IS200ESELH1AAA GE EX2100, Exciter Selector Board

Description:
Functional Description

The IS200ESELH1AAA Exciter Selector Board, engineered by General Electric (GE), is an integral component of the EX2100 control system. Positioned within the control rack, it acts as a central hub for managing various control and signaling functions crucial to the excitation system's operation. The board's secure integration with the control rack ensures its stable placement, which is vital for the reliable performance of the exciter system.

Features
- Logic Level Gate Pulse Signals: The board receives six logic level gate pulse signals from the corresponding Master I/O (EMIO) board. These signals are essential for controlling the timing and operation of the exciter.
- Signal Conversion: Upon receiving the gate pulse signals, the board processes these signals to ensure they are correctly formatted and timed for further distribution.
- Cable Distribution: The processed gate pulse signals drive six sets of cables that transmit these signals to the Exciter Gate Pulse Amplifier (EGPA) boards.
- Signal Integrity: The design ensures signal integrity during transmission, preventing degradation or loss that could affect the excitation system's performance.
- Interaction with EGPA Boards: The EGPA boards, mounted in the Power Conversion Cabinet, amplify the gate pulse signals to levels required for driving power devices in the excitation system.
- Power Conversion Cabinet: This cabinet houses the EGPA boards and other related power conversion components, managing high-power electrical signals and converting them into usable forms for the excitation system.

Application Data
- Jumpers and Testpoints: The board is designed without jumpers or testpoints, simplifying its design and reducing potential failure points. This streamlines installation and maintenance.
- Connectors, P1 and P2: These connectors link to the VME (Versa Module Europa) backplane. The specific pin signals for these connectors are not detailed in this document, as they are typically not required during routine troubleshooting. The connectors ensure seamless integration with the overall system architecture, facilitating efficient communication and power distribution.
- Layout: The layout of the ESEL board is optimized for performance and ease of access, illustrated in the accompanying figure, which visually represents the board's components and their arrangement.
- Status Indicators: The board includes three green LEDs on the front panel, providing critical status information and enabling quick visual confirmation of the board's operational state:
  - Power Indicator: Illuminates to indicate that the board is receiving power, confirming correct installation and electrical connection, ready for operation.
  - Board Active Indicator: Lights up when the board is active, signifying that it has been enabled by a control signal, indicating integration into the system's control logic.
  - Board Gating Indicator: Driven by gate inputs from the EMIO board, lights up to indicate that the board is actively gating, processing, and transmitting gate pulse signals to the EGPA boards. This confirms the ESEL board's role in signal distribution and amplification.

Frequently Asked Questions:
1.What is ESEL redundancy, and why is it important?

Redundancy involves incorporating additional units within control systems. This is vital for enhancing system reliability and fault tolerance, reducing downtime, and ensuring continuous operation even when components fail.

2.What are the voltage and current for IS200ESELH1AAA ?
Current inputs from pyrometers: 4-20 mA
Keyphasor inputs voltage: 0.5 - 20 V dc

Datasheet Link:

IS200ESELH1AAA GE EX2100, Exciter Selector Board PDF Datasheet