Forum sponsored by:

3 ph motor conversion to VFD, any issues?

Electric motor question for those with electrical experience.

Search for: in Thread Title in

Russell Eberhardt	13/07/2014 14:26:10
2785 forum posts 87 photos	Posted by tractionengine42 on 13/07/2014 09:46:35: Stuart's information concerning the base frequency set to 29Hz is very attractive. Something to be aware of is that, although this method maintains the same torque, because the speed is reduced by 2/3 so is the power. So your 1 hp motor becomes a 2/3 hp motor. That may or may not worry you depending on what you intend to do with the lathe. Russell.
GoCreate	13/07/2014 16:52:39
387 forum posts 119 photos	Hi Everyone, I have decided to change the motor on the mill to the one given to me by a friend complete with a VFD. Then their shouldn't be any power issues. I have a Drummond model B lathe that I would like to get set up (some day). Now that I know I can run the old mill motor via a VFD with a base frequency set at 29Hz without modification, I will keep it for use on this lathe. Even running at reduces revs and possible lower power the old mill motor will be more than an acceptable match for the Drummond lathe. I think this has turned out very well for my purpose. Thanks again everyone that posted. Nigel

<< First < Prev 1 2

All Topics | Latest Posts

Please login to post a reply.

Magazine Locator

Want the latest issue of Model Engineer or Model Engineers' Workshop? Use our magazine locator links to find your nearest stockist!

Find Model Engineer & Model Engineers' Workshop

You can unsubscribe at anytime. View our privacy policy at www.mortons.co.uk/privacy

Latest Forum Posts

*Oct 2023: FORUM MIGRATION TIMELINE*
05/10/2023 07:57:11
Making ER11 collet chuck
05/10/2023 07:56:24
What did you do today? 2023
05/10/2023 07:25:01
Orrery
05/10/2023 06:00:41
Wera hand-tools
05/10/2023 05:47:07
New member
05/10/2023 04:40:11
Problems with external pot on at1 vfd
05/10/2023 00:06:32
Drain plug
04/10/2023 23:36:17
digi phase converter for 10 machines.....
04/10/2023 23:13:48
Winter Storage Of Locomotives
04/10/2023 21:02:11
More Latest Posts...
View All Topics

Support Our Partners

Shopping Partners

Subscription Offer

Latest "For Sale" Ads

Reeves** - Rebuilt Royal Scot by Martin Evans
by John Broughton
£300.00
BRITANNIA 5" GAUGE James Perrier
by Jon Seabright 1
£2,500.00
Drill Grinder - for restoration
by Nigel Graham 2
£0.00
WARCO WM18 MILLING MACHINE
by Alex Chudley
£1,200.00
MYFORD SUPER 7 LATHE
by Alex Chudley
£2,000.00
More "For Sale" Ads...

Latest "Wanted" Ads

D1-3 backplate
by Michael Horley
Price Not Specified
fixed steady for a Colchester bantam mark1 800
by George Jervis
Price Not Specified
lbsc pansy
by JACK SIDEBOTHAM
Price Not Specified
Pratt Burnerd multifit chuck key.
by Tim Riome
Price Not Specified
BANDSAW BLADE WELDER
by HUGH
Price Not Specified
More "Wanted" Ads...

Get In Touch!

Do you want to contact the Model Engineer and Model Engineers' Workshop team?

You can contact us by phone, mail or email about the magazines including becoming a contributor, submitting reader's letters or making queries about articles. You can also get in touch about this website, advertising or other general issues.

Click THIS LINK for full contact details.

For subscription issues please see THIS LINK.

Digital Back Issues