why is it that the HT motors & motors having very low kW rating(<1kW) have windings connected in STAR, whereas the motors having in between kW ratings have DELTA connected windings??

5 Answers  

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what are the protections used in power transformers of 5 mva and above

2 Answers   ESRI,

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why the generator efficiency is greator than motor?

4 Answers  

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how we calculate fault current& load factor or fault level&also the leakage current

1 Answers  

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what is the response time of relays when a FAULT OCCURS IN A POWER SYSTEM?

2 Answers  

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Hoe to calculate body earthing conductor size ?

1 Answers   IES,

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a.c&d.c motor&generator

2 Answers   Vizag Steel,

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What is the physical significant of power factor?

0 Answers   Cooper,

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wht d.c produces corrosion

1 Answers  

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What is diference between ELCB & ELMCB?Also how its application for use in design area?

2 Answers  

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How many types of electrical earthing are there?

0 Answers  

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why in large rating C.T.s equipotential wires are used?

2 Answers   Essar,

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