Product Description
The IS200EACFG2BAA model is labeled as an Exciter ac Feedback Board produced by General Electric to work with models in the EX2100 or Mark VI series. This model will measure the exciter PPT ac supply voltage and currents. There are transformers on this model, which will be used for three-phase voltage measurement, with terminals used for control of the two Flux/Air core coils. The outputs produced by the current and voltage currents will be fanned out to the DB9 connectors; once the DB9 connectors have accepted the circuits they will be sent to the M1, M2, and C controllers. This is one of three versions of the EACF board. Each of the EACF boards is equipped with a different voltage; the voltage available on this model is 1000 V rms +20% at approximately 50/60 Hertz (Hz).
Along with the T1 through T4 transformers on the IS200EACFG2BAA model, there are voltage test rings labeled TP1-4. The voltage test rings will measure the phase voltage output from the potential transformers. The TP1 and TP2 rings will obtain the line-to-line AB voltage, the TP3 and TP4 obtain the line-to-line BC voltage, and the TP4 and TP1 rings obtain the line-to-line CA voltage. For information on what the test rings do after collecting these voltages, refer to the GEI-100465A manual.
There are nine pins available on the J504 connector; each of the pins on the connector has an individual function; for example, the third and fourth pins are used with the power potential transfer signals; the third pin is used for signal one, and the fourth pin is used for signal two, both of the pins are used with the negative signals.