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Functions of Protective Relay | Power System Protective Relays

In electrical engineering, a protective relay is a relay device designed to trip a circuit breaker when a fault is detected. ... By combining several functions in one case, numerical relays also save capital cost and maintenance cost over electromechanical relays.

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Functions of Protective Relay | Power System Protective Relays

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  1. Welcome To System Protection www.systemprotection.in

  2. About Us Ensuring a constant blood flow in your body is the doctors’ job, ensuring a constant power supply to your industrial plants is ours. And we take our job seriously. We at System Protection are a team of experienced and enthusiastic professionals who ensure that your operations are safe, economic and efficient. Our core expertise lies in performing vital and reliable field services in the areas of Electrical Testing, Commissioning, Maintenance and Consulting. A brief overview of our diverse set of services is as below : www.systemprotection.in

  3. Functions of Protective Relay www.systemprotection.in

  4. These are the main functions of protective relay: www.systemprotection.in

  5. To sound an alarm or to close the trip circuit of a circuit breaker so as to disconnect Faulty Section. www.systemprotection.in

  6. To disconnect the abnormally operating part so as to prevent subsequent faults. For e.g. Overload protection of a machine not only protects the machine but also prevents Insulation failure. www.systemprotection.in

  7. To isolate or disconnect faulted circuits or equipment quickly from the remainder of the system so the system can continue to function and to minimize the damage to the faulty part. For example – If machine is disconnected immediately after a winding fault, only a few coils may need replacement. But if the fault is sustained, the entire winding may get damaged and machine may be beyond repairs. www.systemprotection.in

  8. To localize the effect of fault by disconnecting the faulty part from healthy part, causing   least disturbance to the healthy system. www.systemprotection.in

  9. To disconnect the faulty part quickly so as to improve system stability, service continuity and system performance. Transient stability can be improved by means of improved   protective relaying. www.systemprotection.in

  10. To minimize hazards to personnel. www.systemprotection.in

  11. Click For Here Protective Relay Services www.systemprotection.in

  12. www.systemprotection.in

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