CN206931916U - Vacuum switch for inflatable high-voltage switchgear - Google Patents
Vacuum switch for inflatable high-voltage switchgear Download PDFInfo
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- CN206931916U CN206931916U CN201720752762.6U CN201720752762U CN206931916U CN 206931916 U CN206931916 U CN 206931916U CN 201720752762 U CN201720752762 U CN 201720752762U CN 206931916 U CN206931916 U CN 206931916U
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Abstract
The utility model discloses a kind of vacuum switch for inflatable high-voltage switchgear, including three Open Side Down spaced tubbiness insulating sleeves and two pieces of insulation boards being arranged at left and right sides of three insulating sleeves, the insulating sleeve inner chamber is used to install vacuum interrupter, it is respectively and fixedly installed at left and right sides of the lower end of each insulating sleeve on corresponding insulation board, each vacuum interrupter is corresponded between two pieces of insulation boards to be mounted on the transmission bracket for supporting power transmission shaft and drive the transmission component for realizing vacuum interrupter moving conductive rod division action by power transmission shaft, support of the utility model using insulating sleeve as vacuum interrupter, the support member of main bus-bar is also served as simultaneously, the structure causes switch gear room's ceiling height to reduce, so that the height reduction of switch cubicle, reduce the volume of switch cubicle.Reduce connection bus simultaneously, make branch's major loop of main bus-bar connection vacuum interrupter very short, loop resistance very little, reduce busbar and have a common boundary face, saved material, improve the reliability of product.
Description
Technical field
It the utility model is related to high-voltage switch gear of the AC voltage range in 3-40.5KV, and in particular to one kind is used for inflatable
The vacuum switch of high-tension switch cabinet.
Background technology
In power system, it is desirable to which high pressure component must endure as the experiment electricity of several times higher than actual normal operating voltage
Pressure, referred to as withstanding voltage, this test voltage are the dielectric levels for assessing component in short-term, if meet longtime running
Requirement, in 10kV voltage class, withstanding voltage is 42kV (virtual value) in short-term, and the time is one minute, while requires indoor
Surface insulation distance, organic media are not less than 240 millimeters to the high pressure of type product over the ground, and inorganic medium is not less than 100 millimeters；(OK
Industry is logical to be known) high pressure component is encapsulated using insulating polymeric material to reduce volume in switchette cabinet at present, use
Insulating materials is more, could meet insulating requirements.
Patent No. CN104517775A《Solid insulation switch》, patent No. CN101340066A《Solid insulated fully-closed ring
Net cabinet》A kind of Insulating frame being molded using insulating polymeric material is described to be used to fix vacuum interrupter of vacuum switch etc.
High voltage parts and part actuating parts, the switching technique described by the two patents have used many insulating materials,
It can guarantee that the dielectric level of the switch cubicle of small size；But insulating materials use is more, by insulating materials trigger fault rate just
It is higher, while do not meet the requirement of environmental protection yet.
Utility model content
The purpose of this utility model is overcome the deficiencies in the prior art, there is provided one kind is simple in construction, can effectively reduce out
The height of cabinet is closed, so as to reduce the vacuum switch for inflatable high-voltage switchgear of the volume of switch cubicle.
According to a kind of vacuum switch for inflatable high-voltage switchgear of the present utility model, including three between Open Side Down
Every the tubbiness insulating sleeve and two pieces of insulation boards being arranged at left and right sides of three insulating sleeves, the insulating sleeve of setting
Inner chamber is used to install vacuum interrupter, is respectively and fixedly installed to insulate accordingly at left and right sides of the lower end of each insulating sleeve
On plate, each vacuum interrupter is corresponded between two pieces of insulation boards and is mounted on transmission bracket for supporting power transmission shaft
The transmission component for realizing that the division of vacuum interrupter moving conductive rod acts is driven with by power transmission shaft.
The utility model also has following additional technical feature：
The upper end of each insulating sleeve is located at the main bus-bar room of switch cubicle, lower end and is located at the switch gear room of switch cubicle, often
The center section of one insulating sleeve be formed with one coordinate with switch gear room's top plate switch gear room and main bus-bar room formed it is close
Insulate the ring flange from cooperation, each outside of insulating sleeve lower end two be symmetrically respectively provided with one be used for be arranged on it is corresponding exhausted
The connection boss of listrium, the upper end roof of each insulating sleeve have issued connection through hole, the interior company of being provided with of connection through hole
Connected components, the lower end of the connection component are used for the static side for connecting support vacuum interrupter, and the connection component stretches out connection through hole
Extension be used for connect support main bus-bar.
The lower end of each vacuum interrupter is provided with insulating protective cover, and each insulating protective cover is by corresponding transmission
Component, corresponding section transmission axle, corresponding section transmission support are wrapped in inside it, and each insulating protective cover is before and after
Direction is provided with the through hole for allowing the power transmission shaft to pass through, and being respectively arranged on the left side and the right side for each insulating protective cover allows to pass
The stretching hole that dynamic support leg stretches out.
The upper end of each insulating protective cover is formed with a bulge loop, and the bulge loop is wrapped in corresponding vacuum interrupter
Lower end periphery, the left and right sides of each insulating protective cover is provided with annular projection along corresponding hole periphery of stretching out respectively, each
Flexible insulation pad is provided with the annular projection, the thickness of the flexible insulation pad is slightly larger than the height of annular projection, so as to institute
State transmission bracket leg be fixed on corresponding insulation board after, between the flexible insulation pad and corresponding insulation board formed compress
Coordinate, the flexible insulation pad is provided with the through hole for allowing gear frame leg to stretch out, and the insulating protective cover is by two semi-insulating shells
Body forms.
Deep trouth is formed with one of them semi-insulating housing in described two semi-insulating housings, on another semi-insulating housing
Corresponding be formed with stretches into the inserted sheet that deep trouth forms grafting cooperation.
Each ring flange is rectangular in terms of overlook direction, and the front and rear sides of each ring flange lower end are separately installed with soft
Property insulating barrier, the sides adjacent of adjacent ring flange shares a flexible insulation dividing plate, each flexible insulation dividing plate or so
Both sides are respectively equipped with the strip through-hole for allowing corresponding insulation board to pass through.
The front and rear sides of the lower end of each ring flange are equipped with cross recess and perpendicular groove per side, each flexible insulation every
Plate forms the perpendicular projection of the raised and pluggable perpendicular groove of horizontal stroke of pluggable cross recess respectively.
The sectional area of the insulation board is slightly larger than the sectional area of the strip through-hole, and the upper and lower ends of the strip through-hole are cut
Face semicircular in shape.
The seal isolation of switch gear room and main bus-bar room, institute are formed between switch gear room's top plate and ring flange by seal
Stating seal includes sealing ring of the opening towards inner section in inverted " u "-shaped, and the both ends of the sealing ring have been integrally formed section and have been in
Circular two sealing rings up and down, corresponding two sealing rings up and down are respectively arranged with two pieces of ring-type pressing plates up and down, it is described on
Sealing ring is between top board and switch gear room's top plate, and the lower seal is between lower platen and ring flange upper surface, institute
State between top board and switch gear room's top plate circumferentially by being bolted together on multiple, between the lower platen and ring flange
Circumferentially by being bolted together under multiple, the upper sealing ring is provided with an extension, and the extension is through switch ceiling
After plate, it is bent to form wraps bolt laterally, the end of the extension acts against the upper surface of switch gear room's top plate.
Be arranged with upper limit set on each upper bolt, upper limit set positioned at top board and switch gear room top plate lower surface it
Between, per being once arranged with lower limit set on bolt, lower limit set between top board and method surface ring flange upper surface it
Between.
The utility model compared with prior art, has advantages below：The utility model goes out insulating sleeve as vacuum
The support of arc chamber, while the support member of main bus-bar is also served as, the structure causes switch gear room's ceiling height to reduce, so that switch
The height reduction of cabinet, reduce the volume of switch cubicle.Reduce connection bus simultaneously, make point of main bus-bar connection vacuum interrupter
Branch major loop is very short, loop resistance very little, reduces busbar and has a common boundary face, saved material, improves the reliability of product.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding to of the present utility model, forms the part of the application,
Do not form to improper restriction of the present utility model, in the accompanying drawings：
Fig. 1 is a kind of structure schematic cross-sectional view of preferred embodiment of the utility model；
Fig. 2 is a kind of partially open dimensional structure diagram of preferred embodiment of the utility model；
Fig. 3 is the structural representation of insulating protective cover in Fig. 1；
Fig. 4 is the schematic cross-sectional view of insulating protective cover；
Fig. 5 is enlarged diagram at A in Fig. 1；
Fig. 6 is the structural representation that arc-chutes are connected with main bus-bar in the prior art；
Fig. 7 is the structural representation of Fig. 1 middle sleeves；
Fig. 8 is the dimensional structure diagram of the new another preferred embodiment of this reality；
Fig. 9 is Fig. 8 schematic cross-sectional view.
Figure 10 is the fit structure schematic diagram of ring flange and flexible insulation dividing plate in Fig. 8.
Figure 11 is the dimensional structure diagram of flexible insulation dividing plate in Fig. 8.
Embodiment
The utility model is described in detail below in conjunction with accompanying drawing and specific embodiment, herein signal of the present utility model
Property embodiment and explanation be used for explaining the utility model, but be not intended as to restriction of the present utility model.
Embodiment：
As shown in Fig. 1~7, a kind of a kind of excellent of vacuum switch for inflatable high-voltage switchgear of the utility model is shown
Select embodiment, including three Open Side Down spaced tubbiness insulating sleeves 1 and be arranged on described three insulating sleeves or so
Two pieces of insulation boards 2 of both sides, the insulating sleeve inner chamber are used to install vacuum interrupter 3, the lower end of each insulating sleeve
The left and right sides is respectively and fixedly installed on corresponding insulation board, and each vacuum interrupter is corresponded between two pieces of insulation boards
It is mounted on the transmission bracket 5 for supporting power transmission shaft 4 and is driven by power transmission shaft to realize that vacuum interrupter moving conductive rod division is moved
The transmission component 6 of work.The upper end of each insulating sleeve is located at the main bus-bar room 7 of switch cubicle, lower end and is located at opening for switch cubicle
Room 8 is closed, the center section of each insulating sleeve is formed with one and coordinated with switch gear room's top plate 16 by switch gear room and main mother
Line room forms the ring flange 9 that seal isolation coordinates, and each outside of insulating sleeve lower end two is symmetrically respectively provided with one and is used to pacify
Mounted in the connection boss 10 of corresponding insulation board, the upper end roof of each insulating sleeve has issued connection through hole 11, described
Connection component 12 is provided with connection through hole, the lower end of the connection component is used for the static side for connecting support vacuum interrupter, the company
The extension that connected components stretch out connection through hole is used to connect support main bus-bar 17.Due to using insulating sleeve as vacuum interrupter
Support, while the support member of main bus-bar is also served as, therefore the structure causes switch gear room's ceiling height to reduce, so that switch
The height reduction of cabinet, reduce the volume of switch cubicle.Reduce connection bus simultaneously, make point of main bus-bar connection vacuum interrupter
Branch major loop is very short, loop resistance very little, reduces busbar and has a common boundary face, saved material, improves the reliability of product.
As the contrast with present technology, referring to Fig. 6, the structural representation that prior art arc-chutes are connected with main bus-bar is shown
Figure, in the prior art, including for supporting the metal mounting bracket 100 of arc-chutes, the connection of metal mounting bracket 100 downside connects
Two pieces of insulation boards are connect, switch cubicle is separated into switch gear room 103 and main bus-bar room 104 by switch gear room's top plate 105, and vacuum interrupter is located at
Switch gear room, the static side of vacuum interrupter are connected by a connection bus 102 with the lower end of sleeve pipe 101, the upper end of sleeve pipe 101 and main mother
Line connects, and the support of the structure for vacuum arc-chutes separates with connecting the sleeve pipe of main bus-bar, due to this separation so that zero
Part is more, and this scheme needs single sleeve pipe to be connected with top bus bar, drawn high the height of switch cubicle, the switch cubicle of increase
Volume, while connected between sleeve pipe 101 and vacuum interrupter using connection bus 102, add busbar and have a common boundary face, reduce production
The reliability of product.Insulating support of the present utility model both can be as the support of vacuum interrupter, while also served as main bus-bar
Support member, reduce parts, reduce connection bus so that switch gear room's ceiling height reduces, so that the height of switch cubicle
Degree reduces, and reduces the volume of switch cubicle.
In the present embodiment, switch gear room and main mother are formed by seal between switch gear room's top plate 16 and ring flange 9
The seal isolation of line room, the seal include sealing ring 160 of the opening towards inner section in inverted " u "-shaped, the both ends of the sealing ring
Rounded two sealing rings 161 up and down in section are integrally formed, corresponding two sealing rings up and down are respectively arranged with
Upper and lower two pieces of ring-type pressing plates 162,163, the upper sealing ring is between top board and switch gear room's top plate, the lower seal position
Between lower platen and ring flange upper surface, circumferentially pass through six upper bolts 164 between the top board and switch gear room's top plate
Link together, circumferentially linked together between the lower platen and ring flange by six lower bolts 165, the upper sealing
Circle is provided with an extension 166, after the extension passes through switch gear room's top plate, is bent to form wraps bolt laterally, the extension
The end of section acts against the upper surface of switch gear room's top plate, and its sealing effectiveness is preferable, can effectively by main bus-bar room and switch gear room every
From.Upper limit set 167 is arranged with each upper bolt, the upper limit is covered between top board and switch gear room top plate lower surface,
Per be once arranged with bolt lower limit set 168, the lower limit set between top board and method surface ring flange upper surface it
Between.The main purpose for setting stop collar up and down is that the depth that the upper bolt of control and lower bolt screw in when mounted is consistent.From
The connection that Fig. 5 can be seen that the seal and switch gear room's top plate and ring flange connects for elastic packing, can play certain position
Put deviation compensation effect.
In the present embodiment, each ring flange is rounded in terms of overlook direction, under each vacuum interrupter
End is provided with insulating protective cover 14, and each insulating protective cover is by corresponding transmission component, corresponding section transmission axle, corresponding
Section transmission support is wrapped in inside it, and each insulating protective cover is provided with along the longitudinal direction allows what the power transmission shaft passed through
Through hole 140, each insulating protective cover are respectively arranged on the left side and the right side the stretching hole for allowing transmission bracket leg 50 to stretch out
141.The transmission bracket leg 50 is bolted to connection with insulation board, and described transmission component is prior art, including
Connecting lever, screw rod, spring, are no longer narrated here.The moved end of the structure for vacuum arc-chutes and high voltage part is in lower part
Metallic element be wrapped in insulating protective cover 14 so that sufficiently high dielectric level is formed in limited space.
In the present embodiment, the upper end of each insulating protective cover is formed with a bulge loop 142, and the bulge loop is wrapped in phase
The lower end periphery for the vacuum interrupter answered, the structure further increase the dielectric level of vacuum switch；Each insulation is protected
The left and right sides of shield is provided with annular projection 143 along corresponding hole periphery of stretching out respectively, is provided with each annular projection soft
Property felt pad 144, the thickness of the flexible insulation pad is slightly larger than the height of annular projection, consolidates so as to the leg of the transmission bracket
After being scheduled on corresponding insulation board, compression fit, the flexible insulation are formed between the flexible insulation pad and corresponding insulation board
Pad is provided with the through hole 145 for allowing gear frame leg to stretch out, and compressed flexible felt pad 144 makes insulation board 2 and flexible insulation pad 144
Contact is produced between contact surface between the contact surface of flexible insulation pad 144 and insulation shell 146, this pressure makes contact
The dielectric level in face improves, and thus improves the insulation water of the transmission bracket leg 50 in two pieces of connecting portions of insulation board 2 over the ground
It is flat.The insulating protective cover is made up of two semi-insulating housings 146, one of them semi-insulating shell in described two semi-insulating housings
Deep trouth 147 is formed with body, is correspondingly formed with another semi-insulating housing and stretches into the inserted sheet that deep trouth 147 forms grafting cooperation
148, the purpose one for designing deep trouth and inserted sheet is so that two semi-insulating housings are joined together to form whole insulating protective cover, two
It is the cooperation of deeper groove and longer inserted sheet, can further improves the insulation effect of insulating protective cover.
Referring to Fig. 8 to Figure 11, the utility model another kind preferred embodiment is shown, difference from Example 1 is,
Each ring flange is rectangular in terms of overlook direction, does not use insulation protection cover structure, but before each ring flange lower end
Both sides are separately installed with flexible insulation dividing plate 15 afterwards, and the sides adjacent of adjacent ring flange shares a flexible insulation dividing plate,
Each flexible insulation dividing plate is respectively arranged on the left side and the right side the strip through-hole 150 for allowing corresponding insulation board to pass through.Each method
The front and rear sides of the lower end of blue disk are equipped with cross recess 90 and perpendicular groove 91 per side, and each flexible insulation dividing plate forms can insert respectively
Enter the horizontal stroke projection 151 of cross recess and can be inserted into and erect perpendicular raised the 152 of groove.Such structure can form foot in limited space
Enough high dielectric levels.
In the present embodiment, the sectional area of the insulation board is slightly larger than the sectional area of the strip through-hole, and the bar shaped is led to
The upper and lower ends section semicircular in shape in hole.Insulation board 2 passes through strip through-hole 150, deforms strip through-hole 150, this deformation energy
The position of contact is set to form pressure, so that the dielectric level of contact site is higher than the surface for being not in contact with pressure, it is semicircular
End design is the rock deformation pressure uniformity at two positions for making cooperation, and insulation board 2 is by using flexible insulating dividing plate 15
Increase dielectric level.
The technical scheme provided above the utility model embodiment is described in detail, used herein specifically
Individual example is set forth to the principle and embodiment of the utility model embodiment, and the explanation of above example is only applicable to help
Assistant solves the principle of the utility model embodiment；Meanwhile for those of ordinary skill in the art, implement according to the utility model
Example, the there will be changes in embodiment and application, in summary, this specification content should not be construed as
To limitation of the present utility model.
Claims (10)
1. a kind of vacuum switch for inflatable high-voltage switchgear, it is characterised in that Open Side Down is spaced including three
Tubbiness insulating sleeve (1) and two pieces of insulation boards (2) being arranged at left and right sides of three insulating sleeves, in the insulating sleeve
Chamber is used to install vacuum interrupter (3), is respectively and fixedly installed at left and right sides of the lower end of each insulating sleeve corresponding exhausted
On listrium, each vacuum interrupter is corresponded between two pieces of insulation boards and is mounted on being used for the biography for supporting power transmission shaft (4)
Dynamic support (5) and the transmission component (6) that vacuum interrupter moving conductive rod division action is realized by power transmission shaft drive.
2. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 1, it is characterised in that：Each insulating sleeve
Upper end be located at the main bus-bar room (7) of switch cubicle, lower end is located at the switch gear room (8) of switch cubicle, in each insulating sleeve
Between be partly formed with one and coordinate with switch gear room's top plate (16) switch gear room and main bus-bar room are formed into the method that seal isolation coordinates
Blue disk (9), each outside of the insulating sleeve lower end two are symmetrically respectively provided with one and are used for connection installed in corresponding insulation board
Boss (10), the upper end roof of each insulating sleeve have issued connection through hole (11), connection are provided with the connection through hole
Component (12), the lower end of the connection component are used for the static side for connecting support vacuum interrupter, and it is logical that the connection component stretches out connection
The extension in hole is used to connect support main bus-bar (17).
3. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 2, it is characterised in that：Each vacuum extinction
The lower end of room is provided with insulating protective cover (14), and each insulating protective cover is by corresponding transmission component, corresponding section transmission
Axle, corresponding section transmission support are wrapped in inside it, and each insulating protective cover is provided with along the longitudinal direction allows the biography
The through hole (140) that moving axis passes through, being respectively arranged on the left side and the right side for each insulating protective cover allow transmission bracket leg
(50) the stretching hole (141) stretched out.
4. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 3, it is characterised in that：Each insulation protection
The upper end of cover is formed with a bulge loop (142), and the bulge loop is wrapped in the lower end periphery of corresponding vacuum interrupter, each described exhausted
The left and right sides of edge protective cover is provided with annular projection (143) along corresponding hole periphery of stretching out respectively, in each annular projection
Provided with flexible insulation pad (144), the thickness of the flexible insulation pad is slightly larger than the height of annular projection, so as to the transmission bracket
Leg be fixed on corresponding insulation board after, form compression fit between the flexible insulation pad and corresponding insulation board, it is described
Flexible insulation pad is provided with the through hole (145) for allowing gear frame leg to stretch out, and the insulating protective cover is by two semi-insulating housings
(146) form.
5. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 4, it is characterised in that：Described two semi-insulating shells
Deep trouth (147) is formed with the semi-insulating housing of one of them in body, is correspondingly formed with another semi-insulating housing and stretches into deep trouth
(147) inserted sheet (148) that grafting coordinates is formed.
6. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 2, it is characterised in that each in terms of overlook direction
The ring flange is rectangular, and the front and rear sides of each ring flange lower end are separately installed with flexible insulation dividing plate (15), adjacent method
The sides adjacent of blue disk shares a flexible insulation dividing plate, and it is corresponding that each flexible insulation dividing plate is respectively arranged on the left side and the right side permission
The strip through-hole (150) that passes through of insulation board.
7. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 6, it is characterised in that：Each ring flange
The front and rear sides of lower end are equipped with cross recess (90) and perpendicular groove (91) per side, and each flexible insulation dividing plate forms pluggable respectively
The horizontal stroke raised (151) of cross recess and perpendicular raised (152) that can be inserted into perpendicular groove.
8. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 6, it is characterised in that：The section of the insulation board
Product is slightly larger than the sectional area of the strip through-hole, the upper and lower ends section semicircular in shape of the strip through-hole.
9. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 2, it is characterised in that：Switch gear room's top plate
(16) seal isolation of switch gear room and main bus-bar room is formed by seal between ring flange (9), the seal includes opening
Mouthful be in the sealing ring (160) of inverted " u "-shaped towards inner section, the both ends of the sealing ring be integrally formed section it is rounded up and down
Two sealing rings (161), corresponding two sealing rings up and down are respectively arranged with two pieces of ring-type pressing plates (162,163) up and down, institute
Sealing ring is stated between top board and switch gear room's top plate, the lower seal be located at lower platen and ring flange upper surface it
Between, circumferentially linked together between the top board and switch gear room's top plate by multiple upper bolts (164), the lower platen with
Circumferentially being linked together between ring flange by multiple lower bolts (165), the upper sealing ring is provided with an extension (166),
After the extension passes through switch gear room's top plate, it is bent to form wraps bolt laterally, the end of the extension acts against switch
The upper surface of ceiling plate.
10. the vacuum switch of inflatable high-voltage switchgear as claimed in claim 9, it is characterised in that：Covered on each upper bolt
Provided with upper limit set (167), the upper limit is covered between top board and switch gear room top plate lower surface, every to be once arranged on bolt
There is lower limit set (168), lower limit set is between top board and method surface between ring flange upper surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720752762.6U CN206931916U (en) | 2017-06-27 | 2017-06-27 | Vacuum switch for inflatable high-voltage switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720752762.6U CN206931916U (en) | 2017-06-27 | 2017-06-27 | Vacuum switch for inflatable high-voltage switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206931916U true CN206931916U (en) | 2018-01-26 |
Family
ID=61352882
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720752762.6U Active CN206931916U (en) | 2017-06-27 | 2017-06-27 | Vacuum switch for inflatable high-voltage switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206931916U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970271A (en) * | 2019-11-30 | 2020-04-07 | 河南平高通用电气有限公司 | Circuit breaker and gas insulated switchgear using same |
| CN110970272A (en) * | 2019-11-30 | 2020-04-07 | 河南平高通用电气有限公司 | Circuit breaker and gas insulated switchgear using same |
| CN115986612A (en) * | 2023-03-21 | 2023-04-18 | 四川电器集团中低压智能配电有限公司 | Fixed type switch cabinet |
-
2017
- 2017-06-27 CN CN201720752762.6U patent/CN206931916U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110970271A (en) * | 2019-11-30 | 2020-04-07 | 河南平高通用电气有限公司 | Circuit breaker and gas insulated switchgear using same |
| CN110970272A (en) * | 2019-11-30 | 2020-04-07 | 河南平高通用电气有限公司 | Circuit breaker and gas insulated switchgear using same |
| CN110970272B (en) * | 2019-11-30 | 2021-08-06 | 河南平高通用电气有限公司 | Circuit breaker and gas insulated switchgear using same |
| CN115986612A (en) * | 2023-03-21 | 2023-04-18 | 四川电器集团中低压智能配电有限公司 | Fixed type switch cabinet |
| CN115986612B (en) * | 2023-03-21 | 2023-06-13 | 四川电器集团中低压智能配电有限公司 | Fixed switch cabinet |
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