working potential transformer pdf

Presented by: R Khan A transformer that supplies an instrument with a precise fraction of the quantity being measured, such as voltage or current. Two primary windings and one secondary winding make up a potential transformer. The auxiliary transformer further reduces the voltage with high accuracy to be measured by the voltmeter. Therefore there is a need for an instrument that can measure the high values of currents without any harm or burning of the device itself. Emi PPT2 Document pages.

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