How to Test a Three-Phase Motor with a Megger?
In this post, we will discuss how to test a three-phase motor with a megger. We use a megger to test the insulation level of
Electrical
Lightning Arrester-Definition, Working & Characteristics
Lightning Arrester is a device used for the protection of electrical equipment against lightning stroke. The lightning stroke is the high voltage transients caused by
4 Point Starter- Construction, Working & Its Application
The 4-Point Starter is almost identical in performance features to the 3-Point Starter. It limits the starting current in a DC motor in the absence
What is PS Class CT? Its Characteristics
PS Class CT is a special class CT used for differential protection of HT motor, generator, and transformer. The PS class CT is also called
ANSI Device Numbers
The ANSI standard device numbers ( As per ANSI/IEEE standard C37.2) are used in the design of an electrical power system. These devices protect the
Why is grit Laid in the electrical switchyard?
Grit in the electrical switchyard is laid to make the upper surface of the soil more resistive. The more resistivity of the soil decreases the
Electrical Earthing- Its Types & Importance
Electrical Earthing is the process of transferring electrical charge to earth with the help of a very low resistance wire. The equipment part that is
Capacitive Reactance
Capacitive reactance is the opposition offered by a capacitor to the flow of electric current through it. The capacitive reactance depends on the frequency. We
Difference between Contactor and Relay
In this post, we will learn what is the difference between contactor and relay. We use contactor and relay in almost all electrical circuits. We
Classification of Relays | Different Types of Relays
In this post, we shall discuss different types of Relays like Latching Relay, Reed Relay, Solid State Relay, Differential Relay, Automotive Relay, Timer Delay Relay,