Jeff bartley
New member
- Location
- Woodstock, VA
Hi All,
New member here, my name is Jeff and I'm a carpenter/woodworker. I run a shop with mixed single and three phase electrical and would like to expand my knowledge of motor controls and trouble shooting.
I'm currently dealing with a 5 hp single phase motor that abruptly stopped running the other day. This motor drives the dust collection system. After climbing up a ladder I found a very hot motor! Like way too hot to touch. For background: this motor is a Leeson and is probably 16 years old, wired through a 30 amp dedicated circuit.
What I hope you can help with is diagnosing. I've replaced run and/or start capacitors on motors in the past but that was after obvious failure (the magic smoke and a burst cap). But the caps look fine on this motor. Do I need a specific meter to measure capacitance? And is there a simple resistance test that can be applied to the motor leads to determine if the windings are cooked?
This exercise also begs the question: why did the motor get so hot? After it shut down the impeller spun for a long time (normal, indicating the bearings were still doing their job).
That's probably too many questions for a first post!
Thanks! Jeff
New member here, my name is Jeff and I'm a carpenter/woodworker. I run a shop with mixed single and three phase electrical and would like to expand my knowledge of motor controls and trouble shooting.
I'm currently dealing with a 5 hp single phase motor that abruptly stopped running the other day. This motor drives the dust collection system. After climbing up a ladder I found a very hot motor! Like way too hot to touch. For background: this motor is a Leeson and is probably 16 years old, wired through a 30 amp dedicated circuit.
What I hope you can help with is diagnosing. I've replaced run and/or start capacitors on motors in the past but that was after obvious failure (the magic smoke and a burst cap). But the caps look fine on this motor. Do I need a specific meter to measure capacitance? And is there a simple resistance test that can be applied to the motor leads to determine if the windings are cooked?
This exercise also begs the question: why did the motor get so hot? After it shut down the impeller spun for a long time (normal, indicating the bearings were still doing their job).
That's probably too many questions for a first post!
Thanks! Jeff
