Answer / anupnaik21

due to the failure of relay

Answer / kj

The reverse power relay operates when power is flowing into
the machine only.
If the machine is not taking any load it is not in a
reverse power situation. Therefore the relay will not
operate.

in ACB breaker requireding 3200Amps. buscoupler getting OFF mode and again it reset and getting normal position give me a required answer?

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why are we adopting 132kv,220kv for transmission rather than using 440kv at all transmission lines as it gives lower losses?

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How induction stove works?

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is 3-phase induction motor need a starter ? why do it so

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How to calculate earth wire load by formula

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when i am going to take trail on a 3ph sq.i/m motor 5.5kw, i observed that RPM of the motor is very low as compared to the rated RPM and also it rotates in clockwise in first ON command,and anticlock wise in second ON command. finally i observed that on phase is no available . but iam not clear about, why the motor is rotates in both directions without any phase interchanging.pls answer to my question.

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How the surge voltage can be arrested in electronic devices

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What are the protection schemes used for protection of transformers ?

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What happen when ct secondary are open circuited? why same thing is not happen in ordinary transformer?

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how to find the capacitance value of the motor while running??

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1)which height building required lightning arrester? 2)how to calculate the requirement of lightning arrester? 3)what is the pro instrument? 5)how to test protective relay like overload?earth fault relay?

1 Answers  

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