Answer / gunasekaran

if we connect at both end circulating current will flow so
Armour getting heated up if and then it will tripping for
earth fault protection.

Answer / felixraj

only signal cables should earthed at one end. HT cables can.

Answer / ajit rath

If we connect both end to earth then potentional difference
will high & more circullating current will flow .

Answer / vinod

HT cable earthing only sending end, Why because in case of
earth fault relay pick up with minimum leakage.

Answer / j.kesavan

ht cables not connect earth propely current flowing through
the armours cable get more temp, thats why not connect earth

If UG power cable both ends are to be earthed or what? If not why?

0 Answers  

11 kg trivevter meter has rating of -/5amps. And pt ratio11000/110v and is connected with 11kv ct/pt unit of cr ratio 75/5amps. And pt ratio of 11000/110v while checking accuracy of meter with HT Accuchek meter what value of PT ratio and CT ratio to be filled in Accuchek meter

0 Answers  

generator means

1 Answers  

Just a silly question but just to make my curious mind bac to normal - Why was not 67 and 67N relays built into a single relay as i have noticed that the R,Y,B CT wiring end up into the 67 relay while the common of the R,Y,B CT wiring end up into the 67N relay. Then it was better if a single relay was manufactured just like the distance relay (21). Another question i would like to ask is - how do we know where the 67 and 67 N relay has to be placed.why is it not placed at the transformer bay? In the substaion that i am working -i have noticed that it is placed between a breaker and a common double bus bar and this line bay is connected to another substation at a remote place which is furthur connected to a load. B U S______CT for 67 & 67N ______Breaker _____ remot s/s. B A R

1 Answers  

what is the difference between RMS & TRUE RMS VOLTAGE

0 Answers   IIT,

8. A DYNAMOMETER TYPE WATTMETER RESPONDS TO THE.......

1 Answers   SSC,

I HAVE A 50A MCCB AS PER DESIGN LINE WIRE CONNECT UPWORD SIDE AND LOAD IS CONNECTED TO DOWNWARD SIDE TO THE MCCB.IF NOW ANY ONE CHANGE SUPPLY & LOAD(WISEVERSA) WHAT HAPPENS ? DOES MCCB OPERATION OR WORKING FUNCTION NORMAL IF YES THAN WHY THERE ARE MARKED LINE & LOAD ON MCCB.

0 Answers   HCL, TCS,

In Indian Household, generally we receive 220V AC single phase supply. But AC has 2 phases, +ve & -ve. So in +ve half cycle current is flowing...so what happens in the -ve half cycle?? Please illustrate.

0 Answers  

SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 Answers  

why grid frequency varry time to time?

2 Answers  

what is the use of CurrentTransformer in AVR ?

2 Answers  

How could i check the earth connection of my home using a multimeter?????? If it is possible plz help me....

1 Answers