Answer / rambabu

above is correct but the ct is current transformer for
measuring current and pt is measuring voltage in
sub-stations.these are using in HT sub stations only 1100v
and above.

Answer / kbonn

For example u have 100MVA transformer 66KV line
your CT ration 100,000,000/1.7320x66,000=874.77
so you can used CT ration 1000/1A

Answer / chandu

Current Transformers (CT’s) and Potential Transformers
(PT’s) are suitable located for supply to metering and
indicating instruments and relay circuits. CT’s are
connected at the terminals of each circuit breaker and PT’s
are connected right on the point where the line is terminated.

what are the available sizes of pin type terminal lugs in the market today?

0 Answers  

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when we supply in primary side of transformer then the supply goes in secondary side?how it works?

4 Answers  

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what's the thickness of 1.5sqmm wire

1 Answers   Bhel,

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what is the principle of generator, motor, and transformer and explain the definiton of flemings left hand rule , right hand rule and ohms law

2 Answers   NFCL,

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What is the difference between AVR and Servo Stabliser

3 Answers   Wipro,

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what type of battery used for starting D.G?state its function?

2 Answers  

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Why the Transformer Nuetral is grounded?

10 Answers   Infosys, Khartoum Refinery,

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how to calculate vfd o/p voltage by frequency

0 Answers   HCL, Orchid,

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how to handle 2500 kva transformar

0 Answers  

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what happen to a dc series motor if it given as ac supply accidentaly

2 Answers   ONGC,

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does frequency affects the load? if yes elaborate it.

1 Answers  

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pls send me some of the solved question booklet of Junior Engineer -2 (ELE) in RRB

1 Answers   RRB,

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