Rotating Magnetic Field in a 3-Phase Induction Motor
The stator of an induction motor consists of a number of overlapping windings offset by an electrical angle of 120°. When the primary winding or stator is
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
Application of Squirrel Cage And Slip Ring Induction Motor
Squirrel cage and slip ring induction motors are widely used in industrial and commercial applications due to their ruggedness and efficiency. While both are types
Why Induction Motor Takes High Starting Current?
Why does an induction motor take high starting current? When an electric motor starts, especially an induction motor, it draws a large amount of current.
How to Calculate Burden of CT
The burden of the current transformer is expressed in VA. The total VA burden should be considered when CT is used for measuring or protection
Back EMF in DC Motor – Definition, Formula & Significance
The back EMF momentarily opposes the armature voltage when the speed of the DC motor is changed, and thus, it limits the armature current. Definition
Transformer Over Fluxing Protection
Transformer Over Fluxing Protection protects the core from overheating caused by over-fluxing. The voltage and frequency ratio (V/f) is responsible for over-fluxing in the transformer.
Over Fluxing in Transformer: Causes, Effects, and Permissible Flux Limits
Overfluxing in transformer is a critical condition that occurs when the voltage-to-frequency ratio (V/f) exceeds its designed limit, leading to an abnormal rise in core
Why DC Series Motor should not be Started at No Load
The DC series motor attains dangerously high speed when we run it on no load. The main reason for overspeeding is that at no load,
Why is Star Delta Starter Preferred with an Induction Motor?
Why star delta starter is preferred with induction motor can be understood from the following explanation. In star delta starting, the phase voltage is 58%
DC Shunt Motor : Construction, Speed Control & Characteristics
A DC shunt motor is known for its nearly constant speed operation, making it ideal for applications like lathes, fans, and conveyors. In this post,