Table 2 General comparison between ACCB and DCCB
From: Circuit breakers in HVDC systems: state-of-the-art review and future trends
| Â | ACCB | DCCB |
|---|---|---|
Interruption time | Tens of milliseconds (80–100 ms) | 2–10 ms |
Interruption mechanism | Utilizing natural zero crossing in fault current to extinguish the arc and interrupt the AC fault current | Utilizing additional branches to create a current zero crossing for the fault current interruption |
Max. breaking current | 40–60 kA | 16–25 kA |
Standardization | IEEE c37.06 | No standards for DCCB |
Development state | Commercially available | In research and development stage |