Answer / subhajit mandal

mineral oil.

what is R Core Transformer. how it differs from normal transformers. dont search in net and post the answer.

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percetans

0 Answers   Bhel,

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Dear All, In a 400V power system, ratio of three current transformers installed incoming switchgear is 4000/1. Maximum three phases short circuit current of this system is 48kA. One CT is installed on neutral of upstream transformer (6/0.42kV, solidly earthed) for 51G protection. Would you please inform me about the correct CT ratio of this current transformer (on neutral)?? Thanks a million

2 Answers  

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Why we choose 400kv,220kv,132kv,66kv,33kv transmission voltages for transmitting power. Why not other voltage levels.

21 Answers   College School Exams Tests, HC, HCL, Jaypee, JPMorgan Chase,

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how to calculate of which rating transformer should be selected? take any example

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what is slip what is the use of slip?

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WHAT IS THE REASON OF CHANGE FREQUENCY IN DG SET AFTER FULL LOAD.

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How to calculate the load loss and no load losses of the power Transformer? i am having the following details : full load ct : in AMP HV :1676 ; LV:31.5 1800 KVA ;33KV/620 V for wind mill applications

2 Answers   ReasonSoft,

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how to reduce the transformer size in ups ?

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What is the starting current of a motor?

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i want to do a project on PLC.... please give me an idea.....

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why the AC or DC motor takes high starting current?

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