Before discussing the speed control of dc shunt motor, we have to find the factors affecting the speed of a DC motor. The speed equation of a DC motor shows that, N α Eb / φ or N α (V – IaRa)/ φ But the resistance of armature winding is small. Therefore the voltage drops IaRa will be […]
Types of DC Motor Following are the different types of dc motor: Series DC Motor Shunt DC Motor Compound DC Motor Separately excited DC motors Permanent Magnet DC Motor Series DC Motor The connection for a series-type DC motor is illustrated in Figure 1. A series-wound DC motor consists of a series field winding (identified
The working principle of DC motor can be stated as follows: When a current-carrying conductor is placed in a magnetic field, it experiences a force. In the case of a DC motor, the magnetic field is produced by the field winding. And the armature winding is connected to the external supply voltage hence it plays
Hi friends, In this article, I am discussing the construction of dc motor and hoping you will find it useful. Both the DC machines i.e. DC generator and DC motor have the same construction. Therefore, either machine can be used as a motor or a generator. So the following discussion about the construction of DC