Answer / subbiah

i think DC motors can use where variable speed required and DC motors normally using at low voltages.....

why to use 50hz only in tansmisson and as well as in distribution why not60hz?

2 Answers  

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why transformer cannot rotate though the princplebehind induction motor is similar to a transformer?

2 Answers   GE,

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Hi,i want to appear for IES (EEE),can any one plz help me how to apply and how to prepare

1 Answers  

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Why Transformer in KVA?

41 Answers   APCPDCL, Apollo Power, College School Exams Tests, Electrical Tech, Hitech, HP, L&T, MDL, Oil and Gas Jobs, TATA,

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What is WLD System????

3 Answers   Emerson, HCL, Honeywell, Tata Communications,

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why are we maintaining some specific gravity in battery ?

5 Answers  

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HOW TO SELECT THE COPPER CABLE SIZES OF MOTORS,TRANSFORMERS?

0 Answers   Eastern Produce,

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single sphase energy meter measur

7 Answers  

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WHAT HAPPENING TO TRANSFORMER???? i have the step down transformer rating 230/12v, power rating something.,,, ok. suppose iam giving 12v to secondary side,what will happen on primary side.,,,

6 Answers   Coastal Energen,

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How to find Cable size? Caterpillar generator produce (Two generators) 127*2=254 amp at 11 kv . What would be the cable size (XLPE) to supply 256 amp at 11 kv? Air or surrounding Temperature is 32 degree C. Cable will go under ground at 2.5 feet depth. Group Rating Factors is 3 cables. Clearance between cables is 7 cm. Soil Temperature (Ambient) 28o C Soil Thermal Resistivity is 1.2 K.m/W I would like to use 3 separate single core instead of using 3 core cable. Some says I should use three separate single core 120RM cables. Some says 70RM .some says 95. I m totally confused. Is there ant specific rule to determine cable size? What would be the LT cable size to flow 500 Amp current? Ifte My e mail address is ifte13@yahoo.com Anyone please send me the answer to my e mail address, i will be very glad.

1 Answers  

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how to find out this one mcb r mccb?

4 Answers   L&T,

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i have install 750 kva distribution transformer at my site and want to do neutral earthing. what calculations should i follow to determine earthing conductor material and size?

0 Answers   MTDC,

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