Types of relays in power system

The three main types of relays are electromechanical, solid-state, and reed.

1. What are relays and its types?
2. What are the 3 main parts of a relay?
3. What are the classification of relays?

What are relays and its types?

So relay is a switch which controls (open and close) circuits electromechanically. The main operation of this device is to make or break contact with the help of a signal without any human involvement in order to switch it ON or OFF. It is mainly used to control a high powered circuit using a low power signal.

What are the 3 main parts of a relay?

A relay contains a coil, an armature, and at least one pair of contacts. Current flows through the coil, which functions as an electromagnet and generates a magnetic field. This pulls the armature, which is often shaped as a pivoting bracket that closes (or opens) the contacts.

What are the classification of relays?

Classification of relay can be mainly into two types: mechanical relays and solid state relays.