10KV sulfur hexafluoride switch cabinet

By using copper-tungsten alloy spiral contacts, copper wire inlet rods, heat sinks and pressure relief devices in the 10KV sulfur hexafluoride switch cabinet, the problems of low heat dissipation efficiency under large currents and untimely detection of gas leakage are solved, efficient heat dissipation and stable operation of the equipment are achieved, and the reliability and safety of the equipment are improved.

CN120473829APending Publication Date: 2025-08-12BEIJING SOJO ELECTRIC CO LTD
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Patent Information

Application Number
CN202510547625.8
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-04-28
Publication Date
2025-08-12

AI Technical Summary

Technical Problem

The existing 10KV sulfur hexafluoride switch cabinet has low heat dissipation efficiency under high current, resulting in excessive temperature, affecting equipment performance and safety, poor contact stability, and untimely detection of gas leakage, lack of gas replenishment devices, affecting the stability of insulation and arc extinguishing performance.

Method used

It adopts spiral contacts of copper-tungsten alloy, copper wire inlet rods, heat sinks and pressure relief devices, combined with the insulation and heat dissipation properties of sulfur hexafluoride gas, and achieves efficient heat dissipation through gas convection and heat conduction, and promptly relieves pressure at high pressure to prevent equipment from overheating.

Benefits of technology

It improves the stability and heat dissipation efficiency of the contacts, reduces the equipment temperature, prevents safety accidents, ensures that the equipment maintains normal temperature during high current operation, and enhances the reliability and safety of the equipment.

✦ Generated by Eureka AI based on patent content.
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Abstract

The invention discloses a 10KV sulfur hexafluoride switch cabinet which comprises a cabinet body, a gas box is arranged in the cabinet body, a mechanism chamber is arranged on the gas box, an electric control chamber is arranged on the mechanism chamber, an operating mechanism is arranged in the mechanism chamber, a three-phase high-voltage switch assembly is arranged in the gas box, and the three-phase high-voltage switch assembly is connected with the operating mechanism. A wire inlet sleeve and a wire outlet sleeve which are matched with each phase of high-voltage switch assembly are arranged on the gas box, the wire inlet sleeve is arranged on the gas box in an inverted mode, a first cylindrical contact is fixedly arranged in the wire inlet sleeve in a sleeved mode, copper-tungsten alloy of a spiral structure is embedded in the inner circumferential wall of the first cylindrical contact, a copper wire inlet rod is vertically inserted in the first cylindrical contact, and a wire outlet rod is arranged on the wire inlet sleeve. A heat dissipation box is arranged at the upper end of the gas box, a pressure relief device is arranged at the upper end of the heat dissipation box, the heat dissipation box and the gas box are internally communicated to form a closed cavity, the closed cavity is filled with sulfur hexafluoride gas, an inflation and measurement integrated pressure gauge is mounted on the gas box, and heat dissipation fins are paved on the outer surfaces of the gas box and the heat dissipation box. The heating value can be reduced, efficient heat dissipation is achieved, and the reliability of the switch cabinet is improved.
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