Presented by Morteza Talebi, TRC Companies

Instrument transformers measure and transform high current and voltage magnitudes in the transmission and distribution system to low and more manageable secondary magnitudes that are used to supply intelligence to metering, monitoring, and protective control equipment. The purpose of this training is to provide a general overview of instrument transformers and the required tests for ensuring the serviceability of substation current transformers and voltage transformers. Topics include Current and Voltage Transformer theory and application, nameplate interpretation, current and potential transformer stand alone and circuit testing and precautions in field testing of Instrument transformers..