The ZN 23-40.5 super elevated life vacuum circuit breaker is rated voltage 40.5kV
General
The ZN 23-40.5 super elevated life vacuum circuit breaker is rated voltage 40.5kV,three-phase AC Hz indoor high voltage electric appliance equipment.lt is suitable for using in industry and mining enterprise, transformer substation and so on for cntrolling and protecting switch-gear, especially for the metallurgy,the electric arc steel-making and so on where needs the frequently operation for control and protection device.
This product conforms to GB1984A.C high voltage Circuit breakerstandard.
Main Technical Parameter
Parameter name | Unit | Data |
Rated voltage | kV | 4O.5 |
Lightning impulse withstand voltage (peak value) | kV | 185 |
Lmin power frequency withstand voltage | kV | 95 |
Rated frequency | Hz | 50 |
Rated current | A | 1250,1600,2000 |
Rated short-circuit breaking current | kA | 25,31.5 |
Rated short-time withstand current | kA | 25,31.5 |
Rated peak value withstand current | kA | 63,80 |
Rated short-circuit duration | S | 4 |
Rated short-circuit breaking time | ms | 90 |
Rated short-circuit making current | kA | 63,80 |
Rated operation sequence | O-0.3s-CO-180s-CO |
Pqrameter | Unit | Data |
Closing time | ms | 50∼85 |
Opening time | ms | 40∼85 |
Rated capacitor bank breaking current | Time | 20 |
Mechanical life | Time | 10000 |
Rated capacitor bank breaking current | A | 630 |
Stored energy electrical machinery rated power | W | 275 |
Stored energy electric motor rated voltage | V | 220.110 |
Stored energy time | S | 15 |
Operation voltage | V | 220.110 |
Overcurrent release rated current | A | 5 |
Auxiliary contact rated current | A | 10 |
