| Customization: | Available |
|---|---|
| Breaking Capacity: | High Voltage Circuit Breakers |
| Operation: | Energy-storage Type |
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1.ZW50 outdoor three-phase AC high voltage vacuum circuit breaker
2.It is applicable to the feeder side of substation and the industrial and mining enterprise which need general protection, control and frequent operation of switch.
3.Simple structure, powerful interrupting capability and long service life
ZW50 outdoor three-phase AC high voltage vacuum circuit breaker (hereinafter as "vacuum(circuit)breaker ") is an outdoor distribution unit of rated voltage 40.5 kV and frequency 50 Hz, which is applicable to the feeder side of substation and the industrial and mining enterprise which need general protection, control and frequent operation of switch.
The main body of the circuit breaker features vacuum extinction, simple structure, powerful interrupting capability and long service life. The pole is made of epoxy resin / silicone rubber composite insulator,no oil and sf6 gas, this solid insulated Vacuum Circuit Breaker is designed envirionmentally friendly.
Application Ambient Condition
Ambient temperature: max. + 40ºC, min. -40ºC;
Altitude above sea level: not higher than 2000 m;
Wind pressure: not higher than 700 Pa (equivalent to wind speed 34 m/s)
Ice coating thickness: 10 mm
Air pollution grade: Class IV;
Earthquake intensity: not exceed 8 degree;
No flammable, explosive, corrosive chemicals (such as acid, alkali and dark smoke) and strong vibration on the site
Technical Parameters
| No. | Item | Unit | Value | ||
| 1 | Rated voltage | kV | 40.5 | ||
| 2 | Rated insulation level (Sea level: 1000m) | 1 min power frequency withstand voltage | Dry test | 95 | |
| Wet test (earth outside insulation) | 85 | ||||
| Lightning impulse withstand voltage(peak) 1.2/50μs | 200 | ||||
| 3 | Rated current | A | 1600/2500 | ||
| 4 | Rated frequency | Hz | 50/60 | ||
| 5 | Rated short circuit breaking current | kA | 31.5 | ||
| 6 | Rated operation sequence | O-0.3s-CO-180s-CO-180s-C | |||
| 7 | Rated short circuit breaking current breaking times | times | 20 | ||
| 8 | Rated short circuit closing current(peak) | kA | 80 | ||
| 9 | Rated peak withstand current | 50 | |||
| 10 | Rated short time withstand current | 31.5 | |||
| 11 | Fully breaking time | s | <0.125 | ||
| 12 | Rated short circuit duration | 4 | |||
| 13 | Mechanical life | times | 10000 | ||
| 14 | Rated operating voltage and auxiliary circuit rated voltage | V | 110/220 | ||
| No. | Item | Unit | Value |
| 1 | Contact clearance | mm | 18±1 |
| 2 | Contact overtravel | mm | 6±1 |
| 3 | Opening speed | M/s | 1.6±0.2 |
| 4 | Closing speed | M/s | 0.8±0.2 |
| 5 | Simultaneity of three phase opening and closing | ms | ≤2 |
| 6 | Phase distance | mm | 680±2 |
| 7 | Contact closing bounce time | ms | ≤3 |
| 8 | Each phase conductive circuit resistance | μΩ | ≤60 |
| 9 | Closing time | ms | 25~60 |
| 10 | Opening time | ms | 20~50 |
| 11 | Rated power frequency of energy storage motor | W | 110 |
| 12 | Rated voltage of energy storage motor | V | 220 |
| 13 | Max./Min. Motor voltage | 120%/80% | |
| 14 | Rated closing operating voltage | 220 | |
| 15 | Max./Min. Closing operating voltage | 120%/80% | |
| 16 | Rated opening operating voltage | 220 | |
| 17 | Max./Min. Opening operating voltage | 120%/65% |
| No. | Item | Unit | Value | |
| 1 | Rated operating voltage | Opening tripper | V | AC220 |
| Closing tripper | AC220 | |||
| 2 | Rated resistance | Opening tripper | Ω | 56 |
| Closing tripper | 56 | |||
| 3 | Rated output power frequency | Opening tripper | W | 320 |
| Closing tripper | ||||
| 4 | Energy storage motor power frequency | W | 110 | |
| 5 | Rated voltage of motor energy storage | V | AC220 | |
| 6 | Energy storage time | s | ≤10 | |
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