3-phase safety design project

161

02:22:57

Im trying to understand how the grouded capacitors effect this circuit. The wire that I am supposed to be using needs to be able to carry 100 amps. So, my line current should be 100 amps I guess. Then the wire must be rated for 120V and 400Hz. I used this information to determine what my load would be. I just used magnitudes because i am getting caught up on what phase angle to use. 

published 6 years ago

LeButch

6 years ago

Where is the 3rd phase?

hurz

6 years ago

all three are present and connected as ∆

hurz

6 years ago

http://everycircuit.com/circuit/5921080135647232

LeButch

6 years ago

Ik, but it looks like he just copied this circuit but does not proberly understand it.

Tedski

6 years ago

Bodell, try putting resistor at bottom right!

bodell

6 years ago

Thanks Tedski

Tedski

6 years ago

My pleasure, bodell!!

hurz

6 years ago

@bodell, what is this for? You try to find out what a capacitor effect this circuit? So put a capacitor in parallel to an AC source 120V and see, what is all the three phase and delta ∆ circuit for? Its actually useless. Why is this a "saftey" design?

hurz

6 years ago

This is what will happen with a capacitor at mains. Your cap is a little bigger but the voltage is lower. http://everycircuit.com/circuit/6339186611978240

hurz

6 years ago

BTW, the current in series components is identical, no need to put it twice on trace!

bodell

6 years ago

So my teacher wanted us to simulate ungrounded three phase power and he said there would be 135 micro farad capacitance per phase. And it was supposed to be a design for safety because we needed to choose a cable that could carry 100 amps and not be fatal if a human were to touch it

hurz

6 years ago

funny

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