Akshar Group Test Engineer Interview Questions and Answers

Different types of relays used in industries include electromagnetic relays, solid state relays, thermal relays, and overload relays.

• Electromagnetic relays use electromagnets to operate the contacts.

• Solid state relays use semiconductor devices to switch the contacts.

• Thermal relays operate based on the heat generated by the current flowing through them.

• Overload relays protect motors from overheating by monitoring the cu

Various protections used in transformers include overcurrent protection, overvoltage protection, differential protection, and temperature protection.

• Overcurrent protection: Protects against excessive current flow through the transformer.

• Overvoltage protection: Safeguards the transformer from voltage spikes or surges.

• Differential protection: Monitors the difference in current entering and leaving the transformer to dete...read more