Y / YY Motor Connection: Compressor Engine Setup, Power & Speed - 6 Contacts Configuration

Hello all. I'm working on a compressor, everything is ready, only the engine has left me. This engine fell into my hands, but I do not know how to connect it for cholera. I care about more power and speed. Advise something. As you can see there are 6 contacts, I have connected it in all ways and nothing. Each time he walked as if there was not one phase.

Hello .
The nameplate explains exactly that there is no traditional star / triangular connection. It should be connected according to figure A, which is the first from the left. For certainty you can take current measurements on individual gears. At low revs the motor can walk a little louder than high. With high speed connected, be sure to do a jumper on the terminals. If you claim that the motor works like without phase, then you still need to check the continuity of winding connections as well as their resistance. It is important to mark (whether there is) 1U, 1V terminals, 1W, 2U, 2V, 2W, which side are on the terminal block.

Hello colleagues

I have a very similar engine according to the Y/YY plate.
I added protection to it in the form of a motor thermal switch for the appropriate amperage.
I bought a three-position 1-0-2 SPAMEL ŁK25R cam switch to start it, hoping that it would fit, but I can't find a clear answer anywhere how to connect this switch so that in the second gear it would supply me with a second set of terminals (U2, V2, W2) and short circuit first set of terminals (U1,V1,W1). Maybe someone will help.



I know how to connect the motor itself, it's clear to me. I also found a description of how to switch it on with contactors, but I would like to avoid it, a simple cam switch is enough for me. The only question is what and how to connect it. On the internet you can find 0/D/YY or Dahlander couplers but is it the same as 0/Y/YY? I have big doubts. I will be grateful for your help.

Wojtek

The switch you bought is not suitable for this motor. It's supposed to be Dahlander, markings 0-1-2 outside.

WojtekDzi wrote:

On the internet you can find 0/D/YY or Dahlander couplers but is it the same as 0/Y/YY? I have big doubts. I will be grateful for your help.

The Y/YY and D/YY motors differ only in the internal connections of the windings.
The switches are the same in both cases. The connections to the terminal board are also the same. It is important to correctly identify the motor pins 1U, 1V, 1W and 2U, 2V, 2W.

Thanks Krzysiek

I'll be looking for a Dahlander, and for now it'll only run in one gear.