Suitable Load For 550KW Silent Diesel Generator Set

What is the most appropriate load for a silent 550KW diesel generator set?

Both too small and too large loads for diesel generator sets are unfavorable as they can cause harm. Overloading during operation is strictly prohibited. Long-term full-load operation can cause significant damage to components such as the cylinder block and crankshaft, leading to rapid aging, deformation, and breakage of internal parts, thereby reducing the service life of the generator set. When a diesel generator operates under light load for an extended period, incomplete diesel combustion occurs, resulting in severe carbon deposition over time, which also causes considerable damage to the generator set.

What is the most appropriate load for a silent 550KW diesel generator set?

A load range of 110KW - 440KW is suitable for a silent 550KW diesel generator set. Guangxi Dingbo Power believes that when the load of the diesel generator set reaches 0.8 times its output power, this serves as the actual output power of the generator set. This ensures that the generator set does not operate under overload conditions and also prevents long-term low-load operation, thereby extending the service life of the diesel generator set.

Ambient Temperature and Altitude: The engine can operate under the following conditions without power adjustment: For engines with a speed of 1800r/min, the altitude should be below 1525m (5000ft) and the ambient temperature below 40℃ (104°F). For engines with a speed of 1500r/min, the altitude should be below 1525m (5000ft) and the ambient temperature below 40℃ (104°F).

When the diesel generator set operates beyond the above conditions, for every 300m (1000ft) increase in altitude above 1525m (5000ft), the power should be reduced by 4%. When the ambient temperature is above 40℃ (104°F), for every 11℃ increase, the power should be reduced by 2% (equivalent to a 1% reduction for every 10°F increase).

Load calculation for silent diesel generator

When purchasing a diesel generator set, the required power depends on the electricity consumption. For example, for a real estate project needing a generator set, the calculation can be done as follows: fire-fighting equipment 100KW, elevator operation 200KW, emergency lights 40KW, and other equipment 100KW. The total electricity consumption is 440KW, so a 550KW diesel generator set can be selected. To accommodate future development, a larger capacity, such as 600KW, can also be chosen. Some users, in an attempt to save costs, tend to calculate their electrical load to the maximum. For instance, if the full load reaches 440KW, they only want to purchase a 440KW diesel generator set. This idea is not advisable. Long-term full-load operation of the generator set can cause significant damage to components like the cylinder block and crankshaft, reducing the service life of the generator set.

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