Answer / rajesh verma

The area covered by the lighting arrester depends on the
manufacturer specification and design. it can be 75 Mtr to
250Mtr

how many test is necessary for 27mva transformer.

3 Answers   HEG,

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IF i have switchgear with busbar current rating of 1000Amp 35kA then is it necessary to have outgoing breaker kA rating to be equal to busbar kA rating?

6 Answers   L&T,

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which types of relay used in acb and vcb?

0 Answers   IBM,

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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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why to use freewheeling diode ( diode in revers bias mode) across dc coil

2 Answers  

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what is star delta starter? how it works? give its control and power diagram.

0 Answers   Bhel, Point to Point Solution, Star Wire,

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What is Generator Protection & Transformer Protection?

3 Answers   Areva,

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What is the difference b/w chock and ballast?

2 Answers   Emami,

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Among the following Which is vector quantity? a. Flux b. permitivity c. flux density d. magnetic intensity

2 Answers  

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what is working process of star delta controlling circuit ?

0 Answers  

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I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

0 Answers  

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How do u term the word 'OF' in Megger Testing???

2 Answers  

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