What are the structural characteristics of the inflatable cabinet?
The gas-insulated switchgear has many advantages, such as being unaffected by external environmental factors like condensation, pollution, small animals, and chemicals. Another advantage is that using compressed gas insulation materials is conducive to miniaturization. The gas insulation has good oil-free switching performance, especially for maintenance-free or low-maintenance vacuum switches, which greatly reduces the workload of maintenance and overhauls. Let's take a look at the structural features of gas-insulated switchgear.
1. Fixed structure technology
High-quality gas-insulated switchgear uses maintenance-free vacuum circuit breaker technology and replaces the limited number of installed manual oil circuit breakers with fixed vacuum circuit breakers. The isolation switch and grounding switch are combined into one switch to replace individual switches, significantly reducing space and interlocking work. Current transformers use toroidal core current transformers instead of ordinary cast resin insulated current transformers that bear high electrical loads. SF6 gas insulation is used, eliminating the need for maintenance and repair of each switch component.
2. Cable connections use a fully insulated and shockproof insertion structure instead of ordinary cable joints.
The key process of gas insulation involves welding the shell of the gas-insulated switchgear into a completely airtight structure, thereby eliminating the influence of environmental factors. Laser welding technology is used to prevent the escape of SF6 insulating gas and the intrusion of moisture. The gas tightness is usually checked by a leak detection device integrated into each shell. The required operating power is transmitted from the outside of the gas-insulated switchgear to the inside through a corrugated pipe. The electrical components in the gas-insulated switchgear are connected to cables or busbars through welded sleeves.
In summary, the structural features of gas-insulated switchgear include fixed structure technology, and cable connections use a fully insulated and shockproof insertion structure to replace ordinary cable joints. The working readiness status of the gas-insulated switchgear is displayed through magnetic coupling, without the need for contact through a measuring box installed in the cabinet.
Beijing Qingchang Electric Power Technology Co., Ltd. - Experts in ring network cabinet manufacturing.
Inflatable cabinet, SF6 gas insulated ring network cabinet, ring network cabinet, ring network cabinet manufacturer
Links: