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Is200trpah1b

IS200TRPAH1B - Primary Trip Terminal Board

IS200TRPAH1B - Primary Trip Terminal Board IS200TRPAH1B - Primary Trip Terminal Board

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SPECIFICATIONS

Part No.: IS200TRPAH1B
Manufacturer: General Electric
Manual: GEH-6721D
Size: 33.0 cm high x 17.8 cm wide
Technology: Surface mount
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
Availability: In Stock
Country of Manufacture: United States (USA)

Functional Description

IS200TRPAH1B is an Turbine Primary trip terminal board developed by GE. It is a part of Mark VIe control system. The turbine primary trip terminal board is designed to seamlessly integrate with the PTUR turbine I/O packs or the TTUR terminal board, serving as an integral part of the advanced Mark VIe control system. This board plays a critical role in managing various inputs and outputs, ensuring the safe and reliable operation of the turbine.

Features

  • Passive Pulse Rate Devices: The terminal board accommodates 12 passive pulse rate devices, with four dedicated to each R/S/T section of the turbine. These devices work by sensing toothed wheels to measure the turbine's rotational speed accurately. By monitoring the pulse rate, the board can assess the turbine's performance and ensure its optimal operation.
  • Active Pulse Rate Inputs: Alternatively, the board also supports six active pulse rate inputs, with two inputs allocated to each TMR (Triple Modular Redundant) section. These active inputs provide an alternative method for measuring turbine speed, enhancing the redundancy and reliability of speed measurement in TMR systems.
  • TMR Voted Output Contacts: The board is equipped with two sets of output contacts, either 24 V DC (H1) or 125 V DC (H2), which are TMR voted. These contacts are connected to the main breaker coil responsible for initiating the turbine trip coil. This crucial functionality ensures swift and precise response during critical situations, such as emergency shutdowns.
  • Voltage Detection Circuits: To enhance safety and monitor the turbine trip string, the terminal board incorporates four 24-125 V DC voltage detection circuits. These circuits continuously monitor the voltage levels, providing crucial feedback on the status of the trip string.
  • For TMR systems, the signals originating from the board fan out to multiple connectors, including PR3, PS3, PT3, JR4, JS4, and JT4 connectors. This distributed arrangement allows for efficient and reliable communication with other connected components, enabling seamless coordination within the TMR system.

Installation

  • TTL Pulse Rate Pick-ups (TB1): The TTL pulse rate pick-ups, responsible for turbine speed sensing, are connected to terminal block TB1. These sensors provide real-time feedback on turbine rotational speed, facilitating precise monitoring and control.
  • Voltage Detection Circuits (TB1): Voltage detection circuits, monitoring trip string voltage, are also wired to terminal block TB1. Continuously monitoring voltage levels ensures crucial data for the system's safety and protection mechanisms.
  • E-STOP Connection (TB1): The E-STOP function, a critical emergency stop feature, is wired to terminal block TB1. This connection enables rapid and safe turbine shutdown during emergencies to prevent hazards or damages.
  • Breaker Relay (TB1): The breaker relay, essential for controlling the main breaker coil, is wired to terminal block TB1. This relay ensures reliable and swift response during trip coil operation, facilitating immediate turbine shutdown when required.
  • Passive Pulse Rate Pick-ups (TB2): Terminal block TB2 hosts the passive pulse rate pick-ups, dedicated to measuring turbine speed in each R/S/T section. These devices provide accurate speed feedback for each turbine section.
  • Secure Installation: Each terminal block (TB1 and TB2) is securely held in place with two screws, ensuring stable connections resistant to vibrations or movements.
  • Terminal Block Features: Each terminal block features 24 terminals accepting wire sizes up to #12 AWG, facilitating easy and convenient wiring connections. A shield termination strip, attached to chassis ground, minimizes interference.
  • Configuration Options: Users can refer to a specific table for guidance on settings. Jumpers JP1 and JP2 allow selecting the fanning of R section pulse rate pickups to S and T PTURs, enabling flexible customization based on operational requirements.

System Design: Board Functionality

  • The TRPA (Turbine Remote Protection Auxiliary) board is engineered to offer versatile functionality adaptable to various configurations. Primarily, it accommodates two distinct application scenarios, each tailored to specific operational requirements and configurations.
  • Configuration with TTUR Terminal Board and PTUR I/O Packs:
    When integrated with a TTUR (Turbine Trip Unit Rack) terminal board housing three PTUR (Programmable Turbine Trip Unit) I/O packs, the TRPA terminal board connection is established using three cables equipped with DC-37 pin connectors on each end. In this operational mode:
    • Trip Relay Outputs: The TRPA board delivers two contact voted trip relay outputs, ensuring robust and reliable trip signal transmission for critical safety functions.
    • Emergency Stop (ESTOP): Additionally, the TRPA facilitates an emergency stop function, providing an immediate shutdown mechanism in emergency scenarios, bolstering operational safety.
    • Voltage Sensors: Four voltage sensors are incorporated into the TRPA board, enabling precise monitoring of voltage levels to ensure stable and reliable system operation.
    • TTUR Compatibility: The TTUR terminal board seamlessly integrates with the TRPA setup, providing its standard set of features and functionalities as described for that specific board.
  • Inactive Speed Inputs: It's important to note that the speed inputs on the TRPA board remain inactive in this configuration and should not be connected. This ensures proper functionality and prevents potential interference with system operation.

World of Controls has the most comprehensive collection of GE Mark VIe components. Please contact WOC as soon as possible if you require any extra information.

Frequently Asked Questions

 

What is IS200TRPAH1B?
It is a Turbine Primary trip terminal board developed by GE

How does the terminal board ensure rapid and precise turbine shutdown during emergencies?
The terminal board is equipped with two sets of TMR voted output contacts, operating at either 24 V DC. These contacts are connected to the main breaker coil, enabling swift and precise response during turbine trip coil activation, ensuring a rapid shutdown when required.

What is the role of the voltage detection circuits on the terminal board?
The terminal board features four 24-125 V DC voltage detection circuits responsible for monitoring the trip string voltage. These circuits continuously monitor the voltage levels, providing essential feedback to ensure the safe and reliable operation of the turbine trip string.

How are the signals distributed in TMR systems?
For TMR systems, the signals fan out to multiple connectors, including PR3, PS3, PT3, JR4, JS4, and JT4 connectors. This distributed arrangement allows for efficient and reliable communication with other connected components, enabling seamless coordination within the TMR system.