Normally at it s top at operating speed.
Electric motor torque speed curve.
The plots below show a number of different torque speed curves due to differences in the motor designs.
The torque is the twisting force that makes the motor running and the torque is active from 0 to 100 operating speed.
Motor torque speed curve is a very good approximation.
The starting torque is indicated on the torque speed curve shown above.
The universal motor torque speed characteristic follows 1 x 2 relationship.
Common features of interest are noted and discussed below.
The power is just peaking at around 6000rpm.
The x axis is motor speed from 0 to 120 hertz.
Pull up torque put this term is used for the lowest point on the torque speed curve for an electric motor which is accelerating a load up to full speed.
By overlaying the torque speed curve of a pump and a motor one can verify that the motor is producing enough accelerating torque to drive the pump to full speed as shown below.
The y axis is the percent of hp and torque.
The motoring region of the induction machine torque speed curve is the region of greatest interest.
The induction motor torque speed curve is typical of this type of motor having a low starting torque and a peak torque just below.
The motor region of the torque speed curve.
In this case the relatively large starting torque is achieved with realistic current values.
Zero at 0 speed and.
In this diagram t represents the nominal full load torque of the motor.
The power produced by the motor depends on the speed of the motor and is.
Torque speed curve the torque developed by a conventional 3 phase motor depends on its speed but the relation between the two cannot be represented by a simple equation.
The full torque from zero speed is a major advantage for electric vehicles.
One is a plot of empirical data and the other was plotted mechanically using a device developed at mit.
Figure 1 provides a graphical illustration of these changes.
It is easier to show the relationship in the form of a curve fig.
The linear model of a d c.
At 60 hertz base motor speed both hp and torque are at 100 percent.
Overlaying torque speed curves to match motors to pumps.
Like pumps motors produce a torque speed curve of their own.
Torque speed plots in the motoring region.
In this overlay the shaded area reflects the.
The torque speed curves shown below are actual curves for the green maxon motor pictured at right used by students in 2 007.
When the speed of an ac motor is controlled by a vfd hp or torque will change depending on the change in frequency.
