What is the difference between variable-frequency pumps and fixed-frequency pumps?
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This post was last edited by lijianhuai on 2011-5-13 at 13:18. What is the difference between variable-frequency pumps and standard-frequency pumps? Do your systems have such differences among pumps? Also, why are two different types of pumps used initially? What are the differences when switching between them?
Reply to 1# Cracking Man: The pumps are the same, and the operation is the same as well； It is simply the motor whose speed is adjusted using frequency conversion to achieve energy savings ； In fact, there are many disadvantages to this approach, such as high investment costs, harmonic pollution of the power grid, and easy automatic shutdown during frequency conversion operations ； It is best if the designers do a proper calculation of the pump. Those in the design field need to work harder; we’re here to support them
1. Switching between variable-frequency pumps and fixed-frequency pumps: http://bbs.hcbbs.com/viewthread.php?tid=286021&highlight=%B1%E4%C6%B5%B1%C3 2. How to adjust a variable-frequency pump, how to enable automatic mode, and what precautions should be taken when using it: http://bbs.hcbbs.com/viewthread.php?tid=836730&highlight=%B1%E4%C6%B5%B1%C3 3. The principle of variable-frequency pumps: http://bbs.hcbbs.com/viewthread.php?tid=171820&highlight=%B1%E4%C6%B5%B1%C3
Variable-frequency equipment requires significant investment, and care must be taken when switching between variable frequency and fixed frequency