Facebook
Google
GitHub
Linkedin
Hi All,
Doin a practice exam & im stuck at the point of drawing a phasor diagram (Dont know where I get my angles from, or exactly how to draw)
Q1) A distrubition transformer is supplying an unbalanced load at an install. The loads on the 3 phases are as follows:
My attempt so far
Pol( 140|_ 30(deg) = Rec( 121.2 j70
95|_-165(deg) = Rec( 91.8 -j24.6
68|_ 120 (deg) =Rec( -34 j58.9
Rec( 179 j104.3
Converted to Pol( = 207.17 |_ 30.22 (deg)
1b) Draw a phasor diagram of all the voltages & the neutral current. Include the phase angle of the neutral current.
This is where im stuck, how to calculate all my phase angles & draw the phasor diagram......
Help explaining the process would be much appriciated guys...thx
Doin a practice exam & im stuck at the point of drawing a phasor diagram (Dont know where I get my angles from, or exactly how to draw)
Q1) A distrubition transformer is supplying an unbalanced load at an install. The loads on the 3 phases are as follows:
My attempt so far
Pol( 140|_ 30(deg) = Rec( 121.2 j70
95|_-165(deg) = Rec( 91.8 -j24.6
68|_ 120 (deg) =Rec( -34 j58.9
Rec( 179 j104.3
Converted to Pol( = 207.17 |_ 30.22 (deg)
1b) Draw a phasor diagram of all the voltages & the neutral current. Include the phase angle of the neutral current.
This is where im stuck, how to calculate all my phase angles & draw the phasor diagram......
Help explaining the process would be much appriciated guys...thx
