I am trying to help a friend get a motor wired up and it has me stumped. The motor is 5hp single phase 240v 3420rpm TEFC with a centrifugal switch for a start capacitor. It was purchased surplus with no documentation and missing capacitor(s). Here is the tag:
Grizzly has been no help.
There are two red wires, two black wires, and one yellow wire coming out of the motor.
R1 connects to one of the centrifugal switch contacts. It is open circuit to everything when the contacts are open. R2 connects to the other side of the
centrifugal switch. Simple enough but I have not been able to make sense of the connections to the windings.
I measured the following resistances between pairs (measured with 4-wire connections, variation in the contact resistance is about 0.01 ohm):
Bk1 -- Bk2 0.206 ohm
Bk1 -- R2 0.904 ohm
Bk1 -- Y 0.006 ohm
Bk2 -- R2 0.936 ohm
Bk2 -- Y 0.197 ohm
R2 -- Y 0.930 ohm
All of the wires are > 1500 Mohm to the case.
I would appreciate any insights or advice on how to proceed.
Dave
Grizzly has been no help.
There are two red wires, two black wires, and one yellow wire coming out of the motor.
R1 connects to one of the centrifugal switch contacts. It is open circuit to everything when the contacts are open. R2 connects to the other side of the
centrifugal switch. Simple enough but I have not been able to make sense of the connections to the windings.
I measured the following resistances between pairs (measured with 4-wire connections, variation in the contact resistance is about 0.01 ohm):
Bk1 -- Bk2 0.206 ohm
Bk1 -- R2 0.904 ohm
Bk1 -- Y 0.006 ohm
Bk2 -- R2 0.936 ohm
Bk2 -- Y 0.197 ohm
R2 -- Y 0.930 ohm
All of the wires are > 1500 Mohm to the case.
I would appreciate any insights or advice on how to proceed.
Dave