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Power Fuse
- PF(Power fuse)
- Kyung Dong Power Fuse are available for the source-side continuity protection against faults at the transformer, cablefeeder or capacitor bank, and transformer protection against permanent secondary faults(whether the fuse is on the primary or secondary side).
- They are tested according to the latest revisions of ANSIC37.41-1998, and are also designed for sealing the fuse element against ingress of moisture, giving automatic isolation to the open position in the event of the fuse blowing.
- The main characteristics are :
•Full Range Fault Protection with 3-200 Anp. Fusing.
•Full Coordination with other Protective Devices.
•Very Good Performance on Small Over-Current.
Ratings
| Rated Voltage | 25.8kV | ||
|---|---|---|---|
| Rated Frequency | 60Hz | ||
| Rated Continuous Current | Fuse Supports | 200A | |
| Fuse Units | 3,6,8,10 12,15,20,25 30,40,50,65 80,100,140,200 |
||
| Rated Max. Interrupting Current | Symmentrical(r,m,s) | 12.5kA | |
| Asymmertical(r,m,s) | 20kA | ||
| Rated Insulation Level | Terminal to Ground | ||
| 60Hz Withstand Voltage | Dry | 1 Min. 70kV | |
| Wet | 10 sec. 60kV | ||
| Impulse Withstand Voltage | 150kV | ||
| Terminal to Terminal | 60Hz withstand Voltage | 77kV | |
| Impules Withstand Voltage | 165kV | ||