Energy Efficient Motors
Energy efficient motors are the most economical because these motors have higher efficiency than conventional motors like EFF-1 and EFF-2. Cost-effective production is the need
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
Dynamic Braking in Variable Frequency Drives(VFD)
Dynamic Braking in VFD is a technique used to safely stop high-inertia loads by dissipating excess energy through braking resistors. Variable Frequency Drives (VFDs) are
Current Transformer Secondary Grounding
Current transformer (CT) secondary grounding is essential for safety, relay accuracy, and avoiding equipment damage. This article explains why CT secondary is grounded, how CT
Harmonic Filter Selection: Passive, Active & Hybrid Filtering
Harmonic filter selection is essential because all orders of harmonics harm an electrical power system, with the 5th and 7th harmonics being especially damaging to
Transformer Magnetizing Inrush Current
When energizing a power transformer, the transformer draws a magnetizing current. The magnitude of the magnetizing current is several times higher than the rated current