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UPS power supply must not be overloaded

by:Power Kingdom     2021-06-28
Label: In order to ensure the normal operation of the UPS power supply, it is very important that the UPS cannot be overloaded. Low-power UPS products are different from large-scale UPS with redundant design, which can only operate normally within its nominal output power range. Therefore, if the UPS runs in overload, due to the overload protection function of the inverter during the battery power supply process, the UPS will interrupt the output due to the overload, causing unnecessary losses. For example, an APC Back-UPS 650 cannot be connected to multiple loads such as PCs, printers, and plasma TVs at the same time. Once the Back-UPS power supply 650 has problems due to overload, various precision electronic instruments connected to it will also be affected or even dropped. Load. It should also be pointed out here that low-power UPS is suitable for receiving capacitive loads, such as personal PCs, inkjet printers, scanners, etc., but not suitable for receiving inductive loads. Because the starting current of the inductive load will often exceed 3 to 4 times the rated current, this will cause instantaneous overload of the UPS and affect the life of the UPS power supply. For example, electric fans, refrigerators, air conditioners, etc. commonly used in homes are all typical inductive loads and cannot be connected to the output end of the UPS power supply.
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