What's ND relay & it's functions?

2 Answers  

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1.stranded resistance values of motors? 2.how to calculate the resistance values of single phase and 3phase motors?

2 Answers   Bell, L&T,

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no EB power DG is not starting?

6 Answers  

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arrange to send solved question and answer its easy to study and understand the thing, because of Exam is to be conducted shortly

1 Answers  

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how can we change the supply frequency?

8 Answers   Areva,

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What will happen if apply dc source for power transformer

4 Answers  

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On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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how we can know which is Lv side and HV side of transformer by just seeing it?

7 Answers  

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Explain the function of VFD

10 Answers   Dalkia,

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The ratio of white balls and black balls is 1:2. If 9 gray balls is added it becomes 2:4:3. Then what is number of black balls ?

3 Answers   CTS,

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What is called limb of a transformer?

0 Answers  

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In explosive and polluted environments which type of motors do we use?

3 Answers   NTPC,

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