| Brand | ROCKWILL |
| Series | RVD |
| Rated voltage | 145kV |
| Rated frequency | 60Hz |
| Rated normal current | 3000 A |
| Rated break time | 50 ms |
| Rated short-circuit breaking current | 63kA |
The RVD-145 Dead Tank Vacuum Circuit Breaker, launched by ROCKWILL, is a gas-insulated switchgear with a voltage rating of up to 145 kV. Its core features include the use of clean air as the insulation medium combined with vacuum interruption technology, aiming to achieve zero greenhouse gas emissions and zero global warming potential in power transmission.
Eco-Friendly Technology, Zero Environmental Impact:
Safe and Reliable, Zero Health Risks
Simple Operation, Zero Regulatory Burden
Excellent Performance, Zero Compromise
| Item | Parameters |
|---|---|
| Rated voltage | 145kV |
| Rated frequency | 50/60Hz |
| Rated short‑duration power‑frequency withstand voltage (1 min) | 275kV |
| Rated lightning impulse withstand voltage (1.2/50 us) | 650kV |
| Rated continuous current‑ bus bar / feeder bus coupler | 3150A |
| Rated short‑circuit breaking current | 50kA |
| Rated peak withstand current | 135kA |
| Rated short‑time withstand current (up to 3 s) | 50kA |
| Leakage rate per year and gas compartment (type tested) | <0.1% |
| Drive mechanism of circuit‑breaker | stored energy spring |
| Rated operating sequence | 0‑0.3 s‑C0‑3 min‑CO
|
| interrupter technology | vacuum |
| Insulation medium | clean air |
| Weight of SF6 or other fluorinated green‑house gases | 0 kg |
| Rated filling pressure | 0.8 MPa (abs.) |
| Bay width common pole drive | 1000 mm |
| Bay height depth (depending on bay arrangement) | 3.200/5,500 mm |
| Bay weight (depending on bay arrangement) | 6.0t |
| Ambient temperature range | -50°C +55°C |
| Installation | Indoor/outdoor |
| First major inspection | > 25 years |
| Expected lifetime | > 50 years |
| Standards | IEC/IEEE |

| RATED MAX. VOLTAGE | 145 kV |
|---|---|
| A (in/mm) | 89.2/2264 |
| B (in/mm) | 73.85/1876 |
| C (in/mm) | 122.9/3120 |
| D (in/mm) | 167.5/4254 |
| E (in/mm) | 51.83/1316 |
| F (in/mm) | 137.4/3490 |
| G (in/mm) | 65.9/1674 |
| H (in/mm) | 107.85/2739.5 |
| I (in/mm) | 97.5/2476 |
| J (in/mm) | 51.83/1316 |
| Air temperature | Maximum temperature: +55℃; |
| Minimum temperature: -50℃ | |
| Humidity | Daily average humidity 100%. |
| Above sea level | Maximum installation altitude: 1000m. |
Yes. Clean air is non-toxic and harmless. The vacuum interruption process produces no toxic decomposition products. No special safety measures are required during maintenance.
Zero greenhouse gas emissions and zero GWP (Global Warming Potential). Significantly exceeds current and future F-gas regulations.
Yes. Zero SF₆ and zero F-gases. The insulation medium is clean air, which is non-toxic, safe, and can be released directly into the atmosphere without contributing to the greenhouse effect.