What is Grounding? any difference b\w earthing? if yes plz explan??

3 Answers   ABB,

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What is the function of trip neutral close switch?

11 Answers  

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. Draw the vector diagram and condition for the following: 1) Dyn1 2) Ynd0 3) YnYn0

1 Answers  

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some time we open engine breaker 8.0 MW load but plant not trip. and another time engine open 4.0 MW load engine trip why? individually engine breaker open & individually emergency stop why difference?

0 Answers  

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what is the meaning of Dd0yn11

2 Answers  

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Types of tempering of energy meter?

1 Answers   Nespak,

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which %age if losses increases when frequency is increased to 25%

4 Answers   Maihar Cement, Siemens,

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How can identify meter AC or DC without use of symbel?

4 Answers  

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what is the purpose for open delta connection in potential transformer

2 Answers  

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what can i do, if i want to carrier in design as i am electrical engg?

3 Answers  

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Why sometime AVR and sometime Booster coil is used in Alternator? what is the diferance between AVR & Booster coil due to which they are selected

0 Answers   Bajaj,

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A group of machines (wind turbines) connected with 33KV feeder and each machines are having individual VCB. The 33KV feeder connected with 110KV/33KV substation. The 33KV feeder tripped by over current at Substation and fault recorded at Substation as OC-R&Y phase. Same time the group of machines VCB tripped by over voltage, the fault recorded voltage was above 66KV by numerical Under/Over voltage relay. While grid drop time, this much of voltage hike is possible?

1 Answers  

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