Answer / piyush rana

But for which purpose it is used & how to install it?

Answer / vikas

core balance circuit breaker in normal case no current flow through three phases hence output zero. at abnormal condition condition trip circuit breakers .

Answer / anil

CBCT is core balance CT. In normal conditions and phase
faults conditions (3ph or ph-ph) the output of the CT is 0.
In case of earth fault only there will be current which
will operate a relay and trip CB as for other protections.

Answer / lakshmi narayanan

IT IS USED FOR EARTH FAULT ..IT WAS INSTALLED IN MAIN
INCOMER PANEL,,,COST AROUND 20K TO 25K...IT IS MY 20 YEARS
EXPERIANCE

What will happen if 60 Hz rated transformer is connected to the supply of 50 Hz say 415 V (3-phase) step up to 3.3 kV...?? ?

2 Answers   Essar,

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why are transformer rating in MVA

2 Answers   Suzlon,

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power is the product of voltage and current.so we can measure the value of power just by using ammeter and voltmeter.......then why do we use a wattmeter?

5 Answers  

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i have one ground earth for my shop but now he showing 11v how ever my machine engineer said that he require less than 3v how can we reduce it, i have put 8 bucket salty water in it

1 Answers  

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I WANT TO INSTALL LIGHTING ARRESTOR ABOVE 20 FEET HEIGHT INDUSTRIAL BUILDING. NOW IT WAS 15 FEET HEIGHT HOW MUCH DISTANCE IT WILL COVER & HOW TO CALCULAT THE DISTANCE COVER BY THE ARRESTOR

0 Answers  

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which motor will u use in refinaries?

1 Answers   IOCL,

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use of PIR in ehv breaker

0 Answers  

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Tell me in detail about c.t. And p.t. ?

0 Answers  

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what is the solution for meger test failed the MV cable?

1 Answers  

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1.difference between sts & ats? 2.what is fm200 system brefly explain?

1 Answers   Ericsson,

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what is the working principle of Brushed alternator ? without exictation how we can give dc supply to rotor ?

1 Answers  

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what can be the causes of capacitor start motor having a higher current that its actual

0 Answers  

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