Description:
ZN63(VSI)-12 series indoor high voltage solid vacuum circuit breaker adopts solid insulation structure and advancedepoxy solid sealing technology.Vacuum interrupter,main conductive loop and insulation support are integratedinto a solid-sealed pole for the first time.The problem of environment tolerance of vacuum circuit breaker is solvedsuccessfully,which makes it more widely used.The integrated solid-sealed pole adopts the self-convectionpatented ventilation technology,which subtly solves the p...Description:
Its high-life vacuum interrupter and epoxy casting sealing technology ensuremaintenance-free integrated solid-sealed poles,and high-reliability permanent mognet operaling Mechanismensures maintenance-free operation of the operating mechanism.ZN63(VSI)-12 series indoor high voltage solid Vacuum Circuit Breaker adopts solid insulation structure and advancedepoxy solid sealing technology.Vacuum interrupter,main conductive loop and insulation support are integratedinto a solid-sealed pole for the first time.The problem of environment tolerance of vacuum circuit breaker is solvedsuccessfully,which makes it more widely used.The integrated solid-sealed pole adopts the self-convectionpatented ventilation technology,which subtly solves the problem of heat dissipalion caused by the solid insulationstructure. ZN63(VS1)-12 series indoor high voltage solid vacuum circuit breaker is the first circuit breaker in China to realizethe maintenance-free concept.Its high-life vacuum interrupter and epoxy casting sealing technology ensuremaintenance-free integrated solid-sealed poles,and high-reliability permanent mognet operaling mechanismensures maintenance-free operation of the operating mechanism.The electronic control part abandons the traditional Auxiliary Switch,uses the photoelectric proximity switch,and uses the fully electronic power supply andintelligent control unit to ensure the maintenance-free operation of the electronic control part.
No. | Item | Unit | Data | ||||
1 | Rated voltage | KV | 12 | ||||
2 | Max.working voltage | KV | 12 | ||||
3 | Rated current | A | 630 1250 | 630 1250 1600 2000 2500 3150 | 1250 1600 2000 2500 3150 4000 | ||
4 | Rated short circuit breaking current (Rated thermal stability current (RMS)) | KA | 20/25 | 31.5 | 40 | ||
5 | Rated short-circuit current (peak) | KA | 50/63 | 80 | 100 | ||
6 | Rated dynamic stability current (peak) | KA | 50/63 | 80 | 100 | ||
7 | 4S Rated withstand current | KA | 20/25 | 31.5 | 40 | ||
8 | Rated insulation level | Power frequency withstand voltage (rated breaking before and after)/1 min power frequency withstand voltage | KV | To earth 42 (Between open contacts) | |||
Impulse withstand voltage(rated breaking before and after)/Lightning impulse withstand voltage (peak) | To earth 75 (Between open contacts | ||||||
9 | Rated thermal stability time | S | 4 | ||||
10 | Rated operating sequence | O-0.3S-CO-180S-CO | |||||
11 | Mechanical life | Times | 20000 | ||||
12 | Rated short circuit current breaking time | Times | 50 | ||||
13 | Rated operating mechanism closing voltage (DC) | V | AC、DC 110,220 | ||||
14 | Actuator voltage of the floodgate (DC | V | AC、DC 110,220 | ||||
15 | Contact stroke | mm | 11±1 | ||||
16 | Overtravel(the length of contact spring compression) | mm | 3.5±0.5 | ||||
17 | Three-phase points,closing phase asynchronous | Ms | ≤2 | ||||
18 | Contact closing bounce time | ms | ≤2 | ||||
19 | Average opening speed | m/s | 0.9~1.2 | ||||
Average closing speed | m/s | 0.5~0.8 | |||||
20 | Opening time | Under max.operating voltage | S | ≤0.05 | |||
21 | Under min.operating voltage | ≤0.08 | |||||
22 | Closing time | S | 0.1 | ||||
23 | The main circuit resistance of each phase | μΩ | 630≤50 | 1250≤45 | |||
24 | Allowed comision thickness for fixed and movable contacts | mm | 3 | ||||
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