HFL36-12/630-20II Type SF6 Load SwitchDetailed product description：

The HFL36-12D SF6 load switch is a medium voltage switchgear developed independently according to the relevant standards of China's power system. Its various performance indicators fully comply with IEC420694129 and the national standard GB3804-901985-8911022-89, and it is the main switching component of the ring cabinet.
The HFL36-12D SF6 three position load switch is a multifunctional medium voltage switchgear that integrates switching, opening, and grounding. It is filled with 0.05MPa SF6 gas in a fully sealed, reinforced epoxy resin shell, and achieves the above three functions with minimal components, thus ensuring product quality and improving reliability. The equipment is maintenance free and can operate safely for more than 20 years under normal conditions.

The HFL36-12/630-20II SF6 load switch is operated by a manual or electric operating mechanism independent of the switch to close and open the main circuit. The opening and closing speed of the switch is determined by the spring and is independent of the manual speed. After installing electric mechanisms and microcomputer measurement and control devices, remote sensing, remote signaling, and remote control can be achieved, providing necessary conditions for power grid automation.

characteristic
I have over five years of experience in safe operation in China.
Excellent technical performance, long electrical lifespan, and maintenance free.
Small size, light weight, easy maintenance, convenient and safe operation.
The collection switch, disconnection switch, and grounding switch are integrated and packaged in an epoxy resin shell filled with SF6 gas. The three positions are interlocked, with a compact structure and high safety and reliability.

Arc extinguishing principle of load switch
SF6 gas has excellent arc extinguishing performance. In order to quickly extinguish the arc, the switch generates an arc as soon as the moving and stationary contacts separate during the current interruption process. At this time, due to the magnetic field of the permanent magnet, the arc is driven to move rapidly, causing it to elongate and continuously combine with SF6 gas, which is quickly released and cooled. It is extinguished at zero current crossing, and the double break distance has insulation level that isolates the break. The permanent magnet rotary arc principle has low operating power, strong arc extinguishing ability, light contact burns, and extends electrical life.

meet the standard
The switch device meets the following standards:
1 IEC420694129
2 GB3804-901985-8911022-89