What is difference between mcb and mccb.

0 Answers  

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In CT, burden is 15 VA and protection 5P20,CT ratio is 100:1 then what would be the knee point voltage ?

2 Answers   ERL,

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what is the standard values(Megger test) of resistances between L&N,L&E and N&E for a system on IEE regulations?

0 Answers  

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what is range ACB

11 Answers  

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What are the different protection systems takes place on control panel board?

7 Answers   BSNL,

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Amoung all classes of electric machines, why the transformer uses oil as one medium of cooling?

4 Answers  

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DG B-check,C-Check,D-check is depending upon the running hrs.If the running hrs is not reached as mentioned.How to conduct the DG checks.

15 Answers   Blue Star,

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what is the difference between energy efficient and high efficiency motors

2 Answers  

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why single phase to grd test in HV cable?why not 2 phase at a time?

0 Answers  

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what is the difference in between short time and continuous rating?

1 Answers  

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how to find the starting current of the motor?

1 Answers   BOC,

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Whats the type of current and potential transformers?

3 Answers  

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