i’ve got a 2 hp 3 phase motor and found a 230v 3 phase outlet in a shop I have access too. Question is how do you vary the speed of 3 phase power. Was on route of vfd for 230v 1 phase when I happened on to this plug. Is it worth playing with or should I just continue on my original route? Thoughts? Opinions? Anything else?
From my readings on speed control of 3 ph motors, the only way is to adjust the frequency. VFDs come in 3 ph in 3 ph out for example. https://www.automationdirect.com/ad..._-_gs3_drive_units_(230_-z-_460_vac)/gs3-22p0 or https://www.automationdirect.com/ad...ive_units_(120_-z-_230_vac)/cfw300a07p3t2nb20 hope this helps.
Most VFDs will accept 3 phase input. If you want to vary the speed of the motor then get a VFD. If you want the motor run at a fixed speed. Simply power the motor from from the 3 phase receptacle. Sounds like a good motor. Is it a TEFC? Dan
