GE IS200ESELH2AAA: Advanced Gas Turbine Control Card

GE IS200ESELH2AAA – EX2100 Exciter Selector Board

Part of the EX2100 Excitation Control System | Conformal Coating | Triple Revision (AAA)

Technical Specifications:

• Manufacturer: GE Industrial Systems

• Series: EX2100

• Part Number: IS200ESELH2AAA

• Functional Acronym: ESEL

• Functional Description: Printed Circuit Board (Exciter Selector Board)

• PCB Coating: Conformal Coating

• Revisions:

• Functional Revision 1: A

• Functional Revision 2: A

• Artwork Revision: A

Product Overview:

The IS200ESELH2AAA is a Printed Circuit Board (PCB) developed by GE Industrial Systems as part of the EX2100 Excitation Control System. More specifically, this board is known as an Exciter Selector Board, a component modified from the base model IS200ESELH2 through the incorporation of three A-rated revisions for enhanced functionality and performance.

Hardware Description & Functionality:

• The IS200ESELH2AAA serves a critical role in the EX2100 drive assembly, acting as a receiver for six logic-level gate pulse signals generated by a corresponding EMIO board.

• These gate pulse signals are then transmitted via six cables to their respective Exciter Gate Pulse Amplifier (EGPA) boards, located within the power conversion cabinet of the EX2100 system.

• The board’s application depends on the control system configuration:

• Simplex configuration: Requires one ESEL board.

• Redundant configuration: Requires two ESEL boards, one managed by M1 and the other by M2.

• The active ESEL board is selected by the C controller, which then transmits the required control signals to the associated EGPA modules.

Identification by Part Number:

The unique product number IS200ESELH2AAA contains several embedded identifiers:

• IS200 Prefix: Indicates a domestically manufactured standard product, without any special assembly variant.

• H2 Series Grouping: Specifies a conformally coated PCB with three bridge drivers integrated into the design.

• "AAA" Suffix: Signifies three revisions—two functional and one artwork—rated A, reflecting enhancements to functionality and layout.

Summary of Features:

• Functions as an exciter selector within EX2100 control systems

• Interfaces directly with EMIO and EGPA boards

• Supports both simplex and redundant configurations

• Provides protected operation via conformal coating

• Enhanced through triple A-rated revisions

• Optimized for reliable gate signal management in power conversion systems