Answer / c.hari balakrishnan

Nickel cadmium batteries are maintenance free batteries
and cost is high comaparing to lead acid batteries.
Sulphation formation is not so much frequent in NiCad
batteries,But in lead acid batteries regular maintenance to
be done.

Why ACB is used in LT why not in HT and why VCB is used in HT why not in LT

1 Answers   GE,

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what is the speed of current?

29 Answers   Su Kam, TATA,

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what is consequences of neutral and earth connect?

0 Answers  

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can you tell me/show me, how to manually synchronize 2 DG. preferred with video.

2 Answers   Cummins,

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Can RCD's used to protect the VVVF drive if not why.

0 Answers  

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Dear all i am kumaravel. now in chennai. my work is control and relay panel auto cad designing.up to 11kv to 400kv then question is i am improving my knowledge. i want some books name and auther are available for this C&R panel related. plese any one help me

0 Answers  

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what is mean by busbar and what is the difference between busbar,transmissionline,feeder,distribution line

0 Answers  

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how to convert star network in delta or vice versa...?

1 Answers   Toyota,

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wat is the first thing dat is needed, 2 lay a cable in some area??

0 Answers  

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why can't we increase the voltage by increasing the field voltage in order to get higher voltage.so that we can eliminate step up transformer

4 Answers   Bhel,

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what is different between IP55,IP54 and IP66?

2 Answers   ABB, Global Industries,

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Size of the 60Hz and 400Hz transformers is a) same b) 60Hz Tr s larger than 400Hz Tr c) 400Hz Tr s larger than 60Hz Tr d) None of the above

5 Answers   Ecil,

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