Due to the losses in a transformer, its output power is less than the input power. ∴ Power output =…
It is seen in the generation action, that when a conductor cuts the lines of flux, e.m.f. gets induced in…
Figure 1.35 Open Circuit Test From this test, we can determine core loss and no-load current (I0) of the transformer. Figure…
The ratio of output in watts to input in watts is called commercial efficiency of a transformer. Distribution transformers are used for…
Hysteresis loss and eddy current loss are the components of the iron losses. For the applied fl ux density Bmax to the…
The main purpose of this test is to compute the following: Equivalent impedance of the transformer referred to primary and…
The voltage equation of a d.c. motor is given by, V = Eb + Ia Ra Multiplying both sides of the above…
During no-load condition, induced voltages at the primary and secondary windings are equal to the applied voltage and secondary terminal…
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.…
The armature reaction is nothing but the effect of flux produced by armature conductors on the distribution of main flux…