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:
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Discussion:
29 comments Page 2 of 3.

Shankar said:   9 years ago
Yes, you are correct @Bhimesh.

Bhimesh said:   10 years ago
As a considered KCL law incoming currents are equal to outgoing currents so the system balanced condition (IR=IY=IB=0). In this condition considered the neutral current is ZERO.

Nagaraju said:   1 decade ago
In 3 phase system balanced currents is equal to ZERO.

Biman Roy said:   1 decade ago
At balance condition Ia+Ib+Ic=0. So neutral current becomes zero.

Srinivas said:   1 decade ago
Here i = i1+i2+i3.

Hence i is neutral.

Prabhu said:   1 decade ago
Memorized KCL.

INCOMING CURRENT = OUTGOING CURRENT.

i1+i2+i3 = i.

Rajiv gandhi said:   1 decade ago
As per KCL law the sum of the incoming current is equal to sum of the outgoing current in a balancing circuit three phase system.

Sandip said:   1 decade ago
The sum of current = to load current. So it is zero.

S.hari said:   1 decade ago
Because of neutral current = I1+I2+I3 becomes zero.

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

I=I1+I2+I3.


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