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GE IS200EPDMG1A Power Distribution Module
GE Fanuc IS200EPDMG1A
1. Product Overview
The GE IS200EPDMG1A is an Exciter Power Distribution Module (EPDM) belonging to the General Electric (GE) EX2100 excitation control system series and categorized under the Mark VI system. Its core function is to convert the output signals of the excitation controller into excitation current for the exciter, and distribute power to the system’s input/output (I/O) terminals, protection boards, and control boards. The module is abbreviated as DM, with the general revision number IS200EPDMG1AAA and board-level revision A. It is documented in the official manual GEH-6632 EX2100 Excitation Controller.
2. Technical Specifications
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Parameter Item
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Value / Description
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Model
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IS200EPDMG1A
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Manufacturer
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General Electric (GE)
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Series
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EX2100 (Innovation Series)
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Power Supply Mode
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1 or 2 sets of 115 VAC and 125 VDC power supply
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Output Voltage
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Provides stable +62.5V and -62.5V (to ground), up to 125VDC after rectification
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Operating Voltage
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5V, 12V, etc.
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Maximum Voltage
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Up to 350 VDC
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Maximum Current
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Up to 50 A
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Operating Temperature
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-35°C to +65°C; alternative specification: -40°C to +85°C
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Number of Relay Channels
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12
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Dimensions
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11 in × 8.5 in × 2 in (approximately 279mm × 216mm × 51mm)
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Weight
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6 pounds 4 ounces (approximately 2.83kg); alternative recorded weight: 0.8kg
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Installation Position
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Auxiliary Cabinet
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Origin
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United States
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3. Product Features
High Efficiency: Enables efficient power conversion and distribution to ensure stable system power supply operation.
High Reliability: Adopts a robust and durable structural design, with strong anti-damage performance and stable long-term operation.
Multi-Channel Output: Supports multi-channel power output, greatly improving system flexibility and scalability. It can supply power to multiple boards simultaneously, including EPBP, EXTB, and EGPA boards.
Intuitive User Interface: Equipped with LED indicator lights and control switches for real-time equipment status monitoring and convenient manual operation and inspection.
Modular Design: Installed on the side of the Exciter Power Backplane (EPBP), featuring simple structure, convenient system integration and daily maintenance.
Power Filtering and Rectification: The input power is processed by filtering. The DACA module rectifies and filters 115VAC input into stable 125VDC output, optimizing power quality.
4. Structure and Composition
On-Board Interfaces: The module is equipped with 7 toggle switches and 12 female pin connectors for stable connection and power transmission with various power supply boards.
Matched Module: It must be used in conjunction with the DACA module. The DACA module is responsible for receiving 115V AC power input and converting and filtering it into 125V DC power for system use.
Power Supply Objects: Mainly provides stable power supply for EGPA boards, EPBP backplanes, EXTB boards and other core system boards.
Power Supply Source: It can obtain 125VDC power from station batteries, effectively improving the overall operational reliability of the control system.
5. Application Fields
The GE IS200EPDMG1A module is widely applied in industrial and power system scenarios that require precise excitation control and stable power distribution, with specific application scenarios as follows:
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Application Field
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Specific Scenarios
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|---|---|
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Power Generation
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Coal-fired power plants, gas power plants, nuclear power plants, renewable energy power plants
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Industrial Automation
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Frequency converters, drivers, UPS systems, inverters, and production line automation equipment
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Rail Transit
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Electric locomotives, subways and other rail transit equipment
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New Energy
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Wind power generation, photovoltaic power generation systems
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Power System
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Substations, power distribution systems
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Gas Turbine Control
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Applied to gas turbine control systems, providing DC power for exciters to regulate generator voltage stably
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6. Installation and Maintenance
Installation Position: The module is conventionally mounted on the side of the Exciter Power Backplane (EPBP) and installed inside the equipment auxiliary cabinet.
Power Supply Requirements: The input power of the IS200EPDMG1A must be filtered. The 115VAC input needs to be converted and filtered into DC voltage, so the module must be used with the DACA module to meet power supply standards.
Wiring Specification: The module outputs P125V and N125V DC power with a rated ground voltage of ±62.5V. Power is transmitted to each load board via matched toggle switches and pin connectors.
Status Indication: The real-time operating status of the module can be intuitively monitored through the on-board LED indicator lights, facilitating daily inspection and fault troubleshooting.
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