and reliability.
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 IS200TRPAH2AFD?
It is a turbine primary trip terminal board developed by GE under the Mark VIe series.
What is the purpose of monitoring feedback from the shorted contact detector?
The shorted contact detector feedback is monitored to detect any anomalies or malfunctions in the control signal. If there is a problem with the control signal, an alarm is generated to alert operators or maintenance personnel. This ensures timely identification and resolution of control signal issues to maintain system integrity and safety.
Why is feedback from the ESTOP/TRP input checked?
Feedback from the Emergency Stop (ESTOP) or Trip (TRP) input is crucial for ensuring the proper functioning of safety mechanisms. Monitoring this feedback allows the system to detect any abnormalities or faults in the signal. If a problem is detected, a fault is generated, prompting immediate attention and corrective action to address the issue and ensure the effectiveness of safety measures.
What is the purpose of monitoring feedback from the speed pickup fanning jumpers?
Feedback from the speed pickup fanning jumpers is monitored to verify the alignment between the intended and actual positions. Any mismatch between the intended configuration and the actual position of the jumpers could indicate a misconfiguration or wiring error. In such cases, an alarm is generated to alert operators, enabling prompt investigation and correction to ensure accurate speed sensing and system operation.
