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English
Views: 1463 Author: Site Editor Publish Time: 2025-03-27 Origin: Site
When operating transformers normally under overload conditions, attention should be paid to several details.
Under normal operation, transformer load should not exceed its rated capacity. However, in special situations, it can operate overloaded within specified limits. The degree and duration of transformer overload are determined based on certain operating conditions such as load changes and ambient medium temperature, and also considering transformer insulation aging.
Let's take a closer look at what needs attention when transformers are normally overloaded:
1. Transformers that are almost fully loaded throughout the day should not be heavily overloaded.
2. In summer, according to the typical load curve of the transformer, if the highest load is lower than the transformer's rated capacity.
3. If the load factor of the transformer is less than 1 during low-load periods, then the allowable overload multiplier and duration during peak load periods are determined based on the annual equivalent ambient temperature, load curve, and the load carried by the transformer before overload.
