The series motor can safely handle large currents since the motor does not operate for an extended period. In most applications the motor will operate for only a few seconds while this large current is present.Dc series motors are basically used where the requirement is high starting torque. In earlier days, it was used in cranes, lift, etc. But nowadays after the widespread use of vvvf drives became more prevalent, speed and torque control of ac induction motors became easy and economical and use of induction motors became more popular in almost all applications. applications of dc series motor pdf
A series dc motor is a motor whose filed windings consists of a relatively few turns connected in series with the armature circuit. The equivalent circuit for a series dc motor is shown in Figure 7. 1.
Applications of DC Motors. Series Motors. The series DC motors are used where high starting torque is required, and variations in speed are possible. DC shunt motor If armature and eld of d. c. shunt motor are energized together, large current is drawn at start but the torque builds upapplications of dc series motor pdf The series DC motor is an industry workhorse for both high and low power, fixedandvariable speed electric drives. Applications range from cheap toys to automotive applications. They are inexpensive to manufacture and are used in variable speed household appliances such as sewing machines and power tools.
Series DC motor In a series DC motor the field is connected in series with the armature. The field is wound with a few turns of large wire because it must carry the full armature current. A characteristic of series motors is the motor develops a large amount of starting torque. applications of dc series motor pdf