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This product is an indoor high-voltage earthing switch manufactured using advanced technology, with an internationally advanced level. Its structural form is of the assembled type, and its performance complies with the relevant provisions of the national standard 'AC High-Voltage Disconnectors and Earthing Switches', suitable for use in indoor 3.6-12kV three-phase AC 50(60)Hz power systems.
Features:
It has short-circuit making capability, able to effectively protect other electrical equipment within the switchgear from damage; the assembled structure is flexible and convenient to install, with reliable contact, excellent insulation performance, and stable, safe operation.
Applications:
Can be used together with various types of high-voltage switchgear as an earthing-protection device during maintenance of high-voltage electrical equipment, widely used in substations, distribution rooms, and various industrial/mining enterprises' distribution systems, and is an important switching component for safeguarding the safety of maintenance personnel and equipment.
| Item | Unit | Parameter | ||
| Rated Voltage | kV | 12 | ||
| Rated Short-Time Withstand Current (Thermal Withstand) | kA | 31.5 | ||
| Rated Short-Circuit Duration | s | 4 | ||
| Rated Short-Circuit Making Current | kA | 80 | ||
| Rated Peak Withstand Current (Dynamic Withstand) | kA | 80 | ||
| Rated Insulation Level | Rated Short-Time Power Frequency Withstand Voltage | kV | Phase to earth and phase to phase | 42 |
| Rated Lightning Impulse Withstand Voltage | kV | 75 | ||
| Mechanical Life | Times | 3000 | ||
| Product Model | E | F | G | H | D | C |
| JN15-12/31.5-275 | 275 | 75 | 185 | 810 | 646.5 | 96 |
| JN15-12/31.5-250 | 250 | 75 | 160 | 735 | 596.5 | 96 |
| JN15-12/31.5-230 | 230 | 75 | 160 | 695 | 556.5 | 96 |
| JN15-12/31.5-220 | 220 | 75 | 160 | 675 | 536.5 | |
| JN15-12/31.5-210 | 210 | 75 | 160 | 655 | 516 | |
| JN15-12/31.5-200 | 200 | 75 | 160 | 635 | 496.5 | |
| JN15-12/31.5-180 | 180 | 75 | 160 | 595 | 456.5 | |
| JN15-12/31.5-165 | 165 | 75 | 160 | 565 | 426.5 | |
| JN15-12/31.5-150 | 150 | 75 | 140 | 515 | 396.5 |
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
+86-15867777538
Building 5, No. 88, Zhandong Road, Dianhou Industrial Zone, Liushi Town, Yueqing City, Wenzhou, Zhejiang Province, China
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