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 … Read more
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 … Read more
The back EMF momentarily opposes the armature voltage when the speed of the DC motor is changed, and thus, it limits the armature current. What … Read more
The 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. In … Read more
How does the transformer work? The transformer has two coils wound around a common magnetic core. When an alternating voltage is applied to the primary … Read more
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, … Read more
In star delta starting, the phase voltage is 58 % of the line voltage when the motor is first connected in the star connection. The … Read more
In this post, we will discuss the construction, speed control, and characteristics of DC shunt motors. CONSTRUCTION OF SHUNT DC MOTOR The field winding of … Read more
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
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
Difference Between Ohmic and non-Ohmic Conductors: Ohmic Conductors: The conductors that obey the ohm’s law are called ohmic conductors. In an ohmic conductor, the current … Read more