Instrument Transformers

Instrument transformers, comprising voltage transformers (VTs) and current transformers (CTs), play crucial roles in power substations by providing isolated replicas of current or voltage for measurement and protection purposes. Voltage transformers reduce the primary voltage to levels suitable for relay operation and measurement, while current ...

Instrument transformers include voltage and current transformers.

The primary winding of a current transformer typically has a single turn or a conducting bar, around which multiple turns of the secondary winding are wound.

The high current flowing through the primary winding induces a reduced current in the secondary winding. The ...