countryguy
Hot Rolled
- Joined
- Jul 29, 2014
- Location
- Mich, USA
Hi everyone,
Has anyone placed one of these into their 3phase RPC setup?
https://phaseconverters.phase-a-matic.com/Asset/VSB.pdf
Prices are not horrible if it helps protect a very expensive (to us) machine. Thinking of the 15hp 43A unit. Or... other suggestions?
The details: 3ph AC is not my thing... ready to learn.
Rural setting. 200amp service pole to basement box. Haas VF4/ 98 20HP in the garage via distant 100amp box 75ft away. 6awg to box, new 6awg to RPC. 8 or 10 AWG whip to Haas. Xformer taps in rear on the 244-260 input. a 240 40Gal piston compressor in basement, 6awg into it's own breaker.
Dad/Son start-up. Rebuilt the haas & added American Rotary AD RPC unit. (15hp) in garage next to Haas. Wild-leg on Haas L2 input. spindle spinning/under load. 800RPm.
L1-L2 252.4
L2-L3 256.0
L1-L3 239.5 (my single phase)
American Rotary was called. 2x now. They're not concerned w/ the 16.5 / 12.5 diffs. said it's really up to the Haas tolerances. They did suggest a stabilizer or buck boost if I want to try & clean up power (or flucuations) to the Haas. 16V diff is a bit over 1% the 5% they claim to hold. They had no solution other than an add-on device.
When the unit kicks up to say 4000RPM, or the table is flying around... we'll see the Voltage dip considerably for a in-rush moment or two. 225 229 type L1-L3 readings w/ the meter on the 'lowest - hold' to display the lowest reading observed.
The Son is graduating soon, going to try job-shopping and CAD/CAM services... Going to be important to protect the equipment over time but not waste funds either.
Just wondered what ya'll thought. I did search & read for RPC and Balance and RPC setup posts. Rather technical cap-balance discussions... ??? Over Summer's here we always see lower power and need to move the Xformer taps to the lower settings. (haas offers 4 input range taps based on the power input you present to the unit) Else we get the voltage alarms.
Just some thoughts over coffee... wondered what folks thought. TIA
CG.
Has anyone placed one of these into their 3phase RPC setup?
https://phaseconverters.phase-a-matic.com/Asset/VSB.pdf
Prices are not horrible if it helps protect a very expensive (to us) machine. Thinking of the 15hp 43A unit. Or... other suggestions?
The details: 3ph AC is not my thing... ready to learn.
Rural setting. 200amp service pole to basement box. Haas VF4/ 98 20HP in the garage via distant 100amp box 75ft away. 6awg to box, new 6awg to RPC. 8 or 10 AWG whip to Haas. Xformer taps in rear on the 244-260 input. a 240 40Gal piston compressor in basement, 6awg into it's own breaker.
Dad/Son start-up. Rebuilt the haas & added American Rotary AD RPC unit. (15hp) in garage next to Haas. Wild-leg on Haas L2 input. spindle spinning/under load. 800RPm.
L1-L2 252.4
L2-L3 256.0
L1-L3 239.5 (my single phase)
American Rotary was called. 2x now. They're not concerned w/ the 16.5 / 12.5 diffs. said it's really up to the Haas tolerances. They did suggest a stabilizer or buck boost if I want to try & clean up power (or flucuations) to the Haas. 16V diff is a bit over 1% the 5% they claim to hold. They had no solution other than an add-on device.
When the unit kicks up to say 4000RPM, or the table is flying around... we'll see the Voltage dip considerably for a in-rush moment or two. 225 229 type L1-L3 readings w/ the meter on the 'lowest - hold' to display the lowest reading observed.
The Son is graduating soon, going to try job-shopping and CAD/CAM services... Going to be important to protect the equipment over time but not waste funds either.
Just wondered what ya'll thought. I did search & read for RPC and Balance and RPC setup posts. Rather technical cap-balance discussions... ??? Over Summer's here we always see lower power and need to move the Xformer taps to the lower settings. (haas offers 4 input range taps based on the power input you present to the unit) Else we get the voltage alarms.
Just some thoughts over coffee... wondered what folks thought. TIA
CG.