Answer / nesalinpraju

DOL is Direct on line starter, it is used upto 50 H.P Motors
star delta connects motor first in star at the time
ofstarting then in delta for running.

Answer / pswin

I have seen in books that says DOL starters are used up to 50 hp(roughly 37 kw). In my project in singapore, 19 pumps of 160 kw are all start by DOL.(May not start all in one time). It is equal to 214 hp each.

why voltages are added when batteries are connected in series?

4 Answers  

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where is core-type and shell-type construction suitable for transformers ?

0 Answers  

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HOW WE CALCULATE CURRENT IF THERE ARE NOT PRESENT ANY AMMETER OR MULTIMMETER??????

0 Answers  

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why current increases when voltage decreases in ac system

10 Answers  

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what is difference between earthingpits,earthing grid & earthing mess?

0 Answers   TATA,

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what is the power factor of the megnetising component of transformer

1 Answers   Allied Group,

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10 Answers  

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4 Answers  

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1 Answers  

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0 Answers   Dhanam Enterprises,

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8 Answers  

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define reluctance motor & its operation ?whether its operating single phase or three phase ?

1 Answers  

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