A kind of modularization intelligent box fixes gas-filled type high-voltage alternating metal enclosed switchgear
Technical field
The utility model is mainly concerned with high voltage switchgear field, refers in particular to a kind of Intelligent type inflatable high-voltage alternating metal enclosed switchgear (C-GIS) of modularized design.
Background technology
The cabinet type Cubicle Gas-Insulated Switchgear of middle pressure (C-GIS) is a kind of is main switch with circuit breaker, parameter in higher range, for the primary distribution system equipment of 12 ~ 40.5kV or more voltage levels.It is the product SF6 insulation technology of GIS, Sealing Technology and air-insulated metal enclosed switchgear manufacturing technology being carried out organically combining.
Existing gas-filled type (C-GIS) Cubicle Gas-Insulated Switchgear, has the following disadvantages:
1, the control mechanism of vacuum circuit breaker in Cubicle Gas-Insulated Switchgear and the sealing of charging compartment adopt bellows.Because the welded seal technology difficulty of processing of bellows is large, the quality of bellows itself is also very unstable, and thus whole charging compartment exists very large gas leakage potential safety hazard.To all power failures be caused until overhauled, also may will to change whole product under serious conditions, interruption duration can be longer as a product goes wrong.This is that important power supply user institute is unallowable, as industries such as important industrial and mining enterprises, railway traffic, metallurgy, chemical industry.
2, Conventional pneumatic formula (C-GIS) Cubicle Gas-Insulated Switchgear generally adopts single air chamber structure; a three-station isolating/grounding switch can only be had; thus cause outlet or end of incoming cables does not have reliable ground protection, to running, the safety of maintainer do not ensure completely.Most gas-filling cabinet bus connects all on the top of switchgear, and is whole cabinet type structure.During in-site installation, when two cabinets connect, intermediate bus bar connector docking difficulty is quite large, comprises crimp force, concentricity, requirement on machining accuracy quite high.
3, the intelligent level of existing Cubicle Gas-Insulated Switchgear is on the low side, as the crucial service data temperature rise situation of switchgear, the monitoring of vacuum circuit-breaker critical mechanical properties data, switchgear quality can not be reflected in time, can not prevent and overhaul in time, can not meet the development in current generation.
Utility model content
The technical problems to be solved in the utility model is just: the technical problem existed for prior art, the utility model provide a kind of topology layout rationally, sealing is reliable, maintenance is convenient, safe and reliable and the modularization intelligent box with intelligent functions fixes gas-filled type high-voltage alternating metal enclosed switchgear.
For solving the problems of the technologies described above, the utility model by the following technical solutions:
A kind of modularization intelligent box fixes gas-filled type high-voltage alternating metal enclosed switchgear, comprise cabinet and be positioned at multiple function chambers of cabinet, described function chamber comprises low pressure control room, vacuum circuit-breaker and three-station mechanism operation room, bus-bar room and three position mechanism operating room, accessory and toolroom, cable and instrument transformer room, main bus bar pressure releasing chamber, cable and instrument transformer installation room, main bus bar plenum chamber and circuit breaker plenum chamber, described low pressure control room, vacuum circuit-breaker and three-station mechanism operation room, bus-bar room and three position mechanism operating room, accessory and toolroom are from top to bottom arranged successively in the front end of cabinet, the rear end of described cabinet is provided with breaker chamber pressure release passage, described circuit breaker plenum chamber is positioned at the position corresponding with vacuum circuit-breaker and three-station mechanism operation room, cabinet upper back, insulation gas filled in described circuit breaker plenum chamber.
As further improvement of the utility model: the cabinet above described circuit breaker plenum chamber is provided with external plug-pull arrester and external plug-in voltage transformer.
As further improvement of the utility model: be equipped with a three-station in described main bus bar plenum chamber and circuit breaker plenum chamber.
As further improvement of the utility model: described main bus bar plenum chamber and circuit breaker plenum chamber are electrically connected by three-phase intermediate connector.
As further improvement of the utility model: the secondary component of described low pressure instrument indoor location Control protection; Described vacuum circuit-breaker and three-station mechanism operation indoor location have three-station isolating/grounding switch operating mechanism and vacuum circuit breaker operating mechanism.
As further improvement of the utility model: described three-station isolating/grounding switch operating mechanism is connected with the action bars of three-station isolating/grounding switch in air chamber by the first rotary magnetic fluid movable sealing; Described vacuum circuit breaker operating mechanism is connected with the insulated tension pole of vacuum circuit-breaker in air chamber by the movable sealing of direct-acting magnet fluid.
As further improvement of the utility model: be provided with bus-bar room operation mechanism with three-position switch in described bus-bar room and three position mechanism operating room, described bus-bar room operation mechanism with three-position switch is connected with the action bars of three-station in air chamber by the movable sealing of bus-bar room rotary magnetic fluid; The left and right sides, bottom of described main bus bar plenum chamber arranges in a triangle and is provided with three-phase main bus bar intermediate connector seat.
As further improvement of the utility model: described low pressure control room is provided with intelligent route protection supervising device and switchgear Intelligent control device.
Compared with prior art, the utility model has the advantage of:
1, modularization intelligent box of the present utility model fixes gas-filled type high-voltage alternating metal enclosed switchgear, and topology layout rationally, sealing is reliable, maintenance is convenient, safe and reliable; Main conductive circuit due to switchgear is sealed in main bus bar plenum chamber and circuit breaker plenum chamber, a three-station isolating/grounding switch is equipped with in two plenum chambers, under maintenance or power down mode, two three-station isolating/grounding switch all can ground connection, safety when effective guarantee attendant overhauls.Main bus bar plenum chamber and circuit breaker plenum chamber adopt intermediate connector to be electrically connected, when breaker chamber occurs that comparatively major break down scene can not be keeped in repair, can after separating brake breaker chamber circuit breaker, separately main bus bar room three-station isolating/grounding switch, remove relevant connection module, extract vacuum circuit-breaker plenum chamber out, change compartment for subsequent use, restore electricity rapidly, overcoming single air chamber switch cubicle in the past can not on-site maintenance and the long critical defect of interruption duration.
2, modularization intelligent box of the present utility model fixes gas-filled type high-voltage alternating metal enclosed switchgear, and three-station isolating/grounding switch and breaker operation mechanism be unified to be arranged the front portion of charging compartment and sets up the compartment of each separate unit.The housing of two charging compartments is double-decker, the rear portion of breaker chamber, the bottom of main bus bar are equipped with Explosion-proof valve, thus can ensure completely and not injure adjacent switch equipment because of during charging compartment internal fault, meet the requirement of IEC62271-200 Internal faults arc protection completely, the security performance of switch cubicle is further improved, and effectively ensure that personal safety.
3, modularization intelligent box of the present utility model fixes gas-filled type high-voltage alternating metal enclosed switchgear, adopts independently modularized design, two air chamber structure, during in-site installation, can first lower unit is in place after, then carry out the assembling of its its unit of electricity.The feature of this design is just: adopt modularized design, lower unit only has 1/3rd weights of whole switchgear, and position is lower, two switchgears very easily slide when being connected, thus extremely very difficult difficult problem when solving inflatable switch cabinet two switchgear connection before, in turn ensure that the high reliability that main bus bar connects simultaneously.
4, modularization intelligent box of the present utility model fixes gas-filled type high-voltage alternating metal enclosed switchgear, adopt modularized design, two air chamber structure, reach maximum personal safety guarantee, can flexible expansion, there is the technique effects such as compact conformation, long-life, volume be little, can the maneuverability condition of remote monitoring switchgear and core component vacuum circuit-breaker in real time, the quality of prediction and failure diagnosis switchgear, has intelligent functions.And then the requirement that the important electricity consumption place such as electric power system, important power supply enterprise, underground railway, metallurgy, chemical industry becomes distribution can be met, make it to reach higher security assurance level, meet following intelligentized requirement simultaneously.
Accompanying drawing explanation
Fig. 1 is main TV structure schematic diagram of the present utility model.
Fig. 2 is the main TV structure schematic diagram after the door-plate of two pieces, dismounting front of the present utility model.
Fig. 3 is the right TV structure schematic diagram after the utility model removes side plate.
Fig. 4 is the layout principle schematic in the utility model cabinet.
Marginal data:
1, cabinet; 2, the first airtight table; 3, the first rotary magnetic fluid movable sealing; 4, three-station isolating/grounding switch operating mechanism; 5, vacuum circuit-breaker insulated assembly; 6, direct-acting magnet fluid movable sealing; 7, vacuum circuit breaker operating mechanism; 8, upper chamber intermediate connector seat; 9, the first intermediate connector; 10, lower chamber intermediate connector seat; 11, the airtight table of bus-bar room; 12, bus-bar room operation mechanism with three-position switch; 13, bus-bar room rotary magnetic fluid movable sealing; 14, three-station; 15, the main busbar of bus-bar room; 16, bus-bar room A phase branch busbar; 17, bus-bar room B phase branch busbar; 18, bus-bar room C phase branch busbar; 21, inner cone insulator is used in detection; 22, the quiet end of circuit breaker connects busbar; 23, line connects busbar; 26, bus intermediate connector seat; 101, low pressure control room; 102, circuit breaker and three-station mechanism operation room; 103, bus-bar room and three position mechanism operating room; 104, accessory and toolroom; 105, cable and instrument transformer room; 106, main bus bar pressure releasing chamber; 107, cable and instrument transformer installation room; 108, main bus bar plenum chamber; 109, circuit breaker plenum chamber; 110, breaker chamber pressure release passage; 111, plug-pull arrester; 112, plug-in voltage transformer; 301, intelligent route protection supervising device; 302, switchgear Intelligent control device; 336, radio receiver.
Embodiment
Below with reference to Figure of description and specific embodiment, the utility model is described in further details.
As shown in Figure 1 to 4, modularization intelligent box of the present utility model fixes gas-filled type high-voltage alternating metal enclosed switchgear, comprise cabinet 1 and be positioned at multiple function chambers of cabinet 1, function chamber comprises: low pressure control room 101, vacuum circuit-breaker and three-station mechanism operation room 102, bus-bar room and three position mechanism operating room 103, accessory and toolroom 104, cable and instrument transformer room 105, main bus bar pressure releasing chamber 106, cable and instrument transformer installation room 107, main bus bar plenum chamber 108 and circuit breaker plenum chamber 109, low pressure control room 101, vacuum circuit-breaker and three-station mechanism operation room 102, bus-bar room and three position mechanism operating room 103, accessory and toolroom 104 are from top to bottom arranged successively in the front end of cabinet 1, the rear end of cabinet 1 is provided with breaker chamber pressure release passage 110, circuit breaker plenum chamber 109 is positioned at the position corresponding with vacuum circuit-breaker and three-station mechanism operation room 102, cabinet 1 upper back, cabinet 1 above circuit breaker plenum chamber 109 is provided with external plug-pull arrester 111 and external plug-in voltage transformer 112.Main bus bar plenum chamber 108 is positioned at the top of main bus bar pressure releasing chamber 106.
Each function chamber and functional module are all adopt separate modular design above, the main conductive circuit of cabinet 1 is divided into two charging compartments: main bus bar plenum chamber 108 and circuit breaker plenum chamber 109, main bus bar plenum chamber 108 is positioned at the middle and lower part of cabinet 1, and circuit breaker plenum chamber 109 is positioned at the upper back of cabinet 1.During making, can using after main bus bar plenum chamber 108, main bus bar pressure releasing chamber 106, cable and instrument transformer installation room 107 are assembled as an installation unit (general designation lower unit).During in-site installation, first that lower unit is in place, put the connected bus intermediate connector of two switchgears by code, the lower unit of another switchgear is drawn close manned lower unit by guide, two lower units can be locked by connecting bolt after correction; At the intermediate connector that the lower unit that First is in place is connected by this cabinet two unit on code cover, again that circuit breaker plenum chamber 109 is vertically in place on First lower unit, connecting bolt is locked, be loaded on other unit of this switchgear, the rest may be inferred, can complete the in-site installation of permutation switchgear.The feature of this design is just: after adopting above-mentioned distribution form, lower unit just only has 1/3rd weights of whole switchgear, and position is lower, two switchgears very easily slide when being connected, thus extremely very difficult difficult problem when solving inflatable switch cabinet two switchgear connection before, in turn ensure that the high reliability that main bus bar connects simultaneously.
Further, be equipped with a three-station 14 in main bus bar plenum chamber 108 and circuit breaker plenum chamber 109, under maintenance or power down mode, two switches all can ground connection, has effectively ensured safety when attendant overhauls.
In the present embodiment, main bus bar plenum chamber 108 and circuit breaker plenum chamber 109 adopt three-phase intermediate connector to be electrically connected, and namely upper chamber intermediate connector seat 8, first intermediate connector 9, lower chamber intermediate connector seat 10 are connected.When circuit breaker plenum chamber 109 occurs that comparatively major break down scene can not be keeped in repair, can after separating brake vacuum circuit-breaker insulated assembly 5, the three-station 14 disconnected in main bus bar plenum chamber 108, remove related connection unit, can vertically extract circuit breaker plenum chamber 109 out, change compartment for subsequent use, restore electricity rapidly, overcoming gas-filled type switchgear in the past can not on-site maintenance and the long critical defect of interruption duration.
In the present embodiment, cabinet 1 has all been adopted and has been covered aluminium zinc steel plate and assemble after the multiple bending of CNC machine tooling except front and back panel, cable and instrument transformer room 105, main bus bar pressure releasing chamber 106 adopt aluminium alloy extrusions to assemble, main bus bar plenum chamber 108 and circuit breaker plenum chamber 109 adopt double-deck stainless steel to be welded through full-automatic mechanical hand, ensure that the consistency of cabinet 1, rigidity and machining accuracy, be convenient to the production of batch simultaneously.
In the present embodiment, the secondary component of Control protection can be installed in low pressure control room 101.
In the present embodiment, in vacuum circuit-breaker and three-station mechanism operation room 102, three-station isolating/grounding switch operating mechanism 4 and vacuum circuit breaker operating mechanism 7 are installed, the first airtight table 2 is installed simultaneously.Three-station isolating/grounding switch operating mechanism 4 is connected with the action bars of three-station in air chamber 14 by the first rotary magnetic fluid movable sealing 3.Vacuum circuit breaker operating mechanism 7 is connected with the insulated tension pole of vacuum circuit-breaker in air chamber by direct-acting magnet fluid movable sealing 6.
Be filled with hypobaric SF6 insulating gas in circuit breaker plenum chamber 109, its top upside-down mounting has connection plug-in voltage transformer 112, plug-pull arrester 111 and the detection inner cone insulator 21 as outside electrical verification, also uses as the support of bus simultaneously.Front portion has installed in the upper and lower order three-station 14 and vacuum circuit-breaker insulated assembly 5, the middle fixed contact of three-station 14 is connected with the conducting end of vacuum circuit-breaker insulated assembly 5, the quiet conducting end of vacuum circuit-breaker insulated assembly 5 connects busbar 22 by the quiet end of a circuit breaker and is connected with upper chamber intermediate connector seat 8, the front fixed contact of three-station 14 connects busbar 23 by line and is connected with breaker chamber line big current inner cone insulator 20, forms the major loop that vacuum circuit breaker charging compartment is complete.Plug-pull arrester 111 is connected to line with plug-in voltage transformer 112 with inner cone insulator and is connected on busbar 23, detection with inner cone insulator 21 and as line connect busbar 23 support use.
In bus-bar room and three position mechanism operating room 103, bus-bar room operation mechanism with three-position switch 12 is installed, be provided with the airtight table 11 of bus-bar room equally, bus-bar room operation mechanism with three-position switch 12 is connected with the action bars of three-station in air chamber 14 by bus-bar room rotary magnetic fluid movable sealing 13.The left and right sides, bottom of main bus bar plenum chamber 108 arranges in a triangle and is provided with three-phase main bus bar intermediate connector seat 26, and main bus bar intermediate connector seat 26 is connected by the first intermediate connector 9 bus carried out between cabinet with cabinet.The main busbar 15 in three-phase bus room is connected with in the left and right sides first intermediate connector 9, the main busbar 15 of bus-bar room is connected with three phase front fixed contacts of three-station 14 respectively by bus-bar room A phase branch busbar 16, bus-bar room B phase branch busbar 17, bus-bar room C phase branch busbar 18, in the middle of the three-phase of three-station 14, fixed contact is connected with lower chamber intermediate connector seat 10 again, thus goes into a complete major loop.Bus-bar room and three position mechanism operating room 103 are connected with accessory and toolroom 104, and according to the needs of user, central dividing plate can be removed.
Modularization intelligent box of the present utility model fixes gas-filled type Cubicle Gas-Insulated Switchgear (C-GIS), and low pressure control room 101 is provided with intelligent route protection supervising device 301 and switchgear Intelligent control device 302.Intelligent route protection supervising device 301 is integrated with breaker mechanic property, overtravel, control loop template, operation lifetime etc. can carry out effective monitoring to the important parameter in circuit breaker Life cycle.Switchgear main conductive circuit three-phase reaches the temperature rise monitoring of 33 points, upper and lower three station ground connection/isolating switch logic control and motor protection function, and the Control protection function having that former microcomputer protecting device has.The utility model can adopt multiple communication modes according to actual needs, by data upload and can realize remote monitoring and operation.The function of switchgear Intelligent control device 302 mainly comprises: the display of switchgear humiture and control, switchgear HV live displaying, control with remote operation on the spot, divide-shut brake supply voltage shows, circuit breaker and the state simulation amount such as isolating/grounding switch Position Control and display, electric parameter measurement.The utility model has RS485 communication function; the parameters such as electrical quantity, state simulation amount, humiture can be uploaded to Intelligent protection measuring controller or distant place control centre; make former each dispersion independently control unit focus on a device; greatly reduce the installation of switchgear; make execute-in-place simple and clear; ensure that fail safe and the environmental condition of switchgear execute-in-place, make switchgear achieve truly Based Intelligent Control and protection, reach Highgrade integration simultaneously.
As from the foregoing; modularization intelligent box of the present utility model fixes gas-filled type Cubicle Gas-Insulated Switchgear (C-GIS); main conductive part all monitors the temperature rise situation at each position by radio detection; can predict in advance and whether be in normal operating condition with pilot switch equipment; the generation of minimizing accident; supporting the use with intelligent route protection supervising device 301 to make switchgear meet intelligentized requirement completely, and the security performance of switchgear is further enhanced.Monitoring site comprises: three-station isolating/grounding switch and line busbar junction, the Interposer contact of three-station 14 and junction, vacuum circuit-breaker moved end, the quiet end of vacuum circuit-breaker and intermediate connector busbar junction, intermediate connector is connected busbar place with circuit breaker, the Interposer contact junction of intermediate connector and bus-bar room three-station 14, the leading-out terminal contact of bus-bar room three-station 14 be connected busbar place, the main busbar of C phase and branch's busbar junction, the main busbar of B phase and branch's busbar junction, the main busbar of A phase and branch's busbar junction, the connection busbar junction of branch's busbar and three-station 14, cable end junction, breaker chamber line busbar and inner cone insulator junction.Radio detection monitoring divides two groups and carries out, and monitors 15 points for one group, another group monitoring 18 points, and is equipped with two cover radio receivers 336.Radio receiver 336 can upload the data to intelligent route protection supervising device 301.
Below be only preferred implementation of the present utility model, protection range of the present utility model be not only confined to above-described embodiment, all technical schemes belonged under the utility model thinking all belong to protection range of the present utility model.It should be pointed out that for those skilled in the art, not departing from the some improvements and modifications under the utility model principle prerequisite, protection range of the present utility model should be considered as.