Electrical Engineering - Three-Phase Systems in Power Applications - Discussion

Discussion Forum : Three-Phase Systems in Power Applications - General Questions (Q.No. 2)
2.
In a three-phase system, when the loads are perfectly balanced, the neutral current is
zero
one-third of maximum
two-thirds of maximum
at maximum
Answer: Option
Explanation:
No answer description is available. Let's discuss.
Discussion:
29 comments Page 1 of 3.

Tamil said:   1 decade ago
Please explain this ans.

Jyoti said:   1 decade ago
At balanced state sum of currents of all phase ie- Ia+Ib+Ic=0 these currents are flowing through neutral so that its value is zero.

Vinoth said:   1 decade ago
Thanks jothi.

Hussain said:   1 decade ago
Good job jyoti.

Tushar said:   1 decade ago
In balance condition, the total current equal to zero.

Lakshmiee02 said:   1 decade ago
At balance cond. for 3pha sys Ia+Ib+Ic=0,which is the total current following throw the neutral point of 3pha sys.i.e. zero

Sohail qaisar said:   1 decade ago
Thanks lakshmiee.

Ravi said:   1 decade ago
KCL, in a node sum of all currents is zero. So if we extract another line there is no chance of load drop. So no current flow.

Pavan.A said:   1 decade ago
Yes, we apply KCL I(total) = I1 + I2 and I1, I2 are the load current and I (total) is the neutral.

SILAMBU said:   1 decade ago
Sum of entering current = sum of leaving current.

I=I1+I2+I3.


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