my mom
only shunt dc motors have varaible speed control. compound dc motors do however NT as much, plus they are just a mixture of series and shunt dc motors.
dc shunt motors
Dc shunt motor is a constant flux and constant speed motor . So that it is used in centrifugal pumps ,machine tools ,blowers and fans etc.
because current is same in series resister
the basic difference is ,in short shunt motor the series field winding wont carry any current under no load condition whereas in long shunt motors series winding will carry no load current.....
Types of AC MotorsClassification Based On Principle Of Operation:(a) Synchronous Motors.1. Plain2. Super(b) Asynchronous Motors.1. Induction Motors:(a) Squirrel Cage(b) Slip-Ring (external resistance).2. Commutator Motors:(a) Series(b) Compensated(c) Shunt(d) Repulsion(e) Repulsion-start induction(f) Repulsion induction
it maintains a constant speed under varing load
Split Phase Induction (Resistance Start, Capacitor Start, Capacitor Start/Capacitor run) Three Phase Induction Wound Rotor Motor Synchronous Motor Hysteresis Motor Reluctance Motor Selsun Motor Consequent Pole Motor Inside-out Motor Stepper Motor Amplidyne Motor Printed Circuit Motor Brushless DC Motor (Pulsed DC) Universal Motor (AC or DC) Repulsion Motor
A DC shunt motor is a motor using DC supply with the the inductor connected parallel to the armature.
swinburne's test on dc shunt machine is to predetermine the efficiency of the dc machine , but it is not accurate it is just like estimation of efficiency of dc shunt machine when it is run as a motor and a generator............................
induction motor is AC motor also synchronic motors are AC motors but second one has not slip but first one has slip . shut motor is DC motor
It will drawn a large amount of current which can destroy the shunt