- #1
mgompert
- 9
- 0
self exciting dynamo question
I was reading about dynamo's and there was one that the power it made was used to run the electromagnet that made the magnetic field that the induction coil spun in.
This got me thinking if a generator can make enough electricity to power an electromagnet that is as strong as the magnet in he generator, could some one make a generator that did not move and instead of spinning the induction coil or the electromagnet you could simply turn a series of electromagnets on and off in order to induce current into a secondary coil?
I keep thinking about these self exciting dynamo's and about 3 phase motors and thinking to myself that putting these two devices together should make electricity with no mechanical input. But that cannot be right can it?
I was reading about dynamo's and there was one that the power it made was used to run the electromagnet that made the magnetic field that the induction coil spun in.
This got me thinking if a generator can make enough electricity to power an electromagnet that is as strong as the magnet in he generator, could some one make a generator that did not move and instead of spinning the induction coil or the electromagnet you could simply turn a series of electromagnets on and off in order to induce current into a secondary coil?
I keep thinking about these self exciting dynamo's and about 3 phase motors and thinking to myself that putting these two devices together should make electricity with no mechanical input. But that cannot be right can it?
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