SF6 Compact Metal Enclosed Switchgear Fully Insulated Three Phase AC Rated Voltage

HRL-12 (HXGN) SF6 fully insulated metal enclosed compact metal switchgear

1. Overview of HRL-12 (HXGN) SF6 fully insulated metal enclosed compact metal switchgear

HRL-12 (HXGN) type inflatable cabinet is a unit type combined power distribution device for indoor installation, suitable for distribution networks with voltage levels of 12kV and below. HRL-12 (HXGN) series products include cable switch cabinet unit (HRL-12C), circuit breaker unit (HRL -12V), fuse load switch combination unit (HRL-12F), bus section unit (HRL-12S), Air insulation measurement unit (HRL-12M), and other different modules, and can be combined in different combinations, the combination forms include: DF, CCF, CCC, CCFF, CCCF, CFFC, DV, CCV, CCCC, CCCV, CCVV, etc.

2. Purpose of HRL-12 (HXGN) SF6 fully insulated metal enclosed compact metal switchgear

HRL-12 (HXGN) type inflatable cabinet is a complete set of power distribution device with three-phase AC rated voltage of 10kV and rated frequency of 50Hz. It is suitable for power distribution systems such as factories, residential quarters, high-rise buildings and mines and ports. The SF6 inflatable ring network cabinet seals high-voltage components such as circuit breakers, disconnectors, load switches, grounding switches, transformers, and bus bars. A metal-enclosed switchgear in a closed shell filled with lower pressure (usually 0.02-0.05MPa) SF6 gas.​​​​

3.Main features of HRL-12 (HXGN) SF6 fully insulated metal enclosed compact metal switchgear

First of all, due to the use of excellent SF6 gas, the insulation performance is greatly improved. The insulation performance of SF6 gas is 2-3 times that of air, and as the voltage level increases, the advantages become more obvious. Because of this advantage, it is easy to design a smaller cabinet size, which is conducive to the development of miniaturization.
All the high-voltage live parts of the SF6 inflatable cabinet are sealed in the stainless steel box and are not affected by external environmental conditions. The box is filled with SF6 gas with a working pressure of 1.4bar, and the protection level is IP67. Therefore, the SF6 inflatable cabinet can be installed in small, humid, sandy and dusty, salty, mine and any harsh environment where air pollution is likely to cause surface pollution, without special protective measures.