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High Voltage DC Filtering Capacitor - Metalized Film - 9000VDC - China Suppliers & Factory Direct Offer
General information
- 1Dielectric: Metallized film
- 2Filling: epoxy resin
- 3Flame retardant rating: UL94-V0
- 4Fully sealed metal housing
- 5Custom-made upon request
Technical Specifications
| Working environment | -40℃~70 ℃ |
| Rated capacitance | 500mF~20000mF +-5% |
| Rated voltage | Max 9KVDC |
| Dissipation factor tan | ≦0.001 |
| ESL | ≦30nH |
| Rs | ≦0.2mΩ |
| Max surge current | ≦770kA |
| Peak current | ≦50kA |
| Pole-to-case partial discharge test | ≦10pC |
| Withstand voltage between electrodes | 1.5Un DC, 60s |
Our Technical specialties
High voltage and high current working environment will accelerate the aging of capacitors that cause capacitor failure easily. We started to commit to the research and develop on DC filter capacitor for HVDC from 2017 to respond 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 gradually master the key technology of how to make the large-capacity DC capacitor bank operating satisfactory.
Guideline of DC filter capacitor bank installation
Installation Environment
- Outdoor
- Indoor
Connection
- Connected in single star
- Connected in double star
Protection of installation
- Open delta voltage protection
- Differential voltage protection
- Differential current bridge protection
- Unbalance current protection of neutral point
Frequently Asked Questions (FAQ)
Q:
What are the key materials used in the construction of these DC filter capacitors?
These capacitors utilize a metallized film dielectric and are filled with epoxy resin. They feature a flame retardant rating of UL94-V0 and are enclosed in a fully sealed metal housing.
Q:
What is the rated voltage and capacitance range of these capacitors?
The rated capacitance ranges from 500mF to 20000mF with a tolerance of +-5%, and the maximum rated voltage is up to 9KVDC.
Q:
Can these DC filter capacitors be customized for specific applications?
Yes, custom-made designs are available upon request to meet specific technical requirements and dimensions.
Q:
What are the installation protection guidelines recommended for these capacitor banks?
Recommended protection schemes include Open delta voltage protection, Differential voltage protection, Differential current bridge protection, and Unbalance current protection of the neutral point.
Q:
What is the working environment temperature range for these capacitors?
The capacitors are designed to operate reliably in working environments ranging from -40℃ to 70℃.