Electrical Articles

Fuel is defined as any combustible material, obtained in bulk, containing carbon as a major constituent and when burnt in presence of oxidant evolves heat which can be economically used…

3 phase inductions motor consists of two main parts Stator Rotor The stator is stationary frame and rotor is rotating armature. The stator is made up of made up a…

Causes of failure of voltage build-up or armature heating: No residual magnetism Without any residual magnetism, voltage build-up cannot start. Due to again in transportation, the machine may lose residual…

Rotor resistance can be changed in case of wound rotor induction motor with help of external resistances connected and to brushes through slip rings provided a supply voltage and load…

When single-phase AC supply is given to stator winding. It produces alternating flux.i.e. which alternates along one space axis only. It is not synchronously revolving (or rotating) flux, as in…

Back of emf in controlling armature current [ back emf as a current register] voltage eqn for dc motor is Ia(V-Eb)/(Rb) Back EMF is the system in the coil of…