implied service factor - ca 1972
implied service factor - ca 1972
(OP)
We are dealing with a 600 HP, 900 rpm, 4000 volt motor presumably made by US Motors in the late 1960s/early 70s. Enclosure ~ WPII. The name plate does not even have a space for Service factor. The rpm is listed as 900, so does not reflect slip at full load. The name plate does not look like a factory original piece, and has a supplier/rebuilder's name most prominantly displayed.
http:/ /files.eng ineering.c om/downloa d.aspx?fol der=657b1b 84-2fad-4f 95-8e20-76 415608b263 &file= motor_name _palte.JPG
Is there a service factor implied on motors this size and type of this age?
thanks
Dan T
http:/
Is there a service factor implied on motors this size and type of this age?
thanks
Dan T





RE: implied service factor - ca 1972
"Dear future generations: Please accept our apologies. We were rolling drunk on petroleum."
— Kilgore Trout (via Kurt Vonnegut)
For the best use of Eng-Tips, please click here -> FAQ731-376: Eng-Tips.com Forum Policies
RE: implied service factor - ca 1972
Tom
RE: implied service factor - ca 1972
I think the synchronous speed is normally on the nameplate not the actual.
RE: implied service factor - ca 1972