IS200ESELH3A

Overview

The IS200ESELH3A is an Exciter Regulator Exciter Selector Board from GE. It is part of GE's industrial automation product portfolio.

Application & Technical Notes

As an exciter regulator exciter selector board, the IS200ESELH3A is intended for deployment in panel-based control cabinets and machine enclosures where the GE product portfolio equipment is installed. It performs a defined automation function within the control system and is selected to match the installed GE platform.

Specific electrical and mechanical ratings depend on the exact configuration and suffix of the part; the original datasheet should be consulted for the definitive specification.

Maintenance & Diagnostics

Inspect terminals and connectors for corrosion or looseness, and confirm the module seats correctly in its carrier. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.

Sourcing & Procurement

When sourcing the IS200ESELH3A, distinguish three supply tiers: (1) genuine GE stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.

Confirm mechanical and electrical compatibility with your GE product portfolio installation and the intended function. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.

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Frequently Asked Questions

Specifications

SPECIFICATIONS Part No.: IS200ESELH3A Manufacturer: General Electric Country of Manufacture: United States of America (USA) Size: 33.02 cm high x 10.16 cm wide Product Type: Exciter Regulator Exciter Selector Board Availability: In Stock Series: EX2100 Functional Description IS200ESELH3A is an Exciter Selector Board developed by GE. It is a part of EX2100 excitation system. The Exciter Selector Board (ESEL) is mounted in the control rack of the system, responsible for receiving six logic-level gate pulse signals from the Exciter Master I/O (EMIO) board. These pulse signals are processed by the ESEL board and distributed through six sets of cables to the Exciter Gate Pulse Amplifier (EGPA) boards located in the Power Conversion Cabinet. The ESEL board's role is to ensure that these signals are accurately transmitted and amplified by the EGPA boards, which control the gate drives in the exciter system. This coordinated operation is essential for regulating the generator's electrical output efficiently. Features Signal Reception and Processing: The board receives six logic-level gate pulse signals from the Exciter Master I/O (EMIO) board. These gate pulse signals are essential for controlling the gate drives in the exciter system. Signal Distribution: After receiving the gate pulse signals, the board processes them and then distributes the signals through six sets of cables to the Exciter Gate Pulse Amplifier (EGPA) boards located within the Power Conversion Cabinet. This distribution ensures the pulse signals are routed efficiently to the amplification stages. Amplification for Gate Drive Control: The boards, which are located in the Power Conversion Cabinet, play a crucial role in amplifying the received gate pulse signals. The amplified signals are then used to control the gate drives that regulate the exciter in the generator’s excitation system. Ensuring Coordinated Operation: The role of the board is critical in ensuring that these pulse signals are accurately transmitted and amplified by the EGPA boards, which work in tandem with the rest of the excitation system to maintain stable and reliable operation of the generator. The synchronized and precise operation of these components is vital for efficient regulation of the generator’s electrical output. System Integration: The board is mounted in the control rack of the EX2100 excitation system, integrating seamlessly with other components like the EMIO board and EGPA boards. This centralized mounting within the control rack ensures easy integration and communication between the board and other critical parts of the excitation system. Application Data Designed with a streamlined and efficient configuration, eliminating the need for jumpers or test points. This design choice simplifies the board layout and maintenance. Connectors P1 and P2 facilitate the connection to the VME backplane, serving as essential interfaces for the board integration into the broader system. However, the specific pin signals for these connectors are not defined within this document, as they are not typically checked during standard troubleshooting procedures. This approach underscores the reliability and low-maintenance nature of the EXAM board, allowing for easier management and fewer points of potential failure. The layout of the EXAM board is meticulously organized, as illustrated in the accompanying figure (not provided here). A key feature of the board is the three green LEDs located at the top of the front panel, which serve as vital status indicators. These LEDs provide real-time information about the board's operational status. The first LED confirms that power is supplied to the board, ensuring that it is ready for operation. The second LED indicates that the board is active, having been enabled by a control signal from control C. This signal is critical for the board functionality, as it signifies that the board is in a state of readiness to perform its designated tasks. The third LED reveals that the board is gating, driven by gate inputs from the EMIO. This gating function is essential for the board's role in managing electrical signals within the system, highlighting its active participation in the system control processes. Together, these provide a straightforward yet comprehensive method for monitoring the board status, aiding in quick diagnostics and ensuring optimal performance. IS200ESELH3A Technical Specifications Model Number IS200ESELH3A Common Revisions IS200ESELH3AAA Board Description Exciter Selector Board

Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.

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