Continue to Site

Welcome to our site!

Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

  • Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.

Complex Power Question, when to use current conjugate

Status
Not open for further replies.

stcalle

New Member
I was hoping someone could help me out with explaining when you use these two particular forumulas.

Solving for 3 phase power:
1) S = sqrt 3 * V line to line * I line to line
2) S = 3 * V line to neutral * I' line to neutral
where I' is the conjugate of I


I've seen equations #1 and #2 but I have not seen the equation
3) S = sqrt 3 * V line to line * I' line to line

Does equation #3 exist or is it incorrect?

Thank in advance.
 
I can't quite understand the concept of

I line to line

Current is what flows in a wire, or line. If a meter is being used to measure current, only one line is connected to.

Voltage is measured from line to line, so

V line to line

or

V line to neutral

makes sense.
 
Status
Not open for further replies.

Latest threads

New Articles From Microcontroller Tips

Back
Top