A series motor is efficiently suitable for ___

Electrical Engineering MCQ Electrical Machines MCQ
1

A series motor is efficiently suitable for

A. high starting torque operation.
B. low starting torque operation.
C. constant speed operation.
D. none of these.

Show Answer

Answer: A

Share your understanding of this question with the correct explanation.

2

The answer is A. high starting torque operation.

A series motor is a type of DC motor in which the field winding is connected in series with the armature. This means that the same current flows through both the field winding and the armature.

The torque produced by a series motor is proportional to the square of the current. This means that a series motor can produce a very high starting torque.

Series motors are often used in applications where high starting torque is required, such as hoists, cranes, and electric trains.

Here are some additional details about series motors:

  • They have high starting torque.
  • They have a wide speed range.
  • They are not self-starting.
  • They can be noisy.
  • They can be dangerous if not properly controlled.

Here are some of the applications of series motors:

  • Electric trains
  • Hoists
  • Cranes
  • Electric vehicles
  • Motorcycles
  • Snowmobiles
  • Model airplanes

Series motors are not suitable for applications where low starting torque is required, such as fans and pumps. They are also not suitable for applications where constant speed is required, such as sewing machines and electric drills.