Motor nameplate torque.
Motor nameplate torque.
(OP)
I just received a 3ph gear motor.
It has European roots.
On the motor's plate:
Rated at 0.25kW (so it must be 1/3hp)
125rpm @ 50Hz
158rpm @ 60Hz
nm = 10.15
So tell me about this torque. Is that what the gear box is rated for? So at 158 I'm getting more hp?
Or does the nm have to be reduced at the higher rpm?
It has European roots.
On the motor's plate:
Rated at 0.25kW (so it must be 1/3hp)
125rpm @ 50Hz
158rpm @ 60Hz
nm = 10.15
So tell me about this torque. Is that what the gear box is rated for? So at 158 I'm getting more hp?
Or does the nm have to be reduced at the higher rpm?
Keith Cress
kcress - http://www.flaminsystems.com





RE: Motor nameplate torque.
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Motor nameplate torque.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor nameplate torque.
The torque is mostly dependant on the current. Maximum torque and maximum current are about the same at 50 Hz and 60 Hz.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Motor nameplate torque.
Same torque, higher speed, more hp.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor nameplate torque.
If the voltages were the same, then you would be in constant horsepower. But if you have a constant V/f ratio, then you are in constant torque - which means more HP at 60 Hz. As Bill already said. I am wtching your video crreping out of my house. The A in ADSL is really annoying...
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Motor nameplate torque.
It would take me about 60 minutes. Then add all the packaging!
Hey wait!! I doubt I can even accept 50MB!! Most mail will only ingest 10 or 20MB.
You need to put it on some file hoster service.
And why are you sending it to San Diego? Isn't that in another country from the one I'm in?
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor nameplate torque.
Se what your nasty postmaster sent me:
'Keith Cress' den 2008-08-06 22:38
552 5.2.3 Message exceeds maximum fixed size (52428800)
I have to do it all over again at lower resolution. But will be Friday. Guess what? Going to ABB HQ in Västerås tomorrow. I even think they will buy me lunch!
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Motor nameplate torque.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor nameplate torque.
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Motor nameplate torque.
Keith Cress
kcress - http://www.flaminsystems.com
RE: Motor nameplate torque.
Free lunch and beer was the feature I really liked.
Roy
RE: Motor nameplate torque.
The one figure given for torque argues for this.
Bill
--------------------
"Why not the best?"
Jimmy Carter
RE: Motor nameplate torque.
Gunnar Englund
www.gke.org
--------------------------------------
100 % recycled posting: Electrons, ideas, finger-tips have been used over and over again...
RE: Motor nameplate torque.
No Harvest, I think based on Mitsibishi but not certain
http://www.ld-harvest.com/en/1-1.htm
Roy