Series dc motor applications

The series DC motor is an industry workhorse for both high and low power, fixed and variable 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 . DC motors are divided into three classes, designated according to the method of connecting the armature and the field windings as shunt- series and compound wound. In order to make the loop of wire .

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 induct. C Compound motor :Differential compound motors are rarely used because of its poor torque characteristics. Industrial uses : PressesShears . The application of motors mainly looks at three aspects of operation.

The speed of the machine has to be increased.

Electric traction, high speed tools. DC motors are very commonly used as variable speed drives and in applications where severe torque variations occur. And for this particular reason the motor becomes extremely essential as starter motors for most industrial applications dealing in heavy mechanical load like . DC motors with field windings for magnetic flux and armature windings as conductor.

It can be series or shunt motors. As heavy currents flow through the very thick series field windings, large torques are produced in series motors. This feature makes series motors to be used as starter motors for industrial applications.

Series motors can move comparatively heavier shaft loads.

With no mechanical load on the series motor , the current is . A series motor should never be started at no load. In AC use, these are commonly found in appliances and power tools so: vacuum cleaners, power drills, portable saws. Because of this the Armature current is the field current too.

So you will find application of DC Shunt motor wherever constant speed operation is required. Examples of such applications are the starter motors in cars, elevator motors, and tractor motors in locomotives.

These motors have found application in small electrical appliances where high torque is necessary at start up. DC series motors are used mainly for industrial applications , e. DC motor , shunt, series and compoun read our easy guide explaining the difference between these motors and their uses. Series wound DC motors are best for applications that require high startup torque , without the need for speed regulation.

Image credit: National Instruments. This type of DC motor is constructed such that the field is not connected to the armature.

The motor is called a shunt motor because the field is in parallel, or shunts the armature.