Answer / subhash pandit

CT is full nane current transfar which use in meter show current & voltage for 415 volt & 220 volt limit. and PT is full name potential transfar which use in meter show volt.& current for 11kv.

Answer / hassan butt

CT current transformer & PT potential transformer is used for measuring & protection of electrical devices.

Answer / azhakesh

current transformer is a device used to measure the current directly beyond 220v and potential transformer is for measure voltage both are instrumental transformer.It is used to isolate the secondary current. It can used as an relay for protection purpose

Answer / murali karri

CT is a step up instrument T/F. Its primary is conected in series with load line and secondary winding is conected to 5amp ammeter.

PT is a step down instrument T/F. Its primary is conected in parellel with load lines and secondary winding is conected to 110V voltmeter.

I have 12MW gas engine based power plant its running parallel with grid. my problem is When cpp run in island mode(without geb) that time geb transformer power factor is 0.2 lagging. When cpp run with parallel that time power factor is 0.94 lagging So how can i maintain power factor ofgeb transformer in island mode 0.9 lagging?

1 Answers   SPCL,

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how to calculate regulation constants for over head lines? and what are the regulation constant for raccoon conductor at different voltage level and different P.F?

0 Answers  

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Can you explain about Restricited earth fault protection scheme

0 Answers   NCC,

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what is the main function of lbb protection

3 Answers  

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how we calculate size of exciter(excit. volt and current) for generator?

1 Answers   century,

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Why birds seating in HT line does not get shock? If person hangs in HT line (single hand or both hands) does he get shock?

15 Answers   SSC,

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How many types of relay are present in a VCB and ACB, what are the tests we can conduct on both breakers and how to set the relays values

2 Answers   Hyundai, Sodexo,

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how to find number of run cable laying[LT side] for transformer & alternator secondary side? [above condition for getting output power transformer to main panel side] give the example.

0 Answers   L&T,

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Difference between ac parallel circuit and ac series circuit?

0 Answers  

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why we use ac?why we use dc? why we we cannot use only ac/dc for all the applications?what happen if we use?

0 Answers  

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If Earthing is poor in a DB of of Residential Building, will residents feel a leakage voltage in a Electrical Ssytem? is this statement true?

1 Answers   Dolphin International,

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As per the theory current doesn’t flows in Neutral, but practically it is not applicable, explain why?

3 Answers  

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