Inertia of inductrial motors
Inertia of inductrial motors
(OP)
Can anyone point me to data on the inertia of motors in the 1kW to 100kW range?
Thanks
Stuart
Thanks
Stuart
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Inertia of inductrial motors
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RE: Inertia of inductrial motors
"Venditori de oleum-vipera non vigere excordis populi"
RE: Inertia of inductrial motors
Mike Cole, mc5w@earthlink.net
RE: Inertia of inductrial motors
WK^2 =0.02*2^(poles/2)*hp^(1.35-0.05*poles/2)
WK^2 in ft^2-pounds
HP in HP
poles is unitless
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RE: Inertia of inductrial motors
I'm mainly interested in centrifugal pumps so generally the motor is the dominant factor (mag couplings excepted) but yes I take your point on driven loads.
The equation is interesting - I'll try it out on the few that I know and see if it seems reliable enough.
Regards,
Stuart
RE: Inertia of inductrial motors
RE: Inertia of inductrial motors
Search for motor speed and horsepower at:
http://www.reliance.com/cgi-bin/mtrquery.pl#modelc...
Find a motor and look at the performance sheet, like this one I found:
http://www.reliance.com/pdf/pdf/aced/L1821A-V.pdf
wk^2 is listed in a box near the top.
Also if you can estimate equivalent steel cyclinder, it's an easier matter to estimate wk^2 from i.d., o.d., length.
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RE: Inertia of inductrial motors