A GIS ring damping resistor structure and a method for connecting the same

By employing a ring or U-shaped connection method with multiple resistor strings arranged around the circumference in GIS equipment, the problems of compact, symmetrical, uniform heat dissipation, and scalable arrangement of damping resistor sheets within GIS equipment are solved, achieving efficient resistance values ​​and insulation heat dissipation, and improving the operational reliability and safety of the equipment.

CN122245914APending Publication Date: 2026-06-19XIAN XD SWITCHGEAR ELECTIC CO LTD +1
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
XIAN XD SWITCHGEAR ELECTIC CO LTD
Filing Date
2026-03-17
Publication Date
2026-06-19

AI Technical Summary

Technical Problem

Within the compact internal space of GIS equipment, how can we achieve a compact, symmetrical, uniformly heat-dissipating, and scalable arrangement of damping resistor sheets to meet the requirements of engineering resistance value, electrical connection reliability, and insulation and heat dissipation? Existing triangular prism structures suffer from low space utilization, uneven heat dissipation, and poor scalability.

Method used

Multiple resistor strings are arranged around the circumference and integrated into an overall ring module. Each resistor string consists of an insulating rod, a resistor sheet, and an insulating platform. They are fixed by a flange and the resistor sheets are connected in series to form a ring or U-shaped circuit, ensuring uniform current flow and heat dissipation.

Benefits of technology

It achieves efficient space utilization, uniform heat dissipation, and flexible expansion within a limited space, improves the reliability of electrical connections and insulation and heat dissipation performance, and enhances the operational safety and reliability of GIS equipment.

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Abstract

This invention belongs to the field of GIS equipment technology and discloses a ring-shaped damping resistor structure for GIS and its connection method. This resistor structure integrates multiple resistor strings arranged circumferentially to form a single ring module. Each resistor string consists of an insulating rod, a resistor sheet, and an insulating platform, fixed by a flange, with the resistor sheets connected in series. The ring structure perfectly fits the circular cavity of the GIS, eliminating irregular gaps and maximizing space utilization. The symmetrical layout ensures uniform heat dissipation paths for each resistor sheet, promoting balanced heat distribution. The modular design allows for flexible adjustment of the required resistance value by increasing or decreasing the number of resistor strings, without requiring a complete redesign. This structure effectively overcomes the shortcomings of traditional triangular structures, such as low space utilization, uneven heat dissipation, and poor scalability. It achieves a compact, symmetrical, uniformly heat-dissipating, and easily expandable arrangement of damping resistors, significantly improving the electrical connection reliability and insulation and heat dissipation performance of the equipment.
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