| Breaking Capacity: | High Voltage Circuit Breakers |
|---|---|
| Operation: | Electric Type |
| Speed: | High-Speed Circuit Breaker |
| Arc-extinguishing Medium: | Vacuum |
| Installation: | Fixed |
| Structure: | ACB |
| Samples: |
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| Customization: |
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Indoor mounted high voltage vacuum circuit breaker
Description:
*VS1-12 indoor mounted high voltage vacuum circuit breaker, suitable for rated voltage 12 kV, frequency 50Hz three-phase power system
*As the protection and control of electrical appliances, because of the special advantages of vacuum circuit breaker
*Especially suitable for the need of rated current frequent operation, or many times break short circuit current places
*VS1-12 indoor mounted high voltage vacuum circuit breaker is installed in a fixed type, mainly used in fixed switchgear
*The circuit breaker can be used alone, but also for ring network power supply, box type transformer or various non-standard power supply system
| serial number | project | units | data | |||
| 1 | The rated voltage | kV | 12 | |||
| 2 | Rated frequency | Hz | 50 | |||
| 3 | Rated current | A | 630~1250 | 1250 | 1250 | |
| 4 | Rated short circuit breaking current | kA | 20 | 25 | 31.5 | |
| 5 | Rated short circuit closing current | kA | 50 | 63 | 80 | |
| 6 | Rated peak tolerable current | kA | 50 | 63 | 80 | |
| 7 | 4S rated short circuit resistance current | kA | 20 | 25 | 31.5 | |
| 8 | Rated insulation level | Power frequency withstand voltage (before and after rated break) | kA | 42( fracture48) |
||
| Impact withstand voltage (before and after rated break) | kA | 75( fracture85) |
||||
| 9 | Rated sequence of operation | points-0.3s-us points-180s-us points | ||||
| 10 | Mechanical life | next |
10000 | |||
| 11 | Rated short circuit breaking current breaking times | next |
50 | |||
| 12 | Operating Mechanism Rated Closing Voltage (DC) | V | 110,220 | |||
| 13 | Rated tripping voltage of operating mechanism (DC) | V | 110,200 | |||
| 14 | From contact | mm | 11±1 | |||
| 15 | Overstroke (compression length of contact spring) | mm | 3.5±0.5 | |||
| 16 | Three - phase points, closing bounce time | ms | ≤2 | |||
| 17 | Contact closing bounce time | ms | ≤2 | |||
| 18 | Average brake speed | m/s | 1.1±0.2 | |||
| 19 | Average closing speed | m/s | 0.6±0.2 | |||
| 20 | Break-brake time | At the highest operating voltage | S | ≤0.05 | ||
| At the lowest operating voltage | S | ≤0.08 | ||||
| 21 | Closing time | S | 0.1 | 50 | ||
| 22 | Main loop resistance of each phase | μΩ | 60 | |||
| 23 | Allowable wear cumulative thickness of dynamic and static contacts | mm | 3 | |||
Zhejiang ZheGui Electric Co., Ltd established in 2013. We are located in Zhejiang with convenient transportation access and developed electrical market. We are group of private enterprises that hold the production license issued by the former ministry of energy and ministry mechanical and electrical engineering.
The company has nearly 60 million fixed assets and more than 60 employees, covering 23133 square meters. We are specialized in R&D production of complete swtichgear of high and low voltage equipment such as prefabricated substation, distribution cabinet/box, drawer cabinet, ring network cabinet, inflatable cabinet, etc.
We owns three CNC bending machine, CNC shearing machine, CNC laser cutting machine and a series of advanced production equipment to further optimized the product structure and improve the efficiency of production. After nearly 7 years of development, it has passed ISO 9001-2000 quality system certification. All items produced by our own factory, so our advantages are: reliable quality and reasonable price. Gather world's energy to delight your business. Its honorable for Zhegui to share your progress, brilliance and success!
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