Intelligent Sulfur Hexafluoride (SF₆) Ring Main Unit: Fully Insulated, Highly Reliable, and Intelligent Choice

This product is an advanced medium-voltage power distribution equipment integrating full insulation, high reliability, and intelligent expansion. It is strictly designed and manufactured in accordance with the standardized technical requirements of China State Grid Corporation, dedicated to providing safe and stable solutions for power distribution network systems.

Core Design Philosophy: Fully Insulated and Fully Sealed

The product completely seals all high-voltage live parts inside a stainless steel gas tank filled with SF6 gas, achieving a fully insulated and fully sealed structure. This design completely isolates the switching device from the external environment, with a protection rating up to IP67, effectively resisting harsh conditions such as condensation, dust, and salt fog, fundamentally ensuring long-term operational reliability of the equipment and achieving maintenance-free operation, significantly reducing users' operation and maintenance costs.

Core Advantages and Features

Safety Assurance

Adopts a three-position load switch with reliable interlock functions between closing, opening, and grounding positions, effectively preventing misoperation.

Clear switch position indication, standard equipped with live display function, providing dual safety protection for operators.

Designed with reliable pressure relief channels and passed internal arc fault (internal arcing) type tests, ensuring effective guidance and release of energy in extreme cases, maximizing protection for personnel and equipment safety.

Outstanding Performance

High Reliability: Thanks to the fully sealed structure, anti-arc fault design, and key parameters (such as internal arcing and grounding closing capability) exceeding State Grid standard requirements, ensuring stable operation under complex conditions.

Consistent Quality: Through programmatic design, standardized process control, and modular combination, ensuring every factory product has consistent excellent quality.

Flexible Configuration and Intelligence

Offers multiple schemes including top/side outgoing lines, high-voltage emergency power supply (PT cabinet) interfaces, various secondary modules, and aviation plug interfaces, flexibly adapting to different on-site installation and wiring needs.

Equipped with distribution automation expansion interfaces for easy optional configuration of standardized centralized or distributed DTU remote communication terminals, enabling remote monitoring and operation of the equipment, laying the foundation for intelligent upgrades of the distribution network.

Authoritative Certification and Applications

This product has fully passed the standardization certification of China State Grid Corporation and holds complete certification qualifications. It is an ideal choice for meeting the needs of modern urban distribution network construction and transformation.