Answer / harikesh yadav

#1 ELCB
#2 UB RELAY
#3 OVER VOLTAGE RELAY
#4 REVERSE POWER
#5 OVER CURRENT RELAY
#6 SHUNT RELAY ETC.

Answer / kedar bhavsar

#1 ELCB
#2 UB RELAY
#3 OVER VOLTAGE PROTECTION
#4 UNDER VOLTAGE PROTECTION
#5 PHASE SEQUENCE
#6 EARTH FAULT PROTECTION
#7 REVERSE POWER PROTECTION
#8 OVER CURRENT RELAY
#9 SHUNT RELAY ETC.

why are the maintaine power factor and how can this control and this is how work.

1 Answers   Mukand,

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Define active and passive network?

1 Answers  

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what is the transformer

5 Answers  

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Piezoelectric materials serve as a source of:- A. Microwaves B. Ultrasonic waves C. Musical waves D. Resonant waves

3 Answers  

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what is overflexing in transformer? setting?

1 Answers  

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what is V.L.F. testing of power cable? do you know the voltage ratings, like for what rating and size of cable what rating of V.L.F. testing is used?

1 Answers   Reliance,

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In all analog voltmeters or ammeter showing some small size symbols. as well as a star and in star 2no. digit, resister symbol,and other. what is that's meaning ?

1 Answers  

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What are the condition for parallel operation of transformers?

2 Answers   Alfanar,

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i am working in automation feild my question is that how to find the KVA of transformer.

3 Answers  

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why the earth terminal of the three pin plug we are using bigger than the others?

2 Answers  

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TO operate transformers in parallel, vector symbol of the both should be same.If one transformer name plate is not there, how can we conclude that whether the transformer is having the same vector symbol or not?

4 Answers  

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Why the ceiling fan has three blades, why not two,four or five?

4 Answers  

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