| Marka | ROCKWILL |
| Seri | RHB |
Equipped with CT-type spring mechanism, this outdoor live tank SF₆ breaker serves 50Hz three-phase grid for circuit control and protection, allowing single/three-pole switching and auto-reclosing.
With three-phase post porcelain structure and self-blast arc extinction, SF₆ fills all poles for insulation and arc quenching. Pointer density relay tracks gas status. Compact, low-power, low-noise and easy to install; customization supported.
Three-phase post porcelain construction: Single shared spring mechanism for synchronized three-pole operation, neat compact layout for outdoor installation.
Integrated SF₆ gas system: Interconnected gas chambers across three poles; SF₆ serves as insulation & arc-quenching medium to guarantee steady performance.
Pointer density relay: Real-time SF₆ pressure & density monitoring for early fault warning and safe running.
Self-blast arc extinction: Lower required operating power and improved mechanical efficiency.
Customization available: Tailored design to satisfy individual project requirements, consult our sales team for details.
RHB-252
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 252 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 460 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 530 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1050 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 1200 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30～+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | ＜5 |
| Annual SF₆ leakage rate | — | ＜0.5% |
| Maintenance cycle | Year | 30 |
RHB-420
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 420 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 740 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 850 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1425 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 1550 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30～+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | ＜5 |
| Annual SF₆ leakage rate | — | ＜0.5% |
| Maintenance cycle | Year | 30 |
RHB-550
| Item | Unit | Parameter |
|---|---|---|
| Rated voltage | kV | 550 |
| Rated frequency | Hz | 50/60 |
| Rated current | A | up to 5000 |
| Rated short-time withstand current, up to 3 s | kA | up to 63 |
| Rated peak withstand current | kA | up to 158 |
| Rated short-duration power-frequency withstand voltage, 1 min | kV | 830 |
| Power-frequency withstand voltage, 1 min across open contacts | kV | 950 |
| Rated lightning impulse withstand voltage, 1.2/50 μs | kV | 1675 |
| Rated lightning impulse withstand voltage, 1.2/50 μs, across open contacts | kV | 2125 |
| Rated filling pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.6 |
| Minimum functional pressure (abs. at 20 ℃) circuit-breaker | MPa | 0.5 |
| Temperature range (ambient) | ℃ | -30～+40 |
| Type of installation | — | outdoor |
| Partial discharge | pC | ＜5 |
| Annual SF₆ leakage rate | — | ＜0.5% |
| Maintenance cycle | Year | 30 |
Ambient temperature: -30℃～+40℃
Altitude: ＜1000m
Max wind speed: ＜34m/s
Daily temperature variation: ＜25℃
Solar irradiance: ＜0.1W/cm²
Monthly average RH: ＜90%
Ice coating: ＜10mm
Seismic resistance: Horizontal＜0.2g, Vertical＜0.1g
Mounting: Outdoor
RHB-245
LW10B \ lLW36 \ LW58 serisi ürünler örnekleme kitapçığında, ABB'nin LTB serisine dayalı olarak geliştirilmiş porselen sütunlu SF₆ devre kesicileridir, 72.5kV-800kV voltaj kaplaması ile, Auto Buffer ™ kendi enerjisini sağlayan söndürme teknolojisi veya vakum söndürme teknolojisi kullanılarak, entegre yay/motor sürücülü işletim mekanizmasıyla, çeşitli özelleştirilmiş hizmetleri destekler, 40.5-1100kV tam voltaj seviyelerini kapsar, çok iyi modüler tasarım ve güçlü özelleştirme yeteneğine sahiptir, farklı elektrik şebekesi yapılarına esnek uyum için gerekli projelere uygundur. Çin'de üretilmiştir, hızlı küresel hizmet yanıt hızına, yüksek lojistik verimliliğine ve makul bir fiyata yüksek güvenilirliğe sahiptir.
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