In electric locomotive which of the following motor are used ?
A. DC series motor.
B. Separately compound motor.
C. Synchronous motor.
D. Shunt motor.
Show Answer
Answer: A
Share your understanding of this question with the correct explanation.
In electric locomotives, DC series motors are commonly used.
Electric locomotives require motors that can provide high starting torque and can handle heavy loads. DC series motors are well-suited for these requirements.
DC series motors have a field winding connected in series with the armature winding. This series configuration allows the motor to generate high starting torque, making it ideal for locomotive applications. The torque output of a DC series motor is directly proportional to the square of the armature current, allowing it to deliver significant torque even at low speeds.
Furthermore, DC series motors can handle heavy loads and provide good speed control. The speed of a series motor decreases as the load increases, which is desirable for locomotives as it helps in maintaining traction and control.
Therefore, the correct answer is A: DC series motor. In electric locomotives, DC series motors are commonly used due to their high starting torque, ability to handle heavy loads, and good speed control characteristics.