GE IS200ERDDH1ABA Exciter Regulator Dynamics Discharge Board

Product Overview

The IS200ERDDH1A is an Exciter Regulator Dynamics Discharge Board. It belongs to the GE EX2100 series. This board generates a scaled feedback voltage. The voltage range is -600 to +600 V dc. The ERDD connects to the attenuated signal. It uses the signal to create output voltage feedback. The VCO is biased for zero output voltage. This produces a VCO frequency of 1 MHz.

This board has two operating modes. These are simplex and redundant modes. Each mode has a different use. Each mode also mounts differently. In simplex mode, the board controls the K3 charging relay. In redundant mode, it controls the K41 de-excitation relay. The mounting location changes with the mode.

Application Scenarios

You can use this board in industrial exciter systems. It works with the GE EX2100 series. The board provides feedback from the bridge. It observes the output field voltage. It also observes DC link voltages. The board monitors output shunt currents. It checks IGBT gate drive statuses. It also monitors bridge temperature. The board controls excess DC link voltages. It does this through dynamic discharge.

Use simplex mode for single board setups. Use redundant mode for higher reliability. In redundant mode, you need two boards. One board mounts in the ERBP backplane. The other board mounts in the ERRB backplane.

Technical Specifications

The board generates a feedback voltage. The range is -600 to +600 V dc. The VCO frequency is 1 MHz at zero voltage. The board controls K3 and K41 relays. It monitors field voltage and DC link voltages. It observes output shunt currents. It checks IGBT gate drive statuses. It also monitors bridge temperature.

The board has two operating modes. Simplex mode uses one board. Redundant mode uses two boards. The board mounts in specific backplanes. These are the ERBP and ERRB backplanes.

Installation & Maintenance Guide

For simplex mode, mount the board in the ERBP backplane. For redundant mode, mount one board in the ERBP backplane. Mount the second board in the ERRB backplane. Ensure all connections are secure. Check the board for any damage before installation. Use proper ESD protection when handling. Keep the board clean and dry. Do not expose it to extreme temperatures. Test the board after installation. Verify the feedback voltage is correct. Check the relay operation.

Packing List

The package includes one IS200ERDDH1A board. It also includes a user manual. No additional cables or accessories are included. Please verify the model before installation.