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This product is an outdoor distribution device rated at 11kV, three-phase AC 50Hz, mainly used to switch and close/open the load current, overload current, and short-circuit current within power systems, suitable for protection and control purposes in substations and industrial/mining distribution systems, and also for frequently operated locations on rural grids. It can also serve as a sectionalizing switch on the grid; when fitted with a controller, it enables distribution automation.
Features:
Can be used as a sectionalizing switch on the grid; when fitted with a controller, it enables distribution automation, with fault-identification and automatic-reclosing functions that can quickly isolate faulted sections and restore supply to non-faulted sections, improving the distribution network's self-healing capability and supply reliability.
Applications:
Widely used for sectional protection on overhead lines and distribution zones of urban and rural grids, and is one of the important switching devices for realizing distribution automation upgrades.
| Item | Unit | Parameter |
| Rated Voltage | kV | 11 |
| Rated Frequency | Hz | 50 |
| Rated Current | A | 630、1250 |
| Rated Short-Circuit Breaking Current | kA | 16、20、25、31.5 |
| Rated Peak Withstand Current (Peak) | kA | 50 |
| Rated Short-Time Withstand Current | kA | 16、20、25、31.5 |
| Rated Short-Circuit Making Current (Peak) | kA | 50 |
| Mechanical Life | Times | 10000 |
| Rated Number of Short-Circuit Breaking Operations | Times | 30 |
| Rated Operating Sequence | O - 0.3s - CO - 180s - CO | |
| Power Frequency Withstand Voltage (1min): (Wet) (Dry) Phase to phase, phase to earth / Break | kV | 34/42/48 |
| Lightning Impulse Withstand Voltage (Peak) Phase to phase, phase to earth / Break | kV | 75/85 |
| Auxiliary Circuit 1min Power Frequency Withstand Voltage | kV | 2 |
Zhejiang Yingchuang Electric Co., Ltd. was established in March 2018 and is a qualified approved supplier for State Grid and China Southern Power Grid. We specialize in the R&D and manufacturing of high-voltage electrical equipment, including primary-and-secondary integrated pole-mounted circuit breakers, indoor/outdoor vacuum circuit breakers, disconnecting switches, ring main units, and complete switchgear assemblies. Guided by "craftsmanship quality and sincere service," we offer full OEM/ODM customization across our entire product range. In 2024, we were recognized as a Provincial Innovative SME and a National High-Tech Enterprise.
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1948056561@qq.com
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Building 5, No. 88, Zhandong Road, Dianhou Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, China
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