EXP NO.(1) NO-LOAD CHARACTERISTICS OF D.C. SHUNT GENERATOR 1)At constant speed N=1500r.p.m Eg(residual)=10V If(Amp) 1.1 0.86 0.75 0.65 0.55 0.45 0.33 0.0 1 2) At constant speed N=1400r.p.m Eg(residual)=5V If(Amp) 0.9 0.82 0.7 G.6 0.5 0.4 0 Eg(Volt) 220 200 180 160 140 120 105 10 Eg(Volt) 190 180 160 140 120 100 5

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Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.