A kind of Cubicle Gas-Insulated Switchgear
Technical field
The utility model relates to a kind of power switchgear, particularly the Cubicle Gas-Insulated Switchgear of a kind of control of electric power system and protection usefulness.
Background technology
Cubicle Gas-Insulated Switchgear, be abbreviated as GIS (Gas Insulated Switchgear), traditional Cubicle Gas-Insulated Switchgear (Fig. 1 a) mainly comprise breaker unit, the Disconnecting switch unit of forming by isolating switch, earthed switch and high speed grounding switch, current transformer unit, in lead part etc.; In Fig. 1 b, operating mechanism of the equal adapted of each Disconnecting switch unit can not be realized three-phase mechanical linkage, and mechanism and amount of parts are many, connects relative complex; While isolating switch overall dimensions is big and versatility is poor, and standardization level is not high.Above primary conductive element is enclosed in the metal shell, fills the SF6 gas-insulated, is mainly used in the control and the protection of electric power system.
Fast development along with electricity market, power consumer not only claims to the product technology performance, still more and more higher to the requirement of versatility, standardization level and the outward appearance of GIS element, therefore high voltage switchgear manufacturer need carry out skill upgrading and optimize improvement traditional Cubicle Gas-Insulated Switchgear, make that its highly versatile, standardization level height, structure are simpler, further compoundization of function, performance be more reliable, profile harmonious more attractive in appearance, further realize the standardized designs of GIS product.
Summary of the invention
The technical problems to be solved in the utility model is on the basis of Fig. 1 tradition Cubicle Gas-Insulated Switchgear it to be carried out skill upgrading, and a kind of terminal with compact integral structure is provided, the Cubicle Gas-Insulated Switchgear of simple to operate, dependable performance.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of Cubicle Gas-Insulated Switchgear comprises a horizontal breaker unit, and this top, breaker unit both sides is symmetrically arranged with two vertical current mutual inductor units, and each top, current transformer unit is provided with Disconnecting switch unit; Disconnecting switch unit by insulating basin respectively with interiorly lead part, the current transformer unit links to each other, carries out the air chamber isolation by insulating basin between each unit; It is characterized in that described Disconnecting switch unit adopts the vertical or horizontal top, two current transformer unit that is arranged symmetrically in.
In the such scheme, described Disconnecting switch unit comprises isolating switch, earthed switch and high speed grounding switch, and their compound closure is in an isolating switch housing.Described isolating switch is realized three-phase mechanical linkage by an isolating switch operating mechanism, earthed switch by an earthing switch operating mechanism.Described isolating switch operating mechanism and earthing switch operating mechanism link to each other with intermediate connecting mechanism by the connecting rod assembly unit, drive end bindiny mechanism by the connecting rod assembly unit again and carry out three-phase mechanical linkage.
The shell of described breaker unit adopts the round as a ball welding of aluminium sheet to form, and its two ends and flange coupling part, termination are provided with the end easement curve.Described termination flange is outstanding arc modeling.
Described insulating basin is provided with quoit at its cylindrical.
Compare with traditional Cubicle Gas-Insulated Switchgear, the utlity model has following advantage:
1, because Disconnecting switch unit can adopt vertical or horizontal flexible arrangement according to arrangement, and can realize three-phase mechanical linkage, simple to operate, amount of parts significantly reduces simultaneously, so interface generality is good, the standardization level height; Can satisfy the various modes of connection.
2, to the processing of adopting new technology of breaker unit housing, and profile industrialization shape-designing, increase the curve rounding off at the housing both ends, make the GIS monnolithic case more attractive in appearance, generous.
3, insulating basin is improved design, be provided with quoit, saved earth connection and ground connection piece at cylindrical, on-the-spot easy for installation, simple.Installation period has been shortened in the also corresponding minimizing of number of spare parts simultaneously, has saved certain human and material resources and financial resources.
Description of drawings:
Fig. 1 is a kind of structural plan of traditional GIS equipment.Fig. 1 b wherein) be that Fig. 1 B-B a) is to view.
Fig. 2 is a kind of structural plan of the utility model GIS equipment.Fig. 2 b wherein) be that Fig. 2 B-B a) is to view.
Fig. 3 is the another kind of structural plan of the utility model GIS equipment.Fig. 3 b wherein) be Fig. 3 a) B-B to view.
Among Fig. 2, Fig. 3,1, leads part in, 2, insulating basin (band quoit), 3, Disconnecting switch unit (comprising GL linear pattern and GR perpendicular type), 4, earthing switch operating mechanism, 5, the isolating switch housing, 6, isolating switch operating mechanism, 7, high speed grounding switch operating mechanism, 8, the termination flange, 9, SF
6Aerating device, 10, breaker operation mechanism, 11, the current transformer unit, 12, breaker unit, 13, the connecting rod assembly unit, 14, intermediate connecting mechanism, 15, end bindiny mechanism, 16, end easement curve.
Embodiment
The utility model is described in further detail below in conjunction with drawings and Examples.
Embodiment 1
As Fig. 2 a) shown in, a kind of Cubicle Gas-Insulated Switchgear, lead part 1 in comprising, parts such as Disconnecting switch unit 3, current transformer unit 11, breaker unit 12, breaker unit 12 and Disconnecting switch unit 3 all adopt horizontal layout, breaker unit 12 horizontal arrangement, housing top, both sides is current transformer unit 11, Disconnecting switch unit 3 is fixed on the mutual device of electric current unit 11 upper horizontal and arranges, link to each other with the interior part 1 of leading by insulating basin 2, the above unit carries out air chamber by insulating basin 2 to be divided, in be filled with SF
6Gas insulate, and integrated operation is simple, flexible arrangement.
Breaker unit 12 can adopt the round as a ball welding of aluminium sheet to form, and has replaced the steel plate welding forming of Fig. 1, has reduced cost, secondly housing is adopted the theory of Industrial Moulding Design, and two ends increase end easement curve 16, have cancelled suspension ring and SF on the Shell of circuit breaker simultaneously
6Aerating device, and the opposite end head flange gives prominence to arc modeling, with SF
6Aerating device 9 is installed on the circular arc flange, and along with dwindling of Cubicle Gas-Insulated Switchgear spacing, the scene of being convenient to is more operated and observed, and monnolithic case is attractive in appearance, harmonious, generous.
Isolating switch housing 5 after the improvement adopts foundry goods machine-shaping, cancelled the ground connection piece on the isolating switch housing simultaneously, and whole isolated switch element 3 carried out miniaturization, generalization and standardized designs are enclosed in isolating switch, earthed switch and high speed grounding switch in the Disconnecting switch unit 3.Insulating basin 2 after the improvement has increased quoit (not drawing among the figure) at cylindrical, the earth connection that links to each other between each air chamber among Fig. 1 and ground connection piece on the housing have been cancelled, the on-site installation work amount is reduced, and convenient, simple, monnolithic case is harmonious, attractive in appearance more.
As Fig. 2 b) shown in, the shared isolating switch operating mechanism 6 of the isolating switch in the Disconnecting switch unit 3, the shared earthing switch operating mechanism 4 of earthed switch, isolating switch and earthed switch all can be realized three-phase mechanical linkage.Isolating switch operating mechanism 6 and earthing switch operating mechanism 4 link to each other with intermediate connecting mechanism 14 by connecting rod assembly unit 13, drive end bindiny mechanism 15 by connecting rod assembly unit 13 again and carry out three-phase mechanical linkage.
Embodiment 2
As shown in Figure 3, another kind of Cubicle Gas-Insulated Switchgear, according to the different main electrical schemes and the field erected space size of Cubicle Gas-Insulated Switchgear, Disconnecting switch unit 3 adopts vertical layout, and all the other are with embodiment 1.
The utility model adopts vertical or horizontal layout (Disconnecting switch unit can only adopt horizontal layout in Fig. 1 traditional GIS) flexible arrangement, easy-to-connect according to on-the-spot mounting condition with Disconnecting switch unit.Simultaneously isolating switch, earthed switch respectively by one isolate operating mechanism 6, a ground connection operating mechanism 4 is realized the three-phase mechanical linkages, operating mechanism and number of spare parts are few, and be simple to operate, easy for installation.Insulating basin 2 adopts the band quoits in addition, so all cancelled the ground connection piece on the isolating switch housing 5, bus housing, has saved a large amount of earth connections.