5 ms·
IIRC these designs don't naturally have torque at zero speed like three-phase induction motors do.
by ThrustVectoring 9y ago
IIRC these designs don't naturally have torque at zero speed like three-phase induction motors do.
- Animats 9y agoYes. One of Tesla's more useful inventions was figuring out an simple way to get a synchronous motor started. Pre-Tesla schemes involved auxiliary starting motors and clutches. Tesla figured out how to run a synchronous motor in induction motor mode during starting.
- Pyxl101 9y agoTo clarify, do you mean Tesla the person or Tesla the car company? I figure the answer should probably be obvious to me, but I'm not an electronics person and it's not.
- ThrustVectoring 9y agoNikola Tesla, the late 19th / early 20th century inventor. Induction motors have been around for over a century.
- epx 9y agoTwo-phase 90 degrees apart has zero-rpm torque, like a steam locomotive, the problem is that torque is variable. Three phase torque is constant.