- #1
Steven555
I recently ran into a rabbit hole about self-induction. In high school, I was told the coil would generate induced current opposing the AC source current because the change of magnetic flux in the coil. So I get the impression that when there is changing magnetic flux, the induced current occurs. But the induced current will also generate magnetic filed that interact with original magnetic filed which means the overall magnetic filed changed again and another induced current will occur. It almost seems like it will always happen and never stops. I know there is something wrong but I could not figure out why. In self
There is another example: The single coil rotating in the fixed two poles magnetic filed. The current will be generated because the change of the magnetic flux. When there induced current generated (it almost like a single coil power by the AC source) through the coil, it generates another "new" magnetic field which interact with fixed magnetic field. This "new" changing magnetic field would cause another inductive current. It's like changing flux 1 - inductive current 1 - change flux 2 - inductive current 2 ... and never ends.
And also for generator stator winding, the inductive current will be generated in stator winding because of the rotating magnetic filed. If this induced current will have self-induction opposing the change of itself? If the current and voltage output from the common 3 phase generator are in phase? If there is any inductance causing the shifted current phase angle because of the self-induction?
When does self-induction happen? and when does it stop?
(Please bear with my language because English is not my first language. Let me know if I can clarify anything.)
There is another example: The single coil rotating in the fixed two poles magnetic filed. The current will be generated because the change of the magnetic flux. When there induced current generated (it almost like a single coil power by the AC source) through the coil, it generates another "new" magnetic field which interact with fixed magnetic field. This "new" changing magnetic field would cause another inductive current. It's like changing flux 1 - inductive current 1 - change flux 2 - inductive current 2 ... and never ends.
And also for generator stator winding, the inductive current will be generated in stator winding because of the rotating magnetic filed. If this induced current will have self-induction opposing the change of itself? If the current and voltage output from the common 3 phase generator are in phase? If there is any inductance causing the shifted current phase angle because of the self-induction?
When does self-induction happen? and when does it stop?
(Please bear with my language because English is not my first language. Let me know if I can clarify anything.)