The six wire ends in some old china electric motor junction boxes are not marked, so it is necessary to identify them first before wiring.

First, find the two ends of each phase winding

Take a 220V 25 to 60W lamp and connect it in series to a 220V power cord. Connect one of the wire ends of the electric lamp to any of the wire ends of the motor winding, and then mark this wire end as "1". Connect the other wire end of the power supply to the remaining five wire ends of the motor in sequence. When the lamp lights up upon touching a certain motor wire end, it indicates that this wire end is in the same winding as "1", and it should be marked with "4". Continue to identify one phase winding in the same way and assume the two wire ends to be marked with "2" and "5". The remaining two thread ends are assumed to be "3" and "6".

2. Locate the head and tail of each phase winding

It can be assumed first that the number above is correct. Connect "4" and "2", power on "1" and "5", and connect "3" and "6" to the light bulb. If the filament of the electric lamp turns red after being powered on, it indicates that the numbers "2" and "5" are correct. If the filament does not turn red, just swap the numbers "2" and "5". Connect "5", "3", "2", "6" electricity, "1", "4" light bulb, bulb is red, "3", "6" number correct; If the bulb doesn't turn red, just swap the numbers "3" and "6". Note: First, use a wire clamp to hold the wire end, and then connect the power supply to avoid electric shock.

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