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JOEO High Low Temperature test chamber (walk in climate chamber/walk in chambers) from ALI Testing Equipment co for High temperature test and low temperature test of diesel generator sets applicant for the industry and relevant data are extremely strict on electricity consumption. The parallel operation test is the test that should be taken by most of the multi-equipment parallel operation units in order to check the correctness of the parallel operation and achieve the purpose of having good performance indicators before the equipment is put into use.

1. High temperature environment adaptability test
After standing for 6h in a high temperature environment (40℃ or 45℃, according to the requirements of technical conditions), the generator set is continuously run under rated working conditions to a hot state. After that, the winding temperature is measured in accordance with the provisions of the preceding relevant provisionsSteady-state adjustment rate and fluctuation rate of rise, voltage and frequency. During continuous operation, the relevant data are recorded every 0.5h (simultaneous heat test). During the test, the requirements for the generator set are the same as the 12h continuous operation test.

1-1. Engine flameout protection:Engine flameout protection is an important function in high temperature test, it is to protect the engine from damage. When the engine temperature is too high, the engine management system automatically takes action to stop the engine from working. This prevents damage to the engine due to overheating, which can affect the service life of the engine in the long term.

1-2. Engine matching test:Engine matching test in high temperature test of generator set is a part of testing the performance of generator set in high temperature environment. The purpose of this test is to ensure that the engine and other generator set systems, such as cooling systems, fuel systems and emissions systems, are matched at high temperatures. In this test, the generator set will operate in a simulated high temperature environment and undergo performance and emissions testing. In addition, the various systems of the generator set will be inspected in detail to ensure normal operation in a high temperature environment. Engine matching testing is an important part of high temperature testing, as it can help ensure the performance and safety of the generator set in high temperature environments. If any mismatch is found in the high temperature test, the manufacturer can correct it before release, so as to avoid problems during use.

1-3. Electrical system performance:Check the performance of electronic systems in high-temperature environments, including electronic control units (ECUs), ignition systems, and fuel management systems. In the high temperature test of the generator set, the temperature test of the ECU (electronic control unit) and various sensors is an important part of the performance test of the generator set in a high temperature environment. The ECU is the central control unit of the generator set, which monitors and controls the various systems of the generator set. Therefore, it is important to test the temperature of the ECU in a high-temperature test to ensure that it works properly in a high-temperature environment. Similarly, various sensors (such as temperature sensors, pressure sensors and speed sensors, etc.) play an important role in the control and monitoring of the generator set. Therefore, it is also important to test the temperature of various sensors in high temperature tests to ensure that they work properly in high temperature environments. In general, the temperature test of the ECU and various sensors is an important part of the high temperature test of the generator set to ensure the performance and safety of the generator set in high temperature environments.

2. Low temperature environment adaptability test

2-1. JOEO Walk in High Low Temperature Test Chamber/walk in chambers for high and low temperature comprehensive environment simulation laboratory, the room temperature is lowered to -55℃, heat preservation for 48 hours, and then it is heated to -40℃, heat preservation for 12 hours, and normal temperature is restored. Results It was found that the generator set was successfully started at low temperature after 11 minutes and 20 seconds. The steady-state voltage adjustment rate, steady-state frequency adjustment rate, steady-state voltage fluctuation rate, and steady-state frequency fluctuation rate were -0.880%, -0.036%, 0.175% and 0.175% respectively0.080%. During the test, the plastic parts, rubber parts and metal parts of the prototype did not fail. Conclusion The start-up performance, electrical performance and structural materials of the generator set meet the requirements of low temperature environment adaptability, and provide a guiding method for other generator sets' low temperature environment adaptability assessment.

2-2. On-site physical testGenerally, low-temperature test of diesel generator sets is carried out in the extremely cold region in the north. The first choice is to fill the low-temperature test generator set with low-temperature fuel oil, oil and antifreeze coolant (water cooled for internal combustion engine), and equip the starting battery with sufficient capacity (electric starter for internal combustion engine). Then the generator set is static at the specified low temperature (generally -40℃~-25℃ or -15℃) or according to the requirements of the technical conditions in the environment of more than 12h (for rated power above 12kW), or more than 6h (for rated power below 12kW).

Under the above conditions, determine the insulation resistance of each independent circuit to the ground and between each other, and the measured value should meet the requirements of the general motor. Start the generator set according to the starting method specified in the instruction manual, the longest time required from the start to the successful start should not be more than 30in. After the successful start, the generator set should be brought with the rated load within 3 minutes, and the water temperature and oil temperature of the diesel engine should be continuously worked to reach the normal value, and the steady-state adjustment rate and fluctuation rate of the voltage and frequency should be determined in accordance with the relevant regulations. Finally, stop to check the plastic parts, rubber parts and metal parts on the generator set, and there should be no breakage.

JOEO Walk in High Low Temperature Test Chamber can support all types of extreme environment temperature testing for your requried Generator sets. 

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