ELECTRICAL ENGINEER TEST IN FEWA ANY ONE HAVE KNOWLEDGE ABOUT THIS?????????

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Explain in details how you would react to an unexpected incident when your supervisor or manager is not around to give instructions?

1 Answers  

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what is the working principle of dc motor & its application ?

3 Answers  

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To avoid arcing what we connect in earthing.

4 Answers   HAL,

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Why ground terminal is used in pot meter 10k ohms

0 Answers   Mahle,

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why transmission line 11Kv OR 33KV,66Kv not in 10kv 20kv?

43 Answers   A2Z Group, Baiji Power Plant Gas, Electrical, HCL, Kirloskar, Mepco, NEPC, OAMC, UNI, University of Lahore,

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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 Answers   KPTCL,

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megger generates D.C. voltage while earth tester generates A.C.voltage is it true? I know for megger it is D.C generator but what about earth tester?

4 Answers   IOCL,

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Why only plate(copper) Earth pit given for neutral earthing? why not pipe(G.I) Earth pit?

1 Answers  

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A TRANSFORMER 440/400V,DELTA/STAR CONNECTED.THE NEUTRAL CONNECTED WITH GROUND CABLE THAT IS DIRECTLY CONNECTED TO THE PANEL,FROM PANEL IT IS CONNECTED EARTH PIT.IS IT RIGHT? IF IT IS RIGHT LEAKAGE CURRENT AFFECTED.SECONDATY IS PROTECTED WITH EARTH LEAKAGE RELAY.

0 Answers   Jindal,

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How to know about the rating(voltage and other) of induction motor if its name plate is missing at the manufacturing site.

0 Answers   ABB,

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ROC converges if poles and zeros lie inside a. Origion b. Z=1

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