June 10th, 2019, 07:53 AM  #1 
Member Joined: Aug 2017 From: India Posts: 54 Thanks: 2  3 vectors and the resultant vector
I have 3 current vectors of magnitude i/2 120 degrees apart nothing but a 3 phase signal. I want to calculate the resultant vector this is how I approached, I don't know which software to use to draw them, I have used drawio for drawing. My question is the resultant vector is a Null vector. Is my result correct? Please advise. Last edited by skipjack; June 11th, 2019 at 06:37 AM. 
June 10th, 2019, 09:02 AM  #2 
Senior Member Joined: Sep 2015 From: USA Posts: 2,549 Thanks: 1399 
Yes. 3 vectors of equal magnitude uniformly spaced 120 degrees apart sum to 0. 

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resultant, vector, vectors 
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