ZW32 40.5KV Outdoor Vacuum Circuit Breaker MV HV VCB With Disconnector
ZW32-40.5KV Out Door MV HV VCB with disconnector Outdoor Vacuum Circuit Breaker
ZW32-40.5 outdoor high-voltage alternating-current vacuum circuit breaker is a new outdoor high-voltage alternating-current switchgear of our vacuum circuit breaker series. Its rated voltage is 40.5kV. It applies to places with such voltage level, including overhead lines, industria and mining enterprises, power stations, substations, etc. Under its normal operating conditions and specified technical parameters, it can the system protection requirements of the grid. It is charaterized by automatic re-making, stble operation and long elecric life.
Technical Parameter
1.1 Technical parameters
| ltem | Unit | Reference value | |
| Rated voltage | kV | 40.5 | |
| Rated insulation level | Lightning impulse withstand voltage | kV | 185 |
| 1min power- frequency withstand voltage | kV | 95 | |
| Rated frequency | Hz | 50/60 | |
| Rated current | A | 630/1250/1600/2000/2500 | |
| Rated short-circuit breaking current | kA | 20/25/31.5 | |
| Rated short-circuic making current (peak value) | kA | 50/63/80 | |
| Rated short-time withstand current | kA | 20/25/31.5 | |
| Rated withstand current (peak value) | kA | 50/63/80 | |
| Rated operation sequence | O-0.3s-CO-180s-CO | ||
| Rated short-circuit duration | s | 4 | |
| Times of making-breaking with the rated short-circuit current | Times | 30 | |
| Mechanical life | M2 level | ||
| Weight | kg | 280 | |
| Standard |
1.IEC 62271-100 High-voltage switchgear and controlgear 2.GB/T 11022 -2011 Common specifications for high-voltage switchgear and controlgear standards 3.GB 1984 High-voltage alternating-current circuit-breakers 4.GB311.1 Insulation co-ordination for high voltage transmission and distribution equipment |
| Ambient condition |
1. Altitude: ≤ 2000m 2. Ambient temperature: -40°C~+40°C 3. Relative humidity:≤95% (daily average) or≤90% (monthly average) 4. Ambient pllution: IV 5.Wind speed:≤34m/s (equivalent to a pressure of 700pa on a cylindrical surface) .
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