CN110379664B - Improved GN30 isolating switch - Google Patents
Improved GN30 isolating switch Download PDFInfo
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- CN110379664B CN110379664B CN201910650535.6A CN201910650535A CN110379664B CN 110379664 B CN110379664 B CN 110379664B CN 201910650535 A CN201910650535 A CN 201910650535A CN 110379664 B CN110379664 B CN 110379664B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/023—Base and stationary contacts mounted thereon
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
- H01H31/00—Air-break switches for high tension without arc-extinguishing or arc-preventing means
- H01H31/02—Details
- H01H31/026—Movable parts and contacts mounted thereon
Abstract
The invention discloses an improved GN30 isolating switch, which comprises a supporting frame, an insulating seat, a plurality of moving contacts and a plurality of static contacts, wherein the insulating seat is provided with a plurality of insulating seats, the insulating seats are uniformly fixed at the top and the bottom of the supporting frame at equal intervals, the moving contacts and the static contacts are provided with a plurality of moving contacts and are respectively fixed on the insulating seats, the moving contacts and the static contacts are bent and formed by using red copper plates (T2) with the purity of 99.99 percent, the through-current capacity of a conductor is increased, so that the heat generated during the operation of the switch is reduced, the temperature rise is reduced, silver plating is carried out on the surfaces of the moving contacts and the static contacts, the thickness of a silver plated layer is not less than 20 mu m, and a heat radiating device made of a material with good heat conduction performance is selected as the conductor.
Description
Technical Field
The invention relates to the technical field of GN30 isolating switches, in particular to an improved GN30 isolating switch.
Background
The high-voltage isolating switch is one of important electrical equipment in a power system, and mainly has the main functions of switching on/off high-voltage equipment and circuits in power failure and completing a switching operation task by matching with a circuit breaker. The high-voltage isolating switch can conduct electricity and transmit electric energy in a closing state, and mainly plays a role in safety isolation in an opening state. In recent years, with the development of economy and the rapid increase of power load, the current-carrying load of the isolating switch is continuously increased.
GN30 isolator belongs to indoor rotary high-voltage isolator, it has the advantages of compact structure, convenient installation, labor saving operation, etc, it is very common in power system application in recent years, GN30 isolator is used as heavy current isolator, and widely used in transformer substation 10kV incoming line switch cabinet or outgoing line switch cabinet, in recent years, with the increasing of power network load, the original GN30-12/3150/4000 series rotary isolator obviously increases temperature rise when the running current is larger and close to 80% of rated current due to the structural particularity, exceeding the temperature rise requirement allowed by national standard, the equipment running risk is obvious, the existing mechanism box is affected by rain moisture, etc, the inside and outside of the mechanism box is seriously corroded, in operation, the moving contact is combined with and separated from the contact seat on the frame, the contact seat contacts with the moving contact after closing, after the isolating switch is switched for many times, abrasion can occur between a contact seat and a contact surface of a moving contact, and the working performance of the isolating switch is directly influenced, so that an improved GN30 isolating switch is provided.
Disclosure of Invention
It is an object of the present invention to provide an improved GN30 isolator switch to address the problems set forth in the background above.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides an improved generation GN30 isolator, includes support frame, insulator, moving contact and static contact, the insulator is equipped with a plurality ofly, and the equidistance is all evenly fixed at support frame top and bottom, moving contact and static contact all are equipped with a plurality ofly, and are fixed with a plurality of insulators respectively.
Preferably, quiet contact comprises quiet connecting seat, backup pad, U-shaped connecting plate, bolt, connecting spring and screw cap, quiet connecting seat is installed in insulating seat, the backup pad is equipped with two, and the symmetric distribution fixes in quiet connecting seat both sides, the U-shaped connecting plate is equipped with two, and the symmetric distribution fixes at two backup pad tops, the bolt removes to run through two U-shaped connecting plates in proper order to with screw cap threaded connection, the connecting spring cover is kept away from the screw cap one end outside at the bolt, and the connecting spring both ends are fixed with U-shaped connecting plate and bolt one end respectively.
Preferably, the cushion block is sleeved on the outer side of one end, close to the threaded cap, of the plug pin, and the outer side of the cushion block is in contact with the U-shaped connecting plate and the threaded cap respectively.
Preferably, the movable contact comprises a movable connecting seat, two clamping plates, two clamping pieces, a T-shaped connecting plate and two contact plates, the movable connecting seat is fixedly mounted at the top of the insulating seat through screws and is of an L-shaped plate structure, the two clamping plates are symmetrically distributed and fixed at one end of the movable connecting seat, one end of the movable connecting seat is provided with a connecting port, the T-shaped connecting plate is clamped with the connecting port, one end of each contact plate is fixed with the T-shaped connecting plate, the other end of each contact plate is connected with the corresponding static contact, and the two clamping pieces are symmetrically distributed and fixed at one end of the movable connecting seat.
Preferably, two clamping plates are symmetrically fixed to one end, away from the touch plate, of the T-shaped connecting plate, limiting holes are formed in the two clamping plates, a bayonet is formed in the clamping plate, and the clamping plates are clamped with the bayonet.
Preferably, the joint spare comprises sliding sleeve, traveller, U-shaped fixed plate, limiting plate and joint spring, sliding sleeve one end slides and runs through and moves the connecting seat to with spacing hole joint, the sliding sleeve is kept away from spacing hole one end and is slided to cup joint in the traveller outside, and the traveller keeps away from sliding sleeve one end and fixed with the U-shaped fixed plate, the U-shaped fixed plate is fixed with moving the connecting seat outside, the limiting plate is fixed and is kept away from spacing hole one end outside at the sliding sleeve, the joint spring housing is in the traveller outside, and joint spring both ends are fixed with U-shaped fixed plate and limiting plate respectively.
Preferably, one end, away from the sliding column, of the sliding sleeve is of an inclined plane structure, and the bottom of the clamping plate is of an inclined plane structure.
Preferably, the outer side of one end, far away from the threaded cap, of the bolt is carved with anti-skid grains.
Preferably, the moving contact and the static contact are both formed by bending copper plates (T2) with the purity of 99.99%, and the surfaces of the moving contact and the static contact are subjected to silver plating treatment.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention changes the moving contact and the static contact and the like into the bending forming by adopting the red copper plate (T2) with the purity of 99.99 percent, increases the current capacity of the conductor, thereby reducing the heat generated during the operation of the switch and reducing the temperature rise, and the surfaces of the moving contact and the static contact are plated with silver, the thickness of the silver plating layer is not less than 20 mu m, and the heat dissipation device which is made of the material with good heat conduction performance as the conductor is selected, thereby ensuring that the temperature rise of the conductor (the red copper piece) meets the requirements specified by the standard.
2. According to the invention, the contact plate on the moving contact is changed into the detachable structure, so that when the contact plate and the U-shaped connecting plate are abraded in the operation process, the contact plate is directly detached and replaced by a new contact plate, the whole moving contact does not need to be replaced, the replacement step is more convenient and the cost is saved.
Drawings
FIG. 1 is a schematic view of the overall appearance structure of the present invention;
FIG. 2 is a schematic view of the connection between the moving contact and the stationary contact and the insulating base according to the present invention;
FIG. 3 is a schematic view of the connection between the moving contact and the stationary contact according to the present invention;
FIG. 4 is a schematic view of a clip member according to the present invention;
FIG. 5 is an enlarged view taken at A in FIG. 2;
fig. 6 is an enlarged view of fig. 4 at B.
In the figure: 1-a support frame; 2-an insulating base; 3-moving contact; 4, static contact; 5-a stationary connecting seat; 6-a support plate; 7-U-shaped connecting plates; 8-a bolt; 9-connecting a spring; 10-a screw cap; 11-a cushion block; 12-a movable connecting seat; 13-a clamping plate; 14-a clip; 15-T-shaped connecting plates; 16-touch panel; 17-connection port; 18-a clamping plate; 19-a limiting hole; 20-bayonet; 21-a sliding sleeve; 22-a strut; 23-U-shaped fixing plates; 24-a limiting plate; 25-snap spring.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-6, an improved GN30 isolating switch is shown, which includes a supporting frame 1, an insulating base 2, a plurality of moving contacts 3 and static contacts 4, wherein the insulating base 2 is uniformly fixed at the top and bottom of the supporting frame 1 at equal intervals, and the moving contacts 3 and the static contacts 4 are respectively fixed to the insulating bases 2.
The bolt 8 is close to the outside cover of 10 one ends of screw cap and has cushion 11, and the cushion 11 outside contacts with U-shaped connecting plate 7 and screw cap 10 respectively, makes the bolt 8 be connected more stably with U-shaped connecting plate 7 through cushion 11, also prevents that screw cap 10 from damaging U-shaped connecting plate 7.
The specific implementation method comprises the following steps: when switching off, through rotating screw cap 10 this moment, make screw cap 10 break away from with bolt 8, simultaneously, take out cushion 11, outwards take out bolt 8 again, make bolt 8 no longer with touch panel 16 joint, then take out touch panel 16 and realize GN30 isolator's switching off, when closing a floodgate on the same principle, place between two U-shaped connecting plates 7 with touch panel 16 one end, insert bolt 8 simultaneously, make bolt 8 one end run through another U-shaped connecting plate 7, and sheathe cushion 11 in and tighten screw cap 10 again, realize closing a floodgate.
Referring to fig. 1-6, in the drawings, a movable contact 3 is composed of a movable connecting seat 12, a clamping plate 13, two clamping pieces 14, two T-shaped connecting plates 15 and a contact plate 16, the movable connecting seat 12 is fixed on the top of an insulating seat 2 through screws, the movable connecting seat 12 is of an L-shaped plate structure, the two clamping plates 13 are symmetrically fixed at one end of the movable connecting seat 12, a connecting port 17 is formed at one end of the movable connecting seat 12, the T-shaped connecting plate 15 is clamped with the connecting port 17, one end of the contact plate 16 is fixed with the T-shaped connecting plate 15, the other end of the contact plate is connected with a fixed contact 4, the two clamping pieces 14 are symmetrically fixed at one end of the movable connecting seat 12, and the contact plate 16 can be detached by changing the structure of the movable contact 3, and the damaged contact plate 16 can be directly.
T shape connecting plate 15 is kept away from 16 one end symmetries of touch panel and is fixed with two joint boards 18, and all opens spacing hole 19 in two joint boards 18, it has bayonet socket 20 to open in the cardboard 13, and joint board 18 and bayonet socket 20 joint, through joint board 18 and bayonet socket 20 joint, realizes fixed the joint of T shape connecting plate 15.
The end of the sliding sleeve 21 away from the sliding column 22 is of an inclined plane structure, and the bottom of the clamping plate 18 is of an inclined plane structure, so that the clamping plate 18 and the sliding sleeve 21 can be conveniently connected.
The specific implementation method comprises the following steps: when the GN30 isolating switch is used for a period of time, when the number of switching operations is too many, the number of contact friction times between the contact plate 16 and the U-shaped connecting plate 7 is too many, so that the surface of the contact plate 16 is worn, at the moment, the sliding sleeve 21 is not clamped with the limiting hole 19 by pressing the sliding sleeve 21 away from one end of the sliding column 22, and the T-shaped connecting plate 15 is pulled upwards and pulled out, so that the clamping plate 18 is separated from the bayonet 20 and is not clamped with the bayonet 20, and the detachment of the contact plate 16 is completed, when a new contact plate 16 is installed, the T-shaped connecting plate 15 is inserted into the connecting port 17, and the clamping plate 18 is inserted into the bayonet 20 and is clamped with the bayonet 20, during the insertion process, because the bottom of the clamping plate 18 and the end of the sliding sleeve 21 away from the sliding column 22 are both in inclined plane structures, during the contact of the two inclined planes, the sliding sleeve 21 can move towards one end of, at the moment, elastic force is generated through elastic deformation of the clamping spring 25, the sliding sleeve 21 is pushed to move outwards, so that the sliding sleeve 21 is clamped towards the limiting hole 19, the T-shaped connecting plate 15 is limited and fixed, and the new contact plate 16 is installed.
The outer side of one end of the bolt 8, which is far away from the threaded cap 10, is carved with anti-skid lines, so that the friction force is increased, and the adjustment is more convenient.
The moving contact 3 and the static contact 4 are both formed by bending copper plates (T2) with the purity of 99.99 percent, and the surface of the moving contact and the static contact are subjected to silver plating treatment, the moving contact 3 and the static contact 4 and the like are changed into the forming by bending the copper plates (T2) with the purity of 99.99 percent, so that the through-current capacity of the conductor is increased, the heat generated during the operation of a switch is reduced, the temperature rise is reduced, the silver plating treatment is performed on the surfaces of the moving contact 3 and the static contact 4, the thickness of a silver plating layer is not less than 20 mu m, and a heat dissipation device made of a material with good heat conduction performance is selected as the conductor, so that the temperature rise of.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides an improved generation GN30 isolator, includes support frame (1), insulator (2), moving contact (3) and static contact (4), its characterized in that: the insulation bases (2) are arranged in plurality and are uniformly fixed at the top and the bottom of the support frame (1) at equal intervals, the moving contacts (3) and the static contacts (4) are arranged in plurality and are respectively fixed with the insulation bases (2), the moving contacts (3) are composed of moving connecting bases (12), clamping plates (13), clamping pieces (14), T-shaped connecting plates (15) and touch plates (16), the moving connecting bases (12) are fixedly arranged at the top of the insulation bases (2) through screws, the moving connecting bases (12) are of L-shaped plate structures, the clamping plates (13) are arranged in two numbers and are symmetrically distributed and fixed at one ends of the moving connecting bases (12), one ends of the moving connecting bases (12) are provided with connecting ports (17), the T-shaped connecting plates (15) are clamped with the connecting ports (17), one ends of the touch plates (16) are fixed with the T-shaped connecting plates (15), and the other ends of the touch plates are connected with the static, the clamping piece (14) is provided with two clamping pieces (14), the two clamping pieces are symmetrically distributed and fixed at one end of the movable connecting seat (12), the T-shaped connecting plate (15) is far away from one end of the contact plate (16), two clamping plates (18) are symmetrically fixed at the inner ends of the two clamping plates (18), limiting holes (19) are formed in the two clamping plates (18), bayonets (20) are formed in the clamping plates (13), the clamping plates (18) are clamped with the bayonets (20), the clamping piece (14) is composed of a sliding sleeve (21), a sliding column (22), a U-shaped fixing plate (23), a limiting plate (24) and a clamping spring (25), one end of the sliding sleeve (21) penetrates through the movable connecting seat (12) in a sliding mode and is clamped with the limiting holes (19), one end of the sliding sleeve (21) far away from the limiting holes (19) is sleeved outside the sliding column (22), one end of the sliding column (22) far away from the sliding sleeve (21) is fixed with the U, limiting plate (24) are fixed and are kept away from the one end outside of spacing hole (19) in sliding sleeve (21), joint spring (25) cover is in sliding column (22) outside, and joint spring (25) both ends are fixed with U-shaped fixed plate (23) and limiting plate (24) respectively.
2. An improved GN30 isolation switch as claimed in claim 1, wherein: static contact (4) comprise quiet connecting seat (5), backup pad (6), U-shaped connecting plate (7), bolt (8), connecting spring (9) and screw cap (10), quiet connecting seat (5) are installed in insulating seat (2), backup pad (6) are equipped with two, and the symmetric distribution fixes in quiet connecting seat (5) both sides, U-shaped connecting plate (7) are equipped with two, and the symmetric distribution fixes at two backup pad (6) tops, bolt (8) are removed and are run through two U-shaped connecting plates (7) in proper order to with screw cap (10) threaded connection, connecting spring (9) cover is kept away from screw cap (10) one end outside in bolt (8), and connecting spring (9) both ends are fixed with U-shaped connecting plate (7) and bolt (8) one end respectively.
3. An improved GN30 isolation switch as claimed in claim 2, wherein: the outer side of one end, close to the threaded cap (10), of the bolt (8) is sleeved with a cushion block (11), and the outer side of the cushion block (11) is respectively in contact with the U-shaped connecting plate (7) and the threaded cap (10).
4. An improved GN30 isolation switch as claimed in claim 1, wherein: one end, far away from the sliding column (22), of the sliding sleeve (21) is of an inclined plane structure, and the bottom of the clamping plate (18) is of an inclined plane structure.
5. An improved GN30 isolation switch as claimed in claim 3, wherein: the outer side of one end of the bolt (8) far away from the threaded cap (10) is carved with anti-skid grains.
6. An improved GN30 isolation switch as claimed in claim 1, wherein: the moving contact (3) and the static contact (4) are both formed by bending copper plates (T2) with the purity of 99.99 percent, and the surfaces of the moving contact and the static contact are plated with silver.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650535.6A CN110379664B (en) | 2019-07-18 | 2019-07-18 | Improved GN30 isolating switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910650535.6A CN110379664B (en) | 2019-07-18 | 2019-07-18 | Improved GN30 isolating switch |
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| Publication Number | Publication Date |
|---|---|
| CN110379664A CN110379664A (en) | 2019-10-25 |
| CN110379664B true CN110379664B (en) | 2021-06-15 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910650535.6A Active CN110379664B (en) | 2019-07-18 | 2019-07-18 | Improved GN30 isolating switch |
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| CN (1) | CN110379664B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111725020B (en) * | 2020-06-29 | 2023-04-07 | 浙江福祥瑞特电气有限公司 | High-voltage isolating switch |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205104373U (en) * | 2015-10-26 | 2016-03-23 | 辽宁华隆电力科技股份有限公司 | Outdoor interchange high voltage isolator with sound contact inclined plane |
| CN106611661A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating current high voltage isolating switch with prefabricated static contact width |
| CN207134283U (en) * | 2017-07-27 | 2018-03-23 | 浙江强力控股有限公司 | Indoor high-voltage isolating switch |
| CN208570446U (en) * | 2018-06-19 | 2019-03-01 | 浙江紫光电器有限公司 | A kind of disconnecting switch |
-
2019
- 2019-07-18 CN CN201910650535.6A patent/CN110379664B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN205104373U (en) * | 2015-10-26 | 2016-03-23 | 辽宁华隆电力科技股份有限公司 | Outdoor interchange high voltage isolator with sound contact inclined plane |
| CN106611661A (en) * | 2015-10-26 | 2017-05-03 | 辽宁华隆电力科技股份有限公司 | Outdoor alternating current high voltage isolating switch with prefabricated static contact width |
| CN207134283U (en) * | 2017-07-27 | 2018-03-23 | 浙江强力控股有限公司 | Indoor high-voltage isolating switch |
| CN208570446U (en) * | 2018-06-19 | 2019-03-01 | 浙江紫光电器有限公司 | A kind of disconnecting switch |
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| Publication number | Publication date |
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| CN110379664A (en) | 2019-10-25 |
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