What is ring main unit?

The Ring Main Unit is a set of transmission and distribution electrical equipment (high-voltage switchgear) installed in a metal or non-metal insulated cabinet or made into an assembling interval type ring network power supply unit. Its core part uses load switches and The fuse has the advantages of simple structure, small size, low price, can improve power supply parameters and performance, and power supply safety. It is widely used in power stations and box-type substations in load centers such as urban residential communities, high-rise buildings, large public buildings, factories and enterprises, etc.