Question: Why is there noise from the transformer when the UPS power supply is working on the mains?

by:Power Kingdom     2021-07-01
Label: Answer: When the UPS power transformer is overloaded, or the working state is unbalanced or unstable, it may make noise. In this case, please check whether the circuit connected to the transformer has poor contact, wire touch, short circuit, or turn-to-turn short circuit, and whether the components are damaged. If found, replace the transformer immediately to avoid serious impact. If there is no abnormality, it may be that there is too much dust on the UPS power transformer circuit board, and a bad connection plug causes the transformer to be overloaded. You can wipe it off with a soft alcohol cotton ball, but in the cleaning process, please turn off its power and remove everything. The plug is pulled out. be careful.
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