Switch type for reversing single phase motor

[dave h 2]

You can't trust what you read on the internet

 

[Prajna]

You can't trust what you read on the internet

Ah, but guess where I just read that. Hmm?

 

[brightspark]

Nothing keeping you from hanging a 4" computer fan on the back of the motor.

that wont be much good its the starting windings that cook if repeatedly started there only usualy run for a couple of seconds before the centrifugal switch disengages them

 

[brightspark]

As soon as the motor stops, or even drops below about 75% speed, the cap is shorted through both windings, so that seems unlikely.

dont bank on that if you work on motors. stick a screwdriver across the caps the caps after its stopped for a few mins and there is a good flash. you wouldn't want your fingers in there

 

[Erie Fred]

dont bank on that if you work on motors. stick a screwdriver across the caps the caps after its stopped for a few mins and there is a good flash. you wouldn't want your fingers in there

On a.c. motors ?

 

[Guineafowl]

dont bank on that if you work on motors. stick a screwdriver across the caps the caps after its stopped for a few mins and there is a good flash. you wouldn't want your fingers in there

Something like an open winding or switch in that case?

Time for 95% discharge of a 100uF cap in a healthy motor would be in the milliseconds.