Discuss Configuring motor to run off single phase? in the Electrical Forum area at ElectriciansForums.net

Welcome to ElectriciansForums.net - The American Electrical Advice Forum
Head straight to the main forums to chat by click here:   American Electrical Advice Forum

-Matt

-
Reaction score
152
We have got a hydraulic motor/powerpack for leveling legs of a trailer. However this trailer is running off a 15KW inverter, so the motor needs to run off single phase.

The motor has come configured for 3 phase, however the motor plate does say it will run off single phase.

Would i be right in thinking it would need 2 capacitors? (start and run), and then the busbar's between W1+V1, V2+U2?
With capacitor's between U1+W2, and U2+W2?

Cheers

Configuring motor to run off single phase? IMG_3408.JPG - EletriciansForums.net
Configuring motor to run off single phase? IMG_3406.JPG - EletriciansForums.net
 
Easiest option is to run it through a VFD. It will not run from single phase, the 230V is for running in Delta which is 230 volts per phase.

I have a smaller version of that motor for running a lathe, not a bad make.
 
agreed. the 230V rating detail is not single phase.
 
Easiest option is to run it through a VFD. It will not run from single phase, the 230V is for running in Delta which is 230 volts per phase.

I have a smaller version of that motor for running a lathe, not a bad make.

Thanks, will see if it can be exchanged for a single phase motor.
 
I have a hydraulic four post car ramp in my workshop with a 2kW 3 phase motor, and have run it faultlessly off of a 230V single phase supply for the 20 years or so that I've had it.
I configured the motor from star to delta, added a permanently connected 'run' capacitor, and a 'start' capacitor, switched by a current operated relay.
 
I have a hydraulic four post car ramp in my workshop with a 2kW 3 phase motor, and have run it faultlessly off of a 230V single phase supply for the 20 years or so that I've had it.
I configured the motor from star to delta, added a permanently connected 'run' capacitor, and a 'start' capacitor, switched by a current operated relay.
and i always used to think that a 4 post ramp needed a phase each for 3 of the posts and a neutral for the 4th post. each post having the appropriate wrap of tape around it, red,yellow,blue, black. they then go up with a 120 deg. separation, wobbles the car somewhat, finds the suspension squeaks. ???
 
To note here using an inverter to run single to 3ph and swapping the motor configurations will draw about 15+ amps off the supply, take that into consideration and size your mcb as stated in the drive instructions.
 
So the hydraulic manufacturer is going to send over a single phase 3KW motor the replace the 3PH one, however its rated current is 17.75A which isn't ideal, but its only used for set-up.

Is there going to be any issues with using a motor off an inverter? (have never done it), with the start up currents of the motor?

This is the inverter (its ----ing heavy!):

And 4 of these: (in 2 banks of 2)
 
So the hydraulic manufacturer is going to send over a single phase 3KW motor the replace the 3PH one, however its rated current is 17.75A which isn't ideal, but its only used for set-up.

Is there going to be any issues with using a motor off an inverter? (have never done it), with the start up currents of the motor?

This is the inverter (its ----ing heavy!):

And 4 of these: (in 2 banks of 2)

I am puzzled by this.

You're using £20,000 worth of battery banks and inverters, but can't spring the few hundred quid for a 1-3 VSD to smoothly run the original motor?

Priorities much?
 

Reply to Configuring motor to run off single phase? in the Electrical Forum area at ElectriciansForums.net

OFFICIAL SPONSORS

Electrical Goods - Electrical Tools - Brand Names Electrician Courses Green Electrical Goods PCB Way Electrical Goods - Electrical Tools - Brand Names Pushfit Wire Connectors Electric Underfloor Heating Electrician Courses
These Official Forum Sponsors May Provide Discounts to Regular Forum Members - If you would like to sponsor us then CLICK HERE and post a thread with who you are, and we'll send you some stats etc

Electrical Forum

Welcome to the Electrical Forum at ElectriciansForums.net. The friendliest electrical forum online. General electrical questions and answers can be found in the electrical forum.
This website was designed, optimised and is hosted by Untold Media. Operating under the name Untold Media since 2001.
Back
Top
AdBlock Detected

We get it, advertisements are annoying!

Sure, ad-blocking software does a great job at blocking ads, but it also blocks useful features of our website. For the best site experience please disable your AdBlocker.

I've Disabled AdBlock