What's the part of OTCC in transformer?

7 Answers   Bhel, RRB,

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The reason why the sending end and receiving end voltage sare almost equal when capacitive load is added.

4 Answers  

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The control system is used for?

3 Answers   CCP, NTPC,

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What are the various reasons for an inductin motor to get heated?

1 Answers   Monnet,

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IR value for 30kw lt motor

1 Answers   Hofincons,

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What is installed in PAC that is control the humidity

0 Answers   Sodexo,

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how much percentage set in transformer diffrencialrelay

1 Answers  

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what is the formula to calculate the fuel consumption of a diesel generator at different diferent load.

4 Answers   Aegis, Network Clothing Company,

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what is the difference between AHU and FCU .

1 Answers   JLL,

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how to calculate the bus-bar size. give formula with description

1 Answers  

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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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There is one 40MVA oil cooled transformer (yet to commission), filled with 95% oil and we are trying to fill 5% Nytrogen in that transformer so that there should not be any foreign component inside. But even though there is no leakage, nytrogen is not withstanding inside transformer, within a day or two pressure guage is showing 0. Why is it soooo? Pls reply.

1 Answers  

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