Century Electric Co. Motor Information
Century Electric Co. Motor Information
(OP)
Does anyone know where I can find information on an old Century Motor? In particular I'm trying to find out a proper replacement and need to find out whether its single or double winding.
On the nameplate, there is a line that reads:
3S.2W.VAR.TORQ.
Does this give any insight into what I need.
I appreciate any help.
Thanks.
Brian
On the nameplate, there is a line that reads:
3S.2W.VAR.TORQ.
Does this give any insight into what I need.
I appreciate any help.
Thanks.
Brian





RE: Century Electric Co. Motor Information
RE: Century Electric Co. Motor Information
Century
Model: SCM-254-NA3-101N
H.P.: 3-1.3-.75
Ph: 3
RPM: 1760-1175-875
CY: 60
Volts: 208
AMPS: 8.4-5.1-3.3
Time Rating: Cont. Open
Temp Rise: 40 deg. C
Unnamed item: 3S.2W.Var.Torq
Serial No. 5AS20994
This is a 3 speed motor, as you can tell, but we're replacing with a 2-speed since its difficult to find a 3-speed replacement, and currently they're only controlling it as a 2-speed.
Again, any help would be appreciated.
RE: Century Electric Co. Motor Information
http://www.aosmithmotors.com/
Eng-Tips: Help for your job, not for your homework Read FAQ731-376
RE: Century Electric Co. Motor Information
Now is more clear. 3S.2W.VAR.TORQ means 3 speeds, 2 windings, Variable Torque.
For two speeds, You could buy a similar motor 3 phase, 60 HZ, 208 Volts and adapt the shaft and mounting.
for 3HP-1760 rpm and 0.75HP-875 rpm you can get a single winding variable torque motor.
If you need the 1.3HP-1175 rpm and any other of the two remaining, it has to be a two winding motor.
Single winding motors are possible only with poles ratio 1/2 (2/4, 4/8, 6/12, etc)
RE: Century Electric Co. Motor Information
That sheds a lot of light on this situation as well 1 vs. 2 winding motors in general. I appreciate your input on this.
This was the first time I had posted here, and I am very happy with the results.