Electric Motor Torque Vs Rpm

In electric motors the more current you put in the more force torque you can make.

Electric motor torque vs rpm.

Torque is simply a force acting on something from a distance i e. Figure 1 provides a graphical illustration of these changes. Introduction of a vfd when the speed of an ac motor is controlled by a vfd hp or torque will change depending on the change in frequency. Power is calculated by the equation hp torque x rpm 5252 understanding the relationship between the two factors also requires knowing a little about an engine s parts.

The torque output of a motor at its most basic form is the amount of rotating force the motor develops. Typical no load or synchronous speeds for an ac fractional horsepower motor are 1800 or 3600 rpm and 1000 5000 rpm for dc fractional hp motors. That is why the shaft and frame of a 900 rpm motor are usually larger than those of an 1 800 rpm motor of the same hp. The torque delivered from an electrical motor producing 0 75 kw 750 w at speed 2000 rpm can be calculated as.

Torque nm speed rpm electric motor speed vs. If an application calls for a slower speed and or higher torque then a gear motor should be considered. The two factors largely determine the power output of an electric motor. T rated torque nm p kw rated power kw n r rated rotational speed rpm example electrical motor and braking torque.

The engine generates power using a rotating shaft that exerts a certain amount of torque on a load at a given rpm. T 750 w 9 549 2000 rpm 3 6 nm example torque from an electrical motor. There s nothing special about 1 rpm since you re asking about torque instead of power. Power kw torque nm example torque from an electrical motor.

T fl 5252 60 hp 1725 rpm 182 7 lb ft. The torque of a 60 hp motor rotating at 1725 rpm can be calculated as. The speed of an electric motor is measured in rotations per minute or rpm.