CN102368445A - Three-working-position isolation switch - Google Patents
Three-working-position isolation switch Download PDFInfo
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- CN102368445A CN102368445A CN2011103551873A CN201110355187A CN102368445A CN 102368445 A CN102368445 A CN 102368445A CN 2011103551873 A CN2011103551873 A CN 2011103551873A CN 201110355187 A CN201110355187 A CN 201110355187A CN 102368445 A CN102368445 A CN 102368445A
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- contact
- isolation switch
- static contact
- switch
- moving contact
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Abstract
The invention provides a three-working-position isolation switch. An isolation switch static contact and a grounding switch static contact are provided at two ends in a three-phase together box body. A moving contact is positioned at a middle position between the isolation switch static contact and the grounding switch static contact. An operation mechanism controls the moving contact to move between the isolation switch static contact and the grounding switch static contact and controls two ends of the moving contact to contact the isolation switch static contact or the grounding switch static contact individually respectively. The isolation switch static contact is provided with an arc ignition structure inside. According to the invention, functions of the isolation switch and the grounding switch are combined as one body, operation and electric interlocking are simplified, a volume is greatly reduced, the arc ignition structure can prevent arc burning from damaging electric appliance, and the three-working-position isolation switch has the advantages of simple structure, compactness, a small volume, safety, reliability, good stability, low cost and a long service life.
Description
Technical field
The invention belongs to a kind of tri-station isolating switch.
Background technology
Traditional isolating switch, earthed switch structure branch are arranged, machinery between isolating switch and earthed switch and electrical interlocks complex structure, and shared volume is big in the H-GIS combined electrical apparatus.The excessive isolating switch and the volume of earthed switch not only are unfavorable for the installation and the use of H-GIS combined electrical apparatus, also make the poor stability of H-GIS combined electrical apparatus, and volume is big, influence its normal use.On the other hand,, in fixed contact, establish the watchband fingertip of several ring-types usually, but the electric arc that two contacts of high power switch produce when separating often burns the watchband fingertip, causes switch to damage and scraps for guaranteeing the good contact of high power switch two contacts.
Summary of the invention
The objective of the invention is to design a kind of tri-station isolating switch, can the function of isolating switch and earthed switch be integrated, simplify the operation and electrical interlocks; Reduced volume significantly, but the arc-striking structure arc protection burns infringement electrical equipment, also has simple in structure; Compact volume is little; Safe and reliable, good stability, cost hangs down the advantage with long service life.
For this reason, the present invention mainly is made up of static contact isolation switch and earthed switch fixed contact.The limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in the three-phase combined type housing; Moving contact is positioned at the centre position of static contact isolation switch and earthed switch fixed contact; Operating mechanism control moving contact moves between static contact isolation switch and earthed switch fixed contact and control moving contact two ends are distinguished and contacted static contact isolation switch or earthed switch fixed contact separately, is provided with arc-striking structure in the static contact isolation switch.Described operating mechanism is positioned at support bar and lower conductor upper end; Form by guide groove, gear and tooth bar; The moving contact cunning fits in the guide groove, and guide groove is fixed on support bar and lower conductor upper end, and the moving contact lower end is provided with the tooth bar with the gear toe joint; Gear shaft is located in the guide groove, and gear is through the rack drives moving contact.Described gear middle part is provided with the dwang that driven gear rotates, and dwang is driven by manual insulating bar, or is driven by control machinery.Described moving contact is provided with copper-tungsten portion with a corresponding end of static contact isolation switch, and the moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road of the head insertion that supplies the self-reliance contact.Described arc-striking structure is the self-reliance contact at middle part in the static contact isolation switch.The head of described self-reliance contact is provided with copper-tungsten portion, and the head of self-reliance contact is spheroidal.Described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place.Described arc-striking structure is made up of striking part, spring, stopper slot, guide ring and banking pin; Striking part cunning fits in the static contact isolation switch; The striking part is open circles barrel shape body; Be provided with spring between the diapire in the openend of striking part and the static contact isolation switch; Vertically be provided with stopper slot on the lateral wall of striking part, be provided with an end in the stopper slot and be fixed on the banking pin on the static contact isolation switch inwall, the openend of banking pin control striking part holds parallel with the outer face of static contact isolation switch with the other end of striking part with the interior diapire of static contact isolation switch.Described guide ring is positioned at the front and back ends of the watchband fingertip on the static contact isolation switch inwall.The said structure design has realized the object of the invention.
The present invention can be integrated the function of isolating switch and earthed switch, simplifies the operation and electrical interlocks, significantly reduced volume; The present invention can make the volume-diminished of H-GIS combined electrical apparatus nearly 65%, and arc-striking structure can prevent effectively that electric arc from burning infringement electrical equipment, also has simple in structure; Compact volume is little; Safe and reliable, good stability, cost hangs down the advantage with long service life.
Description of drawings
Structural representation when Fig. 1 joins for moving contact of the present invention and static contact isolation switch.
Fig. 2 is a moving contact disengaged position structural representation of the present invention.
Structural representation when Fig. 3 joins for moving contact of the present invention and earthed switch fixed contact.
Fig. 4 is a moving contact structure sketch map of the present invention.
The static contact isolation switch that Fig. 5 has a self-reliance contact for the present invention moving contact structure sketch map that joins.
Fig. 6 is the local structure for amplifying sketch map of Fig. 5.
Fig. 7 is a self-reliance structure of contact terminal sketch map of the present invention.
Fig. 8 is another example structure sketch map of arc-striking structure of the present invention.
Fig. 9 is the separation process structural representation of Fig. 8 state.
Figure 10 is a structural representation after the separation of Fig. 8 state.
Embodiment
To shown in Figure 10, a kind of tri-station isolating switch mainly is made up of static contact isolation switch 8 and 7 of earthed switch fixed contacts like Fig. 1.The limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in three-phase combined type housing 2.Moving contact 3 is positioned at the centre position of static contact isolation switch and earthed switch fixed contact.Operating mechanism control moving contact moves and independent respectively static contact isolation switch or the earthed switch fixed contact of contacting in control moving contact two ends between static contact isolation switch and earthed switch fixed contact.Be provided with arc-striking structure in the static contact isolation switch.
To shown in Figure 3, described operating mechanism is positioned at support bar 11 and lower conductor 4 upper ends, is made up of guide groove 9, gear 6 and tooth bar 10 like Fig. 1.The moving contact cunning fits in the guide groove, and guide groove is fixed on support bar and lower conductor upper end.The moving contact lower end is provided with the tooth bar with the gear toe joint, and gear shaft is located in the guide groove, and gear is through the rack drives moving contact.Support bar and lower conductor upper end are structure as a whole, and support bar and lower conductor lower end are fixed on the three-phase combined type housing of bottom, and the three-phase combined type housing is that insulating material is processed.Described gear middle part is provided with the dwang 5 that driven gear rotates, and dwang is driven by manual insulating bar, or is driven by control machinery.Control machinery can be for receiving the motor of remote control control.The upper end of upper conductor 1 upper end and its support bar is fixed on the three-phase combined type housing on top, and its support bar and upper conductor lower end are structure as a whole and fixing static contact isolation switch.
Normal operating conditions of the present invention when joining for moving contact and static contact isolation switch shown in Figure 1 is the switch closing position.Moving contact and earthed switch fixed contact break off, and moving contact and static contact isolation switch are connected.Electric current flows to lower conductor by upper conductor through static contact isolation switch.Moving contact can move to the centre position through gear drive at this moment.Position shown in Figure 2 is the moving contact centre position, and moving contact and static contact isolation switch break off, and moving contact and earthed switch fixed contact also break off simultaneously.This moment, moving contact can move to any any end to static contact isolation switch or earthed switch fixed contact.Moving contact shown in Figure 3 position is maintenance of the present invention position, is the disconnected gate position of switch.Moving contact and static contact isolation switch break off, and moving contact and earthed switch fixed contact are connected, and effectively protect maintainer's safety.This moment, moving contact can move to the centre position.
As shown in Figure 4; Described moving contact is provided with copper-tungsten portion 14 with a corresponding end of static contact isolation switch; The moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road 13 of the head insertion that supplies the self-reliance contact.
Obviously, when moving contact separated with static contact isolation switch, it is lonely that two separated part can produce electricity, and the electric arc of generation often burns the watchband fingertip, causes the switch infringement to scrap.Arc-striking structure of the present invention can effectively overcome above-mentioned defective.
To shown in Figure 7, described arc-striking structure is the self-reliance contact 12 at middle part in the static contact isolation switch like Fig. 5.The head of described self-reliance contact is provided with copper-tungsten portion, and the head of self-reliance contact is spheroidal.Described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place, and the bottom face of self-reliance contact is fixed on diapire middle part in the static contact isolation switch.
During separation; Moving contact separates earlier with watchband fingertip in the static contact isolation switch port; The self-reliance contact separates with moving contact at last, and the electric arc that produces like this will can be avoided the electric lonely ablation watchband fingertip and the moving contact that produce in the burning of the copper-tungsten position of self-reliance contact and moving contact.
Described arc-striking structure also can be: to shown in Figure 10, described arc-striking structure is made up of striking part 16, spring 17, stopper slot 18, guide ring 21,22 and 19 of banking pins like Fig. 8.Striking part cunning fits in the static contact isolation switch, and the striking part is open circles barrel shape body, is provided with spring between the diapire in the openend of striking part and the static contact isolation switch.Vertically be provided with stopper slot on the lateral wall of striking part, be provided with an end in the stopper slot and be fixed on the banking pin on the static contact isolation switch inwall.The openend of banking pin control striking part holds parallel with the outer face of static contact isolation switch with the other end of striking part with the interior diapire of static contact isolation switch.Described guide ring is positioned at the front and back ends of the watchband fingertip 15 on the static contact isolation switch inwall.The guide ring double striking part that prevents that can lead injures in moving process that watch band contact refers to and the static contact isolation switch inwall.
Fig. 8 is the local enlarged diagram of Fig. 1, is moving contact and the static contact isolation switch normal operating conditions of the present invention when joining, and is the switch closing position.This moment, spring was compressed, and the striking part compresses with the moving contact end face under spring action.Fig. 9 is in the separating brake motion of moving contact and static contact isolation switch; When moving contact and the disengaging of watchband fingertip; The striking part is just gone into state of contact with the watch band contact fingering, and the electric current of this moment flows to the striking part again to moving contact from static contact isolation switch through the watchband fingertip, has realized the transfer of electric current.Figure 10 shows proceeding that the separating brake along with moving contact and static contact isolation switch moves, when striking part end face flushes with the outer face of static contact isolation switch, in stopper slot under the effect of banking pin; The stop motion of striking part; And moving contact continuation separating brake motion (to the moving contact centre position) separates with the striking part, produces electric arc, and electric arc draws in striking part and moving contact end; Electric arc can not contact the watchband fingertip, and the watchband fingertip has been played protective effect.
In a word, of the present invention can the function of isolating switch and earthed switch being integrated simplifies the operation and electrical interlocks; Reduced volume significantly, but the arc-striking structure arc protection burns infringement electrical equipment, also has simple in structure; Compact volume is little; Safe and reliable, good stability, cost hangs down the advantage with long service life.
Claims (9)
1. tri-station isolating switch; Mainly form by static contact isolation switch and earthed switch fixed contact; It is characterized in that: the limit, two ends is respectively static contact isolation switch and earthed switch fixed contact in the three-phase combined type housing; Moving contact is positioned at the centre position of static contact isolation switch and earthed switch fixed contact; Operating mechanism control moving contact moves between static contact isolation switch and earthed switch fixed contact and control moving contact two ends are distinguished and contacted static contact isolation switch or earthed switch fixed contact separately, is provided with arc-striking structure in the static contact isolation switch.
2. by the described tri-station isolating switch of claim 1; It is characterized in that: described operating mechanism is positioned at support bar and lower conductor upper end, is made up of guide groove, gear and tooth bar, and the moving contact cunning fits in the guide groove; Guide groove is fixed on support bar and lower conductor upper end; The moving contact lower end is provided with the tooth bar with the gear toe joint, and gear shaft is located in the guide groove, and gear is through the rack drives moving contact.
3. by the described tri-station isolating switch of claim 2, it is characterized in that: described gear middle part is provided with the dwang that driven gear rotates, and dwang is driven by manual insulating bar, or is driven by control machinery.
4. by the described tri-station isolating switch of claim 1; It is characterized in that: described moving contact is provided with copper-tungsten portion with a corresponding end of static contact isolation switch; The moving contact lower end is provided with the tooth bar with the gear toe joint, and moving contact middle part and self-reliance contact corresponding end are provided with the jack road of the head insertion that supplies the self-reliance contact.
5. by the described tri-station isolating switch of claim 1, it is characterized in that: described arc-striking structure is the self-reliance contact at middle part in the static contact isolation switch.
6. by claim 1 and 5 described tri-station isolating switchs, it is characterized in that: the head of described self-reliance contact is provided with copper-tungsten portion, and the head of self-reliance contact is spheroidal.
7. by the described tri-station isolating switch of claim 6, it is characterized in that: described self-reliance contact top end face flushes with the outer face of the static contact isolation switch at place.
8. by the described tri-station isolating switch of claim 1; It is characterized in that: described arc-striking structure is made up of striking part, spring, stopper slot, guide ring and banking pin; Striking part cunning fits in the static contact isolation switch; The striking part is open circles barrel shape body, is provided with spring between the diapire in the openend of striking part and the static contact isolation switch, vertically is provided with stopper slot on the lateral wall of striking part; Be provided with an end in the stopper slot and be fixed on the banking pin on the static contact isolation switch inwall, the openend of banking pin control striking part holds parallel with the outer face of static contact isolation switch with the other end of striking part with the interior diapire of static contact isolation switch.
9. by the described tri-station isolating switch of claim 8, it is characterized in that: described guide ring is positioned at the front and back ends of the watchband fingertip on the static contact isolation switch inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355187 CN102368445B (en) | 2011-11-11 | 2011-11-11 | Three-working-position isolation switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110355187 CN102368445B (en) | 2011-11-11 | 2011-11-11 | Three-working-position isolation switch |
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| Publication Number | Publication Date |
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| CN102368445A true CN102368445A (en) | 2012-03-07 |
| CN102368445B CN102368445B (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201110355187 Active CN102368445B (en) | 2011-11-11 | 2011-11-11 | Three-working-position isolation switch |
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Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236370A (en) * | 2013-04-19 | 2013-08-07 | 镇江维依埃电工研究所有限公司 | Four-connecting-rod and three-workstation isolating switch |
| CN103489681A (en) * | 2013-10-10 | 2014-01-01 | 益和电气集团股份有限公司 | Contact terminal assembling tool for three-position switch |
| CN106611675A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Compact three-position isolated earthing switch |
| CN106847579A (en) * | 2017-02-28 | 2017-06-13 | 山东达驰高压开关有限公司 | A kind of 252kV three-stations |
| CN109119280A (en) * | 2017-06-23 | 2019-01-01 | 河南平芝高压开关有限公司 | A kind of isolation earthing switch and the GIS device using the isolation earthing switch |
| CN109148204A (en) * | 2017-06-27 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch |
| CN109346368A (en) * | 2018-11-28 | 2019-02-15 | 许继（厦门）智能电力设备股份有限公司 | A kind of structure of contact terminal of guillotine type disconnecting switch |
| CN114429879A (en) * | 2021-12-16 | 2022-05-03 | 河南平高电气股份有限公司 | Isolated static contact and three-station isolated grounding switch |
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| CN2896491Y (en) * | 2006-05-23 | 2007-05-02 | 西安西开高压电气股份有限公司 | Composite module of three-work-position isolation switch and earthing switch |
| CN200990482Y (en) * | 2006-09-29 | 2007-12-12 | 希捷爱斯（上海）电气有限公司 | Direct acting three-station switch |
| CN201294194Y (en) * | 2008-10-23 | 2009-08-19 | 河南森源电气股份有限公司 | Arc initiating device of high voltage isolating switch |
| CN201622941U (en) * | 2010-01-12 | 2010-11-03 | 正泰电气股份有限公司 | Self-elastic contact |
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| CN2896491Y (en) * | 2006-05-23 | 2007-05-02 | 西安西开高压电气股份有限公司 | Composite module of three-work-position isolation switch and earthing switch |
| CN200990482Y (en) * | 2006-09-29 | 2007-12-12 | 希捷爱斯（上海）电气有限公司 | Direct acting three-station switch |
| CN201294194Y (en) * | 2008-10-23 | 2009-08-19 | 河南森源电气股份有限公司 | Arc initiating device of high voltage isolating switch |
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Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103236370A (en) * | 2013-04-19 | 2013-08-07 | 镇江维依埃电工研究所有限公司 | Four-connecting-rod and three-workstation isolating switch |
| CN103236370B (en) * | 2013-04-19 | 2015-03-04 | 镇江维依埃电工研究所有限公司 | Four-connecting-rod and three-workstation isolating switch |
| CN103489681A (en) * | 2013-10-10 | 2014-01-01 | 益和电气集团股份有限公司 | Contact terminal assembling tool for three-position switch |
| CN103489681B (en) * | 2013-10-10 | 2015-07-15 | 益和电气集团股份有限公司 | Contact terminal assembling tool for three-position switch |
| CN106611675A (en) * | 2015-10-27 | 2017-05-03 | 上海思源高压开关有限公司 | Compact three-position isolated earthing switch |
| CN106847579A (en) * | 2017-02-28 | 2017-06-13 | 山东达驰高压开关有限公司 | A kind of 252kV three-stations |
| CN109119280A (en) * | 2017-06-23 | 2019-01-01 | 河南平芝高压开关有限公司 | A kind of isolation earthing switch and the GIS device using the isolation earthing switch |
| CN109119280B (en) * | 2017-06-23 | 2021-10-29 | 河南平芝高压开关有限公司 | Isolation grounding switch and GIS equipment using same |
| CN109148204A (en) * | 2017-06-27 | 2019-01-04 | 河南平芝高压开关有限公司 | A kind of gas-insulating and fully-enclosed combined electrical apparatus and its three-station isolating grounding switch |
| CN109148204B (en) * | 2017-06-27 | 2022-06-21 | 河南平芝高压开关有限公司 | Gas insulated totally-enclosed combined electrical apparatus and three-station isolation grounding switch thereof |
| CN109346368A (en) * | 2018-11-28 | 2019-02-15 | 许继（厦门）智能电力设备股份有限公司 | A kind of structure of contact terminal of guillotine type disconnecting switch |
| CN114429879A (en) * | 2021-12-16 | 2022-05-03 | 河南平高电气股份有限公司 | Isolated static contact and three-station isolated grounding switch |
| CN114429879B (en) * | 2021-12-16 | 2024-03-22 | 河南平高电气股份有限公司 | Isolation static contact and three-station isolation grounding switch |
Also Published As
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|---|---|
| CN102368445B (en) | 2013-12-25 |
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