What is transformer, what is OLR

Question

Accepted Answer

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction. OLR stands for Overload Relay.

Transformers are used to increase or decrease the voltage of an alternating current (AC) power supply.
They consist of two coils of wire, called the primary and secondary, wrapped around a magnetic core.
When an AC current flows through the primary coil, it creates a magnetic field that induces a voltage in the secondary coil.
OLR is a protective device that is used to protect motors from damage due to overloading.
It works by monitoring the current flowing through the motor and tripping the circuit if the current exceeds a certain level for a certain amount of time.

What is transformer, what is OLR

Popular interview questions of Maintenance Associate

Top HR questions asked in Toyota Kirloskar Motor Maintenance Associate