what is the maximum permissible limit value of leakage current and leakage counter reading to replace lightining arrester?

0 Answers  

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Why and which type of tertiary winding is used in most of the power transformer?

2 Answers  

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wat is the difference between real power and reactive power..which is useful..?and how it s useful..wat is the effect of these on a power system...

10 Answers   ABB,

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When semiconductor fuse does save thyristor in each cycle of conduction? Why under voltage setting keep less in SPRS and more in DC drive?

0 Answers  

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what is the difference between transformer and amplifier ??

5 Answers  

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why we use condenser in the thermal power plant, althrough the same vapour will be again heated

0 Answers   Bhel,

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FOR 16/20 MVA 132/33 KV ONAN/ONAF TYPE TRANSFORMER IT IS DESIGNED FOR 16 MVA WITH ONAN CONDITION.IT BECOMES 20 MVA UNDER ONAF CONDITION.LOAD LOSS IS GUARANTEED FOR 65KW AT 20 MVA AND % IMPEDANCE 13.75. PLEASE TELL US AT WHAT LOAD LOSS AND % IMPEDANCE IT SHOULD BE DESIGNED FOR 16 MVA AND WHAT WILL BE ITS EFFICIENCY AT 20 MVA?

0 Answers  

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Detailed working of a diesel generator set ?

1 Answers   Airtel, Honda, Kirloskar,

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What will hapen if we run generator below 47.6hz frequency?

9 Answers   TATA,

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Please give me the formula stating relation between AC & Dc.

2 Answers   JP Group,

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Dear Sirs, I am a technical persons.In one of our Electrical Sub- Station, We have installed three numbers of 1250KVA ,11KV/0.415KV Transformer to feed the Factory load. We have found some abnormality. In one of our Transformers the leakeage current from transformer body to earth through earth continuity wire is almost 86 Amp but in other transformer it is (5-10)Amp. where the load current on three phase and neutral are respectively 1360Amp,1400Amp,1370 Amp & 176Amp. So please any technical person help me about the reasons of this situation and how I can rectify the fault. Moreover,I have measured the earth resistance of the Earth continuity wire which is less than 1 Ohm. Thanks Tapas Barua

3 Answers  

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How much maximum power can be transmitted on 66 KV transmission line?

1 Answers   Konark, NDPL, Torrent Power,

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