if single phase is having 220v supply then why three phase is having 440v instead of 660v?

4 Answers   C&S, NTPC,

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why we use sinosidal voltage / current instead of others in system?

0 Answers  

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What is PF? Formula for calculating PF in HT side?

10 Answers   HSL,

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what is the difference between contactors & relay.

2 Answers  

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how to check the LRS resistance .......................

1 Answers  

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what is the acceptable earth resistance value ?

4 Answers  

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whats was the problem if neutral and earth got 2volt from the ups output

1 Answers  

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what is current actully?significance of current...not rate of change of flow.....

3 Answers  

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A distribution transformer giving afrequency of 200HZ, where it is rated for 50HZ. when it will occure?

2 Answers  

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i wasted one year for the job after completed my btech what can i say about 1year time in interview

0 Answers   Infotech,

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we have 400kv/6.6kv transformer ,it has total 9 taps on HV side with normal tap on tap no 5.when we took the ratio test we observed that ratio was decreasing from tap 1 to tap 5 and was found increasing from tap 5 to tap 9.What is the reason?if anyone have related document then please send me on the email id ankushbahale@gmail.com......plz plz

1 Answers  

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What are the advantages of DOL starter?

7 Answers  

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