The purpose and function of a Voltage transformer is almost like that of a current transformer except that high voltages are transformed to manageable low voltages to operate metering and protective systems. Generally Volatage Transformeris like a power transformer directly connected to a system line. Separate windings are provided for a metering and protection with different accuracies and voltagfactor required for various applications.

We at Suman Controls manufacture the class of cores also.

PRIMARY and SECONDARY WINDING Modified polyester enamelled copper wires used for winding of primary and secondary. At all stages of winding, care is taken to protect winding to avoid high surge and high voltage stress.

ELECTROMAGNETIC CORE (YOKE) CRGO silicon steel laminations are used for core stack and shell type is used to minimize leakage reactance. Very low flux densities are adopted to obtain optimum accuracies.