Why is the core of a power transformer grounded?

Transformer is a static piece of equipment and it has primary and secondary winding. The low voltage winding has few turns of wire wound around the core. The high voltage winding has many turns of wire¬† wound around the low voltage winding. This scheme of winding reduces the electric stress between the core and the … Read more

Why PS Class Current Transformer is used for Differential Protection?

differential protection scheme

What is Differential Protection? The differential protection is used for detecting the fault in a particular zone. Therefore, we call it also unit or zone protection. The differential protection is widely used in a large rating transformers, alternators,motors and bus bars. The PS class CTs are used for differential protection. The differential protection is also … Read more