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4-Pole Single-Phase AC Motor Wiring

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sham96

Automotive
Apr 15, 2019
35
Hello Everyone!

We recently purchased a Speed-Control Single-Phase AC induction motor with the following specs:
Model : 51K40RGN-C (Oriental Motor)
Rated Power : 40W
Rated Voltage : 200V
No. Of Poles : 4
Rated Current : 0.5A
uF : 2.5

This motor consists of four wires (blue,black,yellow and white). No wiring diagram came with this motor so any help on how to wire this motor is greatly appreciated!

The resistance between the wires are as follows:
Blue-Yellow : 88.0 Ohm
Black-White : 99.0 Ohm
Black-Blue : 187.0 Ohm (Multi-meter shows this reading only when the Yellow and White wires contact each other)
White and Yellow : 187.0 Ohm (Multi-meter shows this reading only when the Blue and Black wires contact each other)

Thanks in advance!

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Well for an internet Wild Assedt, it's worth what you pay for it, Guess: (WAG)
The start winding is often (but not always) a higher resistance than the run winding.
88 Ohms, run winding.
99 Ohms start winding. Put the 2.5 uF capacitor in series with the start winding.
No guarantees.

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
@waross thank you for your kind help! I found a wiring diagram through their website that matches the motor wire colors and this was the only one I could find. Is this diagram consistent with your theory? If so, I will try to implement it!

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Yes

Bill
--------------------
"Why not the best?"
Jimmy Carter
 
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