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How to choose a suitable adapter for a Roots blower?
Release time:
2022-04-24
There are many types of production machinery, with varying performance and process requirements, and their torque characteristics are also different. Therefore, before applying a frequency converter, it is essential to first clarify the nature of the load carried by the motor, which is the load characteristics, and then select the frequency converter. When choosing a frequency converter, the actual motor current value should be used as the basis for selection, while the motor's rated power can only serve as a reference. If the frequency converter is to operate with long cables, measures should be taken to suppress the impact of the long cable's ground coupling capacitance to avoid insufficient output from the frequency converter. Therefore, the frequency converter should be selected one level higher or an output reactor should be installed at the output end of the frequency converter. When the frequency converter is used to control several motors in parallel, it is crucial to consider that the total length of the cable from the frequency converter to the motor is within the allowable range of the frequency converter. If it exceeds the specified value, the frequency converter should be selected one or two levels higher. For loads with significant torque fluctuations, such as compressors and vibrators, and for peak load situations like oil pumps, it is important to understand the operating conditions at power frequency and select a frequency converter with a rated output current greater than its maximum current. When the frequency converter drives a submersible pump motor, since the rated current of the submersible pump motor is larger than that of a typical motor, the rated current of the frequency converter must be greater than the rated current of the submersible pump motor. Regarding the issue of selecting matching adapters, the editor of Mingfeng Machinery has organized the above content for everyone. If there are any questions, feel free to discuss them in the next issue.
There are many types of production machinery, with varying performance and process requirements, and their torque characteristics are also different. Therefore, before applying a frequency converter, it is essential to first clarify the nature of the load carried by the motor, which is the load characteristics, and then select the frequency converter. When selecting a frequency converter, the actual motor current value should be used as the basis for selection, while the rated power of the motor can only serve as a reference. If the frequency converter is to operate with long cables, measures should be taken to suppress the impact of the long cable's ground coupling capacitance to avoid insufficient output from the frequency converter. Therefore, the frequency converter should be selected one level higher or an output reactor should be installed at the output end of the frequency converter. When the frequency converter is used to control several motors in parallel, it is crucial to consider that the total length of the cable from the frequency converter to the motor is within the allowable range of the frequency converter. If it exceeds the specified value, the frequency converter should be selected one or two levels higher.
For loads with significant torque fluctuations, such as compressors and vibrators, and for peak load situations like oil pumps, it is important to understand the operating conditions at power frequency and select a frequency converter with a rated output current greater than its maximum current. When the frequency converter drives a submersible pump motor, since the rated current of the submersible pump motor is larger than that of a typical motor, the rated current of the frequency converter must be greater than the rated current of the submersible pump motor.Regarding the issue of selecting adapters, the editor of Mingfeng Machinery has organized the above content for everyone. If there are any other questions, feel free to discuss them in the next issue.
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