At 765Kv, I have seen the use of PT at line side for metering and CVT for protection, although as far as my knowledge is concern, PT at this voltage level will have huge loss and more cost as compared to CVT as CVT can also perform same function of Protection and Metering? So my question is why use PT and not CVT for metering and protection in order to reduce the cost.

1 Answers  

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what is the purpose of %impedance for transformer

3 Answers  

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why does the magnetic balance tests at transformer?

0 Answers  

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whats the reletion betweet flow,pressure,head,rpm and motor rating?

1 Answers  

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In power point wiring,often,we use less size of earth wire compared to phase & neutral wire and we use big size pin in pug top. how is it justified? can we use small size cable for earthing?

3 Answers   HAL,

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In a poly phase circuit if clamp on meter shows same load on three phases and their sum on neutral then why we use three and a half core cable or maximum the same size of core as that of phase?

1 Answers  

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difference between the earthing,grounding and neutral

1 Answers   DLF, L&T,

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when we switch on the switch and load is not connected at home,is electricity wasted?

1 Answers  

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what is the use of breather in transformer?

4 Answers  

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How to discharge the battery as quickly as possible ?

1 Answers  

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What is fuction of NGT/NGR using in Generator.

9 Answers  

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What is Hot reserves and spinning reserves?

1 Answers  

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