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KPTCL Electrical Engineering Interview Questions
Questions Answers Views Company eMail

What is Ohms law?

 28 28374

check list of maintenance of transformer?

 11 109173

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 6561

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

 33 144637

define frequency ?

 14 16683

what will hapen if secodery circuit is open of current transformer

 8 16101

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

 4 32678

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

 1 6702

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

 1 4012

what is broken conductor indication

 3 3843

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 2820

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

 1 1478

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KPTCL Electrical Engineering Interview Questions


Un-Answered Questions

Is there an easy way to delete an element from a php array?

476

What is java spring framework used for?

142

1. Why some companies are not deducting the TDS or WCT on their clients Invoice.,? 2. How companies are getting exemption from Deduction TDS or WCT. ?. 3. What are the procedure for not to deduct the TDS or WCT on client invoice while making payment for their Invoice.?.

2224

Do you need antivirus if you have windows defender?

416

What are the types of relationships applicable to salesforce?

181




I am having a 1500 KVA transformer whose secondary current is 2086A and my connected load is 1000 KVA, I am having 400 KVAR APFCR for PF improvement what ratio of CT should i install in LT EB Bus to get optimum PF improvement?

1317

What is the main biological function of ribosomes?

515

Why box sizing border box is used?

287

What is the role of silicon as alloying element in steels ?

643

What does it mean to debug a script?

569

Do while loops python?

461

Does spark use java?

201

What are the ado.net objects?

510

What is the difference between the Internet of Things (IoT) and the Sensor Business?

5

Which function is used in php to count the total number of rows returned by any query?

518