CN104865505B - A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS - Google Patents
A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS Download PDFInfo
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- CN104865505B CN104865505B CN201510216696.6A CN201510216696A CN104865505B CN 104865505 B CN104865505 B CN 104865505B CN 201510216696 A CN201510216696 A CN 201510216696A CN 104865505 B CN104865505 B CN 104865505B
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Abstract
The present invention provides a kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS, it is characterized in that：Including one SF6 gas tank body components are filled by what outlet casing tube component, single-phase insulating basin, tank body and three phase isolated basin assembled from top to bottom；Be provided with the tank body three isolation earthed switch component, the electric conductor upper end of the single-phase insulating basin and outlet casing tube component are electrically connected, top surface of the electric conductor lower end then with a connecting plate be connected, three isolation the upper end of earthed switch component be fixedly connected on the connecting plate bottom surface upper and lower end then three-phase electric conductor of connection three phase isolated basin respectively.Without reclaiming the SF6 gases in SF6 gas tank body components and vacuumizing during present invention work, shorten the test period, also greatly improve operating efficiency and reduce cost of labor, while be avoided that the generation of equipment or personal security accident caused by electric discharge.
Description
Technical field
The present invention relates to a kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS.
Background technology
Operating GIS still suffers from the effect of various overvoltage in addition to the normal phase voltage for bearing system for a long time.For
Ensure GIS operation reliably and with long-term, it is necessary to which industrial frequency withstand voltage experiment is carried out to GIS.Existing three-phase combined type type high pressure GIS is carried out
Industrial frequency withstand voltage test when, particularly product indoors when, limited by field condition, can not use three-phase outlet casing tube it is disposably right
GIS carries out industrial frequency withstand voltage experiment.Current test method is to take single-phase outlet casing tube test method and be gradually completing three-phase to show
Experiment, so as to cause it is every completion one phase experiment after, it is necessary to again reclaim outlet casing tube in SF6 gases, in GIS products
Cable termination changes another phase again, while remaining two-phase is grounded, and outlet casing tube then is extracted into vacuum and is filled with SF6 gas
Body, then carry out industrial frequency withstand voltage experiment.It is required for being manually grounded remaining two-phase with external ground wire during each commutation, once
Forget ground connection or ground connection that can not be good, induced potential will be produced at the trial, cause electric discharge to jeopardize equipment or personnel
Safety.So repeat operation, not only make it that the test period is very long, and substantially reduce operating efficiency and improve the people of product
Work cost.
The content of the invention
The technical problems to be solved by the invention, just it is to provide a kind of industrial frequency withstand voltage for three-phase combined type type high pressure GIS
Experimental rig, the test period can be shortened, greatly improve operating efficiency and reduce cost of labor, avoid the equipment caused by electric discharge
Or the generation of personal security accident.
Solves above-mentioned technical problem, the present invention uses following technical scheme：
A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS, it is characterized in that：Including one by lead collar
What tube assembly, single-phase insulating basin, tank body and three phase isolated basin assembled from top to bottom fills SF6 gas tank body components；Institute
State be provided with tank body three isolation earthed switch component, electric conductor upper end and the outlet casing tube component of the single-phase insulating basin
Electrical connection, top surface of the electric conductor lower end then with a connecting plate be connecteds, three isolate the upper end of earthed switch component be fixedly connected on
Connecting plate bottom surface upper and lower end then connects the three-phase electric conductor of three phase isolated basin respectively.
The isolation earthed switch component by disconnecting switch movable contact block component, disconnecting switch moving contact operating mechanism, quiet
Contact holder assembly and moving contact of grounding switch holder assembly are formed.
Using above-mentioned technical proposal, when a certain phases of three-phase combined type type high pressure GIS are in industrial frequency withstand voltage experiment, also
Be be connected with this isolate earthed switch component be in disconnecting switch combined floodgate grounding switch tripping state, it is possible to achieve other
Two-phase is in disconnecting switch separating brake earthed switch "on" position；And after this mutually completes industrial frequency withstand voltage experiment, can directly it lead to
Overregulate isolation earthed switch components cause the second phase be in disconnecting switch combined floodgate and grounding switch tripping state, and other two
Mutually in disconnecting switch separating brake and earthed switch "on" position, the like until completing three-phase test.Whole process does not have to back
Receive the SF6 gases in SF6 gas tank body components and vacuumize, shorten the test period, also greatly improve operating efficiency and reduction
Cost of labor.
Described disconnecting switch movable contact block component is：The first base placed vertically, it is provided with what can be moved up and down in it
First moving contact, the upper end of first base are connected with described connecting plate bottom surface.
Described disconnecting switch moving contact operating mechanism is：One is located at the horizontal base beside first base, in it
Feathering axis is pivotally supported with, the insulating bar of rotary shaft front end one is fixed with a little gear, and the gear is with consolidating
The rack engagement being scheduled on moving contact, rotation shaft rear end stretch out tank body and are fixed with first gear and operation rocking handle, and base is fixed
On tank body.
Described fixed contact pedestal component is：One is located at the first base that the disconnecting switch movable contact block component is placed vertically
The fixed contact pedestal of lower section, it is in the upper end axially adjacent to disconnecting switch movable contact block component and side, to be respectively equipped with first dynamic
Contact sets of holes and the second moving contact sets of holes, the interior cylindrical static contact for being provided with earthed switch of the second moving contact sets of holes, stationary contact
Header elements lower end is connected with a phase electric conductor of three phase isolated basin.
The moving contact of grounding switch holder assembly is：One is located at the horizontal the second header beside the fixed contact pedestal component,
It is rotatable but be supported with a T-shaped tooth screw rod with can not moving forward and backward and one can move forward and backward but not rotatable tubulose in it
Second moving contact, the rear end of the moving contact of tubulose second are fixed with a T-shaped tooth nut and coordinated with the T-shaped tooth screw rod；Described pipe
The moving contact of shape second correspond to the cylindrical static contact in described fixed contact pedestal component the second moving contact sets of holes, and described is T-shaped
Tooth spiro rod rear end stretches out tank body and is fixed with second gear, second gear and described disconnecting switch moving contact operating mechanism first
Gear engages.
Connecting hole is provided among the connecting plate, and three flange forms are evenly equipped with the connecting plate bottom surface around connecting hole
Contact, the connecting hole of the connecting plate is connected with the electric conductor lower end of single-phase insulating basin, flange form contact then with disconnecting switch
The first base upper end connection of movable contact block component.
Described outlet casing tube component includes outlet terminal, outlet casing tube, outlet contact base, rod-shaped conductor, described bar-shaped
Conductor is located in outlet casing tube and penetrates its both ends, and the outlet terminal is located at outlet casing tube upper end and connected with rod-shaped conductor upper end
Connect, the outlet contact base upper end is connected with rod-shaped conductor lower end, and the outlet contact base lower end is connected to single-phase insulating basin
Electric conductor upper end.
In use, the high-voltage line of power frequency high voltage generating loop device is connected with outlet terminal, three phase isolated basin is connected to
On the three-phase of three-phase combined type type high pressure GIS cable termination outlet products, then rotate clockwise one of which isolation earthed switch
The rocking handle of component so that group isolation earthed switch component be in disconnecting switch combined floodgate and grounding switch tripping state, and inverse time
Pin rotate rotate other two groups of isolation earthed switch component rocking handle cause other two groups in disconnecting switch separating brake and be grounded out
Close "on" position, you can industrial frequency withstand voltage experiment is mutually carried out to this；Then it is resistance to power frequency to be carried out to other two-phases using same method
Pressure experiment.Whole process need not reclaim SF6 gases in outlet casing tube and and vacuumize, while can ensure that other two-phases connect safely
Ground.
Compared with prior art, inventive article has the following advantages：
The present invention does not have to the SF6 gases in recovery SF6 gas tank body components and vacuumized, and shortens the test period, also significantly
Improve operating efficiency and reduce cost of labor, while be avoided that the generation of equipment or personal security accident caused by electric discharge.
Brief description of the drawings
Fig. 1 is the schematic perspective view of the present invention；
Fig. 2 be the single-phase insulating basin of the present invention, three phase isolated basin and isolation earthed switch component the three-dimensional signal of combination
Figure；
Fig. 3 is the closure stereogram of disconnecting switch movable contact block component of the present invention and fixed contact pedestal component；
Fig. 4 is Fig. 3 top view；
Fig. 5 is the B-B sectional views in Fig. 4；
Fig. 6 is the A-A sectional views in Fig. 5；
Fig. 7 is the disconnection schematic diagram of moving contact of grounding switch holder assembly of the present invention and fixed contact pedestal component；
Fig. 8 is the A-A sectional views in Fig. 7；
Fig. 9 is the partial enlarged drawing in Fig. 2；
Figure 10 is the T-shaped tooth screw rod schematic diagram of the present invention；
Figure 11 is the second fixation base schematic diagram of the present invention；
Figure 12 is cooperation schematic diagram of second moving contact with T-shaped tooth nut of the present invention；
Figure 13 is the outlet casing tube component diagram of the present invention；
Figure 14 is the partial enlarged drawing in Figure 13；
Figure 15 is the top view of the single-phase insulating basin of the present invention；
Figure 16 is the A-A sectional views in Figure 15；
Figure 17 is the schematic perspective view of three phase isolated basin of the present invention.
In figure：1- outlet casing tube components, the single-phase insulating basins of 2-, 3- tank bodies, 4- three phase isolated basins, 5- isolation ground connection
Switch module, 6- racks, 7- gears, 8- insulating bars, 9- rotary shafts, 10- bases, 1A- first gears, 1B- second gears, 1C-
Rocking handle, 2A- connecting plates, 11- outlet terminals, 12- outlet casing tubes, 13- rod-shaped conductors, 14- outlet contact bases, under 21- electric conductors
End, 22- electric conductors upper end, 51- disconnecting switch movable contact block components, 52- fixed contact pedestal components, 53- moving contact of grounding switch seats
Component, the moving contacts of 511- first, the bases of 512- first, 521- fixed contact pedestals, 522- the first moving contact sets of holes, 523- second is dynamic to be touched
Headgear hole, 524- cylindrical contacts, the moving contacts of 531- second, 532-T type tooth nuts, 533-T type tooth screw rods, 534- second are managed
Seat.
Embodiment
With embodiment, the invention will be further described below in conjunction with the accompanying drawings.
As shown in Figure 1, 2, a kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS, including one by going out
What thread casing component 1, single-phase insulating basin 2, tank body 3 and three phase isolated basin 4 assembled from top to bottom fills SF6 gas tank bodies
Component；Be provided with tank body three isolation earthed switch component 5, electric conductor upper end 22 and the outlet casing tube group of single-phase insulating basin 2
Part electrical connection, top surface of the electric conductor lower end 21 then with a connecting plate 2A be connecteds, three isolate the upper end of earthed switch component 5 consolidate
Surely it is connected to the three-phase electric conductor that the connecting plate 2A bottom surfaces upper and lower end then connects three phase isolated basin 4 respectively.
As shown in Fig. 3 to 12, isolation earthed switch component by disconnecting switch movable contact block component 51, disconnecting switch is dynamic touches
Head operating mechanism, fixed contact pedestal component 52 and moving contact of grounding switch holder assembly form 53；Disconnecting switch movable contact block component is
The first base 512 placed vertically, is provided with the first moving contact 511 that can be moved up and down in it, the upper end of first base with
Described connecting plate 2A bottom surfaces connection；Disconnecting switch moving contact operating mechanism is a horizontal tube being located at beside first base
Seat 10, feathering axis 9 is pivotally supported with it, the insulating bar 8 of rotary shaft front end one is fixed with a little gear 7,
The gear engages with the rack 6 being fixed on the first moving contact, and the rear end of rotary shaft 9 stretches out tank body 3 and is fixed with first gear
1A and operation rocking handle 1C, base 10 are fixed on tank body 3；Fixed contact pedestal component 52 is located at the disconnecting switch movable contact block for one
The fixed contact pedestal 521 for the lower section of the first base 512 that component 51 is placed vertically, it is axially adjacent to disconnecting switch movable contact block component
51 upper end and side, it is respectively equipped with the first moving contact sets of holes 522 and the second moving contact sets of holes 523, second moving contact
The 523 cylindrical static contact 524 provided with earthed switch, fixed contact pedestal component lower end and a phase of three phase isolated basin 4 in sets of holes
Electric conductor connects；Moving contact of grounding switch holder assembly 53 is a horizontal the second header for being located at the side of fixed contact pedestal component 51
534, it is rotatable in it but be supported with a T-shaped tooth screw rod 533 and one with can not moving forward and backward can move forward and backward but not rotatable
The second moving contact of tubulose 531, the rear end of the moving contact of tubulose second is fixed with a T-shaped tooth nut 532 and the T-shaped tooth screw rod
533 coordinate, and described the second moving contact of tubulose 531 correspond to the cylinder in described fixed contact pedestal component the second moving contact sets of holes
Shape static contact 524, the described T-shaped rear end of tooth screw rod 533 stretch out tank body and are simultaneously fixed with second gear 1B, second gear 1B with it is described
Disconnecting switch moving contact operating mechanism first gear 1A engagement.
Using above-mentioned technical proposal, when a certain phases of three-phase combined type type high pressure GIS are in industrial frequency withstand voltage experiment, also
Be be connected with this isolate earthed switch component be in disconnecting switch combined floodgate grounding switch tripping state, it is possible to achieve other
Two-phase is in disconnecting switch separating brake earthed switch "on" position；And after this mutually completes industrial frequency withstand voltage experiment, can directly it lead to
Overregulate isolation earthed switch components cause the second phase be in disconnecting switch combined floodgate and grounding switch tripping state, and other two
Mutually in disconnecting switch separating brake and earthed switch "on" position, the like until completing three-phase test.Whole process does not have to back
Receive the SF6 gases in SF6 gas tank body components and vacuumize, shorten the test period, also greatly improve operating efficiency and reduction
Cost of labor.
Connecting hole is provided among the connecting plate 2A, and three methods are evenly equipped with the connecting plate 2A bottom surfaces around connecting hole
Blue formula contact, the connecting hole of the connecting plate is connected with the electric conductor lower end 21 of single-phase insulating basin 2, flange form contact then with every
Leave the upper end of the first base 512 connection for closing movable contact block component 51.
As shown in Figure 13,14, described outlet casing tube component includes outlet terminal 11, outlet casing tube 12, outlet contact base
14th, rod-shaped conductor 13, the rod-shaped conductor 13 are located in outlet casing tube 12 and penetrate its both ends, and the outlet terminal 11 is located at out
The upper end of thread casing 12 is simultaneously connected with the upper end of rod-shaped conductor 13, and the outlet contact base upper end is connected with rod-shaped conductor lower end, described
Outlet contact base lower end is connected to the electric conductor upper end 22 of single-phase insulating basin 2.
In use, the high-voltage line of power frequency high voltage generating loop device is connected with outlet terminal, three phase isolated basin is connected to
On the three-phase of three-phase combined type type high pressure GIS cable termination outlet products, then rotate clockwise one of which isolation earthed switch
The rocking handle of component so that group isolation earthed switch component be in disconnecting switch combined floodgate and grounding switch tripping state, and inverse time
Pin rotate rotate other two groups of isolation earthed switch component rocking handle cause other two groups in disconnecting switch separating brake and be grounded out
Close "on" position, you can industrial frequency withstand voltage experiment is mutually carried out to this；Then it is resistance to power frequency to be carried out to other two-phases using same method
Pressure experiment.Whole process need not reclaim SF6 gases in outlet casing tube and and vacuumize, while can ensure that other two-phases connect safely
Ground.
Claims (8)
1. a kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS, it is characterized in that：Including one by outlet casing tube
What component, single-phase insulating basin, tank body and three phase isolated basin assembled from top to bottom fills SF6 gas tank body components；It is described
Be provided with tank body three isolation earthed switch component, electric conductor upper end and the outlet casing tube component electricity of the single-phase insulating basin
Connection, top surface of the electric conductor lower end then with a connecting plate be connecteds, three isolate the upper end of earthed switch component be fixedly connected on institute
State the three-phase electric conductor that connecting plate bottom surface upper and lower end then connects three phase isolated basin respectively.
2. the industrial frequency withstand voltage experimental rig according to claim 1 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
State isolation earthed switch component by disconnecting switch movable contact block component, disconnecting switch moving contact operating mechanism, fixed contact pedestal component
Formed with moving contact of grounding switch holder assembly.
3. the industrial frequency withstand voltage experimental rig according to claim 2 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
The disconnecting switch movable contact block component stated is：The first base placed vertically, the first moving contact that can be moved up and down is provided with it,
The upper end of first base is connected with described connecting plate bottom surface.
4. the industrial frequency withstand voltage experimental rig according to claim 3 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
The disconnecting switch moving contact operating mechanism stated is：One is located at the horizontal base beside first base, rotatable twelve Earthly Branches in it
Feathering axis is held, the insulating bar of rotary shaft front end one is fixed with a little gear, and the gear is with being fixed on moving contact
On rack engagement, rotation shaft rear end stretches out tank body and is simultaneously fixed with first gear and operation rocking handle, and base is fixed on tank body.
5. the industrial frequency withstand voltage experimental rig according to claim 4 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
The fixed contact pedestal component stated is：One is located at the stationary contact below the first base that the disconnecting switch movable contact block component is placed vertically
Headstock, its upper end axially adjacent to disconnecting switch movable contact block component and side, be respectively equipped with the first moving contact sets of holes and
Second moving contact sets of holes, are provided with the cylindrical static contact of earthed switch in the second moving contact sets of holes, under fixed contact pedestal component
End is connected with a phase electric conductor of three phase isolated basin.
6. the industrial frequency withstand voltage experimental rig according to claim 5 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
Stating moving contact of grounding switch holder assembly is：One is located at the horizontal the second header beside the fixed contact pedestal component, and it is interior rotatable
But it is supported with a T-shaped tooth screw rod with can not moving forward and backward and one can moves forward and backward but the not rotatable moving contact of tubulose second,
The rear end of the moving contact of tubulose second is fixed with a T-shaped tooth nut and coordinated with the T-shaped tooth screw rod；The described moving contact of tubulose second
The cylindrical static contact in described fixed contact pedestal component the second moving contact sets of holes is correspond to, described T-shaped tooth spiro rod rear end is stretched
Go out tank body and be fixed with second gear, second gear engages with described disconnecting switch moving contact operating mechanism first gear.
7. the industrial frequency withstand voltage experimental rig according to claim 6 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
State and connecting hole is provided among connecting plate, and three flange form contacts are evenly equipped with the connecting plate bottom surface around connecting hole, it is described
The connecting hole of connecting plate is connected with the electric conductor lower end of single-phase insulating basin, flange form contact then with disconnecting switch movable contact block group
The first base upper end connection of part.
8. the industrial frequency withstand voltage experimental rig according to claim 2 for three-phase combined type type high pressure GIS, it is characterized in that：Institute
The outlet casing tube component stated includes outlet terminal, outlet casing tube, outlet contact base, rod-shaped conductor, and the rod-shaped conductor is located at
In thread casing and penetrate its both ends, the outlet terminal is located at outlet casing tube upper end and is connected with rod-shaped conductor upper end, it is described go out
Line contact base upper end is connected with rod-shaped conductor lower end, and the outlet contact base lower end is connected on the electric conductor of single-phase insulating basin
End.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216696.6A CN104865505B (en) | 2015-04-30 | 2015-04-30 | A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510216696.6A CN104865505B (en) | 2015-04-30 | 2015-04-30 | A kind of industrial frequency withstand voltage experimental rig for three-phase combined type type high pressure GIS |
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| CN104865505A CN104865505A (en) | 2015-08-26 |
| CN104865505B true CN104865505B (en) | 2018-03-06 |
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