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,
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
A star delta starter is a widely used method for reducing the inrush current when starting a three-phase induction motor. In this article, we’ll explore
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.
Why DC Series Motor Is Ideal for Driving Heavy Loads
A DC series motor is widely used for driving heavy loads due to its unique ability to produce very high starting torque. This article explains
Transformer Oil BDV Test (Breakdown Voltage Test) – Procedure, Minimum Values & Standards
💡 Key learnings: BDV Full Form: BDV stands for Breakdown Voltage, the maximum voltage transformer oil can withstand without breakdown. Importance of BDV Testing: Regular
Air Gap in Induction Motors: Effects on Efficiency, Power Factor, and Noise
The air gap in an induction motor—the small physical distance between the stator and the rotor—has a major impact on the machine’s performance. Although it
DC Injection Braking of Induction Motor
DC Injection Braking of Induction Motor is an effective method for stopping motors quickly without mechanical components. It involves applying DC to the stator windings
Torque-Slip Characteristics of an Induction Motor: Modes & Applications
The torque-slip characteristics of an induction motor are essential for understanding how the motor behaves under various load conditions. These characteristics help evaluate how slip
Cogging and Crawling in Induction Motor
The phenomenon of cogging and crawling in induction motor happens due to improper motor design or operation by feeding the harmonic-rich supply source. The adverse effects
Effect of Unbalanced Voltage on Induction Motor
The effect of unbalanced voltage on induction motor includes increased current, reduced torque, overheating, and efficiency loss. Learn the causes and fixes. How Voltage Affects