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

in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

0 Answers  

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why power is generatd at 50 hz only..? can we do this on another freq...?

7 Answers  

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what is the function of a circuit breaker ?how does the circuit breaker function during normal operation of an electrical system

2 Answers  

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what is appearent power?

3 Answers  

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What are the main parts of VCB?

12 Answers  

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what do you mean by star point.its importance in ct & pt

2 Answers  

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at high temperature conductivity increases for conductor what will happen for long transmission when temperature is high?

1 Answers  

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what are the uses and applications of rectifiers?

3 Answers  

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if we give 60 hz single phase supply to the transformer used in europe , than what will happen

0 Answers   Core Logic,

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Why sip ring used in ac motor also why its not used in dc motor?

2 Answers   RRB,

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If in a 3 phase supply if the load current is 200A what value of current the each phase R,Y & B will carry?

5 Answers  

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what is the difference between CT and CVT in EHV Sub Stations

4 Answers   Hofincons, Lanco, TATA,

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