The Output Current of Generator Set Varies with The Altitude

As the altitude increases, the ambient temperature is also lower than that in the plain area. Generally, for every 1000M increase, the ambient temperature will drop by about 0.6 degrees celsius. In addition, due to the thin air in the plateau, the engine performance of the diesel engine of the generator set is worse than that in the plain area. . When using it, the user should take the auxiliary starting method corresponding to the low temperature starting.

Due to the increase of altitude, the lowering of the boiling point of water, the reduction of the wind pressure and cooling air quality of the cooling air, and the increase of heat dissipation per kilowatt unit of time, the cooling system has a worse heat dissipation condition than the plain. Generally, the open cooling cycle should not be used in the plateau altitude area, and a pressurized closed cooling system can be used to advance the boiling point of the coolant when used in the plateau.

In the plateau area, due to changes in environmental factors, the actual operating conditions of the generator set equipment are quite different from the original planning conditions. Affected by the special environmental conditions of the plateau, the power of the generator set prime mover decreases, the oil and diesel fuel consumption increases, and the heat load The increase will have a greater impact on the power and primary electrical parameters of the generator set. Below, Dingbo power generation equipment starts from the theoretical analysis, combined with examples, to discuss the impact of the plateau environment on the performance of the generator set.

Due to the low air pressure in the plateau area, the air is thin and the nutrient content is low. Especially for the naturally aspirated diesel engine, the combustion conditions are deteriorated due to the lack of intake air, so that the diesel engine cannot declare the original specified rated power. Even if the diesel engines are basically the same, the calibration power of each type of diesel engine is different, so their ability to work at high altitudes is different.

The output current of the generator set will vary with the altitude. As the altitude increases, the power of the generator set, that is, the output current, and the fuel consumption rate increase. This influence also affects the electrical utility target to varying degrees.

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