# Phasor Diagrams and Load Balancing.

Joined May 4, 2022
5
I have been given this question to complete but I have never studied Phasor Diagrams or Load balancing so I am completely stumped by this.

Any advice would be greatly appreciated.

Thank you.

#### GetDeviceInfo

Joined Jun 7, 2009
2,198
learn basic trigonometry

#### MisterBill2

Joined Jan 23, 2018
19,107
This is a situation calling for vector arithmetic. The solution is straightforward but quite tedious.
It looks like part of an electrician licensing examination.

#### ScottWang

Joined Aug 23, 2012
7,412

#### MisterBill2

Joined Jan 23, 2018
19,107
Ypo cam also do it by super-position. The neutral current will be the vector sum of the contributions by each leg current. At least I think I recall something like that. It was in an AC circuits class back in 1968.

#### MisterBill2

Joined Jan 23, 2018
19,107
It was clear in post #1 that the question was about 3-phase power. And while a knowledge of trig is required it is not sufficient to provide the answers to the question.
The benefits of load balancing are: First, it reduces neutral line current, and second, that it tends to increase system efficiency in several different ways, including more efficient transformer operation (less winding heating) and second, lower conductor losses

#### Ramussons

Joined May 3, 2013
1,417
This is a Homework Question !