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This product is an outdoor distribution device rated at 22kV, three-phase AC 50Hz, mainly used within the distribution network to switch and close/open the load current, overload current, and short-circuit current of power systems, suitable for protection and control purposes in substations and industrial/mining distribution systems, and especially suited to frequently operated locations on rural grids.
Features:
The structural design fully accounts for adaptability to harsh outdoor environments, offering a relatively high insulation level and mechanical reliability; combined with an automatic-reclosing function, it can quickly restore supply when a transient fault occurs on the line, reducing outage time and improving power quality.
Applications:
Widely used for sectional protection on overhead lines of rural and urban distribution grids, and is an important switching device in distribution automation construction.
| Item | Unit | Parameter |
| Rated Voltage | kV | 22 |
| Rated Frequency | Hz | 50 |
| Rated Current | A | 630/1250/1600 |
| Rated Short-Circuit Breaking Current | kA | 20/25/31.5 |
| Rated Peak Withstand Current (Peak) | kA | 50/63/80 |
| Rated Short-Time Withstand Current / Duration | kA/s | 25/4 |
| Rated Short-Circuit Making Current (Peak) | kA | 50/63/80 |
| Rated Operating Sequence | O - 0.3s - CO - 180s - CO | |
| Mechanical Life | Times | 10000 |
| Rated Current Breaking Operations | Times | 10000 |
| Rated Number of Short-Circuit Breaking Operations | Times | 20 |
| 1min Power Frequency Withstand Voltage: (Wet) Phase to phase, phase to earth / break, (Dry) Phase to phase, phase to earth / break | kV | 50/60, 60/65 |
| Lightning Impulse Withstand Voltage (Peak) Phase to phase, phase to earth / break | kV | 95/125 |
| Auxiliary Circuit 1min Power Frequency Withstand Voltage | V | 2000 |
| Weight | kg | 115 |
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
+86-0577-62716681
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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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