Polyphase (three-phase) induction motors have a high starting torque, power factor, high efficiency, and low current. They do not use…

Types of single-phase motors are distinguished mostly by the way they are started and the torque they develop. Shaded Pole…

The electric motor in its simplest terms is a converter of electrical energy to useful mechanical energy. The electric motor…

Most differential protection relays are current differential relays in which vector difference between the current entering the winding and current…

Differential protection is based on the fact that any fault within electrical equipment would cause the current entering it, to…

Following are the minimum information and Data which to be shown on a transformer nameplate. The standards require the following…

As the size and capacity of the transformer increased, the associated cooling arrangement become more powerful and sophisticated. So, by…

The electrical winding and the magnetic core in a transformer are subject to a number of different forces during operation,…

The main principle of operation of a transformer is mutual inductance between two circuits which is linked by a common…

There are three main parts of a power transformer. 1. Primary winding of transformer – which produces magnetic flux when…