When choosing a diesel generator, you need to consider several key factors, including capacity, number of units, speed, voltage, and specific use and environmental conditions. Here are some specific selection criteria:
1. Capacity selection: It should be selected based on the output power of the unit for long-term continuous operation to ensure that it can meet the calculated load of the entire project. The common output power of a diesel generator set is generally 0.9 times the rated output power.
2. Number selection: It is generally recommended to select two or more units to maintain the continuity of power supply and adapt to changes in power load. The economic operating state is usually between 75% and 90% of the rated power.
3. Speed selection: Civil diesel generator sets generally use high-speed units with a speed of 1000 to 1500 rpm.
4. Voltage selection: Usually 400V, suitable for most standard applications. For individual projects with large power consumption or long transmission distances, high-voltage generator sets can be selected.
5. Purpose and environmental conditions: According to the different uses of diesel generators (such as common, standby or emergency), select the appropriate unit. At the same time, consider environmental factors such as altitude, climate conditions, noise restrictions, etc., which will affect the performance and efficiency of diesel generator sets.
6. Automation function and economy: Consider choosing a diesel generator set with full automation functions, including automatic start, shutdown, speed regulation, etc., to improve efficiency and safety. At the same time, comprehensively consider the long-term use cost and maintenance cost, and choose a generator set with high cost performance.
