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Is230sturh2a

IS230STURH2A - Input Terminal Board

IS230STURH2A - Input Terminal Board IS230STURH2A - Input Terminal Board

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SPECIFICATIONS

Part Number: IS230STURH2A
Manufacturer: General Electric
Series: Mark VIe
Function: Primary Turbine Protection Input Terminal Board
Availability: In Stock
Size: 15.9 cm high x 17.8 cm, wide
Technology: Surface mount.
Temperature: -30 to +65 degrees Celsius
Humidity: 5 to 90 percent non-condensing
Cooling: Free air convection
Product type: PCB
Country of Manufacture: United States (USA)

Functional Description

IS230STURH2A is a Simplex Primary Turbine Protection Input Terminal Board developed by GE. It is a part of Mark VIe control system. The Simplex Primary Turbine Protection Input (STUR) terminal board is designed as a simplex S-type terminal board, specifically derived from the turbine terminal board (TTUR). The STUR terminal board serves multiple purposes and provides crucial connections for the turbine-specific primary trip (PTUR), speed, and synchronizing inputs, as well as trip relay outputs or a cable to drive a primary trip board.

Features

  • The terminal board maintains consistency with other S-type terminal boards. It shares the same physical size, customer terminal locations, and I/O pack mounting, ensuring compatibility and ease of integration within existing systems.
  • Designed in a manner that ensures no components protrude higher than an attached PTUR I/O pack. This feature allows for the double stacking of terminal boards, optimizing space utilization and system flexibility.
  • It provides the necessary connections and inputs for turbine-specific primary trip, speed, and synchronizing functions. With its compatibility and flexible design, the STUR terminal board ensures efficient and reliable operation of turbine systems while allowing for easy integration and space optimization.

Applications

  • Mechanical Drives with Overspeed Protection: In certain mechanical drive systems, it is necessary to have overspeed protection without the need for synchronizing functionality. The STUR board accommodates this requirement by offering the necessary connections for the primary trip (PTUR) and speed inputs, ensuring reliable and effective overspeed protection.
  • Generator Drive Systems with Overspeed and Primary Synchronization: In generator drive systems, overspeed protection and primary synchronization are crucial aspects. The STUR terminal board facilitates these functions by providing connections for overspeed protection (PTUR), speed inputs, and synchronizing inputs. This enables the board to ensure safe operation by monitoring turbine speed and synchronizing it with the electrical grid during generator startup or reconnection.
  • Other Applications with PTUR Pulse Input Circuits: Apart from the aforementioned specific applications, the STUR terminal board also proves useful in various other scenarios that require the utilization of the four pulse input circuits provided by the primary trip (PTUR). These applications may vary, but the STUR board can efficiently handle the necessary connections and inputs for precise control and monitoring.

Characteristics

  • DC-62 Pin Connector for PTUR I/O Pack: The STUR terminal board is equipped with a DC-62 pin connector specifically designed for mounting a single PTUR (Primary Turbine Protection) I/O pack. This connector ensures a secure and reliable connection between the board and the I/O pack, enabling seamless communication and control.
  • Four-Speed Input Signals: The STUR terminal board is designed to accept up to four-speed input signals. These speed input signals are crucial for monitoring and controlling the turbine's rotational speed. By accommodating multiple speed inputs, the board enables comprehensive speed monitoring and overspeed protection.
  • 48 Terminal Euro-Style Box Connector: To facilitate connection points, the STUR terminal board provides a 48-terminal Euro-style box connector. This connector serves as a centralized interface for customer connections, allowing for convenient and organized wiring between the terminal board and external components or devices.
  • Two Trip Solenoid Outputs (K1 and K2): The STUR terminal board features two trip solenoid outputs, namely K1 and K2. Each of these trip solenoid outputs is composed of a safety relay (H1, H2). These outputs are responsible for controlling the trip solenoids that initiate protective actions, such as activating the turbine trip circuit, in the event of abnormal conditions or overspeed situations.
  • DC-37 Pin Connector for Primary Trip Relay: The STUR terminal board provides a DC-37 pin connector specifically designed for connecting a primary trip relay (TPRG, TPRL, TPRS, or TPRA). This connector ensures proper and secure communication between the terminal board and the primary trip relay, which plays a vital role in executing protective actions during critical situations.
  • Two PT Inputs for Primary Synchronization: The STUR terminal board accepts two PT (Potential Transformer) inputs, designated as H2 and H4, to support primary synchronization. These inputs allow the terminal board to receive generator voltage and bus voltage signals, which are crucial for synchronizing the turbine with the electrical grid or other power sources during startup or reconnection.
  • Two Relay Outputs for Primary Synchronization: In addition to the PT inputs, the STUR terminal board provides two relay outputs, designated as H2 and H4, to support primary synchronization functions. These relay outputs, controlled by relays K25 and K25P, are responsible for closing and providing the required 125 V dc power needed to close the main breaker 52G. The synchronization process ensures a safe and smooth connection between the turbine and the electrical grid.

WOC is happy to assist you with any of your GE requirements. Please contact us by phone or email for pricing and availability on any parts and repairs.

FREQUENTLY ASKED QUESTIONS

What is IS230STURH2A?
It is a Simplex Primary Turbine Protection Input Terminal Board developed by GE.

What is the purpose of the DC-37 Pin Connector on the board?
The DC-37 Pin Connector is specifically designed for connecting a primary trip relay (TPRG, TPRL, TPRS, or TPRA). This connector facilitates proper and secure communication between the terminal board and the primary trip relay, which is responsible for executing critical protective actions during various turbine operating conditions.

How do the PT Inputs (H2 and H4) support primary synchronization?
The board accepts two PT (Potential Transformer) inputs, H2 and H4, to support primary synchronization. These inputs receive generator voltage and bus voltage signals from potential transformers.

What role do the Relay Outputs (H2 and H4) play in primary synchronization on the board?
These relay outputs, controlled by relays K25 and K25P, ensure the closure and provision of the required 125 V dc power needed to close the main breaker 52G. This synchronization process guarantees a safe and smooth connection between the turbine and the electrical grid, allowing for efficient power transfer.