Indoor High Voltage AC Electrical Earth Switch

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 1.Overview

The indoor high-voltage AC electrical earth switch is an advanced high-voltage electrical device specifically designed for 40.5KV indoor power systems and compatible with three-phase AC 50Hz power supply configurations. It is a core auxiliary device in power systems for ensuring the safety of equipment maintenance and protecting against electrical faults. As a high-end product, this earth switch integrates advanced structural design and high-quality material application, featuring short-circuit closing capability to safeguard other electrical components within the switchgear from damage. It also boasts compact structure, convenient operation, and long mechanical life, enabling stable operation in complex indoor high-voltage environments. It meets the long-term, safe, and efficient operation and maintenance requirements of power systems and is widely used in various indoor high-voltage distribution scenarios, serving as an indispensable safety protection device during high-voltage electrical equipment maintenance.

II. Product Core Features

Compliance with standards, safe and reliable: Strictly in accordance with the GB1985-2004 national standard and the IEC129 international standard. Passed rigorous type tests to ensure product performance meets the requirements, effectively avoiding electrical safety risks. Provides compliance guarantee for power system operation. Its core indicators such as insulation performance and short-circuit tolerance all meet the requirements of both international and domestic standards. The operational stability is far superior to that of basic products.

Accurate fit, wide application range: Specifically designed for the 40.5KV indoor power system, it is compatible with a three-phase AC 50Hz frequency. It can be used in conjunction with KYN61-40.5 and other intermediate-type switch cabinets as well as various ring-main units. It has strong compatibility and can flexibly adapt to the installation and operation requirements of different indoor high-voltage distribution scenarios. It can be put into use without additional modifications.

Advanced structure, convenient operation: Adopting an optimized mechanical structure design, it has a small operating torque and flexible movements, enabling rapid opening and closing operations. The overall structure is compact, occupying a small space, and is suitable for installation in indoor confined spaces. It also has excellent corrosion resistance and anti-aging properties. The mechanical lifespan can exceed 3,000 times, reducing the later operation and maintenance costs and minimizing the frequency of equipment failures.

Multi-layer protection, safety enhancement: Equipped with a comprehensive anti-misoperation mechanism. It can be protected by both mechanical interlock and electromagnetic lock, preventing dangerous situations such as energized closing and improper operation. It has excellent insulation performance and short-circuit tolerance, capable of withstanding the rated short-time withstand current and peak withstand current. In the event of lightning or system operation overvoltage, it can quickly establish a grounding discharge path to protect the insulation of the equipment from damage.

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