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Description
ZN63(VS1)-24 series handcart type indoor vacuum circuit breaker is rated voltage 24kV, three-phase AC50Hz Indoor high-voltage switchgear, apply for power stations, substations, and industrial and mining enterprises to control or protection transmission and distribution systems, specially for the important high altitude breaking load and frequent operation place.
Circuit breaker manufacturing accordance with our national standard GB1984-2003<AC high voltage circuit breakers>,DL / T403-2000<3.6~40.5kV Indoor Vacuum Circuit Breaker ordering technology>; and the related IEC standards And reliable interlock function.
Technical data
| NO | Item | Units | Parameters |
| 1 | Contact distance | mm | 14±1 |
| 2 | Contact Over travel | mm | 3.5±1 |
| 3 | Closing speed | m/s | 1.0±0.2 |
| 4 | Opening speed | m/s | 1.3±0.2 |
| 5 | Contact closing spring time | ms | ≤2 |
| 6 | Rated contact pressure | N | 20kA(2400 ± 200)25kA(2400 ± 200)31.5kA(3100 ± 200) |
| 7 | Three phase closing opening asynchrony | ms | ≤2 |
| NO | Item | Units | Parameters |
| 1 | Rated voltage | kV | 24 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 42 |
| 4 | Rated short-circuit breaking current | kA | 630, 1250, 1600, 2000, 3150 |
| 5 | Rated short- circuit closing current(peak) | kA | 20,25,31.5 |
| 6 | Rated short -circuit duration time | s | 50, 63, 80 |
| 7 | Rated short -circuit breaking current breaking number | Times | 4 |
| 8 | Rated operating sequence | 30 | |
| 9 | 1 min Power frequency withstand voltage | kV | O-0.3s-CO-180s-CO |
| 10 | Rated Lightning impulse withstand voltage | kV | 125 |
| 11 | Closing time | ms | 65 |
| 12 | Opening time | ms | ≤70 |
| 13 | Mechanical life | Times | ≤50 |
| 14 | Rated storage and operation voltage | V | 220/110 |
| 15 | Breaking life | ms | ≤80 |
| 16 | Storage life | s | ≤10 |
ZN63(VS1)-24 series vacuum switch vacuum circuit breaker circuit breaker vacuum
ZN63(VS1)-24 series vacuum switch vacuum circuit breaker circuit breaker vacuum