Electrical & Instrumentation Engineer

Electrical & Instrumentation Engineer Interview Questions and Answers for Freshers

Updated 17 Oct 2024

Q1. What are motor starters ?

Ans.

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

Q2. What are the switchgears ?

Ans.

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.

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