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KPTCL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Ohms law?

28 19515

check list of maintenance of transformer?

11 100152

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 5222

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

33 132991

define frequency ?

14 12271





what will hapen if secodery circuit is open of current transformer

8 13087

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

4 27716

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

1 5251

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

1 3167

what is broken conductor indication

2 2554

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 1714

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

727

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KPTCL Electrical Engineering Interview Questions


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