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How do you calculate the maximum torque of a DC motor?
- Tg = armature or gross torque (N-m) = Force × radius.
- r = radius of the armature in m.
- N = speed of the armature in rpm = N/60 rps.
On which factors torque of a DC motor depends?
Thus, from the above equation (5) it is clear that the torque produced in the armature is directly proportional to the flux per pole and the armature current. Moreover, the direction of electromagnetic torque developed in the armature depends upon the current in armature conductors.
What is shaft torque in DC motor?
Therefore, shaft torque (Tsh) is somewhat less than the torque developed in the armature. Thus, in the case of DC motors, the actual torque available at the shaft for doing useful mechanical work is known as Shaft Torque. It is called so because it is available on the shaft of the motor.
What is the relation between torque and speed in a DC motor?
The inverse relationship between speed and torque means that an increase in the load (torque) on the motor will cause a decrease in speed. This can be demonstrated by the DC motor torque equation:
What are the characteristics of a DC motor?
Characteristics of DC Motor: Characteristics of DC Motor are of the rotating armature type. The armature winding is a closed winding through the commutator. The armature is supplied through the brushes which are placed along the neutral axis on the commutator. The field system is stationary.
Which type of motor has motor torque?
One feature of stepper motors that differentiates them from other motor types – particularly servo motors – is that they exhibit holding torque. This means that when the windings are energized but the rotor is stationary, the motor can hold the load in place.
Which is DC motor constant speed motor?
The motor M2 is a constant speed motor and supplied from the DC supply. The motor M1 starts rotating when the output voltage of generator G is fed to the motor. The speed of a motor can be controlled by controlling the output voltage of generator G.