How to find start run common wire in electric single phase motor or in electric ceiling fan?

By Kelas Malam -

We know that every person is using single phase motors in his life, we are also using single phase motor. As i am using single phase motor, it is very important to know some about the single phase motors. Finding start, run and common terminal or wires in single phase motors are very simple but most people do'not know that how can we will find at ?. It is very simple and every person how are wants to learn they can learn.
For example we want to find start, run and common wires in a electric ceiling fan. For finding we will use a good multimeter and we will set it on ohms. First of we will touch one lead (of the meter which we set on ohms) to one wire and the other lead (of the meter) to one another wire. And we will record your reading.
Lets call these wire with the name of (A) and (B), and the remaining wire lets call (C) wire.
So for example A-B have =10 ohms
Now touch the one lead (of the meter) with (A) and t he other lead (of the meter) to the (C) wire and read the A-C and Record. Lets say 6 ohms.
Now lets read (C) wire and (B) with meter and record. Lets say 13 ohms.
Now lets add all the A's which is 10+6 = 16 ohms.
Now lets add all the B's which is 10+13 = 23 ohms.
Now lets add all the C's which is 6+13 = 19 ohms.
The highest reading which we find, will be the "Start" winding.
The Next highest reading which we find with the help of ohm meter, will be the "Run" winding.
The lowest reading which we find, will be the "Common" winding.
There fore B winding is = "Start winding"
The next is C winding is = "Run winding"
The remaining wire of ceiling fan or single phase motor  A is = "Common" winding.

I hope you understood all steps, now if you have any question regarding this post then do ask me in comment section.
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