PRD of Transformer|Pressure Relief Device for Transformer
Why Pressure Relief Device(PRD) for Oil Filled Transformer? The winding of the transformer is housed in the transformer oil tank. The oil is used in
Electrical
Why does not Transformer Work with DC Supply?
This article describes why DC is not used in transformers. The transformer functions on the principle of Faraday’s Law of electromagnetic induction. When AC is
Why Induction Motor is called Rotating Transformer?
Induction motor as a rotating transformer: The rotor of the squirrel cage induction motor is short-circuited by end rings. When a three-phase supply is fed to
Difference between Rated,Nominal and Operating Voltage
In this post, we will discuss the difference between rated, nominal, and operating voltage. Operating at the designed operating voltage enhances the equipment’s life. There
Electrical Insulation Classes | Classification of Insulating Materials
The life of electrical insulating materials gets adversely affected by the rise in temperature. Average insulation life gets halved for every 10° C increase in temperature. Therefore, the classification
Harmonics and Harmonic Frequency in AC Circuits
Harmonics refers to the additional frequencies that are generated alongside the fundamental frequency of a waveform. These frequencies are typically unwanted and can cause distortion
Why Induction Motor is called Asynchronous Motor?
An induction motor is called an asynchronous motor because the actual speed of the motor is not equal to the synchronous speed of the motor. The synchronous
Why the Slip never Zero in an Induction Motor?
A rotating magnetic field is produced when the three-phase supply is fed to the stator. The magnetic field travels the air gap length and cuts
What is Synchronous speed? Relationship between speed and Frequency
Synchronous Speed When three phases which are 120 degree-electrical apart are fed to the stator winding of the induction motor, a rotating magnetic field is
Slip Speed in an Induction Motor
A rotating magnetic field is produced when three phase supply is fed to stator of an induction motor. The rotating magnetic field has constant magnitude