IS200EPSMG1A GE Exciter Power Supply Module EX2100

GE IS200EPSMG1A Exciter Power Supply Module – EX2100 Series

Key Technical Specifications

• Brand & Part Number: General Electric IS200EPSMG1A (Exciter Power Supply Module)
• Input Voltage: 125 VDC from Power Distribution Module (PDM)
• Intermediate Voltage: 50 VDC (buck-regulator stage)
• Output Voltages: +5 VDC, 15 VDC, 24 VDC for backplane; isolated +70 VDC for contact wetting; 24 VDC for external loads (fans, crowbar, ground detector)
• Isolation: Transformer provides high-voltage isolation between input source and control outputs
• Mounting: Plugs into Exciter Power Backplane (EPBP) located beneath the control rack
• Weight: 1 lb 8 oz (approx. 0.68 kg)
• Manual Reference: GEI-100462 / GEH-6632 (EX2100 User Guide)
• Environmental: Designed for industrial turbine cabinet environments; excellent noise immunity per EX2100 specs

Functional Highlights & Applications

• Dual-stage conversion: Buck regulator first steps down 125 VDC to 50 VDC, then a push-pull inverter generates multiple isolated outputs.
• Excitation control (EPSMG1): Each controller M1, M2, C uses three independent IS200EPSMG1A modules for redundancy.
• External power delivery: Provides 24 VDC to de-excitation module (EDEX), crowbar, ground detector (EGDM), and field voltage/current modules.
• Contact wetting: Delivers isolated +70 VDC to terminal boards (ECTB/EXTB) for reliable dry-contact sensing.
• Version note: This "A" revision board is not backward compatible with older variants.

Frequently Asked Questions (FAQ)

• What is the main function of IS200EPSMG1A? It converts 125 VDC from the PDM into the +5 V, +15 V, and +24 V required by EX2100 excitation controllers and external modules.
• Does this module provide isolation? Yes, the internal push-pull inverter’s transformer offers high-voltage isolation between the input source and the control outputs.
• Can I use this module in a redundant EX2100 system? Absolutely. In redundant setups each controller (M1, M2, C) gets its own independent IS200EPSMG1A for fault tolerance.
• What is your return policy? We accept returns within 30 days, provided the item is in its original new condition.
• Do you have the IS200EPSMG1A in stock? Yes, we maintain inventory of this General Electric EX2100 series module.

Contact Information
Inquiries: sales@nex-auto.com | WhatsApp: +86 153 9242 9628
Partner: NexAuto Technology Limited