Warco 1322 & Inverters ?

[chris jParticipant @chrisj]

Hi guys

I have decided to get a Jaguar Cub Inverter.

The Lathe is a 3ph version, and I have a 1ph supply.

Does anyone know if the coolant pump and/or worklight has a switchable transformer ?

Thanks Chris

[chris jParticipant @chrisj]

[TerrydParticipant @terryd72465]

Not sure,

Would Warco not know, they are usually very helpful?

Terry

[michael howarth 1Participant @michaelhowarth1]

Terry ……..Is that an apprentice with you on your photo?

Mick

[chris jParticipant @chrisj]

Posted by Terryd on 27/11/2012 14:41:35:

Not sure,

Would Warco not know, they are usually very helpful?

Terry

Could be Terry, but I thought I'd ask here while I wait for them to reply.

[chris jParticipant @chrisj]

Posted by chris j on 27/11/2012 16:40:38:

Posted by Terryd on 27/11/2012 14:41:35:

Not sure,

Would Warco not know, they are usually very helpful?

Terry

Could be Terry, but I thought I'd ask here while I wait for them to reply.

Still no reply from warco ??

[chris jParticipant @chrisj]

Posted by chris j on 28/11/2012 10:57:49:

Posted by chris j on 27/11/2012 16:40:38:

Posted by Terryd on 27/11/2012 14:41:35:

Not sure,

Would Warco not know, they are usually very helpful?

Terry

Could be Terry, but I thought I'd ask here while I wait for them to reply.

Still no reply from warco ??

Well I found Warco a little unhelpful tbh.

Rather than answer questions it would seem that selling me new boxes is their preference. Ah well.

Todays question is where does the neutral wire go ? Earth is easy and L1 to 3 are marked but whoever disconnected the lathe also undid the neutral wire between the main on/off switch and the fuse box and left it hanging – Grrr.

Any advice would be appreciated.

[Brian O’ConnorParticipant @brianoconnor49474]

Chris,

Presumably your motor is wired in delta configuration to work on 230/240v, in which case it doesn't need neutral (when connected in star configuration for 440v operation then it is usual to take the neutral to the star centre point).

In your case, connect the live, neutral and earth wires between the mains fuse box, On/Off switch and the Cub, but from the Cub to the motor all you need are the three phases and earth.

I have a Cub on my VMC so may be able to help if you have any more problems/questions.

Brian

[chris jParticipant @chrisj]

Posted by Brian O'Connor on 02/12/2012 17:30:08:

Chris,

Presumably your motor is wired in delta configuration to work on 230/240v, in which case it doesn't need neutral (when connected in star configuration for 440v operation then it is usual to take the neutral to the star centre point).

In your case, connect the live, neutral and earth wires between the mains fuse box, On/Off switch and the Cub, but from the Cub to the motor all you need are the three phases and earth.

I have a Cub on my VMC so may be able to help if you have any more problems/questions.

Brian

Thanks Brian

The machine is wired 3ph. Not sure if it's star or delta.

The wiring between the fuse box and the motor is intact.

Between the rotary switch (on/off) is an Earth wire that goes to the fuse box (common earth point)

but there is a blue cable that is loose in the rotary and has been snipped off from somewhere in the fusebox as well.

[chris jParticipant @chrisj]

It has been suggested that the neutral wire is not normally connected, can someone confirm maybe. ?

Thanks Chris

[Anonymous]

Correct. For a three phase motor connected in delta there is, by definition, no neutral point. For a motor connected in star the star point is effectively the neutral. However, if the system is balanced, ie, each phase has the same impedance, voltage and hence current, the current into, or out of, the star point is zero. So no need for a physical wire. Small three phase motors are generally considered to be balanced loads.

I've just wired up my Britan lathe to the three phase supply in the workshop and there is no neutral connection, just three phases and earth. The main drive motor clearly runs in both delta and star configurations, but still no need for a neutral.

Regards,

Andrew

[chris jParticipant @chrisj]

Posted by Andrew Johnston on 03/12/2012 10:29:59:

Correct. For a three phase motor connected in delta there is, by definition, no neutral point. For a motor connected in star the star point is effectively the neutral. However, if the system is balanced, ie, each phase has the same impedance, voltage and hence current, the current into, or out of, the star point is zero. So no need for a physical wire. Small three phase motors are generally considered to be balanced loads.

I've just wired up my Britan lathe to the three phase supply in the workshop and there is no neutral connection, just three phases and earth. The main drive motor clearly runs in both delta and star configurations, but still no need for a neutral.

Regards,

Andrew

Brilliant, many thanks

[SpringbokParticipant @springbok]

Bought a 3 phase system from Warco some years ago but they did not have a clue after that, found out the manufacturer and got it working.

Bob

[chris jParticipant @chrisj]

Posted by Springbok on 03/12/2012 18:39:33:

Bought a 3 phase system from Warco some years ago but they did not have a clue after that, found out the manufacturer and got it working.

Bob

Sadly, my experience too.

I called Chester Machines for the answer. !!

[Charlie,Participant @charlie18171]

Somone should put some curtiains in er, It sounds hollow, Every time somone speaks there is an echo,

[Author]

Posts