32amp single phase blue plug machine 3 phase red supply

[catheine]

Hi Please can anyone help. I have an ice cream machine that runs on a single phase 32 amp 3 pin blue plug. I need to connect it to a wall outlet that has a 5 pin hole red plug that is 3 phase. I have tried just putting the 3 wires of the ice cream machine into 3 of the 5 holes of a red 3 phase plug so I can connect to the supply in the wall but the ice cream machine keeps cutting out when it gets busy. Is it possible if so how. Thankyou Cath

 

[holmslaw]

..

 

[ericmark]

Although in theory 5 pin sockets should have a neutral connected many times I have found the neutral missing.

This needs testing before connection and as already said.

 

[bernardgreen]

Saw exactly this situation in an ice cream factory laboratory when a development system was being installed. ( development of new ice cream products ).

It was solved rapidly by using a 440 volt to 230 volt transformer fed by two phases to produce an isolated single phase supply with the necessary current capacity.

Not cheap and not mobile but effective, no recollection of how the protection of the 230 v supply was achieved.

 

[ricicle]

Don't go there, get a spark.

 

[plugwash]

Hi Please can anyone help. I have an ice cream machine that runs on a single phase 32 amp 3 pin blue plug. I need to connect it to a wall outlet that has a 5 pin hole red plug that is 3 phase. I have tried just putting the 3 wires of the ice cream machine into 3 of the 5 holes of a red 3 phase plug

Nothing wrong with that per-se as long as you connected it to ONE of the lives* a neutral and an earth, you wired it securely and the overcurrent protection is appropriate for the appliance.

What are the ratings of the machine?

Were the old and new plugs the same current rating?

but the ice cream machine keeps cutting out when it gets busy. Is it possible if so how. Thankyou Cath

What exactly do you mean by "cutting out"? does the machine just stop working? does a protective device somewhere trip?

When you say "when it gets busy" do you mean when the place as a whole gets busy or do you mean when that particular machine is busy?

If it is just cutting out without tripping anything and it's happening when the whole place is busy then my suspicion is that cables in distribution circuits and possiblly also in the final circuit feeding the socket are too thin leading to excessive volt drop. You really need to get an electrician to inspect and test the fixed wiring.

If it's happening when that machine is busy but the rest of the place is quiet then either the cables in the final circuit feeding the socket are too thin or the machine itself is faulty.

*REMEMBER IN A THREE PHASE SYSTEM THERE IS 415V BETWEEN THE LIVES SO DO NOT UNDER ANY CIRCUMSTANCES ATTEMPT TO CONNECT THEM TO EACH OTHER.