The Eggnog (SYGT) - C-12/630-20 solid insulated ring main unit is a ring main unit that uses solid insulation materials as the main insulation medium. Vacuum arc extinguishing chambers and their conductive connections, isolating switches, grounding switches, main bursar, branch bursar, and other main electrical circuits are individually or combined and encapsulated with solid insulating media to form one or several modules with certain functions, which can be combined or expanded again and have full insulation and sealing performance. The surface of the modules that can be touched by humans is coated with conductive or semi conductive shielding layers and can be directly connected to grounded ring main units.

Compared with gas insulated ring main units, it has its own advantages:

1)No gas leakage or greenhouse effect risk, good environmental performance, maintenance free;

2)The fully sealed insulation structure of epoxy resin integral casting has reliable insulation performance and strong environmental adaptability;

3)Modular design, small size, flexible product, conducive to on-site assembly; For remote areas with poor road traffic conditions, it is possible to transport them separately and then assemble them, making transportation and installation methods more diverse