An open-frame diesel generator set is generally composed of several key modules that work together to deliver stable power output under different operating conditions.
1. Fuel System
Fuel is delivered from the tank to the engine through filtration and injection circuits. This system directly supports combustion efficiency and power output stability.
2. Alternator
The alternator converts mechanical energy into electrical energy. It is typically made up of stator windings, rotor assembly, excitation system, and transmission components. During operation, torque generated by combustion drives rotation, and electrical output is produced through electromagnetic induction.
3. Automatic Control System
The control system manages startup, shutdown, and critical real-time parameters, and provides fault alarms and protective actions. Modern intelligent controls help improve reliability, reduce labor demand, and increase operating efficiency.
4. Starting System
The starting motor initiates engine cranking by converting electrical energy into mechanical force, enabling fast and stable engine ignition.
5. Cooling System
Open-frame diesel units commonly use either air-cooled or enclosed water-cooled circulation. Typical operating coolant temperature is around 40°C to maintain thermal stability.
6. Support Frame
The frame is the structural base of the open-frame generator set. It supports major components and provides vibration isolation and load-bearing stability during continuous operation.