Answer / heeth

usually power transformers are designed to run at an
optimum efficiency nearing to full load rating. So usually
power transformers are loaded around 90% of their rated
value..

It is advisable 2 use auto-transformer if transformation ratio is-a)110KV/11KV,b)230kv/110kv,c)110kv/66kv,d) 400kv/230kv

2 Answers  

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In which reason, one end of CT secondry get connected with Earthed? Normaly S1 of CT. Why????

1 Answers  

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last week we did the REF relay test by closing single pole (R phase) of CB and apply 380V at the primary of delta transformer. we get 33A at the primary of the R phase star end. but we get 380A at both R an B in delta side. how and why?

1 Answers   Siemens,

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what is the meaning of "i.p.-43" and duty cycle-s1 on the name plate of a asynchronous machine?

1 Answers  

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How servo stabilizer works.

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What will Happened if the polarity of CT is changed?

13 Answers  

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What is an Isolation Transformer? Where it will use?

3 Answers  

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All the socket in a room become very hot, the Wall was also became very hot and the earth conductor also became live, what in your view might be the possible causes?

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Is 2000kva stabilizer suitable for 1h.p split air conditional

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1.How to calculate backup time from series connected battery of 12v dc with 26Ah for 2battery?

3 Answers  

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What is bushing?

4 Answers  

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in electric lamp what is ballast. y its needed to start & stop lamp. what is ballast ckt.

0 Answers  

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