Electrical & Instrumentation Engineer Interview Questions and Answers for Freshers

Motor starters are devices used to start and stop electric motors safely and efficiently.

• Motor starters control the flow of electricity to the motor, protecting it from overloads and short circuits.

• They typically consist of a contactor, overload relay, and control devices like push buttons or switches.

• Motor starters can be manual or automatic, with features like thermal overload protection and phase loss detection.

• Examples of motor starters include direct-on-line starters, st...read more

Switchgears are electrical devices used to control, protect, and isolate electrical equipment in power systems.

• Switchgears are used to control the flow of electricity in a power system.

• They protect electrical equipment from overloads, short circuits, and other faults.

• Switchgears can isolate faulty equipment to prevent damage to the rest of the system.

• Examples of switchgears include circuit breakers, fuses, and disconnect switches.