What is Potential Transformer?Construction of PT,Classification Of Potential Transformer,Ratio of PT.,Uses of PT,Difference between PT and CT,Diff. b/w power Transformer and PT.
Potential Transformer We can define Potential Transformer as an instrument transformer used for the transformation of voltage from a high value to the lower value,In fact potential transformer step down the voltage to a safe limit value which we can easily measured by the ordinary low voltage instrument like a voltmeter,watt meter and watt-hour meter etc. Potential transformer is a step down transformer which lower the voltage circuit.Potential transformer are connected across or parallel to the line which is being measured to record phase angle error or ratio errors. Construction of Single Phase PT Core Core of Potential transformer may be core type or shell type .In core type transformer the windings surrounding the core and in the shell type transformer the core surrounded the windi...