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Overview:
ZW20-12F outdoor high-voltage intelligent demarcation vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12kV and three-phase AC50Hz. It is mainly used to break and close the load current,overload current and short-circuit current of the power system.
It is suitable for protection and control of substations, industrial and mining enterprises and urban and rural distribution networks, especially for places with frequent operations and urban network automation distribution networks. This product is matched with the controller to meet the requirements of the distribution automation system and can reliably and effectively complete the traditional recloser function. It adopts a mature box-type sealing structure, filled with SF6 gas inside, with good sealing performance, so that it is not affected by the external environment and is a maintenance-free product. Its spring operating mechanism adopts a direct-acting chain maindrive and a multi-stage tripping system, with high action reliability, and is an excellent product for pole-mounted circuit breakers.
Working Conditions:
- Altitude not exceeding 3000m;
- Ambient air temperature: -40℃ ~+40℃; Daily temperature difference: daily temperature change 25℃;
- Wind speed not exceeding 35m/s;
- No flammable, explosive, strong chemical corrosive substances (such as various acids, alkalis or thick smoke, etc.) or strong vibration.
Main Technical Parameters of Circuit Breaker
| Project | Parameter |
| Rated voltage | 12kv |
| Rated frequency | 50Hz |
| Rated current | 630A、1000A、1250A |
| Rated short-circuit breaking current | 20kA、25kA |
| Rated peak withstand current (peak) | 50kA, 63kA |
| Rated short-time withstand current (4s) | 20kA、25kA |
| Rated short-circuit making current | 50kA, 63kA |
| Mechanical life | 10000 Times |
| Rated current breaking times | 10000 Times |
| Rated short circuit current interruption times | 30 Times |
Main Mechanical Parameters of Circuit Breaker:
| Project | Parameter |
| Power frequency withstand voltage (1min): interphase, ground / break | 42kv / 48kv |
| Lightning impact withstand voltage (peak) interphase, ground / break | 75kv / 85kv |
| Secondary circuit of 1min, power frequency withstand voltage | 2kv |
| Net weight | 9±0.5mm |
| Contact opening distance | 3±0.5mm |
| Contact overtravel | 1.2±0.2 m/s |
| Opening speed | 0.6±0.2 m/s |
| Closing speed | ≤ 2 ms |
| Contact closing bounce time | 135±1.5mm |
| Alternative center distance | 240±2mm |
| External live air insulation distance | 3.8cm/kv |
| External creepage distance | ≤ 2 ms |
| Three-phase disconnection in different phases | ≤ 150(with isolation ≤ 200) |
| Conductive circuit resistance of each phase | ≤ 45 ms |
| Closing time | ≤ 45 ms |
| Opening time | ≥ 190 mm |
| Isolation break distance | 3.8cm/kv |
| The contact knife just closed position is skewed | ≤ 2 mm |
| Manual opening and closing operating torque | ≤ 150 N.m |
| Energy storage motor rated power | 40 V |
| Rated voltage of energy storage motor | AC 220V |
| Rated closing operating voltage | AC 220V |
| Maximum / minimum closing operating voltage | AC264/143 |
| Rated opening operating voltage | AC220 |
| Maximum / minimum tripping operating voltage | AC264/143 |
| Maximum/minimum motor voltage | AC242/187 |
| SF6 gas rated pressure (gauge pressure) | 0 |
Keywords
ZW20-12F Outdoor high voltage intelligent boundary vacuum circuit breaker
隐藏域元素占位
Subcategory
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- 产品描述
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- Commodity name: ZW20-12F Outdoor high voltage intelligent boundary vacuum circuit breaker
ZW20-12F outdoor high-voltage intelligent demarcation vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12kV and three-phase AC50Hz.
Overview:
ZW20-12F outdoor high-voltage intelligent demarcation vacuum circuit breaker is an outdoor high-voltage switchgear with a rated voltage of 12kV and three-phase AC50Hz. It is mainly used to break and close the load current,overload current and short-circuit current of the power system.
It is suitable for protection and control of substations, industrial and mining enterprises and urban and rural distribution networks, especially for places with frequent operations and urban network automation distribution networks. This product is matched with the controller to meet the requirements of the distribution automation system and can reliably and effectively complete the traditional recloser function. It adopts a mature box-type sealing structure, filled with SF6 gas inside, with good sealing performance, so that it is not affected by the external environment and is a maintenance-free product. Its spring operating mechanism adopts a direct-acting chain maindrive and a multi-stage tripping system, with high action reliability, and is an excellent product for pole-mounted circuit breakers.Working Conditions:
- Altitude not exceeding 3000m;
- Ambient air temperature: -40℃ ~+40℃; Daily temperature difference: daily temperature change 25℃;
- Wind speed not exceeding 35m/s;
- No flammable, explosive, strong chemical corrosive substances (such as various acids, alkalis or thick smoke, etc.) or strong vibration.
Main Technical Parameters of Circuit Breaker
Project Parameter Rated voltage 12kv Rated frequency 50Hz Rated current 630A、1000A、1250A Rated short-circuit breaking current 20kA、25kA Rated peak withstand current (peak) 50kA, 63kA Rated short-time withstand current (4s) 20kA、25kA Rated short-circuit making current 50kA, 63kA Mechanical life 10000 Times Rated current breaking times 10000 Times Rated short circuit current interruption times 30 Times Main Mechanical Parameters of Circuit Breaker:
Project Parameter Power frequency withstand voltage (1min): interphase, ground / break 42kv / 48kv Lightning impact withstand voltage (peak) interphase, ground / break 75kv / 85kv Secondary circuit of 1min, power frequency withstand voltage 2kv Net weight 9±0.5mm Contact opening distance 3±0.5mm Contact overtravel 1.2±0.2 m/s Opening speed 0.6±0.2 m/s Closing speed ≤ 2 ms Contact closing bounce time 135±1.5mm Alternative center distance 240±2mm External live air insulation distance 3.8cm/kv External creepage distance ≤ 2 ms Three-phase disconnection in different phases ≤ 150(with isolation ≤ 200) Conductive circuit resistance of each phase ≤ 45 ms Closing time ≤ 45 ms Opening time ≥ 190 mm Isolation break distance 3.8cm/kv The contact knife just closed position is skewed ≤ 2 mm Manual opening and closing operating torque ≤ 150 N.m Energy storage motor rated power 40 V Rated voltage of energy storage motor AC 220V Rated closing operating voltage AC 220V Maximum / minimum closing operating voltage AC264/143 Rated opening operating voltage AC220 Maximum / minimum tripping operating voltage AC264/143 Maximum/minimum motor voltage AC242/187 SF6 gas rated pressure (gauge pressure) 0
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