cdcengineer
Sharp as a piece of beach glass
Anyone want to take a crack at this example?
A 5kW, 0.8 PF lagging induction motor is connected in parallel with a 2 kVA synchronous motor which operates with a leading PF. Find the PF of the synchronous motor if the overall PF is 0.9 leading.
FYI - the solution is 10.9 degrees 0.982 PF leading
I have no idea how this was done. I tried with impedance and power triangles. I'm thinking that they're might be a trig identity which I'm not thinking of. Suggestions??
A 5kW, 0.8 PF lagging induction motor is connected in parallel with a 2 kVA synchronous motor which operates with a leading PF. Find the PF of the synchronous motor if the overall PF is 0.9 leading.
FYI - the solution is 10.9 degrees 0.982 PF leading
I have no idea how this was done. I tried with impedance and power triangles. I'm thinking that they're might be a trig identity which I'm not thinking of. Suggestions??