The speed regulation of a DC motor is proportional to the resistance of the armature. The lower the armature resistance the better the speed regulation. The reason for this is that armature current determines the torque produced by motor if field excitation remains constant.
Which factor determines a motors speed?
The rotating speed of an electric motor depends on two factors: its physical construction, and the frequency (Hz) of the voltage supply. Electrical engineers select the speed of a motor based on the needs of each application, similar to how the mechanical load determines the horsepower required.
What two factors determine the amount of torque produced by a shunt motor?
What two factors determine the amount of torque developed by a DC motor? The strength of the magnetic field in the armature, and the strength of the magnetic field in the poles.
What are the factors affecting the speed of a DC motor?
Factors Affecting The Speed Of A D.C. Motor
- The flux Φ
- The voltage across the armature.
- The applied voltage V.
How can you control the speed of a separately excited DC motor?
The speed of Separately Excited DC motor is controlled to a maximum of its rated speed using chopper as a converter. The speed controller used is Proportional Integral type which reduces steady state error and provides fast control. The parameters of the speed controller have been designed using control system theory.
Which DC motor has maximum self loading property?
Which DC motor has got maximum self-loading property? Explanation: A differentially compound DC motor, flux reduces so sharply at small increase in load at higher values of load.
What are the two basic types of DC motor connections?
The motor can be connected in two arrangements: cumulatively or differentially. Cumulative compound motors connect the series field to aid the shunt field, which provides higher starting torque but less speed regulation.
What are the two ways to increase the speed of a DC motor?
The speed of the motor can be increased by:
- increasing the strength of the magnetic field.
- increasing the current flowing through the coil.
What are the two factors controlling the speed of a DC motor?
Factors Affecting The Speed Of Dc Motor
- The applied voltage.
- The flux.
- The voltage across an armature.