The fixed metal enclosed switchgear of a kind of box
Technical field
The utility model relates to the fixed metal enclosed switchgear of a kind of box.
Background technology
The extensive use on market of the fixed metal enclosed switchgear of 10kV box, because its fixed enclosed construction, it is simple to operate, volume is less, regular maintenance is more convenient etc., and advantage makes that this area is used comparatively extensive at certain.But its specific environment for use also is subjected to restriction to a certain degree because of its specific structure.Usually use elevation of its standard highly be 1000 meters reach below, to a certain degree influenced the scope of product.
The utility model content
Main purpose of the present utility model is to provide a kind of scope of application more extensive, the fixed metal enclosed switchgear of box safe and reliable to operation.
For addressing the above problem, the utility model adopts following technical scheme: the fixed metal enclosed switchgear of a kind of box, comprise body construction, and be arranged on the sulphur hexafloride circuit breaker of body construction inner and upper position, and be arranged on the earthed switch of the inner lower position of body construction, and the ground connection that is arranged on body construction interior periphery position is arranged, and be arranged on the bus bearing of sulphur hexafloride circuit breaker top, and be arranged on the last fuse bearing of sulphur hexafloride circuit breaker below, and be arranged on the following fuse bearing of earthed switch top, and be arranged on the fuse between fuse bearing and the following fuse bearing; Be arranged with flange insulation resin cover on the last fuse bearing of described every phase and the bus bearing.
Further, described going up between fuse bearing and the sulphur hexafloride circuit breaker is provided with fuse dropout assembly parts.
Further, also be provided with function direction board, nameplate and analog board on the described body construction.
The beneficial effect of the fixed metal enclosed switchgear of the utility model box is: the scope of application is more extensive, can satisfy instructions for use in the elevation of equipment installation site under greater than 1000 meters environment, make the operation that the fixed metal enclosed switchgear of 10kV box can be safe and reliable under altitude environment.
Description of drawings
Fig. 1 is the front view of the fixed metal enclosed switchgear of the utility model box;
Fig. 2 is the end view of the fixed metal enclosed switchgear of the utility model box.
Embodiment
See also illustrated in figures 1 and 2, the fixed metal enclosed switchgear of a kind of box of the present utility model, comprise body construction 4, and be arranged on the sulphur hexafloride circuit breaker 5 of body construction 4 inner and upper positions, and be arranged on the earthed switch 15 of body construction 4 inner lower positions, and the ground connection that is arranged on body construction 4 interior periphery positions arranges 16, and be arranged on the bus bearing 6 of sulphur hexafloride circuit breaker 5 tops, and be arranged on the last fuse bearing 12 of sulphur hexafloride circuit breaker 5 belows, and be arranged on the following fuse bearing 14 of earthed switch 15 tops, and be arranged on the fuse 13 between fuse bearing 12 and the following fuse bearing 14; Be arranged with flange insulation resin cover 25 on the last fuse bearing 12 of described every phase and the bus bearing 6.Described going up between fuse bearing 12 and the sulphur hexafloride circuit breaker 5 is provided with fuse dropout assembly parts 11.Also be provided with function direction board 1, nameplate 2 and analog board 3 on the described body construction 4.
The on-load switch that the fixed metal enclosed switchgear of this 10kV box adopts and conventional consistent SF
6On-load switch; In order to strengthen creepage distance, fuse bearing and bus bearing in every phase put a flange insulation resin cover 25, insulating case to cut off grade consistent with the class of insulation and the voltage withstand class of on-load switch, flange insulation resin cover and on-load switch are compressed and stick insulation fat prevent creepage.Effectively strengthen the insulation creep distance.
Because high specific environment for use above sea level, all creepage distances by the primary circuit of 10kV all need to revise by the creepage distance under the environment for use of 1000 meters of national standards, and the creepage distance that the every rising of height above sea level is 1000 meters all will increase by 20%.The fixed metal enclosed switchgear of plateau type 10kV box of band reinforced insulation can solve this problem.
The beneficial effect of the fixed metal enclosed switchgear of the utility model box is: the scope of application is more extensive, can satisfy instructions for use in the elevation of equipment installation site under greater than 1000 meters environment, make the operation that the fixed metal enclosed switchgear of 10kV box can be safe and reliable under altitude environment.
The above only is embodiment of the present utility model, but protection range of the present utility model is not limited thereto, and any variation or replacement of expecting without creative work all should be encompassed within the protection range of the present utility model.Therefore, protection range of the present utility model should be as the criterion with the protection range that claims were limited.