There are many method in the world to generate electrical power but the most important method at commercial scale is to keep the conductor stationery and rotate the magnetic field or keeping the magnetic field stationery and rotating the conductor. The first method is used widespread in the world. Apart from this, electrical generator is also of mainly three types 1. Inductor Generator 2. DC Generator 3. Synchronous Generator But at commercial scale, synchronous generator is used & most commonly it is also known as Alternator. The alternator is used because it provides the 3-phase power which can be supplied to the long distance by the use of 3-phase power transformer which is very costly & lossey operation in case of DC power transmission. The power from alternator is supplied at fixed frequency which is not load depended whether alternator is loaded or not loaded. This freqency depends on the speed of the alternator. On the basis of speed of...