in electrical fire which group fier Extinguisher as used

6 Answers  

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What is the reason of polyphase induction motor tripping suddenly on high current during running at 70% laod? Motor IR , winding resistance & inductance balance. Motor no load current is balance and ok as per mgfr. data.

0 Answers   GNFC,

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I have recently seen a transformer which had two primary terminals and was connected between two lines,i would like to know what kind of transformer is it?short discription about it,any advantages,purpose of usage of the same.............

8 Answers  

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In 11/0.414 KV Parralel supply network with Bus tie closed what will be the fault level is it doubled or halved??

0 Answers  

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10 hp motor ,7.5 kw ,960 rpm, full load current 15.5, delta connection so how much take current no load trial time. any formula please give..... second question :- what is different between brekar control wiring and motor starter control wiring

1 Answers   MSP,

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what is difference between differential protection and distance protection and how we calculate the sloop?

5 Answers   OPS, Power Grid,

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why is corona loss greater in a stranded conductor as compared to a solid conductor ?

2 Answers  

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What should be the conservator minimum oil level required in 2 mva transformer

2 Answers   JSW,

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practicalLY what is impedence ...?

2 Answers  

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I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

0 Answers  

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differentional compound gernater used for wielding porpose. why????????//

2 Answers  

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Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

0 Answers   DAE, Tata Chemicals,

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