DC filtering capacitor

High voltage and high current working enviroment will accelerate the aging of capacitors that cause capacitor faulture easily. We started to commite to the research and develop on DC filter capacitor for HVDC from 2017 to responde to the national double carbon call. We studied on DC voltage distribution, the relationship among the number of series segments, leakage ratio and DC voltage non⁃uniform coefficient of capacitor shell connection elements is studied，and the conclusion that the more the number of series segments of the elements，the more the non⁃uniform of the DC voltage distribution.

We gradely master the key technology of how to make the large-capacity DC capacitor bank operating satisfactory.