The cooled rolled grain oriented(CRGO) core is used in the transformer. The flux produced in the primary travels through the magnetic core and gets linked to the secondary. The maximum flux density of the CRGO core is 1.9 Tesla and if the core is magnetized above the rated capacity, the core gets saturated. The saturation of the core cause heating in the core and the other parts of the transformer. The flux density in the core should not increase above the…Continue
When the DC voltage is applied to the armature of the DC motor,the motor draws enormously high current at the starting time and it decrease as the motor accelerates.Why the DC motor draws high armature current at the starting and how the current get decreased as the motor accelerates is because of the counter potential force developed across the armature winding. The counter voltage induced across the armature winding is called the back EMF.
The counter EMF…Continue
True Power Factor :
In a harmonic rich network, the over all power factor of the electrical network not only depends on the displacement power factor but it also depends on the harmonic distortion in the electrical network. The…