The Difference Between An Inflatable Cabinet And An Air Cabinet

Gas filled cabinet and air cabinet are two common high-voltage switchgears, which have significant differences in insulation medium, structural design, and applicable scenarios. The following are the main differences between the two:

1. Insulation medium

Gas cabinet: SF6, N2 and other gases or their composite gases are used as insulation medium, with strong insulation performance, small electrical gap, and compact equipment size.

Air cabinet: With air as the insulation medium, the insulation performance is relatively weak, the electrical gap is large, and the equipment size is large.

2. Structural design

Gas cabinet: The main switch, circuit breaker and connecting parts are sealed in a gas box filled with insulating gas, and the external connection adopts solid insulation, which has a compact structure and high safety.

Air cabinet: The main conductive circuit, circuit breaker, etc. are exposed to natural air, with a relatively simple structure, but easily affected by the environment.

3. Applicable scenarios

Gas cabinet: Suitable for places with harsh environments, such as high altitudes, dirty areas, and places with high electricity requirements (such as airports, subways, railways, etc.).
Air cabinet: Suitable for conventional environments, such as urban residential areas, factories and enterprises, with low cost and easy maintenance.
4. Performance characteristics
Inflatable cabinet: Not affected by altitude, dirt and other environments, stable insulation performance, long equipment life, maintenance-free or low maintenance.
Air cabinet: Insulation performance is greatly affected by altitude and dirt. Standard products are suitable for areas below 1,000 meters, and special designs are required for higher altitudes.
5. Cost and maintenance
Inflatable cabinet: The initial cost is high, but the long-term maintenance cost is low, suitable for occasions with high reliability requirements.
Air cabinet: The initial cost is low, but the maintenance frequency is high, suitable for occasions with limited budgets and good environmental conditions.

In summary, inflatable cabinets and air cabinets have their own advantages and disadvantages in terms of insulation performance, structural design, applicable scenarios and cost maintenance. Users can choose the appropriate equipment according to specific needs.