what is use of mccb.

1 Answers   Simplex,

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while selecting transformers for 33 kva feeder normally we ask for 33/433 kv why not 33/415

1 Answers  

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Diffrectiate between earthing and neutral

6 Answers   TATA,

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what is meant by 3rd hormonics ?

0 Answers   VRVS,

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what is meant by star/delta voltages as 440/220 in a 3 phase induction motor, and why it should be connected on STAR IN 3 PHASE SUPPLY

0 Answers   L&T,

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L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

0 Answers  

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What are the necessary conditions for production of rotating magnetic field.

4 Answers   BARC,

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what are the main parts of DG? explian thier functions?

8 Answers   Apollo Power, Tata DoCoMo, Tyco, Vizag Steel,

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1.main parts of generator? what is used A-check,B-check,C- check? 2.what is FM200 system in data centers? 3.difference between pac,ahu?

0 Answers   TATA,

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why the transformer ratings in kva or mva?

4 Answers  

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How many types of DC current

2 Answers  

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what is tha online tapping and offline tappchange? which side connected primary or secondary and explain ?

4 Answers   Essar,

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