Answer / srilu

decrease starting current by 1/3 times of rated current to
avoid burning of motor during starting

Answer / pillay

clear advantage is you will have a smoother starting and
reduced starting current.It can be beneficial mechanicaly
also for example the dol stared belt driven fan will have
more belt wear and tears compared with star delta connected
starters.

Answer / arun kumar rayguru

When the supply voltage is lower than the rated voltage we generally use star delta starter to avoid the over load trip. But in DOL starter, supply rated supply voltage need to start the load

Answer / liliosa b

it is cheaper compared to other reduced voltage methods

how does ELR works? explain

0 Answers  

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when ID fan will immediately stop through VFD what exactly cause and problem the ID fan

0 Answers  

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What is VCB? where it is installed at SP. What is SP?

0 Answers  

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If Three Runs of 1Cx300 Sqmm Cable between Transformer and VCB and the distance between 100mtrs. what will be total length of Cable and if cost 1500Rs per meter,what would be the total cost

1 Answers   ANITS,

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why transformer is rated in kva instead of kw?

1 Answers  

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What is a dc motor?

0 Answers  

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What are the causes of electrical faults?

1 Answers  

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how to calculate busbar size? ex:11000kva main what is the busbar size ?and how to select the correct one

4 Answers  

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Is LV shorted in magnettic balance test?If yes why?

2 Answers   Hindalco,

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prefer any good electrical engineering book.....it should be useful in the practical fied?

1 Answers  

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with out colour codeing on conductor how can be find what is r,what is b,what is y phases.....

0 Answers   Divis Laboratories,

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tell how current tranfomer works

2 Answers  

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