Brand: GE Description: IS200EGDMH1AFG Condition: Brand New Certificate: COO TEST REPORT WARRANTY LETTER Warranty: 1 year Inventory Qty: 14 Payment Term: T/T Shipping Port: Shenzhen GE IS200EGDMH1AFG Installed in the Exciter Power Backplane (EPBP) rack of GE’s EX2100 excitation control system, the IS200EGDMH1AFG continuously monitors the resistance between any point in the generator’s field circuit and earth ground.
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Manufacture |
GE |
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Model Number |
IS200EGDMH1AFG |
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Ordering Number |
IS200EGDMH1AFG |
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Catalog |
Mark VI |
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Description |
GE IS200EGDMH1AFG Exciter Ground Detector Module |
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Country Of Origin |
8537101190 |
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HS CODE |
USA |
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Dimension |
228 × 152 × 38 mm |
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Weight |
0.56 kg |
Technical Parameters
Functional Acronym: EGDM (Exciter Ground Detector Module), specifically implemented as the GE IS200EGDMH1AFG module.
Form Factor: VME 6U, double-slot, double-height board
Injection Signal: ±50 V square-wave, current-limited to ~80 mA
Normal Test Period: 5 s; Fast-Test Period: 400 ms
Output Impedance: < 1 Ω (voltage-source characteristic)
Operating Temperature: –30 °C to +65 °C
Storage Temperature: –40 °C to +85 °C
Humidity: Up to 95 % RH, non-condensing
Mounting: Plugs into EPBP slot; no front-panel controls
Product function
The GE IS200EGDMH1AFG injects a controlled square-wave into the generator’s field winding and measures any resultant ground-leakage current. By periodically sweeping the field circuit, it detects resistive paths to ground—whether on the DC or AC side—and signals the control CPU when leakage exceeds safe thresholds. This enables prompt alarm or shutdown actions to prevent insulation damage and unplanned outages.
Core supporting modules
EXAM Attenuator Module: Measures voltage across the ground-sensing resistor for accurate ground-fault detection by the GE IS200EGDMH1AFG.
High-Voltage Module: Housed in the auxiliary panel, powers the EXAM and EGDM during ground-fault tests.
Mark VIe CPU or EX2100 Controller: Aggregates EGDM fault signals for alarm/trip logic.
Extension components
Redundancy Kits: Socket-and-bracket sets for installing multiple GE IS200EGDMH1AFG modules in parallel.
Test Leads & Jumpers: Custom harnesses for field-wiring diagnostics.
Spare Faceplate Assembly: Replacement bezel with status LEDs.
Rack-Mounting Hardware: Standoffs and guides for secure EPBP installation.
Software support
Configuration: Fully hardware-based; no user configuration or firmware updates required for the GE IS200EGDMH1AFG.
Diagnostics: Module-present detection; “Ground-Fault” alarm flag reported to exciter controller.
Integration: Transparent to GE Excitation Control and Mark VIe/S control suites—no additional drivers required.
