What safety precaution are to be taken for avoiding electric hazards ?

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if there is nutral in phase why we use earthing wire and grounding? even at fault condition the fault current flows to neutral (it is a lower path)

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if two heater of rating 1KW,200v are connected in series 100v supply what will be the power taken

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Ash AAAC conductor is used for which KV lines

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Hysteresis loss in a core is due to what reason or property of the material used for that core?

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On a transformer name plate %IZ(%Impedence) is mentioned. What is the meaning of %IZ and how it is calculated?

3 Answers   Ambe Consultancy, Siemens,

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why we still use sinusoidal waveforms for transmission and utilisation (we know generation is sinusoidal), instead of other ac waveforms such as triangle, sawtooth, square etc.,? is there any mathematical derivations to prove sinusoidal is efficient than others?

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Operation carried out in thermal power stations?

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in delta connection, why motor rotate in high speed compared to star connection?

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temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

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while checking the flourscent tube elctrodes some glow is cominag. this type of glow tube working or not working

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we have 400kv/6.6kv transformer ,it has total 9 taps on HV side with normal tap on tap no 5.when we took the ratio test we observed that ratio was decreasing from tap 1 to tap 5 and was found increasing from tap 5 to tap 9.What is the reason?if anyone have related document then please send me on the email id ankushbahale@gmail.com......plz plz

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