- Joined
- Dec 6, 2012
- Messages
- 2,677
I've been dragging my feet on getting my new lathe powered up until I was certain that my RPC was running correctly. I've always figured that the old induction motors on my Vintage Iron was pretty tolerant. Not so sure about the additional circuitry (which I don't understand) in this Colchester (expensive parts).
Friend of the family stopped by on Saturday with his ohm meter and oscilloscope.
First he confirmed that all three legs are balanced within about 1ov of each other.
Then he connected his oscilloscope to my elderly 20hp commercially built RPC up through an isolating device he had built from transformers.
Turns out that two of the legs nearly overlap. Thus, not phasing correctly.
He also observed that everything seems to work well enough and suggested I not worry about it.
Any thoughts on the matter?
Should I hire the electrical company that built it come and replace capacitors?
Meanwhile, on his recommendation I've powered up the lathe and "none of the smoke got out".
No real chips yet. Still aligning the tailstock.
Daryl
MN
Friend of the family stopped by on Saturday with his ohm meter and oscilloscope.
First he confirmed that all three legs are balanced within about 1ov of each other.
Then he connected his oscilloscope to my elderly 20hp commercially built RPC up through an isolating device he had built from transformers.
Turns out that two of the legs nearly overlap. Thus, not phasing correctly.
He also observed that everything seems to work well enough and suggested I not worry about it.
Any thoughts on the matter?
Should I hire the electrical company that built it come and replace capacitors?
Meanwhile, on his recommendation I've powered up the lathe and "none of the smoke got out".
No real chips yet. Still aligning the tailstock.
Daryl
MN