If the neutral wire go pass through the core balance current transformer? If ye

If the neutral wire go pass through the core balance current
transformer? If yes then why? and no then why?

Question Posted / aritrasaha1722

2 Answers
10463 Views
I also Faced
E-Mail Answers

Answers were Sorted based on User's Feedback

If the neutral wire go pass through the core balance current transformer? If yes then why? and no ..

The neutral is requiered to pass through the core balance
CT together with the phase for the same circuit. It
operates on the current going through the pahse being
balanced with the current returning through the neutral. If
these are balanced the protection will not operate. If a
fault occurs (a short circuit to earth in either the phase
or neutral)some current will flow through the earth to the
neutral and not go through the CBCT. This will then operate
the protection.

Is This Answer Correct ?

6 Yes

1 No

If the neutral wire go pass through the core balance current transformer? If yes then why? and no ..

Answer / rajevaibhav

If Current Flowing through the cable is balanced then
output of the CBCT through which the cable is passing is
zero. If you pass the Neutral through the CBCT and if fault
occurs then part of fault current will flow through the
Neutral which will also travel through the CBCT and CBCT
will not produce any output hence Protection will not
operate. Hence Neutral should not be passed through the CBCT

Is This Answer Correct ?

3 Yes

4 No

Post New Answer

More Electrical Engineering Interview Questions

what is exact meaning of CT core saturation or simply saturation of core.

1 Answers

why transmition and distribution and genaration of voltage in multible of 11 means 220v,440v,11kv,22kv,,,...so on

3 Answers

on which power factor synchronous motor run

2 Answers Bhel,

we can conformed the vector group of the transformer. How?