Answer / ashish gupta

All dielectric are insulators.But all insulators are not dielctric.Becoz dielectric material is used to store electrical energy where as insulators can't.

Answer / mostafaghodrat

As insulation between the energized equipment
Is isolated and not connected to any equipment live even
with insulation

what is SMDB

6 Answers  

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Pls say , how we calculate lux / sq.ft, which formula used for calculation

5 Answers  

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1. What does mean of "PS" stand for Diff. CT class? 2. What is the formula of KW for 1Phase load inturms of voltag,current & P.F.?

4 Answers   Hero Honda,

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How we select the cable rating

1 Answers   BTM, Videocon,

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what is the voltage between nutral and earth?

2 Answers  

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I am getting diesel genset 62 kv for my house In addition there are 6 meters of 11kv for the house Lift also being installed for house plot sise 200sq yds total 4 + 2 foloors I want to know how much earthing required how deep it should be

2 Answers  

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why transformer rating comes in kva?

4 Answers   HNG, Tech Mahindra,

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what is meant by reactive power ?

5 Answers  

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do you know measure the earth resistance?explain

1 Answers   Dalkia,

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What will happen if power transformer designed for 50 Hz is connected to 500 Hz of the same voltage , and vice versa ?

1 Answers  

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What is meant by CFL & PL lamps

1 Answers  

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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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