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Showing posts from January, 2018

What Is Feeder Protection Relay?

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Feeder Protection Relay Image credit - Ashida Electronics Feeder Protection Relay Image Credit - Ashida Electronics Feeder protection is defines as the protection, which work as the shield guards and making sure that power grid must be supply the energy continually. The feeder will help to inject the power energy from the substation to the load end. So, it is one of essential protection relays in the feeder from the various types of fault. There is some requirement for feeder protection relay to make run at power system – ·         Whenever short circuit going to happen at electrical power system, that time circuit breaker must be close to the fault and should be open and all other circuit breaker remain in closed position. ·         We need to set small operating time to maintain the system stability. ·       When fault going to occurs on the protective feeder, the feeder protectio...

What is protection relay?

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Protection Relays are an electric device that is manufacture to input some technical condition in such a manner so whenever protection relay met that condition than relay going to react in such a manner to protect electrical system from electrical unnatural & naturel fault. Some of following is example of fault like short circuits, abnormal condition and equipment failures etc. The main purpose behind the protection relay is protect power system, improve electrical system stability, minimize or reduce natural or unnatural damage and protect against the overloads. Generally, we protect our generators, transformer or reactors, lines, buses, capacitors in electrical power system.   Protection relays are monitoring the electrical current or voltage of power system to detect the problem which can be incurred in future. CT’s & PT’s is help to supplier electrical current or voltage in power system. Protection relays help to make protect, control & monitor ou...