Apr 27,2023
What is the temperature rise of the transformer, and what is the temperature rise range of the transformer?
The temperature rise of a transformer is the difference between the temperature of the transformer's windings and the ambient temperature surrounding the transformer. It is an important parameter to consider when designing and operating transformers because excessive temperature rise can lead to premature aging and failure of the transformer's insulation system.
The temperature rise range of a transformer depends on its design and operating conditions. Generally, the temperature rise limit for most transformers is specified by industry standards and regulations, such as the IEEE C57.12.00 standard. According to this standard, the maximum temperature rise for dry-type transformers rated up to 10 MVA is typically 150°C above the ambient temperature. For liquid-immersed transformers, the maximum temperature rise can be as high as 65°C above the ambient temperature.
However, it's worth noting that the actual temperature rise of a transformer will depend on factors such as the transformer's load, cooling system, and operating environment. As a result, transformers are typically designed and tested to ensure that their actual temperature rise does not exceed the specified limit under normal operating conditions.
