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Microprocessor-Based Automatic Instrument Transformer Comparator

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1 Author(s)

A new self-balancing comparator for instrument transformers was developed. The instrument is capable of determining the errors of voltage or current transformers with the aid of a calibrated reference standard transformer. A microprocessor is used to enhance the performance of the instrument by controlling the balancing, automatic zero, and calibration routines.

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Instrumentation and Measurement, IEEE Transactions on  (Volume:32 ,  Issue: 1 )