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| Snub has more Electric Motor Questions: |
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| John Hill:
--- Quote from: Bluechip on June 25, 2010, 06:45:46 AM ---Hi Troops Assuming that's what the motor IS !! Could be :zap: :zap: --- End quote --- Unlikely Dave, Snub has already determined that nothing untoward happens when connecting to each of those three wired individually, connecting two together would be putting two in parrell. Incidently, when playing with motors or transformers it is well to recognise that inductance plays as big a part as resistance and inductance is harder to usefully measure. I use a light socket in my test rig with the socket wired in series with the device being tested, if the light glows to full brilliance I know that is a very low reactance connection or a short circuit, very useful to avoid smoke escaping suddenly. |
| John Hill:
--- Quote from: kwackers on June 25, 2010, 08:25:16 AM ---I don't know an awful lot about motors - but I'd *imagine*... If the motor works by switching in varying amounts of poles - then presumably if you apply 'live' to say the red wire and get 1720rpm, the I'd think if you leave that connected and also apply power to another (say blue) then this would 'create' more poles? So instead of switching the wires you simply connect more of them. --- End quote --- Exactly, you have explained it better than I did. --- Quote ---Of course it could also be that the wires need connecting to neutral... --- End quote --- The information from the name plate does not even hint at that. --- Quote ---However, I'd start by measuring resistance between all wires to give myself some idea of how it's wired internally first. --- End quote --- This is a motor, all coils will be quite low resistance. Besides, we already know from Snub's tests that there is a circuit from the white or brown wire to each of the other three. |
| snub:
So many smart people on this forum, that's why I love it. I would like to continue pursuing my problem, even if only to learn more about AC motors. The Motor is a Welling, model # YSK60-4E. I searched hard but couldn't find anything on this particular model. I did, however, find some info on model # YSK60-4C. I am 'assuming' they are similar, but obviously not the same. The YSK60-4C was used as a fan motor in a York air conditioning unit. I managed to score this wiring diagram from the Interweb: It appears as if there are some resistors inside the motor, and looking at the diagram, I would say that the theory of joining different wires together for the different speeds has a lot of merit. I'm wondering why this wouldn't appear on the motor tag. I am looking forward to all your comments! P.S. I did a screen cap of this PDF diagram to get the pic. I see that it's not very clear. If anyone wants, I can clean up the important parts. |
| John Hill:
Those things inside the motor are coils and the other little gizmo is the starting switch. We can ignore column 'A' of the switch diagram as that controls the louvre motor and we can ignore everything below the 'Off' line. So it looks like the three wires are connected to one line for each of the three speeds and they are not connected together. I suspect the problem is with the connections to the brown and white wires in your original diagram. John |
| snub:
Coils, not resistors? The only knowledge I have of coils are the automotive type, that increase voltage. I was looking at how the yellow and white wires seem to end at ¼ and ¾ of the coil. And the red wire ends at the beginning of another coil. Obviously, I should have not have dropped out of school when I was sixteen and become a truck driver. But I'm not too old old to learn. Thankyou for your help! |
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