Forum sponsored by:

Dual voltage 3 phase wiring

Search for: in Thread Title in

Richard Cox	01/09/2020 21:22:20
60 forum posts 19 photos	evening all quick question I have a three phase compressor that has been running off a 230v three phase inverter the motor was configured in delta, I’m lending it out to someone who has three phase on site, do I just swap the terminals to star configuration, i guess what I’m trying to ask is dual voltage motor if 415v then motor should be configured in star if 230v then should be configured in delta regards Rich
Emgee	01/09/2020 21:32:32
2610 forum posts 312 photos	Configure to High voltage by swinging the links over, make sure he has a suitable starter but you don't mention HP. Emgee
Richard Cox	01/09/2020 22:16:23
60 forum posts 19 photos	Hi emgee it’s a 5.5hp no starter, so the u2 v2 w2 should all linked with the busbars/straps And the u1 v1 w1 should have the phases connected Rich
Emgee	01/09/2020 23:56:13
2610 forum posts 312 photos	Hi Richard Best to use a starter with any motor, especially that size if running at 3 phase 415v, or better still leave it delta connected and send your inverter which hopefully has some fault and overload protection on the output. Emgee
Steviegtr	02/09/2020 07:40:45
2668 forum posts 352 photos	Posted by Richard Cox on 01/09/2020 22:16:23: Hi emgee it’s a 5.5hp no starter, so the u2 v2 w2 should all linked with the busbars/straps And the u1 v1 w1 should have the phases connected Rich Yes. But do not just rely on an isolator for switching. They are not meant for that. Steve.
Richard Cox	02/09/2020 08:40:05
60 forum posts 19 photos	Hi Steve it will utilise the pressure switch on the compressor for stopping and starting Rich
Steviegtr	02/09/2020 16:48:36
2668 forum posts 352 photos	Posted by Richard Cox on 02/09/2020 08:40:05: Hi Steve it will utilise the pressure switch on the compressor for stopping and starting Rich Steve.

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