Q. Principle of operation of a generator? A. An electric generator is a machine that converts mechanical energy into electrical…
Let us consider the following two cases: Equal voltage ratios. Unequal voltage ratios. 1.39.1 Equal Voltage Ratios Assume no-load voltages EA and EB are…
1.Introduction An electric motor is a device which converts an electrical energy into a mechanical energy. The motors operating on…
The torque produced in the induction motor depends on the following factors : 1. The part of rotating magnetic field…
As the induction motor is located from no load to full load, its speed decreases hence slip increases. Due to…
During no-load condition, induced voltages at the primary and secondary windings are equal to the applied voltage and secondary terminal…
Figure 1.25(a) shows the transformer during no-load condition. The flux Φ is set up in the core. When the secondary is loaded…
For an ideal transformer, we have assumed that there are no core losses and copper losses. For practical transformers, these…
Figure 1.30 shows a transformer having resistances R1 and R2 of primary and secondary windings respectively, and leakage reactances X1 and X2 of primary and secondary windings respectively.…
There are two types of windings usually used in a transformer. The winding receiving electrical energy is known as primary…