Submitted to: Mr. A.K. Dhiman Bhupesh Kumar Singh (B.TECH-III)
AN ABSTRACT
With increasing demands of per capita electrical consumption, the requirements of various power sources are also increasing at the same rate. The increase in use of electrical energy has been primarily due to vast variety of electrical machinery for the purpose of generation. This electricity could be generated by various means such as thermal, hydro, nuclear …show more content…
A synchronous generator is called “synchronous” because the waveform of the generated voltage is synchronized with the rotation of the generator. Each peak of the sinusoidal waveform corresponds to a physical position of the rotor. The frequency is exactly determined by the formula f = RPM x p / 120 where f is the frequency (Hz), RPM is the rotor speed (revolutions per minute) and p is the number of poles formed by the stator windings. A synchronous generator is essentially the same machine as a synchronous motor. The magnetic field of the rotor is supplied by direct current or permanent …show more content…
rotor as shown in the figure above. Once the rotor or the field poles are made to rotate in the presence of armature conductors housed on the stator, an alternating 3 φ voltage represented by aa’ bb’ cc’ is induced in the armature conductors thus resulting in the generation of 3φ electrical power. All modern day electrical power generating station use this technology for generation of 3φ power, and as a result the alternator or synchronous generator has become a subject of great importance and interest for power engineers of