Features:
- Measures EX2100 bridge AC supply voltage and current feedback.
- Uses transformer-isolated three-phase voltage inputs and two coil channels.
- Fans conditioned signals out to the M1, M2 and C controllers.
The G3 board is selected for the high-voltage PPT input class and converts the three phases into low-level measurement signals.
Separate coil terminals carry the two current-feedback sources, with shielding and noise suppression placed near the entry point.
Three DB9 cable paths let the same conditioned feedback reach each control section without routing raw bridge signals into the control enclosure.
Check the G3 voltage class, terminal assignments and controller-cable routes when pairing General Electric IS200EACFG3A with an EX2100 feedback circuit.
General Electric IS200EACFG3A Exciter AC Feedback Board Manuals,Datasheets,Link
Important Notice: Confirm the G3 voltage version, PPT phase order and M1/M2/C output assignments before using the feedback details.
From bridge measurements to control sections
- Source: The board receives PPT ac supply voltage and current signals.
- Conditioning: Voltage transformers reduce the three-phase feedback level.
- Distribution: Conditioned circuits fan out through three controller connectors.
- Cabinet Layout: The terminal board remains in the exciter auxiliary cabinet.
Three-phase PPT terminal organization
- Phase A: TB1 terminates the phase-A PPT input.
- Phase B: TB2 accepts the phase-B connection.
- Phase C: TB3 completes the three-phase measurement set.
- Test Rings: TP1-TP4 expose defined phase-to-phase transformed outputs.
Flux/Air current-feedback channels
- Channel One: TB4 terminals 1 and 2 connect the first Flux/Air core coil.
- Channel Two: TB4 terminals 3 and 4 connect the second coil.
- Noise Control: High-frequency suppression is placed near the signal entry.
- Shielding: Adjacent shield screws reference applicable cable shields to chassis ground.
Separate feedback paths for M1, M2 and C
- M1 Path: J504 carries feedback toward controller M1.
- M2 Path: J509 provides the second controller cable interface.
- C Path: J514 serves the C control section.
- Cable Reach: The interface cable to the backplane can extend up to 90 m.