Embedded Files
Per Phase Equivalent
Per Phase Equivalent
Commit this to memory
3 Equations
3 Equations
These should be all you need to calculate any angle, current or voltage in the circuit (assuming RA can be ignored).
Think: Which field pulls which?
Think: Which field pulls which?
Generator: EA pulls VT (rotor field pulls stator field)
Motor: VT pulls EA (stator field pulls rotor field)
Delta Connected Generator
Delta Connected Generator
Use P3Φ = 3VPIPcosΦ
The equation P3Φ = √3 VLILcosΦ does not apply here, as IA is the phase current which is different to the line current in delta connections!
At the end of the day it comes back to 3 phase relationships - review these before trying synchronous questions.
Page updated
Report abuse