What Size Diesel Engine is Needed for a 20 kW Generator?

[DeHarmony]

A 20 kW generator is typically paired with a 150 horsepower diesel engine. A generator is a device that converts mechanical energy into electrical energy. When conductors in a closed circuit within the generator move through a magnetic field, cutting the magnetic lines of force, an induced current is generated in the circuit. The mechanical energy required for this process is usually provided by equipment such as hydroelectric generating sets or thermal power generating sets (using diesel, gasoline, coal, etc.). When selecting a diesel generator set, it is essential to consider both its comprehensive performance and economic indicators. Users should determine the frequency of use and the maximum duration of each operation to decide the appropriate size of the diesel generator set needed. The output power of the generator set is usually indicated by the rated active power in kilowatts (KW), although some may also be labeled with the apparent power in kilovolt-amperes (KVA). When operating a diesel engine, it is important to check the following: whether the radiator is filled with water (or antifreeze in winter), whether the engine oil is at the specified level, and whether the diesel tank has sufficient fuel. Additionally, inspect the electrical starting system to ensure the wiring is normal and secure, the battery fluid level is adequate, and the voltage is maintained between 24V and 26V. Verify that the high-voltage transformer switch in the power room is disconnected, as well as the main city power switch in the low-voltage distribution room. Ensure that the generator input switch in the low-voltage power room and all branch loads powered by the generator are in the off position. Finally, check the diesel generator controller to confirm that the indicator lights show normal status (yellow and green lights on) and that the main switch is in the automatic position.