The actual service life of power capacitors has always been the concern of users and manufacturers, so why do some factories often replace power capacitors? What are the factors related to? The same capacitors have different actual service life due to different actual operating conditions. For this reason, the small library makes some analysis.
For example, the voltage environment in which the power capacitor is located, in general, the power capacitor has a rated voltage, and the rated voltage is the highest operating voltage at which the capacitor can continuously and safely operate in the power grid. If the capacitor is operated continuously at a voltage higher than its rated voltage, its reliability will decrease and its life will be shortened. Therefore, Cook Cooper suggested that you should consider the fluctuation of the system voltage and try to choose a higher power capacitor.
There is also the ambient temperature of the power capacitor, which has a great influence on the reliability and service life of the power capacitor. For this reason, the capacitors with the corresponding temperature categories should be correctly selected according to the actual conditions of the installation and use of the power capacitors, or the corresponding antifreeze, ventilation and cooling measures should be adopted. To ensure that the low voltage capacitor can operate within the temperature range specified by the temperature conditions specified in the technical conditions. Cook Cooper suggested that the temperature of the power capacitor should not be neglected. If the temperature is really too high, then you should consult the manufacturer if you can purchase the power capacitor. For example, Cook Cooper can customize the power capacitor up to 70°. .
The second reason is that the harmonics in the power grid running the power capacitor are too large, or the super-altitude operation; the mechanical stress of the capacitor terminal and the busbar are the causes of the early damage of the power capacitor, so Cook Cooper took Some corresponding measures, the production of power capacitors have enhanced the technology, such as dry inflation, over-voltage and over-current technology to ensure that power capacitors can serve users safely, reliably and with long life in the power grid.
The actual service life of power capacitors is related to what factors. Presumably, everyone has already understood that in the course of operation, everyone should pay special attention to the use environment. According to the environment, the selection of suitable low-voltage capacitors can ensure the effective implementation of power capacitors and reduce the number of replacements.