Why Are Rotor Bars Skewed in An Induction Motor?
What is Skewing of Rotor Slots? As shown in the above picture, the rotor bars of an induction motor are not parallel with the shaft, … Read more
Machines
An electrical machine converts mechanical energy into electrical energy or vice versa. The transformer is also an electrical machine which transform the voltage without changing the frequency. We will discuss about the;
- DC Motor
- DC generator
- Induction Motor
- Transformer
- Electrical drives
- Alternator or synchronous generator
Star Delta Starter | Working Principle, Power and Control Circuit Diagram
Introduction to Star Delta starter: Star delta starters are widely used to start a three-phase induction motor. In star-delta starting, the motor is first connected … Read more
Direct Online Starter (DOL Motor Starter): Circuit Diagram and Working Principle
Direct online starter is a method of starting an induction motor. The stator of the motor receives the full supply voltage in the DOL starter. … Read more
Why DC Series Motor is Used For Driving Heavy Loads?
The field and armature winding of the DC series motor are connected in the series and carry the same current. The torque of the DC … Read more
Transformer Oil BDV Test
The BDV of transformer oil is the breakdown voltage of transformer oil. The BDV or dielectric strength of oil is the maximum voltage withstand capacity … Read more
Effects of Air Gap On the Performance of Induction Motor
The constructional overview of the induction motor The induction motor has a stator and the rotor as its major parts. The stator is a stationary … Read more
DC Injection Braking Of Induction Motor
Induction Motor Braking Methods There are many ways of applying the brake to the induction motor. The DC injection braking is a sort of dynamic … Read more
Torque Slip Characteristics Of Induction Motor
Torque slip characteristics of induction motor show detailed information about torque and slip. There are three operating zones of induction motor. We shall discuss these … Read more
Cogging and Crawling of Induction Motor
What is Cogging and Crawling? The phenomenon of cogging and crawling of the induction motor happens due to improper motor design or operation by feeding the … Read more
Effect of Unbalanced Voltage on Induction Motor
The induction motor is most vulnerable if the voltage is higher or lower than its rated voltage. The performance of the motor depends on the … Read more