The C&C T-TPA ac reluctance type tap-position transducer converts an ac
voltage, derived from an excited variable reluctance tap-position source,
into a load independent dc current or voltage signal capable of driving a
number of independent instruments. The transducer measures both the
excitation and output voltage from the tap-position source and generates
an output that is proportional to the quotient of these two signals.
Power for the unit is derived from an auxiliary supply.