Answer / vinod

IN STAR CONNECTION THE VOLTAGE IS REDUCED TO SQRT(3),SO
THERE IS REDUCTION IN VOLTAGE & PROVIDES SAFE STARTING

Answer / raj

iT ALSO DEPENDS ON THE SYSTEM FAULT LEVEL OTHERWISE EVERY
ONE USING DOL STARTER.IF THE FAULT LEVEL IS WELL SUFFICIENT
U CAN USE DOL STARTER.

Why mostly conductor made by 7 nos wire?

2 Answers  

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why transformer comes only in standard rating like 11kv,33kv,66kv....and not like 33.33kv and so on?

3 Answers  

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For electrical designers what are the standard should know? i want learn about this standards. how to get information/reference. anybody help in this regards please.

0 Answers  

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before transformer oil dielectric strenght tests are taken the oil should be allowed to settle to remove option 1 air bubbles 2 gasses 3 contamination 4 water

0 Answers  

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Why don't connect earth wire to elcb?if earth fault occur,how will detect it

1 Answers   TATA, Tata Communications, Telecommunications,

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how to calculate short circuit current for the busbar

0 Answers   HMK,

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what is the difference between earthing and unearth

0 Answers   Apple, NTPC,

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what is the Auto Mains Failure Panel function in DG?state its function?

3 Answers  

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why ac current do not save

3 Answers  

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How should i design a 1ph & 3 ph transformer. Kindly let meknow all steps and formulaes related to design from scratch.

0 Answers  

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In our factory so many iron pillors are exists for supporting the shed/Hangar. If do more no of earthings at one piller instead of doing more earth pits in many locations and running earth strip around the hanger, I can save the money. Please suggest this method is acceptable as per Is specifications though the Earth resitance of the farthest piller is with in the limits as per IS specifications.

0 Answers   HAL,

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Where can I get CPWD electrical shedule rates in web? please help me.

1 Answers  

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