Typical primary plan

Rated Parameters

Product Overview

QLG series ring main unit is a SF6  gas insulated metal enclosed switchgear independently developed and produced by our company. The equipment uses SF6  gas as insulation and breaking medium, and the load switch, vacuum circuit breaker and live busbar are all sealed in a closed stainless steel container filled with a certain pressure. The external American standard / European standard bushing is connected with the incoming and outgoing cable through the cable joint to form a fully insulated and fully closed structure. This effectively prevents flooding and withstands contamination, making it suitable for various harsh environments. The product is widely used in 24kV ring network or terminal power supply system.

Product Features

Modular and expandable

The use of expansion modules in coordination allows for up to five modules with the same gas tank. Beyond that, further expansion is achieved through busbar expansion.

Maintenance Free

SF6 gas integrated structure, with moving and static contacts, arc extinguishing chamber, busbar sealed in the same gas tank. It is designed for a maintenance-free life of 30 years.

Reliable Mechanical Interlock

It has a variety of reliable mechanical interlocks, and there are analog signs on the cabinet panel to fully ensure the safety of operation.

Automatic and Intelligent

Cooperate with DTU to realize automatic and intelligent control.