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IS200EPSMG1A

IS200EPSMG1A General Electric Excitation Controller Supply

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  • Manufacturer: General Electric

  • Product No.: IS200EPSMG1A

  • Product Type: Power Supply

  • Product Origin: USA

  • Payment:T/T, Western Union

  • Weight: 680g

  • Shipping port: Xiamen

  • Warranty: 12 months

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Product Overview

The GE IS200EPSMG1A is an Exciter Power Supply Module (EPSM Group 1) designed for the GE EX2100 Excitation Control System. Installed in the EPBP backplane, it converts 125 VDC input from the power distribution module into regulated +5 VDC, ±15 VDC, and 24 VDC logic voltages for the M1, M2, and C controllers, while supplying isolated power to external excitation modules.

Core Features

  • Dual-Stage Power Conversion: Features an integrated buck-regulator that steps down input voltage to 50 VDC, followed by a push-pull inverter for isolated multi-rail output.
  • High Voltage Isolation: Transformer-isolated push-pull inverter design shields sensitive control logic from primary input surges.
  • Triple Controller Support: Powers independent M1, M2, and C control racks via connectors P1 and P2 on the EPBP backplane.
  • External Module Distribution: Supplies 24 VDC to cooling fans, de-excitation (EDEX), crowbar, ground detector (EGDM), and field voltage/current (EDCF) modules.

Technical Specifications

Parameter Data
Part Number IS200EPSMG1A
System Series EX2100 Excitation Control System
Nominal Input Voltage 125 VDC (from EPDM Power Distribution Module)
Logic Output Voltages +5 VDC, ±15 VDC, 24 VDC
Contact Wetting Output Isolated +70 VDC (for ECTB / EXTB terminal boards)
Mounting Location EPBP A Exciter Power Backplane (beneath EBKP)
Module Net Weight 0.68 kg (1.50 lbs / 1lb 8oz)
System Manual Reference GEI-100462 / GEH-6632
Country of Origin United States of America (USA)

Engineering & Installation Guide

  • Backplane Insertion: Install the lightweight 0.68 kg module into its assigned slot in the EPBP backplane beneath the control rack, ensuring full seating of backplane edge connectors.
  • Cable Interface: Verify P1 and P2 cable connections to ensure stable DC power delivery to the EBKP backplane and control modules.
  • Contact Wetting Lines: Ensure isolated +70 VDC wiring to ECTB/EXTB terminal boards is correctly routed and shielded to avoid crosstalk with logic lines.
  • System Compatibility: Note that Revision A (IS200EPSMG1A) is not backward compatible with non-A versions; verify exact part number before replacement.

Technical FAQs

Q1: What is the main function of the IS200EPSMG1A module?
A1: Converts 125 VDC to logic levels (+5V, ±15V, 24V DC) for EX2100 controllers.

Q2: Where is the IS200EPSMG1A module installed in the cabinet?
A2: Mounts in the EPBP backplane located directly beneath the EBKP control rack.

Q3: How does EPSMG1 differ from EPSMG2?
A3: EPSMG1 powers EX2100 excitation control; EPSMG2 has an EPSD board for higher voltage regulator control.

🏷️ Tags: GE Mark VIe General Electric Power Supply
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