3 phase motor wiring advice

[calto]

I have a Brooks 3 phase motor running a barley bruiser and I can't work out the wiring. Anyone on here have any advice? I've attached pictures of the motor plate and and of the wires in the junction box that led to the switch.

 

[ridger]

What is the diagram on other side of cap?

 

[Fergieman]

where are the 2 cables going from the 1st box? Is there not a terminal box on top/side of motor? 1st box just looks like a junction box.

 

[Lincsman]

I guess the yellow wires go to a remote stop/ level switch?

 

[Servac]

Where do all the wires go? Do the six wires on the right go into the motor? If so then they may be for a star delta starter.

 

[Exfarmer]

That is star delta, says it on the voltage with the triangle.
if you dont know I would strongly recommend you get sparky who does

 

[Lincsman]

Where is the starter in all this? that box of wires makes little sense, did it have another outlet for wires?

 

[milkloss]

Job to say as we haven’t got the whole story in the pictures. I’d guess the three whites are the windings, the two yellow for a limit switch, possibly black neutral and the other reds for switching a single phase accessory. Don’t do anything with based on my ramblings for lords sake!

that junction box looks a bit odd, where did the wires go/attach to? Or is it an old one you’re trying to bodge back together?

 

[calto]

What is the diagram on other side of cap?

There isn't a diagram on the other side unfortunately.

 

[calto]

 

[calto]

 

[calto]

 

[calto]

The 2 yellow wires go to a part in the hopper, I think something to agitate the barley and keep it flowing. When the machine was moved the wires were cut at the junction box, they led to a normal handle switch.

 

[Finn farmer]

Now then. With electricity, if you don't know what you're doing then don't do it. If you've no education and knowledge on these things they can get you or someone close to you killed. I myself have an degree on electrics and also do know when to put down my gloves and call a real professional or atleast find the wiring diagram.

 

[Exfarmer]

The 2 yellow wires go to a part in the hopper, I think something to agitate the barley and keep it flowing. When the machine was moved the wires were cut at the junction box, they led to a normal handle switch.

the hopper wires are leading to a pressure switch to cut the motor when it has run out of grain. This feeds back to the starter on the wall where the feed comes from
all wires lead back to this starter and must be wired by someone who knows what they are doing.

 

[Fergieman]

I would get it rewired by (as said above) someone who knows what they are doing. The earth wire looks like an after thought and isn't inside the conduit. Glands are all shot and looks held together with insulating tape.

 

[Shughie McFee]

psssst......hide the wibbly wobbly wooden blocks from prying tff eyes too.

 

[milkloss]

The ’handle switch’ was a star-delta starter. Pull it one way to get low torque/low current draw from the windings (it is wired differently than normal for this) so that you don’t blow all the fuses the in County and then flip the lever the other way for normal running when it’s all up to full chat.

i don’t think you’re going to manage this on your own to be honest. I would have a bash, I’m a bit kamikaze though, but it’s a bit much giving you the advice on how to get it running on here.

 

[milkloss]

This kind of thing, either manual switch over or automatic which is a whole different ballgame.

https://www.researchgate.net/profile/Mohammed_Therib/publication/321006424/figure/download/fig2/AS:561973173514240@1510996253143/Star-Delta-Starter.png?_sg=XBwNJrweaxLjqCdzewn9Aa4MxfVqTR8fhF-3YLUV6bhYnm-u1Ys7YQ9F25uv76E8UqVTj9aB2qQ

 

[Lincsman]

You need a new star delta starter, (they do it electronically now), and fix it to a wall not the machine, as said the yellow wires are to stop it when it runs out of grain. I have have wired such things but it HAS to be right to avoid serious/terminal damage to the starter and motor.
An Electrician would have it all done in an hour.