SF6-12 fully sealed gas-insulated switchgear

The fully sealed SF6 switchgear uses modular units that can be combined for different applications. Fixed unit combinations and expandable units provide flexible compact-switchgear arrangements for different substations.

SF6 fully closed inflatable cabinets is a fully sealed system with all electrical components and switches enclosed in stainless steel shells. The entire switch is not affected by external environmental conditions, thus ensuring operational reliability and physical safety, and free of maintenance. Any combination can be fully modular by selecting an extended bus. The extended safe insulation and shielding of the main line ensures high reliability and safety. SF6 fully closed inflatable cabinets can provide an automated solution for TVization at the same time; the concept of smart switches has been developed and the on-site installation and commissioning workload has been minimized.

SF6 fully closed inflatable cabinets are divided into non-extensible and scalable standard configurations. Because of its full- and semi-module combination and its own scalability, it is extremely flexible.

SF6 enforces the GB standard by fully closed inflatable container switches.

The design life under indoor conditions (20°C) exceeds 30 years.

SF6 fully closed inflatable container series SF6 gases are used as acoustic and insulation media.

The switchboard is a fully sealed, fully insulated structure; the main line, switch and electrical components are completely sealed in stainless form. The cavity is filled with 1.4 bar SF6 gases, with a protection level of IP67, and the entire switch is completely unaffected by external environmental conditions, even under extreme conditions, such as brief water leaching, to ensure that the switch works properly and the product is exempt from maintenance for life.

The switchgear incorporates comprehensive five-function interlocking to prevent personnel hazards and equipment malfunctions caused by incorrect operation.

All switches have reliable release channels that guarantee the safety of operators even in extreme cases.

Switch cabinets are divided into fixed and scalable modules; they are usually either a front-line entry and exit line or a side-line or side-extension by different installation locations. The cabinet size is easy to install and can be adapted to areas of small space and poor environmental conditions. Switchboards can be equipped with electric, remote and detection devices according to the different needs of the user.

1. Main circuit programme numbering, use, single-line system charting, organization charting and flat layout of the distribution room, etc.

2. Accompanying circuit wiring, endline organization.

3. The type, specification, quantity of electrical components within the switch equipment.

4. Requirements for the control, measurement and protection of switches and other locking and automatic devices.

5. If a busbar bridge connection is required between switchgear units or for an incoming panel, specify the busbar bridge's rated current-carrying capacity, span, height above ground and any other specific requirements.

6. Where annexes and spare parts are required, categories and quantities should be presented.

7. Switching equipment is used under special environmental conditions and shall be specified at the time of ordering.

Note: (1) Depending on the current rating of the smelter

Each module of the SF6 switchboard has the following configuration

1. Capacitive voltage indicator for an incoming tube

2. Installation of a pressure meter for each gas chamber to monitor SF6 density

3. Hanging ears

4. Operating handle

Selection

1. Electric operators

2. Cable short-circuit and earth-fault indicator

3. Cable instrument transformers and meters

4. Remote monitoring and exposure