IS200EPSMG1A

Overview

The IS200EPSMG1A is an automation component from GE. Excitation Control System Application.

Application & Technical Notes

As an automation component, the IS200EPSMG1A is intended for deployment in panel-based control cabinets and machine enclosures where the GE product portfolio equipment is installed. It performs a defined automation function within the control system and is selected to match the installed GE platform.

Specific electrical and mechanical ratings depend on the exact configuration and suffix of the part; the original datasheet should be consulted for the definitive specification.

Maintenance & Diagnostics

Inspect terminals and connectors for corrosion or looseness, and confirm the module seats correctly in its carrier. Always de-energise the circuit and follow lock-out/tag-out before handling; refer to the official instruction bulletin for service procedures.

Sourcing & Procurement

When sourcing the IS200EPSMG1A, distinguish three supply tiers: (1) genuine GE stock from an authorised distributor; (2) compatible equivalents or surplus/NOS (new-old-stock) from third parties; (3) alternative parts offering equivalent function. Genuine supply carries the full warranty and traceability; compatible or alternative items may be cheaper but should be validated for form, fit, firmware and certification before use in a live system. PLCXpert publishes this page as an independent reference and does not sell the part — verify every claim with the manufacturer or your distributor.

Confirm mechanical and electrical compatibility with your GE product portfolio installation and the intended function. Lead times and pricing vary by region and lifecycle status; obtain a current quote from an authorised channel rather than relying on stale listings.

Check live stock, lead time and request a quote for IS200EPSMG1A → (opens in a new tab)

Frequently Asked Questions

Specifications

SPECIFICATIONS Part Number: IS200EPSMG1A Manufacturer: General Electric Country of Manufacture: United States(USA) Series: EX2100 Manual: GEI-100462 Repair: 3-5 Days Function: Exciter Power Supply Module Functional Description IS200EPSMG1A is an Exciter Power Supply Module developed by GE. It is a part of EX2100 turbine Control System. The EX2100 Excitation Control System and the EX2100 Regulator Control both use this Exciter Power Supply Module (EPSM). EPSM Group 1 (EPSMG1) modules are used in the excitation control system, while EPSM Group 2 (EPSMG2) modules are used in the regulator control. The Exciter Regulator Power Supply Daughter board (EPSD) is mounted to the EPSMG2. The EPSM is made up of two major parts: a buck-regulator and a push-pull inverter. The buck-regulator converts the input voltage to an intermediate voltage of 50 V dc. This intermediate voltage is then fed into a push-pull inverter, which generates the necessary multiple output voltages. The push-pull inverter's transformer provides high-voltage isolation between the input voltage source and the output supplied to the control system. Excitation Control System Application EPSMG1 converts 125 V dc from the power distribution module (PDM) to the voltages needed for EX2100 excitation control. Each of the controllers M1, M2, and C is powered by three independent EPSMG1s. They have installed in the control cabinet's EPBPG, A Exciter Power Backplane (EPBP), which is located beneath the EBKPG A Exciter Backplane (EBKP). Power is transferred from the EPSMG1 to the EPBP via connectors P1 and P2 for cables to the EBKP and other boards. The EPSMG1 provides power to the control assembly backplane at +5 V dc, 15 V dc, and 24 V dc. External modules are also powered as follows: 24 volts direct current to power the fans, de-excitation module, crowbar module, ground detector module, and field voltage/current module. Isolated +70 V dc for terminal board contact wetting Regulator Control Application EPSMG2 converts the dc link bus voltage into the voltages needed to control the EX2100 regulator. One EPSMG2 is installed in the ERBPH A Exciter Regulator Backplane in simplex systems (ERBP). In redundant systems, one EPSMG2 is installed in the ERBP (M1) and another in the ERRBH A Exciter Regulator Redundant Backplane (ERRB, M2/C). By increasing the creep and clearance, the EPSD mounted on EPSMG2 modifies the power input path, allowing EPSMG2 to accept higher voltages. It also acts as a fuse between the power source for the regulator (dc link) and the buck-regulator. The EPSMG2 provides the ERBP and ERRB with +5 V dc, 15 V dc, and 24 V dc. External modules are also powered as follows: 24 volts direct current (P24B/N24B) to power fans, relays, and the dc feedback board Contact-wetting isolated +70 V dc (P70) on the terminal board, dynamic discharge board, and redundant relay board 20 V ac isolated (AC17) to power the IGBT gate and dynamic discharge board 55 V dc (P55/N55) to the options card's ground detector circuits IS200EPSMG1A Technical Specifications Board Type Exciter Power Supply Module Functional Acronym (Abbreviation) EPSM Location Mount in the EPBP Backplane Manual GEI-100462 or GEH-6632 (EX2100 Users Guide)

Reproduced from the manufacturer's published data. Values marked "Not available" are absent from the source document.

Related GE parts

• 369B1841G0131
• 369B1842G0013
• 369B1859G0018
• 369B1868G0008
• 369B1871G0007
• 531X111PSHAPG2
• 531X111PSHARG3
• 531X121PCRALG1