Overview
The IS200ESELH1AAA is an Exciter Selector Board manufactured by General Electric (GE) for the EX2100 excitation control system. It receives six logic-level gate pulse signals from the Master I/O (EMIO) board, processes them, and distributes them through six cable sets to the Exciter Gate Pulse Amplifier (EGPA) boards. In addition, it supports two Keyphasor probe inputs and accepts 4-20 mA current signals from pyrometers.
Signal Processing and Distribution
The IS200ESELH1AAA manages gate pulse signal transmission within the excitation control system. It receives six logic-level gate pulse signals from the EMIO board and processes them for distribution to the EGPA boards.
Furthermore, the board provides six cable output paths for transmitting the processed gate pulse signals. The EGPA boards receive these signals and amplify them for subsequent gate control operations. Therefore, the selector board serves as an interface between the control logic and the gate pulse amplification stage.
Keyphasor and Pyrometer Inputs
The board supports two Keyphasor probe inputs, with an input voltage range of 0.5-20 VDC. Its maximum lead resistance is 15 ohm. These specifications are relevant when checking probe wiring and signal conditions.
In addition, the board accepts 4-20 mA current inputs from pyrometers. These input requirements should be considered when verifying the connected instrumentation and signal wiring.
Technical Specifications
| Parameter | Specification |
|---|---|
| Model | IS200ESELH1AAA |
| Brand | General Electric (GE) |
| Series | EX2100 |
| Product Type | Exciter Selector Board |
| Functional Description | Exciter Selector Board |
| Gate Pulse Inputs | 6 logic-level signals from EMIO |
| Gate Pulse Distribution | 6 cable sets to EGPA boards |
| Keyphasor Probe Inputs | 2 |
| Keyphasor Input Voltage | 0.5-20 VDC |
| Maximum Lead Resistance | 15 ohm |
| Pyrometer Current Inputs | 4-20 mA |
| Dimensions (H x W x D) | 26.04 x 1.99 x 18.73 cm |
| Country of Manufacture | United States of America (USA) |
Frequently Asked Questions
Q: What is the main function of the IS200ESELH1AAA?
A: It processes and distributes six logic-level gate pulse signals received from the EMIO board to six EGPA cable sets within the GE EX2100 excitation control system.
Q: How many Keyphasor probes can the board support?
A: The board supports two Keyphasor probe inputs, with an input voltage range of 0.5-20 VDC and a maximum lead resistance of 15 ohm.
Q: What signal type does the board accept from pyrometers?
A: It accepts 4-20 mA current inputs from pyrometers. The connected instrumentation should match this signal range.
