Diesel Generator Sensor

The most widely used sensors in modern automated diesel generator sets are: "speed sensor", "temperature sensor", and "oil pressure sensor".

Speed sensor

Generally speaking, the speed of a diesel generator set is stable, at 1500 or 1800 revolutions per minute. So the speed sensor, as the name suggests, is used to monitor the real-time speed of the diesel generator set. If the speed of the diesel generator set is not normal, there will also be problems with voltage and frequency, resulting in the diesel generator set being unable to operate normally.

Temperature sensor

In order to ensure the normal operation of the diesel generator set, it is necessary to detect the coolant temperature and fuel temperature inside the diesel generator set during operation, which requires the use of temperature sensors.

In the diesel generator set, the coolant temperature sensor is located on the cylinder on the front right side. Its function is to control the fan rotation, adjust the starting fuel supply, control the fuel injection timing, and protect the engine. The operating range of a typical diesel generator set is -40 to 140 ℃. If the temperature sensor fails, it will cause a decrease in engine speed and power, difficulty starting, and the generator will shut down. Most coolant temperature sensors in diesel generator sets use thermistors.

The fuel temperature sensor in the diesel generator set is installed on the top of the fuel filter housing. Its function is to control the fuel heater and protect the diesel generator set through temperature sensor signals. Once the sensor malfunctions, it will also affect the performance of the unit engine.

Oil pressure sensor

In order to ensure the normal operation of the diesel generator set, it is necessary to detect the oil pressure inside the diesel generator set during operation, which requires the use of an oil pressure sensor. If the oil pressure of the diesel generator set is too low, we need to check whether the oil pressure sensor is faulty. Diesel engines rely on lubricating oil for lubrication. Once the pressure of the lubricating oil is too low, various components of the diesel generator set will experience friction, causing component failures, heat distortion, and other faults. In severe cases, it can damage the diesel engine. Therefore, when using diesel generator sets, we should also regularly check whether the oil pressure sensor is normal.

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