Answer / mrudang

in HV CT the secondary voltage should be around Vk>400v

because in differential protection , we have to maintain
relay input of 1 Amp or 5 Amp

How can we calculate the current if we have load in KVA and if the load in KW then what formula will be use for calculating the current. please give both the formula for calculating the current.

3 Answers  

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using in R,Y& B PHASE LTSIDE(415V)ct ratio 4000/5 WITH ENERGYMETR OF 1280 REV./KWH,240V.WHAT WILL BE MF OF METRE.

1 Answers   HCC,

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Which Class insulation is prefered for the sandwich Busducts ? Why?

0 Answers  

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hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

0 Answers   Vizag Steel,

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Hi, I'm running plastic reprocessing company where all motors are running only in delta. Due to that when I use start my 30 hp motor my transformer gets fuse. Where it happens two times a day. I gt a suggestion from a person about Automatic Power Factor Controller APFC. Is it useful for my problem??? Or is der any other way for solving this problem?? Upgrading the transformer is difficult. Pls give Me ur suggestion. Waiting for ur reply.

2 Answers   Shree Lingaa Polymer,

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How much current can 11KV line carry? What are the formulae used to calculate current across both side of transformer? Moreover I need to know can I connect 33KV line with transformer of 1600KVA? Details are: V=415, Pf= .9

3 Answers  

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How much area is covered by a single lightning arrestor to protect object from lightning strokes ?

1 Answers  

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when we catch any one of the phases with our both hands in air(without touching ground),our body acts as a conductor.is it correct.please clarrify it.

4 Answers  

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what is pf. how to calculate capacitor bank value to maintain unity pf.

18 Answers   JH, Saint Gobain, Supreme Treves,

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what is the power factor of the megnetising component of transformer

1 Answers   Allied Group,

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For DG set,if the loading is increased,does flue gas temperature increases or not?

2 Answers   NTPC,

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what is the responsibilities of electrical project engineer?

2 Answers  

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