Professional classification of synchronous generators, which are the cornerstone of power supply in manufacturing industries. These generators operate in synchronization with rotating magnetic fields, providing stable power at commercial frequencies (50Hz/60Hz). Used for factory main power, emergency power, and cogeneration systems, they include diesel engine-driven, gas turbine-driven, and water turbine-driven types. Various specifications are available including three-phase AC generators, single-phase generators, brushless excitation systems, and models with AVR (Automatic Voltage Regulators) to meet manufacturing facility power demands. Clearly distinguished from induction generators and DC generators, they feature high-precision frequency control enabling grid connection and parallel operation.