| Customization: | Available |
|---|---|
| Front Voltage: | 12kv |
| Transport Package: | Fumigation Wooden Box |
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ZW32-12FG Outdoor high voltage vacuum circuit breaker/intelligent type
The ZW32-12FG series outdoor high voltage vacuum circuit breaker is designed for a rated voltage of 12kV and three-phase AC 50Hz outdoor power distribution systems. This circuit breaker is primarily used for breaking and closing load current, overload current, and short-circuit current in power lines. It features overload and short-circuit protection and meets the requirements of standards such as GB1984-2003, DL/T402-2007, and IEC60056. It is widely used in substations, industrial, and mining enterprise power distribution systems, especially in scenarios requiring frequent operation, and supports remote control and monitoring functions.
Application Scope:
Suitable for 12kV outdoor power systems, primarily for the protection and control of power equipment in substations and industrial and mining enterprises, especially in situations requiring frequent operations and multiple short-circuit breaking.
Technical Requirements:
1.The product complies with GB1984-2003, DL/T402-2007, and IEC60056 technical standards.
2.Environmental requirements:
•Pollution level: Grade II, suitable for environments with dust, smoke, corrosive gases, steam, or salt spray in the air.
•Wind speed should not exceed 34m/s (equivalent to 700Pa on a cylindrical surface).
Precautions:
1.The circuit breaker should be used in environments that meet the conditions mentioned above. For special environmental requirements, please contact us in advance to make necessary adjustments.
2.During installation and operation, strict adherence to operating procedures is required to ensure the safety of both the equipment and personnel.
| Serial number | project | unit | data | |||
| 1 | Rated voltage | kV | 12 | |||
| 2 | Rated current | A | 630 | 1250 | ||
| 3 | Rated frequency | Hz | 50 | |||
| 4 | Rated insulation level | 1 min power frequency withstand voltage | Dry test | kA | 42/48 (Fracture) | |
| Wet test | 34 | |||||
| secondary loop to ground | 2 | |||||
| Lightning impulse withstand voltage (peak) | 75 /85 (Fracture) | |||||
| 5 | Rated Short Circuit Closing Current (Peak) | kA | 50 | 63 | ||
| 6 | Rated short-time tolerance current | kA | 20 | 25 | ||
| 7 | Rated peak tolerance current | kA | 50 | 63 | ||
| 8 | Rated short circuit breaking current breaking number | cycles | 30 | |||
| 9 | Rated short circuit duration | s | 4 | |||
| 10 | Rated operating voltage and auxiliary circuit rated voltage | V | DC220,AC220,AC/DC220 | |||
| 11 | Rated operating sequence | Score-0.3s-combined score -180s-Combined Score | ||||
| 12 | Over current trip rated current | A | 5 | |||
| 13 | Mechanical life | cycles | 10000 | |||
| 14 | Allowable wea acoumulnon tidness of stne and dynamic contact | mm | 3 | |||
| 15 | Rated current ofovercurrent release | A | 5 | |||
| 16 | Current transformer current ratio | 200/5 400/5 600/5 | ||||
| 17 | Contact pitch | mm | 9±1 | |||
| 18 | Contact hyperrange | mm | 2±0.5 | |||
| 19 | Average breakout speed | m/s | 1.2±0.3 | |||
| 20 | Average closing speed | m/s | 0.6±0.2 | |||
| 21 | Opening time | ms | 20~40 | |||
| 22 | Closing time | ms | 30~60 | |||
| 23 | Closing bounce time | ms | ≤2 | |||
| 24 | Tripolar and Opening Dissynchronism | ≤2 | ||||
| 25 | Three-phase circuit dc resistance | μΩ | ≤ 80 (with isolation≤150) | |||
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