Standard available motor size in the market

[rusman]

I need to know the standard available motor size in the market, used for the refinery and petrochemical industry. If possible I need to know the power factor and the efficiency (at full load) of such motor.

Any help is highly appreciated.

Thanks!!!

 

[electricpete]

In the US, NEMA MG-1 defines a whole range of standard "sizes", which would include horsepower and speed ratings and physical dimensions.

I just bought a 100hp 3600 rpm motor (non energy-efficient).
Efficiency was 95% and power factor was 87%. But there are wide variations possible.

There are federally-mandated minimum efficiency levels for new motors. (EPACT).

 

[UKpete]

There are a number of manufacturers web-sites you can try, e.g.

http://www.usmotors.com

http://www.westernelectric.com.au

http://www.sea.siemens.com/motors/product/nema.html

http://www.wegelectric.com/

most or all of these will have comprehensive data (often brochure tables in .pdf format). You will need the harzardous/explosion-proof motor data.

 

[jbartos]

Suggestion: Visit

http://www.globalspec.com/Frames?Url=http://

http://www.globalspec.com/Areas/?SE=GT

(click on motors)
etc. since the original posting is very general regarding the motor data or specifications.