Paul Cataldo
Stainless
- Joined
- Dec 9, 2004
- Location
- Atlanta, GA
I have a 20hp RPC, and currently hooking up a Miller CP302. I will post measured, no load voltages below for each leg of the RPC yo GRD, and also across LEG-LEG.
My question is this. Does it matter where I run the generated/wild leg into the CP302?
I know with motors, it doesnt matter, and if you switch any two legs, that reverses motor rotation. But how about resistive loads like this welder? Does the wild generated leg matter where its ran to inside the CP302 welder?
LEGS TO GROUND
L1 120.8v
L2 186v (generated/ghost leg)
L3 121v
LEG-LEG
L1/L3 241.5v
L1/L2 223.8v
L2/L3 217v
Voltages are right at 10% difference max between the highest and lowest legs.
RPC has not been balanced with run caps. I do have a heavy sheave and 20hp idler is 1765rpm. I hear this heavy sheave and lower rpm motors can help balance things out?
Does anyone feel I'll have any problems with these voltages having used no means to balance the legs?
My question is this. Does it matter where I run the generated/wild leg into the CP302?
I know with motors, it doesnt matter, and if you switch any two legs, that reverses motor rotation. But how about resistive loads like this welder? Does the wild generated leg matter where its ran to inside the CP302 welder?
LEGS TO GROUND
L1 120.8v
L2 186v (generated/ghost leg)
L3 121v
LEG-LEG
L1/L3 241.5v
L1/L2 223.8v
L2/L3 217v
Voltages are right at 10% difference max between the highest and lowest legs.
RPC has not been balanced with run caps. I do have a heavy sheave and 20hp idler is 1765rpm. I hear this heavy sheave and lower rpm motors can help balance things out?
Does anyone feel I'll have any problems with these voltages having used no means to balance the legs?