What is Permanent Magnet Stepper Motor? Working, Diagram & Construction
Figure 1: Permanent Magnet Stepper Motor.
What is Permanent Magnet Stepper Motor? Working, Diagram & Construction Read More »
Electrical Machine
What is Capacitor Start Induction Motor? Working Principle, Diagram & Applications
In the capacitor-start induction motor, a high value of capacitor usually electrolytic type of capacitor is connected in series with the starting winding or auxiliary winding. Fig. 1. Capacitor Start Induction Motor.
What is Capacitor Start Induction Motor? Working Principle, Diagram & Applications Read More »
What is Shaded Pole Induction Motor? Working Principle, Diagram & Applications
Shaded pole induction motor is more or less similar to single-phase induction motor. The stator poles of this motor are wound only with main winding, so as to make them electromagnets. The pole has a slot cut at one third for one end for housing high reactance but low resistance copper bars enclosing a part
What is Shaded Pole Induction Motor? Working Principle, Diagram & Applications Read More »
Open Circuit and Short Circuit Test on Transformer – Experimental Set-up & Procedure
The Open Circuit and Short Circuit Test on Transformer can be used to determine the efficiency and regulation of a transformer at any predetermined load for that we do not have to actually load the transformer. The parameters of the equivalent circuit of a transformer can be obtained by using the open circuit (O.C.) test
Open Circuit and Short Circuit Test on Transformer – Experimental Set-up & Procedure Read More »
What is Permanent Magnet DC Motor (PMDC Motor)? Construction, Diagram & Applications
Permanent magnet motors are similar to conventional DC motors except the use of permanent magnet to produce flux instead of field winding. The use of high energy permanent magnet in the motors which advances in the field for the purpose of simplicity and low initial cost has led to the formation of new class of
What is Permanent Magnet DC Motor (PMDC Motor)? Construction, Diagram & Applications Read More »
What is Switched Reluctance Motor? Working Principle, Diagram, Construction & Applications
Figure 1: Switched Reluctance Motor. Switched Reluctance Motor can be operated on DC as well on AC supply. It uses no brushes nor any permanent magnet. It is a specialized type variable reluctance stepper motor. It has less number of poles.
What is Plugging Braking? Connection Diagram & Working
Plugging is the simplest type of braking which involves re-connection of motor to supply in such a way that motor develops torque in opposite direction to the movement of rotor system, speed will decrease till zero speed is reached where mechanical brakes are applied and then it will accelerate in opposite direction. This method is
What is Plugging Braking? Connection Diagram & Working Read More »
What is a Current Transformer (CT)? Working Principle, Connection Diagram, Construction & Advantages
A current transformer (CT) is nothing but a coil wound on a toroidal core. When a large current carried by a conductor is to be measured, it is advisable to avoid the direct connection of ammeter in this high current circuit. For this purpose a current transformer is used. Fig. 1 : Connection of Current
What is 3 Phase Autotransformer? Working Principle, Connection Diagram & Applications
The three phase autotransformer is a combination of three single phase autotransformers. It has three windings, one per phase. Fig. 1 : 3 Phase Autotransformer.
What is 3 Phase Autotransformer? Working Principle, Connection Diagram & Applications Read More »