- Attenuates field-bus and PPT voltages for the EGDM measurement path
- Uses selectable filter capacitance for installations below or above 750 VAC
- Drives the ground-detection test relay for controlled field-to-ground excitation
IS200EXAMG1A is installed in the High Voltage Interface section of an EX2100 auxiliary cabinet, where it forms the voltage-scaling boundary between the power circuit and the Exciter Ground Detector Module.
Precision networks reduce the positive and negative field-bus potentials and the power-potential-transformer signal to levels that EGDM can evaluate for insulation leakage and field-ground conditions.
The jumper arrangement must remain aligned with the actual PPT voltage class; incorrect capacitance selection can change the ground-detection response even when all connectors fit.
Availability, condition, price, and shipping time for IS200EXAMG1A are confirmed during quotation.
General Electric IS200EXAMG1A EX2100 Exciter Attenuation Module Product Family, Support, Links
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description. All prices are shown in USD.
- Positive and negative field-bus potentials enter separate attenuation paths
- The scaled signals are presented to the Exciter Ground Detector Module
- Protective grounding completes the measurement reference
- JP1 and JP2 adapt the network to the installed PPT voltage class
- The 750 VAC boundary separates the documented selections
- The original project setting must be recorded before board exchange
- EGDM commands a 24 VDC relay on the module
- The relay applies the low-frequency test signal to the field
- The approved test limits each application to the documented duration
- EX2100 generator field-ground fault detection
- Static excitation field-bus voltage attenuation
- Controlled low-frequency insulation test injection