My requirement is 1VA,50/5A Current Transformer for Metering .If I select 15VA , 50/5A CT.Is there any possibility of Technical Problem ?

6 Answers  

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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 stray capacitance?

1 Answers  

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what is the reactive power what is the use of it in system

0 Answers   L&T,

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As we know multiplicity factor derivation equation is as below MF = main c t ratio / main p t ratio * meter c t ratio / meter p t ratio * meter dial constant Where in digital meters for HT kwh import export now a days meter constant are calibrated already which is 1 So my question is For HT 11kv 110 v line values are as below Main c t and p t ratio are 11000 v and 110 v and 20/5 means 20 amp and 5 amp Now meter values are 11000/√3/110√3 and primary and secondary amp are displayed as -/5 amp on kwh meter so what will be the MF for this meter ?

1 Answers   NEPC,

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Explain what are inter-poles and why they are required in a dc machine.

0 Answers  

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In DC motor,the field MMF is given by NI.N-no.of field winding turns,I-excitation and both are constant.Then how could the main flux decreases due to armature reaction.

4 Answers   Bhel, IBM,

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1.What will be stored in online ups EPROM IC?

0 Answers   IBM,

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what is the standard duration after failure EB power

0 Answers  

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what are factors to be consider in electrical installation like load factor,diversity factor .....

0 Answers  

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what are the specifications we must look at to select a relay for any capacity motor?

0 Answers  

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Difference between MCC and PDB

3 Answers   BARC, CDS, NINL,

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