What is the approximate percentage of Si content in transformer core(CRGO-Cold Rolled Grain Oriented)? Why it is kept so low?

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what is the effect of connecting three phase supply lines to three phase auto transformer output terminals through a fuse of 10Amp and a circuit breaker (MCB). Is this connection permanently destroy the transformer?

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why electronic instruments is more favorable than electrical?

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I want formula to calculate current loss with distance in km.I searched many sites but didn't right answer.Plz reply me

0 Answers   SECL,

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a power supply to be constructed from voltage cells is required to provide Max. 20A Current with a terminal voltage of 6v.Several voltage cells are available each of which has terminal voltage of 1.5V & each of which can supply a max current of 5A .the no of cells required will be ??

5 Answers  

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a distribution transformer(3 phase)supplying 440volt per phase.now suppose one of phase voltage(230volt) becomes zero.what will be the cause ?

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Why an ac systems are preferred over dc systems?

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Can earth resistance be measured without connecting the earth electrode? and should earthing connections be disconnected What is the effect of connecting two cables of different sizes in parallel with supply? Thanks in Advance. I am intrested to get in touch with some tecnocrats/engineers,my mail i.d is : hiremathvijay@rediffmail.com

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Two 11 kv lines are feeding to common bus in a substation,I have one set of CT & PT(3ct,2pt), How can I measure both lines power using single set.

6 Answers   L&T,

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we have 350 kva capcitor bank which is not showing KW. dose capacitor shows kW OR not.

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how electical engineer is related to apsrtc (general) post? if they ask a question in interview as why did u choose this job what shd be answer

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What is effect of low pf on HT supply.

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