| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Electric Type |
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Zn63 (VS1) - 12 series indoor handcart type high voltage vacuum circuit breaker is an indoor switchgear with three-phase AC 5ohz and rated voltage of 12kV. It can be used for the control and protection of industrial and mining enterprises, power plants, substations and electrical facilities, and is suitable for places with frequent operation. The operating mechanism is integrated with the circuit breaker body, which can be used as a fixed installation unit or a special propulsion mechanism to form a handcart unit. The main circuit part can adopt the integral fixed sealing pole to realize the miniaturization, high reliability and maintenance free of the circuit breaker. It can be equipped with kyn28a-12 (GZS) and other middle mounted handcart type switchgear, and the fixed type can also be used for XGN series fixed switchgear.
| serial number | Projects | unit | data | ||||
| 1 | Rated voltage | KV | 12 | ||||
| 2 | Maximum operating voltage | KV | 12 | ||||
| 3 | Current rating | A | 630 1250 |
630,1250 1600,2000 2500,3150 |
1250,1600 2000,2500 3150,4000 |
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| 4 | Rated short-circuit breaking current (rated thermal stability current - RMS) | KA | 20/25 | 31.5 | 40 | ||
| 5 | Rated short-circuit closing current (peak) | KA | 50/63 | 80 | 100 | ||
| 6 | Rated Peak Withstand Current (Rated Thermal Stability Current - RMS) | KA | 50/63 | 80 | 100 | ||
| 7 | 4S rated short-circuit withstand current | KA | 20/25 | 31.5 | 40 | ||
| 8 | Rated insulation level |
Working withstand voltage (before and after rated breaking) 1min power frequency withstand voltage | KV | To the ground 42 (fracture 48) | |||
| Edge horizontal impulse withstand voltage (before and after rated breaking) / rated lightning impulse withstand voltage peak | To the ground 75 (fracture 85) | ||||||
| 9 | Rated thermal settling time | S | 4 | ||||
| 10 | Rated sequence of operations | Minutes - 0.3S-combines-180S-combines | |||||
| 11 | Mechanical life | times | 10000 | ||||
| 12 | Rated number of short-circuit interrupting currents | times | 50 | ||||
| 13 | Rated closing voltage of operating mechanism (DC) | V | AC,DC110,220 | ||||
| 14 | Ratde, Openin, Voltaji, Ben, Opelatin, Mechanism (DE) | V | AC,DC110,220 | ||||
| 15 | Contact opening distance | mm | 11±1 | ||||
| 16 | Overtravel (contact spring compression length) | mm | 3.5±0.5 | ||||
| 17 | Three-phase splitting, closing bounce time | Ms | ≤2 | ||||
| 18 | Contact closing bounce time | MS | ≤2 | ||||
| 19 | Average opening speed | m/s | 0.91.2 | ||||
| 20 | Average closing speed | m/s | 0.59.8 | ||||
| 21 | Opening time | at the highest operating voltage | S | ≤0.05 | |||
| at the lowest operating voltage | ≤0.08 | ||||||
| 22 | Closing time | S | 0.1 | ||||
| 23 | The resistance of the main loop of each phase | μΩ | 630≤50 | 1250≤45 | |||
| 24 | Static and dynamic contacts allow for wear and accumulated thickness | mm | 3 | ||||
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