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High Voltage DC Filtering Capacitor - 9000VDC Metalized Film - China Suppliers & Factory
General Information
1. Dielectric
Metallized film
2. Filling
epoxy resin
3. Flame Retardant Rating
UL94-V0
4. Housing
Fully sealed metal housing
5. Customization
Custom-made upon request
Technical Specifications
| Parameter | Specification Details |
|---|---|
| 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 development 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 Type
- 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
Q
What is the dielectric and filling material used in these DC filter capacitors?
The dielectric material used is metallized film, and the filling material is epoxy resin encased in a fully sealed metal housing.
Q
What are the temperature limits and rated voltage of these capacitors?
The working environment temperature ranges from -40℃ to 70℃, and the maximum rated voltage is up to 9KVDC.
Q
What is the flame retardant rating of the capacitors?
These capacitors feature a flame retardant rating of UL94-V0.
Q
Can these DC filter capacitors be customized for specific requirements?
Yes, custom-made specifications are available upon request to fit your design parameters.
Q
What installation configurations and protections are recommended?
The capacitor banks can be installed indoors or outdoors, connected in single star or double star configurations. Recommended installation protections include open delta voltage protection, differential voltage protection, differential current bridge protection, and unbalance current protection of the neutral point.