Breakdown Engineer Interview Questions and Answers

Buchholz relay is a protective device for oil-filled transformers and reactors.

• Buchholz relay is used to detect and prevent incipient faults in oil-filled electrical equipment.

• It operates based on the principle that gas is generated when a fault occurs in the transformer or reactor.

• The gas accumulates in the relay and triggers an alarm or initiates a trip to isolate the equipment from the power source.

• Commonly used in high voltage transformers and reactors to prevent catastro...read more

A transformer is an electrical device that transfers electrical energy between two or more circuits through electromagnetic induction.

• Consists of two coils of wire (primary and secondary) wrapped around a core

• Primary coil receives electrical input and creates a magnetic field

• Magnetic field induces a voltage in the secondary coil, transferring energy

• Used in power distribution, voltage regulation, and electrical isolation