A power transformer increase or lower the power of an AC circuit in an unsurprising way reliant on the ratio connecting the windings. For instance, a 100:1 ratio power transformer, 100 amps flowing through the primary transformer winding will effect in a power of 1 amp throughout the secondary winding.

Working of a Current Transformer:



A power transformer comprises of a primary and secondary coils of wire enfolded around a core, as a rule completed with steel or a nickel alloy. Transformer windings are electrically shielded from every other and as of from the core. The winding linked to the power supply is termed as the primary winding. The transformer winding in which power is put in is termed as the secondary winding.

As current get ahead all the way through the primary winding, an electromagnetic field is formed which encourages a power in the electrically out-of-the-way secondary winding. The numeral of coils in a winding finds out the total of current and current in the circuit. By varying the coil ratio flanked by the primary and secondary winding, a current transformer can change the current, moreover by stepping it upward or downward, as preserving power.