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KPTCL Interview Questions
Questions Answers Views Company eMail

The first telegraph line between Calcutta and Agra was opened in (a) 1852 (b) 1853 (c) 1854 (d) 1855

 4 23200

What is Ohms law?

 28 28236

check list of maintenance of transformer?

 11 109045

HOW DOES ONE SELECT A TRANSFORMER PHASOR GROUP IE, WHETHER A STAR-DELTA TR OR A STAR-STAR OR A DELTA-DELTA, ETC. TRANSFORMER IS MORE SUITABLE FOR A PARTICULAR KIND OF LOAD OR WORKING CONDITION???

 3 6535

how to check the earth resistance value& what is the minimum earth resistance for good earthing sysytem.

 33 144426

define frequency ?

 14 16555

what will hapen if secodery circuit is open of current transformer

 8 16050

how can we find a burden of potential transformer? what does it effects? how can we calculate rated load of it?

 4 32613

in 400 kv system why should trip both side CB when we give hand trip?

 1 6677

how to caluclate tds from emloyees and others

 1583

Insulater disk using formula for 33/66/135 line h t line

 1 3983

what is broken conductor indication

 3 3811

We have 11kV/110V three phase indoor potential transformer in 66/11kV Sub-station, where the failure of PT is frequently happening and the rating of the PT is 0.2 class accuracy, with primary star and seconday (two cores) star connected. Some experts has suggested to not to connect the PT Primary neutral to the ground because when transformer neutal NCT connection is loose; the faulty current will flow through the PT primary neutral, resulting into failure of PT. My question is: Is it necessary to remove the primary neutral connection of the PT from ground? if not, what would be the reason for failure of PT. Please guide me.

 2 2789

In my power station 220 volts dc battery set. they coneected 84th cell taped

 1 1449

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KPTCL Interview Questions


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