Disjuntor de vácuo para exterior ZW32 de 40,5 kV para alta tensão
Descrições dos produtos
O ZW32-40.5/1250A é um disjuntor de vácuo de alta tensão para instalação no exterior, concebido para sistemas de energia trifásicos de corrente alternada a 40,5 kV e 50 Hz. Em conformidade com as normas GB1984, JB3855 e IEC, proporciona um controlo e proteção fiáveis para equipamentos elétricos em empresas industriais e mineiras, centrais elétricas e subestações.
With excellent multiple and fast breaking performance, it ensures stable operation and strong system protection, especially for frequent operating conditions.
Environmental conditions
- Ambient Temperature: -35°C to +45°C
- Relative Humidity: Monthly average up to 90%, daily average up to 95%
- Saturated Vapor Pressure: Daily average not exceeding 2.2×10⁻³ MPa; Monthly average not exceeding 1.8×10⁻³ MPa. Condensation may occur in high humidity and temperature drops.
- Altitude: Up to 2000 meters
- Earthquake Intensity: Not exceeding 8
- Environmental Conditions: No fire, explosion risks, severe pollution, chemical corrosion, or intense vibration.
- Customization: The product can be customized according to specific requirements.
Parâmetros técnicos
| 1 | Rated voltage | kV | 40.5 | |
| 2 | Rated current | A | 1250/1600/2000/2500 | |
| 3 | Rated frequency | HZ | 50/60 | |
| 4 | Rated insulation level | Lightning impulse withstand voltage | kV | 185 |
| 1 min power-frequency withstand voltage | 80, 95/95 | |||
| 6 | Rated short-circuit breaking current | kA | 25/31.5 | |
| 7 | Rated short-circuit making current (peak value) | kA | 63/80 | |
| 8 | Rated short-time withstand current | kA | 25/31.5 | |
| 9 | Rated withstand current (peak value) | kA | 63/80 | |
| 10 | Rated operating sequence | O-0,3s-CO-180s-CO | ||
| 11 | Rated short-circuit duration | s | 4 | |
| 12 | Times of breaking with the rated short-circuit current | Tempos | 30 | |
| 13 | Mechanical life | 10000 | ||
| 14 | Mechanism control voltage | V | AC/DC220 | |
| 15 | 1min secondary circuit power frequency withstand voltage | kV | 2 | |
| 16 | Contact open distance | mm | 16 ±1 | |
| 17 | Contact Over-travel | mm | 4±0.5 | |
| 18 | Velocidade média de abertura | m/s | 1.4±1.8 | |
| 19 | Velocidade média de fecho | m/s | 0.4-0.8 | |
| 20 | Three phase simultaneity | ms | ≤2 | |
| 21 | Tempo de ressalto do fecho do contacto | ms | ≤5 | |
| 22 | Main circuit DC resistance per phases | μΩ | ≤80 | |
| 23 | Polar distance | mm | 460 ±2 | |
| 24 | Horário de funcionamento | ms | ≤50 | |
| 25 | Hora de fecho | ms | ≤100 | |
Disjuntor de vácuo para exterior ZW32 de 40,5 kV para alta tensão
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