Product Overview
BKXGN-12-SIS3 Solid Insulated Full-Enclosed Medium Voltage Switchgear; Comprehensive solutions include circuit breakers for line protection, transformer protection, load control, fuse combination apparatus, PT power supply, bus coupler upgrading, transformer usage, and more, providing a series of solutions for grid upgrading and transformation as well as for power distribution to users. These solutions are configured to meet the requirements of an intelligent power grid with intelligent terminal base station combinations. This product can serve as a ring main distribution equipment for the power system and also as distribution equipment for industrial and mining enterprises and urban construction, featuring multi-functional versatility.
Solid insulated fully enclosed switchgear; utilizing solid insulation materials as the primary insulation medium, encapsulates and packages the main conducting circuits, which include vacuum interrupters, conductive connections, disconnectors, earthing switches, main busbars, and branch busbars, either singly or in combination, into one or several functional modules with full insulation and sealing properties, capable of recombination or expansion. The surfaces of the modules accessible to humans are coated with conductive or semi-conductive shielding layers and are directly and reliably grounded, forming a touch-safe ring main cabinet. The main circuit module surfaces are equipped with earthing networks, coated with conductive shielding layers, and directly and reliably grounded, ensuring no risk during invalid maintenance and enhancing user safety during operation and maintenance.
Three-position isolator switch – No false break, in compliance with the design requirements of the GB1985-2004 standard for isolator switches, utilizing a special process structure.
The circuit breaker's pole design features a double shielding technology.
Circuit breakers, disconnect switches, and busbars are all equipped with online monitoring technology. Insulating sealing new material - utilizes a novel alloy process with a mixture of epoxy resin, rubber particles, spherical silicon stone particles, strip-shaped silicon particles, and silicon micro-powder, all enclosed within a shielding mesh.
Three-position isolating switch with a sealed insulated housing can be pressurized with dry air up to 0.04 MPa, preventing moisture intrusion and condensation inside. It is equipped with a pressure gauge for online monitoring of internal pressure to prevent leakage and subsequent condensation due to humid air infiltration.
Medium-voltage systems are protected from the effects of harsh environments (contamination, corrosive gases, condensation, humidity, dust, etc.). This significantly reduces the likelihood of arc formation, offers a longer expected lifespan, and provides reliable solid insulation technology under various conditions—without SF6 gas insulation, without greenhouse gases, and environmentally friendly.
Modular design - circuit breakers, three-position disconnectors with grounding devices, compact in size and structure, easy for operation and maintenance.
Series Solution One offers versatile combination plans, featuring two structural options: upper and lower isolation, catering to a variety of user solutions.
BKXGN-12 Fully Enclosed and Insulated Solid Ring Main Unit
