VFD or phase converter

All topics related to compressed air supply.
Post Reply
richcorr
Posts: 1
Joined: Sun May 17, 2015 5:17 pm

VFD or phase converter

Post by richcorr » Mon Apr 29, 2019 4:08 pm

I purchased an Atlas Copco Gx2ff Rotary Screw Compressor, 3 phase. Getting 3 phase to my shop is not an option. What is my best option, a VFD or phase converter. I am not super knowledgeable on this subject. Suggestions would greatly be appreciated.
230v 60 Hz 2,2 Kw
IMG_5952.JPG
IMG_5929.JPG

cuttinparts
Posts: 51
Joined: Tue Sep 30, 2008 3:40 pm

Re: VFD or phase converter

Post by cuttinparts » Mon Apr 29, 2019 4:21 pm

I am no electrician or expert on the topic but believe a phase converter would be your best solution. I would think a VFD would be used in an application that required a variable frequency to allow motor rpm to be modulated like in a mill so you could vary the spindle speed to the appropriate rpm. Maybe someone else has more info for you on this topic. Sounds like a sweet compressor though!

djreiswig
Elite Contributing Member
Elite Contributing Member
Posts: 527
Joined: Thu Nov 19, 2015 10:02 pm

Re: VFD or phase converter

Post by djreiswig » Mon Apr 29, 2019 5:54 pm

You can get VFD's that will convert single phase to 3 phase.
2014 Bulltear (StarLab) 4x8
C&CNC EtherCut
Mach3, SheetCam, Draftsight
Hypertherm PM65
Oxy/Acetylene Flame Torch
Pneumatic Plate Marker, Ohmic, 10 inch Rotary Chuck (in progress)

sphurley
Elite Contributing Member
Elite Contributing Member
Posts: 442
Joined: Sat Jul 04, 2015 10:43 pm

Re: VFD or phase converter

Post by sphurley » Mon Apr 29, 2019 10:36 pm

There are three kinds, Static (Phase O Matic) just a relay and a capacitor, Rotary, (start a three phase motor with a static unit and then it's output is 3phase, and Digital, (VFD falls into this also) which can be the best in the long run (larger upfront cost but may save it on Electric bill)(Phase Perfect).
Don't get cheap, you have a really nice compressor.
Steve
Platform CNC Plasma table
CandCNC Ethercut IV DTHC
Hypertherm 85/CPC/RS485
Miller 350P
Miller Dynasty 280DX

TrinityFabworks
Elite Contributing Member
Elite Contributing Member
Posts: 120
Joined: Tue Apr 17, 2018 2:36 pm

Re: VFD or phase converter

Post by TrinityFabworks » Tue Apr 30, 2019 7:58 am

I run my bridgeport off of a cheap amazon VFD, and the thing works like a charm! They also had great customer service when I was getting it all set up originally. If this is your only 3 phase equipment, I would just buy a vfd. Very simple to use, and very affordable. Mine will run a 5hp motor and it only cost like $230. It's very small, and starts with the click of a button.

Post Reply

Return to “Air Dryers, Air Filters, Air Compressors, Etc.”

Easyscriber engrave attachment for Hypertherm torch's