Answer / sharan

if we used earthing as a neutral earthing cable will connected with all equipements if any where cut the earthing cable we will get the return supply we will get a electric shock so we can't use the earthing as aneutral.

how we can adjust for three phase motor cold stall time ,hot stall time and thermal register set up?

0 Answers   OPS,

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3ph motor running with unequal kw and different pf what are the reasons

0 Answers   UltraTech,

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how many frequent start/stop operation possible in case of HT MOTORS.

5 Answers   DVC, Steel Plant,

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What is voltage ratio of a transformer?

0 Answers  

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What are types of central ac plants?

1 Answers   HSL,

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AT THE TIME OF INSTALLING THE POWER PLANT POWER IS TAKEN FROM NEARBY GRID AND GIVING THE SUPPLY TO THE GENERATOR WHICH ACTS AS MOTOR. WHAT IS THE NEED OF RUNNING THE GENERATOR AS MOTOR?

6 Answers  

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I want to apply for ONGC recruitment 2012 .I am BE Electrical but it is mentioned that to apply for this post you have to have Electrical supervisor certificate .so please tell me from where can i get such certificate ???

1 Answers  

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1))why we run three phase or three different circuit from a single conduit 2)) why not two circuit of different phase run in same conduit?? and why we run same three cicuit of same phae run in single conduit??

0 Answers   ACC,

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What is Earth Fault and Over current Fault.

1 Answers  

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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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Approach of a cooling tower is the difference between temperatures of what factors?

0 Answers   Blue Star,

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What is Class and accuracy in CTs? Types of Classes and important of Classes?

2 Answers  

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