car lift inverter from single ph to 3 ph .

[SASCHLO76]

hello all . Iam looking for a inverter to make my car lift work. ive only got single phase but need 3 phase for the lift . the lift motor 2.2 kw.so iam propbley better of having on 3-4 kw.the problem is what one do i go for. ive asked diffrent companys. some dont wona no. and some say a rotery one others say a static one an some say to go fo a digital one. iam just not to sure what way of the three to go please help . not many seem to know much about the digtial one. thanks saschlo.:sad3:

 

[PC Electrics]

Can I offer an alternative suggestion? Why not just swap out the motor for a single phase one.

 

[SASCHLO76]

hello all. dose anyone know what the digt inverters are like compered to a static one ????

 

[telectrix]

as PC says. cheaper to buy a 1 phase motor.

 

[Knobhead]

A good inverter will cost you about £270 for 2.2 KW. You may be able to pick one up on E-Bay for less. With the inverter you don’t have the problems of reversing a single phase motor.

 

[OldeSparky]

dont fit an invertor...change the motor..you will have endless trouble with it.. not good for a lift

 

[Knobhead]

dont fit an invertor...change the motor..you will have endless trouble with it.. not good for a lift

On what do you base that argument?

 

[OldeSparky]

On what do you base that argument?

totaly un reliable...

i have farms with them on and they are usless,, just trying to cut corners instead of having a 3 phase supply

 

[richard feynma]

Hi ,I am new to the forum .I also had to make the decision with a car lift whether to buy an inverter or change to a single phase motor . My lift is a Bradbury 40 series 4 tonne .The motor does not need to reverse as it is gravity that takes it down .Also purely for interest the locks only come into play if the steel ropes go slack eg if the ram fails .

 

[richard feynma]

I chose to convert to a single phase motor .( I am not doing the work myself. )I have a reasonable knowledge of single phase but no practical knowledge of 3 Phase .Anyway to the point . Replaced 3 phase 1.85kW with a 2.2Kw capacitor start capacitor run single phase .Made the mistake of connecting it into an industrial socket on a short extension lead which I use for one of my welders. The fuse blew presumably with the surge required to start the motor . Re-connected it to a 32A direct connection lift worked raised about two feet but then stopped . Wouldn't lift again . Smoke coming from the power housing . On investigation the starting capacitor had blown it's top .

 

[richard feynma]

I researched extensively before choosing to go single phase .As in all grey areas peoples opinions differed .Usually they are all correct you just have to know the context they are talking about . Some say you definitely need to change some of the 3 phase elements in the control box e.g. the contactor others say with slight modification it isn't necessary .

 

[richard feynma]

My question is , would the initial fuse blowing event also have blown the starting capacitor or is there any other reason ( save a faulty capacitor ) that could have caused it ? I have a new starting capacitor and have a direct online starter ordered but once again the opinion is divided on whether the D.O.L .S is essential .Thanks for any advice in advance best regards , Ricky F

 

[richard feynma]

I should also point out because the lift is gravity down,with no motor direction reversal necessary , it is considered one of the easier 3 phase to single phase conversions .cheers.