Custom Search

Speed of Electrical Motors with operating Loads

The speed of operating electrical motors with loads, are lower than the motors synchronous speed (no load)

Sponsored Links

The approximate speed (RPM) at rated loads for small and medium motors operating at 60 hz and 50 hz at rated volts can be found in the table below:

Approximate Electrical Motor Speed (RPM)
No. Poles	Speed with Rated Load		Synchronous Speed (no Load)
No. Poles	60 hz	50 hz	60 hz	50 hz
2 Pole	3450	2850	3600	3000
4 Pole	1725	1425	1800	1500
6 Pole	1140	950	1200	1000
8 Pole	850	700	900	750

Sponsored Links

Search the Engineering ToolBox

Custom Search

Related Topics

Electrical - Amps and electrical wiring, AWG - wire gauge, electrical formulas, motors and units

Related Documents

Electrical Motor Efficiency - Calculating electric motor efficiency
Power Factor for a Three-Phase Electrical Motor - Power Factor definition for a three-phase electrical motor
Synchronous Speed of Electrical Motors - The speed at which an induction motor will operate depends on the input power frequency and the number of electrical magnetic poles in the motor
Torques in Electrical Induction Motors - There are some common torques used to describe and classify electrical motors

Engineering ToolBox - SketchUp Edition - Online 3D modeling!

3D Engineering ToolBox - draw and model technical applications

Engineering ToolBox - SketchUp Edition - enabled for use with the amazing, fun and free Google SketchUp

Translate the Engineering ToolBox

About the EngineeringToolbox

Advertise in the Engineering ToolBox