Dry-type transformers require continuous operation of the fan for heat dissipation as temperatures rise. Although the fans of dry-type transformers are constantly in use, they are prone to excessive noise. What are the reasons for the excessive noise in dry-type transformers? The Jiangsu Jula editor will analyze this for you.
The reasons for the high noise of dry transformers are as follows:
1. Voltage Work Challenge
High working voltage can cause the transformer to overexcite the regulator, resulting in amplified and sharp noises, which immediately pose a severe threat to the transformer's noise level.
2. Vibration issues with fans, casings, and other components
Vibration of fans, casings, and other components can cause noise, which may be mistakenly attributed to transformer noise.
3. Installation challenges arise
Poor installation can exacerbate transformer vibration and increase the noise of larger transformers.
4. Installation of natural environment hazards
Environmental noise in operation conditions can amplify transformer noise, with natural environmental degradation increasing it by 3dB to 7dB.
Item 5: The challenge of busbar bridge vibration
Due to the large cross-sectional area of the busbar slots and the high electric current, leakage electromagnetic fields cause vibrations in the busbar slots. The vibration of the busbar bridge will significantly harm the transformer's noise, increasing it by approximately 15dB, making it difficult to distinguish from the transformer's noise. Generally, customers and installation companies may mistake it for the transformer's noise.
