Electrical Revolution

DC Shunt Motor & DC Series Motor DC Shunt Motor In the DC Shunt Motor, the armature winding and field winding are connected in parallel ...

  Torque It is defined as the force that gives rise to rotational motion. It is equal to force times radius through which it acts.      ...

  This test is performed in order to find out Constant losses Efficiency at any load The Swinburne test is no load test in order to find out...

DC Shunt Motor As there is drop in speed very small from no load to full load, it is also called as constant speed motor.  A shunt motor i...

The Comparison between BLDC Motor and Conventional DC Motor is summarized as below. Features Conventional DC Motor ...

It is direct test useful to find efficiency of small DC Motor. Theory The output power of the DC Motor is measured by applying b...

Introduction The speed of DC motor is related to following equation N a E b / F N = K ( V – I a R a ) / F

The importance characteristic of DC Motor is as follows Torque – Armature current ( T – I a ) It represents relation between tor...

The speed of the DC Motor is related to following equations          N α E b / Ф          N = K ( V – I a R a ) / Ф Therefore...

The term torque means ‘Turning movement of the force about an axis.’         T = F × r Newton – meter         Where T = Torque   ...

As soon as the armature starts rotating, dynamically induced emf is produced in the armature conductors.  The direction of indu...

Electrical Motor An Electric motor is a machine which converts electrical input energy into mechanical output energy.    When a cur...

Necessity of Starter The motor  armature  current is given by  I a  = ( V – E b  ) / R a  Where V = Supply  voltage            E b...