Electric Motor

How do I size an electric motor?

I'd like to play around with replacing a 2.5hp gas engine with an AC electric motor, but with this economy, I can't afford the trial & error approach right now. From my work with other electric motors, I don't see a need for a 1:1 conversion. Is there a formula that will help?

If you need a 2.5HP gas engine, surely you'll need an electric motor rated at 2.5HP too. For the best efficiency and lowest running cost use a motor that can run at 230V - it will use cost half as much to run as a 115V motor.

Find Electric Motor On eBay Below:

Fuel Transfer Pump Oil Kerosene Diesel Extractor Electric Motor 12V 10 GPM New
Fuel Transfer Pump Oil Kerosene Diesel Extractor Electric Motor 12V 10 GPM New
$95.13
Fuel Transfer Pump Fluid Oil Diesel Extractor Electric Motor 12V 5A Suction New
Fuel Transfer Pump Fluid Oil Diesel Extractor Electric Motor 12V 5A Suction New
$26.53
General Electric 75 HP Electric Motor
General Electric 75 HP Electric Motor
$750.00
Reliance 75 HP Electric Motor
Reliance 75 HP Electric Motor
$750.00
Unused Surplus Teco Westinghouse 60 HP 1800 RPM Electric Motor
Unused Surplus Teco Westinghouse 60 HP 1800 RPM Electric Motor
$2,200.00
Unused Surplus Teco Westinghouse 20 HP1800 RPM Electric Motor
Unused Surplus Teco Westinghouse 20 HP1800 RPM Electric Motor
$650.00
Franklin Electric 3 4 HP Motor NEWfor waynegilbarco etc pumps
Franklin Electric 3 4 HP Motor NEWfor waynegilbarco etc pumps
$299.00
Used Gaso 3088 with Electric Motor
Used Gaso 3088 with Electric Motor
$9,500.00
Portable 12V 10 GPM Electric Diesel Oil Fuel Transfer Extractor Pump Motor Tool
Portable 12V 10 GPM Electric Diesel Oil Fuel Transfer Extractor Pump Motor Tool
$52.19
12V Motor Oil Diesel Fuel Fluid Extractor Electric Siphon Transfer Change Pump
12V Motor Oil Diesel Fuel Fluid Extractor Electric Siphon Transfer Change Pump
$28.90
DC 12V 121GPM 60W Electric Diesel Oil And Fuel Transfer Extractor Pump Motor
DC 12V 121GPM 60W Electric Diesel Oil And Fuel Transfer Extractor Pump Motor
$30.45
Portable 12V 121 GPM Electric Diesel Oil and Fuel Transfer Extractor Pump Motor
Portable 12V 121 GPM Electric Diesel Oil and Fuel Transfer Extractor Pump Motor
$30.45
Small Fuel Transfer Pump Motor 121 GPM Electric Diesel Oil and Fuel Transfer
Small Fuel Transfer Pump Motor 121 GPM Electric Diesel Oil and Fuel Transfer
$30.45
Veeder Root 726980 015 Pump Electric Reset Hazardous Loc Motor Control Switch
Veeder Root 726980 015 Pump Electric Reset Hazardous Loc Motor Control Switch
$194.99
Reliance 50 HP Electric Motor 3600 RPM
Reliance 50 HP Electric Motor 3600 RPM
$450.00
Worldwide Electric Oil Well Pump Motor 40HP Model WWELUC40 12 365T 1120RPM NEW
Worldwide Electric Oil Well Pump Motor 40HP Model WWELUC40 12 365T 1120RPM NEW
$2,500.00
New Portable 12V10 GPM Electric Diesel Oil + Fuel Transfer Extractor Pump Motor
New Portable 12V10 GPM Electric Diesel Oil + Fuel Transfer Extractor Pump Motor
$53.69
Goulds 3196 1x2 10 Centrifugal Pump With 20HP Electric Motor
Goulds 3196 1x2 10 Centrifugal Pump With 20HP Electric Motor
$1,800.00
Siemens 100 HP 1800 RPM 405T Frame Electric Motor
Siemens 100 HP 1800 RPM 405T Frame Electric Motor
$1,050.00
60W Extracting Oil Diesel Fuel Transfer Pump Electric Change For Car Boat Motor
60W Extracting Oil Diesel Fuel Transfer Pump Electric Change For Car Boat Motor
$19.99
Siemens 100 HP 1800 RPM Electric Motor
Siemens 100 HP 1800 RPM Electric Motor
$800.00
Electric Motor 50HP
Electric Motor 50HP
$500.00
24V Motor Diesel Fuel Extractor Electric Transfer Scavenge Suction Pump
24V Motor Diesel Fuel Extractor Electric Transfer Scavenge Suction Pump
$37.92
12V Motor Diesel Fuel Extractor Electric Transfer Scavenge Suction Pump
12V Motor Diesel Fuel Extractor Electric Transfer Scavenge Suction Pump
$37.92
Electric Machinery 900 HP Synchronous Electric Motors
Electric Machinery 900 HP Synchronous Electric Motors
$14,500.00
Portable 12V 300GPH Electric Diesel Oil water Fuel Transfer Extractor Pump Motor
Portable 12V 300GPH Electric Diesel Oil water Fuel Transfer Extractor Pump Motor
$198.99
Cat Triplex Pump 6811 With Electric Motor Already Mounted
Cat Triplex Pump 6811 With Electric Motor Already Mounted
$20,000.00
Electric 12V 10 GPM Portable Diesel Oil and Fuel Transfer Extractor Pump Motor
Electric 12V 10 GPM Portable Diesel Oil and Fuel Transfer Extractor Pump Motor
$54.94
General Electric 125HP 1800RPM Electric Motor
General Electric 125HP 1800RPM Electric Motor
$1,100.00
US Electrical 20 HP 3530 RPM Electric Motor
US Electrical 20 HP 3530 RPM Electric Motor
$250.00
US Electrical 25 HP 3560 RPM Electric Motor
US Electrical 25 HP 3560 RPM Electric Motor
$300.00
Unused Surplus Baldor 25 HP 1765 RPM Electric Motor
Unused Surplus Baldor 25 HP 1765 RPM Electric Motor
$700.00


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