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.

Siri Srikanth said:   4 years ago
Here Ia + Ib + Ic = 0is called neutral.
(1)

Beyene said:   6 years ago
Zero is the answer. Since Ia+ Ib +Ic=In=0.

Siddu said:   8 years ago
The sum of all the phase=0 so that's why neutral=0.
(1)

Sangram das said:   8 years ago
Here, Ia + Ib + Ic = 0.

Ankur Yrigunayat said:   8 years ago
What is the neutral current?

Surya said:   9 years ago
Thanks for all your explanation of the answer.

Bipin said:   9 years ago
The current flows through neutral when the load is unbalanced. In balanced state, Ia + Ib + Ic=0.

Rstar said:   9 years ago
It is balanced load so the neutral current is zero. We want proof to let do one thing remove the neutral core and observe the circuit there no different.

Zeeshan said:   9 years ago
Hi, can you explain me for example line one 25 A & line two 65 & line three 40 how calculate what's amp neutral.

Sanjeev said:   9 years ago
Since we have shown that the neutral current is zero we can see that removing the neutral core will have no effect on the circuit, provided the system is balanced. Such connections are generally used only when the load on the three phases is part of the same piece of equipment (for example a three-phase motor), as otherwise switching loads and slight imbalances would cause large voltage fluctuations.


Post your comments here:

Your comments will be displayed after verification.