CN209357661U - A kind of overvoltage protection high voltage load disconnecting switch - Google Patents
A kind of overvoltage protection high voltage load disconnecting switch Download PDFInfo
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- CN209357661U CN209357661U CN201820727994.0U CN201820727994U CN209357661U CN 209357661 U CN209357661 U CN 209357661U CN 201820727994 U CN201820727994 U CN 201820727994U CN 209357661 U CN209357661 U CN 209357661U
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Abstract
The utility model discloses a kind of overvoltage protection high voltage load disconnecting switch, including mounting base, outlet pillar, inlet wire pillar, plug-in strip and insulation cylinder, the centre of the installation seating face is to the mounting base sunken inside, and outlet pillar and inlet wire pillar are individually fixed in mounting base two sides, one end of the plug-in strip is with rivet interlacement in outlet pillar top, and it is also connected with outlet binding post, the other end bottom of the plug-in strip is provided with fixture block, the top of the inlet wire pillar is equipped with magnet, and the magnet attracts each other with fixture block, the insulation cylinder is set to installation seating face in 30 °, and the sleeper by the way that the insulation cylinder bottom is arranged in is fixedly connected with mounting base, compared with existing overvoltage protection high voltage load disconnecting switch, with arc extinguishing processing, combined floodgate and disconnected lock can quickly be carried out, and can prevent from shutting off it is single-phase or The advantages that generation of three-phase overvoltage brings damage to power grid.
Description
Technical field
The utility model relates to disconnecting switch fields, are especially a kind of overvoltage protection high voltage load disconnecting switch.
Background technique
In rural area 35kV miniaturization unattended substation, main transformer inlet wire adds the side of fuse protection using on-load switch
Case has obtained universal approval, mostly uses pressure-operated load switch, and disjunction has obvious cut-off point.According to DL/T5119-2000
(small rural unattended substation " 6.5.1 regulation: the side main transformer 35kV, main transformer capacity 6300kVA and with
Under, it is protected using fuse, and cooperate with on-load switch, to achieve the purpose that short circuit current is protected.
It being found by retrieval, the utility model of patent No. CN203983115U discloses a kind of high voltage load disconnecting switch,
Including pedestal, inlet wire insulation column, outlet insulation column, two terminal plates, plug-in strips, the plug-in strip is equipped with locker, institute
It states outlet insulation column and is equipped with the lock-bit plate cooperated with locker, the other side of the terminal plate opposing insulation pillar is fixed
There is at least two tension seat, constituting between the tension seat and terminal plate has clamp chamber, cooperates live conductor on the tension seat
Component, the line pressing component include fastener, pressing plate of the cooperation on tension seat and setting two neighboring tension seat it
Between column, the fastener pass through pressing plate be threadedly coupled with the column.
However, the analysis found that, existing overvoltage protection high voltage load disconnecting switch has the following disadvantages；First,
Arc extinguishing processing is not can be carried out, second, three-phase current becomes two-phase current when short circuit, to generated various during operation of power networks
Overvoltage injury；Third, the speed disconnected of closing a floodgate is slow.
Utility model content
Therefore, in order to solve above-mentioned deficiency, the utility model provides a kind of overvoltage protection high voltage load herein keeps apart
It closes, there is arc extinguishing processing, can quickly carry out combined floodgate and disconnected lock, and single-phase or three-phase overvoltage the generation that can prevent from shutting off is to electricity
Mesh belt is come the advantages that damage.
The utility model is realized in this way a kind of overvoltage protection high voltage load disconnecting switch is constructed, including mounting base,
Outlet pillar, inlet wire pillar, plug-in strip and insulation cylinder, it is described installation seating face centre to the mounting base sunken inside, and
Outlet pillar and inlet wire pillar are individually fixed in mounting base two sides, and one end of the plug-in strip is with rivet interlacement in outlet supporting post top
End, and it is also connected with outlet binding post, the other end bottom of the plug-in strip is provided with fixture block, and the top of the inlet wire pillar is set
There is magnet, and the magnet attracts each other with fixture block, the insulation cylinder is set to installation seating face in 30 °, and passes through setting
It is fixedly connected in the sleeper of the insulation cylinder bottom with mounting base, the side of the inlet wire pillar, which is equipped with, surrounds the inlet wire support ring
Around the second spring of setting, and the bottom end of the second spring is fixedly connected with inlet wire pillar, and the inside of the magnet, which is equipped with, hits
Needle, and striker insertion is arranged in magnet, the side of the striker is equipped with elastic slice, and one end of the elastic slice and striker weld
It connects, the other end is connected with symmetrical fixture block, and the elastic slice insertion is fastened between two fixture blocks, and the top of the fixture block is equipped with fusing
Silk, the top of the fusible link are connected with inlet wire binding post, and the center of the plug-in strip is equipped with the first crank, and described first
By rivet interlacement, there is the second crank in the bottom end of first crank by rivet interlacement for the top of crank and plug-in strip, and described the
The bottom end of two cranks is equipped with monolithic crankshaft, and one end of the insulation cylinder is equipped with piston, and the edge of the piston and insulation gas
Cylinder is in contact, and with insulation cylinder keep slide, it is described insulation cylinder the other end be equipped with jet pipe, and one end of the jet pipe with
The cylinder that insulate is connected to, and the other end of the jet pipe and the height of magnet are consistent, and the side of second crank is equipped with the first spring,
And the both ends of first spring are fixedly connected with outlet pillar and the second crank respectively.
As an improvement of the above technical solution, the overvoltage protection high voltage load disconnecting switch, the insulation cylinder
Top is equipped with Non-return air valve, and the Non-return air valve is connected to the cylinder that insulate, by the insulation cylinder of setting can by gas from
Jet pipe sprays, and when plug-in strip disconnects and is closed, blows out electric arc by calming the anger for piston, is suitable for 35 kilovolts and following product.
As an improvement of the above technical solution, the overvoltage protection high voltage load disconnecting switch, the side of the piston
Equipped with push rod, the side of the push rod and the edge of monolithic crankshaft are equipped with rack gear, and lead between the push rod and monolithic crankshaft
Rack gear engaged transmission is crossed, by shrinking elastic slice after the fusible link fusing of setting, while second spring utilizes elastic force by striker
It squeezes out, rapidly bounces plug-in strip after the striker impact fixture block of extrusion, make the speed disconnected faster, while between fixture block and magnet
Absorption can increase closing speed.
As an improvement of the above technical solution, the overvoltage protection high voltage load disconnecting switch, the outlet binding post
It is embedded in the tail end of inlet wire binding post and is provided with housing pin, the outlet pillar, inlet wire pillar and insulation cylinder are all made of
Non- damper assembly is made, and passes through the non-damper assembly energy effective damping of setting and inhibits the upper of vacuum circuit breaker transient recovery voltage
Rate and amplitude are risen, the generation of cut-off overvoltage is prevented, during breaker is cut-off, no matter source side or load-side can hinder
Buddhist nun and inhibit mutually to convert and generate the switching overvoltage of oscillation due to electric energy and magnetic energy, and can make electric brake have lightning protection,
Resonance and switching overvoltage between damping and inhibition phase-phase, phase-ground, especially play single-phase intermittent arc earthing overvoltage
To impayable inhibiting effect.
The utility model provides a kind of overvoltage protection high voltage load disconnecting switch by improving herein, with existing overvoltage
Protection high voltage load disconnecting switch is compared, and is had the advantages that with arc extinguishing processing；Combined floodgate and disconnected lock can quickly be carried out；It can
Single-phase or three-phase overvoltage the generation that prevents from shutting off brings damage to power grid, embodies are as follows:
Advantage 1: the top of the insulation cylinder is equipped with Non-return air valve, and the Non-return air valve is connected to insulation cylinder, is led to
The insulation cylinder for crossing setting can spray gas from jet pipe, when plug-in strip disconnects and is closed, blow out electricity by calming the anger for piston
Arc is suitable for 35 kilovolts and following product.
Advantage 2: the side of the piston is equipped with push rod, and the side of the push rod and the edge of monolithic crankshaft are all provided with teeth
Item, and by rack gear engaged transmission between the push rod and monolithic crankshaft, by receiving elastic slice after the fusible link fusing of setting
Contracting, while second spring is squeezed out striker using elastic force, is rapidly bounced plug-in strip after the striker impact fixture block of extrusion, is made to disconnect
Speed faster, while the absorption between fixture block and magnet can increase closing speed.
Advantage 3: the tail end of the outlet binding post and inlet wire binding post is embedded in and is provided with housing pin, the outlet branch
Column, inlet wire pillar and insulation cylinder are all made of non-damper assembly and are made, and pass through the non-damper assembly energy effective damping of setting and press down
The climbing and amplitude of vacuum circuit breaker transient recovery voltage processed, prevent the generation of cut-off overvoltage, in the mistake that breaker is cut-off
Cheng Zhong, no matter source side or load-side can damp and inhibit mutually to convert and generate the operation of oscillation due to electric energy and magnetic energy
Voltage, and electric brake can be made with the resonance and switching overvoltage between lightning protection, damping and inhibition phase-phase, phase-ground, especially
Impayable inhibiting effect is played to single-phase intermittent arc earthing overvoltage.
Detailed description of the invention
Fig. 1 is a kind of overvoltage protection high voltage load disconnecting switch structural schematic diagram of the utility model；
Fig. 2 is the portion A enlarged drawing in a kind of Fig. 1 of overvoltage protection high voltage load disconnecting switch of the utility model；
Fig. 3 is the portion B enlarged drawing in a kind of Fig. 1 of overvoltage protection high voltage load disconnecting switch of the utility model.
Serial number as shown in the figure: mounting base 1, outlet pillar 2, inlet wire pillar 3, plug-in strip 4, insulation cylinder 5, the first crank 6, the
Two cranks 7, outlet binding post 8, inlet wire binding post 9, the first spring 10, Non-return air valve 11, piston 12, monolithic crankshaft 13, push rod
14, rack gear 15, fixture block 16, magnet 17, striker 18, second spring 19, elastic slice 20, fusible link 21, fixture block 22, housing pin 23,
Sleeper 24 and jet pipe 25.
Specific embodiment
The utility model is described in detail below in conjunction with attached drawing 1- Fig. 3, to the skill in the utility model embodiment
Art scheme is clearly and completely described, it is clear that and the described embodiments are only a part of the embodiments of the utility model, and
The embodiment being not all of.Based on the embodiments of the present invention, those of ordinary skill in the art are not making creativeness
Every other embodiment obtained, fall within the protection scope of the utility model under the premise of labour.
The utility model provides a kind of overvoltage protection high voltage load disconnecting switch by improving herein, such as Fig. 1-Fig. 3 institute
Show, can be practiced as follows；Including mounting base 1, outlet pillar 2, inlet wire pillar 3, plug-in strip 4 and insulation cylinder 5,
The centre on 1 surface of mounting base is to 1 sunken inside of mounting base, and outlet pillar 2 and inlet wire pillar 3 are individually fixed in mounting base
1 two sides, one end of plug-in strip 4, in 2 top of outlet pillar, and are also connected with outlet binding post 8 with rivet interlacement, plug-in strip 4 it is another
One end bottom is provided with fixture block 16, and the top of inlet wire pillar 3 is equipped with magnet 17, and magnet 17 attracts each other with fixture block 16, insulation
Cylinder 5 is set to 1 surface of mounting base in 30 °, and the sleeper 24 by the way that 5 bottom of insulation cylinder is arranged in and mounting base 1 are fixed
Connection, the side of inlet wire pillar 3 are equipped with the second spring 19 around the inlet wire pillar 3 around setting, and the bottom of second spring 19
End is fixedly connected with inlet wire pillar 3, and the inside of magnet 17 is equipped with striker 18, and the insertion of striker 18 is arranged in magnet 17, striker
18 side is equipped with elastic slice 20, and one end of elastic slice 20 and striker 18 weld, and the other end is connected with symmetrical fixture block 22, elastic slice 20
Insertion is fastened between two fixture blocks 22, and the top of fixture block 22 is equipped with fusible link 21, and the top of fusible link 21 is connected with inlet wire wiring
Column 9, the center of plug-in strip 4 is equipped with the first crank 6, and the top of the first crank 6 and plug-in strip 4 are bent by rivet interlacement, first
There is the second crank 7 in the bottom end of handle 6 by rivet interlacement, and the bottom end of the second crank 7 is equipped with monolithic crankshaft 13, and the one of insulation cylinder 5
End is equipped with piston 12, and the edge of piston 12 is in contact with insulation cylinder 5, and keeps sliding with insulation cylinder 5, and insulate cylinder 5
The other end be equipped with jet pipe 25, and one end of jet pipe 25 is connected to insulation cylinder 5, the height of the other end of jet pipe 25 and magnet 17
Unanimously, the side of the second crank 7 is equipped with the first spring 10, and the both ends of the first spring 10 are bent with outlet pillar 2 and second respectively
Handle 7 is fixedly connected.
The top of insulation cylinder 5 is equipped with Non-return air valve 11, and Non-return air valve 11 is connected to insulation cylinder 5, passes through setting
Insulation cylinder 5 can spray gas from jet pipe 25, when plug-in strip 4 disconnects and is closed, blow out electric arc by calming the anger for piston 12,
Suitable for 35 kilovolts and following product.
The side of piston 12 is equipped with push rod 14, and the side of push rod 14 and the edge of monolithic crankshaft 13 are equipped with rack gear 15, and
By 15 engaged transmission of rack gear between push rod 14 and monolithic crankshaft 13, by receiving elastic slice 20 after the fusing of fusible link 21 of setting
Contracting, while second spring 19 is squeezed out striker 18 using elastic force, the striker 18 of extrusion hits fixture block 16 later rapidly by 4 bullet of plug-in strip
It rises, makes the speed disconnected faster, while the absorption between fixture block 16 and magnet 17 can increase closing speed.
The tail end of outlet binding post 8 and inlet wire binding post 9 is embedded in and is provided with housing pin 23, outlet pillar 2, inlet wire branch
Column 3 and insulation cylinder 5 are all made of non-damper assembly and are made, and pass through the non-damper assembly energy effective damping of setting and inhibit vacuum disconnected
The climbing and amplitude of road device transient recovery voltage prevent single-phase or three-phase overvoltage generation of shutting off, cut-off in breaker
In the process, no matter source side or load-side single-frequency or double frequency circuit can damp and inhibit mutually to convert due to electric energy and magnetic energy and
Generate the switching overvoltage of oscillation, and can make electric brake there is lightning protection, damping and inhibit phase-phase, the resonance between phase-ground and
Switching overvoltage especially plays impayable inhibiting effect to single-phase intermittent arc earthing overvoltage.
A kind of working principle of overvoltage protection high voltage load disconnecting switch: by housing pin 23 respectively by outlet pillar
2 and inlet wire pillar 3 conducting wire compress, then plug-in strip 4 is closed, can be by plug-in strip using the absorption between fixture block 16 and magnet 17
4 quickly close, and outlet binding post 8 and inlet wire binding post 9 is made to be powered, and when there is short circuit or circuit connection exception, melt
21 temperature of fracture of wire increases, and shrinks elastic slice 20 after the fusing of fusible link 21, while second spring 19 is squeezed striker 18 using elastic force
Out, the striker 18 of extrusion rapidly bounces plug-in strip 4 after hitting fixture block 16, and on the other hand the first crank 6 is swung, and makes second
Crank 7 squeezes to the right (otherwise second crank 7 that closes a floodgate then squeezes to the left), is nibbled between push rod 14 and monolithic crankshaft 13 by rack gear 15
Transmission is closed, so that push rod 14 is inwardly squeezed and push piston 12, gas is sprayed from jet pipe 25 after 11 air-breathing of Non-return air valve and is blown out
Electric arc.
In summary；Overvoltage protection high voltage load disconnecting switch described in the utility model is high with existing overvoltage protection
Pressure load-break switch is compared, and is had arc extinguishing processing, can quickly be carried out combined floodgate and disconnected lock, and can prevent the single-phase or three-phase that shuts off
The advantages that generation of overvoltage brings damage to power grid.
The foregoing description of the disclosed embodiments can be realized professional and technical personnel in the field or using originally practical new
Type.Various modifications to these embodiments will be readily apparent to those skilled in the art, and determine herein
The General Principle of justice can be realized in other embodiments without departing from the spirit or scope of the present utility model.Cause
This, the present invention will not be limited to the embodiments shown herein, and is to fit to and principles disclosed herein
The widest scope consistent with features of novelty.
Claims (4)
1. a kind of overvoltage protection high voltage load disconnecting switch, it is characterised in that: including mounting base (1), outlet pillar (2), into
Line pillar (3), plug-in strip (4) and insulation cylinder (5), the centre on mounting base (1) surface is to mounting base (1) indent
It falls into, and outlet pillar (2) and inlet wire pillar (3) are individually fixed in mounting base (1) two sides, one end of the plug-in strip (4) is with rivet
It is connected to outlet pillar (2) top, and is also connected with outlet binding post (8), the other end bottom of the plug-in strip (4) is provided with
The top of fixture block (16), the inlet wire pillar (3) is equipped with magnet (17), and the magnet (17) attracts each other with fixture block (16),
The insulation cylinder (5) is set to mounting base (1) surface, and the sleeper by setting in insulation cylinder (5) bottom in 30 °
(24) it is fixedly connected with mounting base (1), the side of the inlet wire pillar (3) is equipped with around the inlet wire pillar (3) around setting
Second spring (19), and the bottom end of the second spring (19) is fixedly connected with inlet wire pillar (3), the inside of the magnet (17)
Equipped with striker (18), and the striker (18) insertion setting, in magnet (17), the side of the striker (18) is equipped with elastic slice
(20), and one end of the elastic slice (20) and striker (18) are welded, and the other end is connected with symmetrical fixture block (22), the elastic slice
(20) insertion is fastened between two fixture blocks (22), and the top of the fixture block (22) is equipped with fusible link (21), the fusible link (21)
Top be connected with inlet wire binding post (9), the center of the plug-in strip (4) is equipped with the first crank (6), and first crank
(6) by rivet interlacement, there is the second crank in the bottom end of first crank (6) by rivet interlacement on top and plug-in strip (4)
(7), the bottom end of second crank (7) is equipped with monolithic crankshaft (13), and one end of insulation cylinder (5) is equipped with piston (12),
And the edge of the piston (12) is in contact with insulation cylinder (5), and keeps sliding with insulation cylinder (5), the insulation cylinder
(5) the other end is equipped with jet pipe (25), and one end of the jet pipe (25) is connected to insulation cylinder (5), the jet pipe (25)
The other end is consistent with the height of magnet (17), and the side of second crank (7) is equipped with the first spring (10), and first bullet
The both ends of spring (10) are fixedly connected with outlet pillar (2) and the second crank (7) respectively.
2. a kind of overvoltage protection high voltage load disconnecting switch according to claim 1, it is characterised in that: the insulation cylinder
(5) top is equipped with Non-return air valve (11), and the Non-return air valve (11) is connected to insulation cylinder (5).
3. a kind of overvoltage protection high voltage load disconnecting switch according to claim 1, it is characterised in that: the piston (12)
Side be equipped with push rod (14), the side of the push rod (14) and the edge of monolithic crankshaft (13) are equipped with rack gear (15), and institute
It states between push rod (14) and monolithic crankshaft (13) through rack gear (15) engaged transmission.
4. a kind of overvoltage protection high voltage load disconnecting switch according to claim 1, it is characterised in that: the outlet wiring
Column (8) and the tail end of inlet wire binding post (9), which are embedded in, to be provided with housing pin (23), the outlet pillar (2), inlet wire pillar
(3) it is all made of non-damper assembly with insulation cylinder (5) and is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820727994.0U CN209357661U (en) | 2018-05-16 | 2018-05-16 | A kind of overvoltage protection high voltage load disconnecting switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820727994.0U CN209357661U (en) | 2018-05-16 | 2018-05-16 | A kind of overvoltage protection high voltage load disconnecting switch |
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| Publication Number | Publication Date |
|---|---|
| CN209357661U true CN209357661U (en) | 2019-09-06 |
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ID=67779274
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820727994.0U Active CN209357661U (en) | 2018-05-16 | 2018-05-16 | A kind of overvoltage protection high voltage load disconnecting switch |
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| CN (1) | CN209357661U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729148A (en) * | 2019-09-20 | 2020-01-24 | 李中毅 | Distribution network automation control device for power grid dispatching |
| CN112133592A (en) * | 2020-11-25 | 2020-12-25 | 南京艾科赛棱特环保科技有限公司 | Quick cut-off type arc extinguishing switch |
| CN116387079A (en) * | 2023-06-05 | 2023-07-04 | 昆明佰伟科技有限公司 | High-voltage isolating switch for high-voltage power transmission |
-
2018
- 2018-05-16 CN CN201820727994.0U patent/CN209357661U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110729148A (en) * | 2019-09-20 | 2020-01-24 | 李中毅 | Distribution network automation control device for power grid dispatching |
| CN112133592A (en) * | 2020-11-25 | 2020-12-25 | 南京艾科赛棱特环保科技有限公司 | Quick cut-off type arc extinguishing switch |
| CN116387079A (en) * | 2023-06-05 | 2023-07-04 | 昆明佰伟科技有限公司 | High-voltage isolating switch for high-voltage power transmission |
| CN116387079B (en) * | 2023-06-05 | 2023-09-19 | 浙江勇圣智能科技有限公司 | High-voltage isolating switch for high-voltage power transmission |
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