| ELECTRONIC COMPONENTS - AC GENERATORS | ||
All generators (large and small, AC and DC) also require a source of mechanical power to turn their rotors. This source of mechanical energy is called a prime mover. Prime movers are divided into two classes for generators: high-speed and low-speed. Steam and gas turbines are high-speed prime movers; while internal-combustion engines, water, and electric motors are considered low-speed prime movers. The type of prime mover plays an important part in the design of alternators since the speed at which the rotor is turned determines certain characteristics of alternator construction and operation. |
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