CA-VS1-12/24E
Indoor Vacuum Circuuit Breaker
12kV 24kV Drawout type
630A 1250A 1600A 2000A 2500A 3150A
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Description
General
These vacuum circuit breakers are designed for three phase AC 50Hz power system with rated voltages of 12, used as protection and control unit for grid equipment and power equipment of industry and mining enterprises. They are suitable for areas where frequent operations of rated operating current or multiple switching of short circuit current are required. The operating mechanism is integrated into the circuit breaker body. The circuit breaker can be installed as a fixed unit, or equipped with a truck or a withdrawable part to easily move into the switchgear.
Environmental Conditions
Environmental Conditions
◆ Ambient temperature: up to +40°C, greater than -15°C;
◆ Altitude: lower than 1000 m;
◆ Ambient humidity: Daily average relative humidity: ≤ 95%; Monthly average relative humidity: ≤ 90%; Daily average vapor pressure: ≤2.2×10-3 MPa; Monthly average vapor pressure: ≤1.8×10-3 MPa;
◆ Earthquake intensity: ≤ magnitude 8;
◆ Areas without risks of fire, explosion, pollution, chemical corrosion and severe vibration;
Specifications
Technical Parameters
| Item | Unit | Parameter | ||
| Rated voltage | kV | 12 | 24 | |
| Rated lightning impulse withstand voltage | kV | 75/85 | 125/145 | |
| Power frequency withstand voltage (1 min) | kV | 42/48 | 65/79 | |
| Rated short-circuit making current | kA | 25,31.5,40 | 25,31.5,40 | |
| Rated current | A | 630, 1250 1600, 2000 2500, 3150 | 630, 1250 1600, 2000 2500, 3150 | |
| Rated thermal current | kA | 25,31.5,40 | 25,31.5,40 | |
| Rated dynamic current(peak) | kA | 63,80,100 | 63,80,100 | |
| Rated short-circuit breaking current(Peak) | kA | 63,80,100 | 63,80,100 | |
| Rated operating sequence | 0—0.3—CO—180s—CO | 0—0.3—CO—180s—CO | ||
| 〇-I80s-CO-180s-C〇 | 〇-I80s-CO-180s-C〇 | |||
| Mechanical endurance | Times | 10000 | 10000 | |
