Features of Solid Ring Main Unit

Solid insulation ring network cabinet, as the name implies, is a ring network cabinet that uses solid insulating material as the main insulating medium. The dielectric encapsulation is one or several modules with a certain function, which can be combined and expanded again with full insulation and full sealing. The accessible surface is coated with a conductive or semi-conductive shielding layer and can be directly and firmly grounded. Ring main unit.

Its structural design is based on the requirements of meeting and adapting to the modern and strong smart grid, and has the main characteristics of full insulation, full sealing, modularization and miniaturization. Some of the main circuits are designed with single-phase modules. On the one hand, the occurrence of phase-to-phase short-circuit faults can be completely avoided during operation, and on the other hand, the maintenance cost can be greatly improved while the repair efficiency is greatly improved.

From the principle and structure, the SF6 gas and the corresponding air box parts are completely eliminated, which completely solves the accident caused by the explosion caused by the pressure rise when the internal switch of the gas box is short-circuited, and completely avoids the decomposition and leakage of SF6 gas. The emission of gas has truly become an environment-friendly switch commodity demanded by society.

And the solid insulation ring network cabinet has better resistance to harsh environments than the SF6 ring network cabinet. At the same time, the solid insulation ring network cabinet also has the online inspection function of insulation, temperature rise, mechanical properties, etc., to meet the requirements of domestic strong smart grid.