HXGT****0.5type SF6 Ring Main Unit(bellow short for Ring Main
Unit), is *0Hz AC three phase indoor HV distribution equipment.
Load switchgear, earth contact and busbar for circuit are sealed in
metal enclosure. It is a composite apparatus which adopt spring
operation device and use SF6 as distinguished arc and insulating
medium. It is suitable for *0.5 kV power supply and ring power
supply and double radiated power supply, which can change the
previous ways of one-way radiated power supply. When circuit broke
out fault, loss current for transformer circuit can recover in
time.