CN2606440Y - High-voltage separated switch with arc strike device - Google Patents
High-voltage separated switch with arc strike device Download PDFInfo
- Publication number
- CN2606440Y CN2606440Y CN 03227147 CN03227147U CN2606440Y CN 2606440 Y CN2606440 Y CN 2606440Y CN 03227147 CN03227147 CN 03227147 CN 03227147 U CN03227147 U CN 03227147U CN 2606440 Y CN2606440 Y CN 2606440Y
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- Prior art keywords
- arc
- contact
- moving
- rod
- movable contact
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- Expired - Lifetime
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Abstract
A high-voltage separated switch with an arc strike device comprises a moving contact base, a moving contact blade, an arc horn block, a main breakback contact rod, a steel-cored aluminium strand wire, a current-conducting plate and a pipe generatrix. The arc horn block is connected with the moving contact blade which is fixed on the moving contact base. The breakback contact rod is connected with the current-conducting plate through the steel-cored aluminium strand wire, the pipe generatrix is arranged on the current-conducting plate through a pipe generatrix nip. The utility model is characterized in that a static arc rod is arranged on the main breakback contact rod, an arc device is arranged on the moving contact base, the arc device is provided with a moving arc contact head which can contact with the static arc rod. The utility model can allow the moving arc contact head to contact with the static arc rod to produce arcing when the high voltage isolator is closed, and joint the moving arc contact head and the static arc rod firmly by tightening a spring to put out the arcing. When the high voltage isolator is opened, the moving contact head and the static contact head are firstly separated, the moving arc contact head and the static arc rod are secondly separated to produce arcing, the arching goes out after total separation, thereby making the moving contact head and the static contact head not produce arching during the process of main galvanic circle and having the abilities of 2500A open-close generatrix transfer circuit, 450V voltage and 100 opening times.
Description
Technical field:
The utility model relates to high voltage isolator, is specifically related to a kind of to the improvement on GW16, the 17A series superhigh pressure isolating switch.
Background technology:
In the high voltage power transmission and transforming road, often require load current to be transformed into another bus-bar system from a bus-bar system with isolating switch, this mode of operation requires isolating switch must have the ability that Guan Hehe cut-offs the bus switching current.
Fast development along with electric power system, the requirement of folding bus switching current 1600A, bus changing voltage 300V can not be satisfied customer requirements, and the isolating switch that adopts original structure is when carrying out opening and closing bus switching current, dynamic and static main contact can produce the arcing phenomenon and serious scaling loss, make the isolating switch loop resistance will increase or lose current capacity greatly, therefore isolating switch is scrapped, even causes the electric power system serious accident.
The utility model content:
Technical problem to be solved in the utility model is that isolating switch can be changed reliably and can not produce the arcing scaling loss when how to guarantee folding bus switching current 2500A, bus changing voltage 450V.
The utility model is to solve the problems of the technologies described above by following technical scheme.It comprises movable contact headstock, movable contact spring, arc-horn block, main stationary contact bar, steel reinforced aluminium conductor, conductive plate and pipe bus, and described arc-horn block and movable contact spring join, and movable contact spring is fixed on the movable contact headstock; Main stationary contact bar joins by steel reinforced aluminium conductor and conductive plate, the pipe bus places on the conductive plate by the pipe bus clip, it is characterized in that on main stationary contact bar connecting a quiet arc ignition bar, be provided with an arc-initiating device on the movable contact headstock, this device is provided with and can moves the striking contact with quiet arc ignition bar touches mutually.Described arc-initiating device comprises and holds out against spring, guide rod, conducting bracket, conductive strips, moving striking contact and insulation guide plate, guide rod places on the movable contact headstock by conducting bracket, be with on it and hold out against spring, moving striking contact is loaded on the guide rod top, the insulation guide plate is loaded on the moving striking contact, and the conductive strips two ends join with conducting bracket and moving striking contact respectively.
The utility model is by being provided with an arc-initiating device on the movable contact headstock, can make high voltage isolator in making process, form with quiet arc ignition bar by moving striking contact in advance and contact the generation arcing, make its joint firm by the elastic force that holds out against spring then, arcing is extinguished.During separating brake, dynamic and static main contact separates earlier, separates behind moving striking contact and the quiet arc ignition bar, produces arcing, separates the after-burning expulsion of arc fully and goes out, thereby make in the main conductive circuit not arcing scaling loss of dynamic and static main contact, has guaranteed the safe operation of electric power system.The utlity model has folding bus switching current 2500A, bus changing voltage 450V, the ability that the folding number of times is 100 times.Compared with prior art, have higher applied value and wide application prospect.
Description of drawings:
Fig. 1 is the utility model structure side view;
Fig. 2 closes starting the arc position side view in (cut-offfing) process for the utility model isolating switch closes;
Fig. 3 is the utility model isolating switch closing position front view.
Among the figure:
1-movable contact headstock; The 2-dog screw; 3-holds out against spring; The 4-back-up ring;
The 5-guide rod; The 6-arc-initiating device; The 7-conducting bracket; The 8-conductive strips;
9-moves the striking contact; The 10-pillar; The 11-contiguous block; The quiet arc ignition bar of 12-;
13-master's stationary contact bar; The 14-guide plate that insulate; The 15-movable contact spring; The 16-steel reinforced aluminium conductor;
The 17-arc-horn block; The 18-conductive plate; 19-manages bus clip; 20-manages bus.
Embodiment:
The utility model is the improvement of being done on existing GW16,17A series superhigh pressure isolating switch.Fig. 1, Fig. 2, Fig. 3 have provided Application Example of the utility model, as shown in Figure 1, the utility model comprises movable contact headstock 1, movable contact spring 15, arc-horn block 17, main stationary contact bar 13, steel reinforced aluminium conductor 16, conductive plate 18 and pipe bus 20, described arc-horn block 17 joins with movable contact spring 15, and movable contact spring 15 is installed in the movable contact headstock 1; Described main stationary contact bar 13 joins by contiguous block 11 and steel reinforced aluminium conductor 16 1 ends, steel reinforced aluminium conductor 16 other ends and conductive plate 18 join, pipe bus 20 is by 19 clampings of pipe bus clip, conductive plate 18 is fixed on the pipe bus clip 19, by movable contact headstock 11 move up and down clamping master stationary contact bar 13, form main conductive circuit.The utility model is characterised in that and connects a quiet arc ignition bar 12 on main stationary contact bar 13, this quiet arc ignition bar 12 is fixed on the main stationary contact bar 13 by pillar 10, in movable contact headstock 1 side one arc-initiating device 6 is housed, this device is provided with moving striking contact 9, touch mutually with quiet arc ignition bar 12 by the moving striking contact 9 of the mobile drive of movable contact headstock 1 in advance, form an additional conductive loop, avoid isolating switch closing, making the scaling loss that dynamic and static main contact produces owing to arcing in the main conductive circuit during separating brake, thereby realized the purpose of this utility model.
As shown in the figure, the utility model arc-initiating device 6 comprises and holds out against spring 3, guide rod 5, conducting bracket 7, conductive strips 8, moving striking contact 9 and insulation guide plate 14, guide bar support 7 is fixed on the movable contact headstock 1 by dog screw 2, guide rod 5 passes conducting bracket 7, be with on it and hold out against spring 3, this holds out against spring 3 one ends and places on the conducting bracket 7, the other end is fixing by the back-up ring of being located on the guide rod 54, moving striking contact 9 is loaded on guide rod 5 tops, two insulation guide plates 14 are loaded on moving striking contact 9 sides, and conductive strips 8 two ends join with conducting bracket 7 and moving striking contact 9 respectively.
For guaranteeing moving striking contact 9 and quiet arc ignition bar 12 contact stabilizations, it is arc-shaped surface that the moving striking contact 9 of the utility model touches the face of closing with quiet arc ignition bar 12.
The utility model course of work:
When isolating switch closed a floodgate, arc-initiating device 6 and movable contact headstock 1 moved upward under mechanism's actuating force effect, and moving striking contact 9 touches with quiet arc ignition bar 12 earlier and closes, and produces arcing.When switch continues when the combined floodgate direction is moved, moving striking contact 9 moves downward with guide rod 5 relative movable contact headstocks 1, owing to hold out against the effect of spring 3 spring forces, striking contact 9 is contacted securely with quiet arc ignition bar 12, arcing is extinguished, formed reliable additional conductive loop.At this moment, electric current, is delivered on the movable contact headstock 1 through steel reinforced aluminium conductor 16, contiguous block 11, main stationary contact bar 13, quiet arc ignition bar 12, moving striking contact 9, conductive strips 8, conducting bracket 7 by conductive plate 19 through managing bus clip 19 to conductive plate 18 more in regular turn by pipe bus 20.When closing operation continues and stop, the movable contact spring 15 of main switch cutter has also been finished contact and the clamping to main stationary contact bar 13, form main conductive circuit, its electric current, is delivered on the movable contact headstock 1 through steel reinforced aluminium conductor 16, contiguous block 11, main stationary contact bar 13, movable contact spring 15 by conductive plate 18 through managing bus clip 19 to conductive plate 18 more in regular turn by pipe bus 20.
When the isolating switch separating brake, movable contact spring 15 disconnects earlier with main stationary contact bar 13 in the main conductive circuit, and subsidiary loop is born load current, continues separating brake, and moving striking contact 9 is under the effect that holds out against spring 3, and movable contact headstock 1 moves upward relatively, continues to bear load current.When moving striking contact 9 begins to separate with quiet arc ignition bar 12, produce arcing, after separating fully, arcing is extinguished, and cut-offs bus switching current EO.
Claims (3)
1, a kind of high voltage isolator with arc-initiating device, comprise movable contact headstock (1), movable contact spring (15), arc-horn block (17), main stationary contact bar (13), steel reinforced aluminium conductor (16), conductive plate (18) and pipe bus (20), described arc-horn block (17) joins with movable contact spring (15), and movable contact spring (15) is fixed on the movable contact headstock (1); Described main stationary contact bar (13) joins by steel reinforced aluminium conductor (16) and conductive plate (18), pipe bus (20) places on the conductive plate (18) by pipe bus clip (19), it is characterized in that going up connection one quiet arc ignition bar (12) at main stationary contact bar (13), be provided with an arc-initiating device (6) on movable contact headstock (1), this device is provided with the moving striking contact (9) that can touch mutually with quiet arc ignition bar (12).
2, the high voltage isolator of band arc-initiating device according to claim 1, it is characterized in that arc-initiating device (6) comprises holds out against spring (3), guide rod (5), conducting bracket (7), conductive strips (8), moving striking contact (9) and the guide plate (14) that insulate, described guide rod (5) places on the movable contact headstock (1) by conducting bracket (7), be with on it and hold out against spring (3), moving striking contact (9) is loaded on guide rod (5) top, insulation guide plate (14) is loaded on the moving striking contact (9), and conductive strips (8) two ends join with conducting bracket (7) and moving striking contact (9) respectively.
3, the high voltage isolator of band arc-initiating device according to claim 1 and 2 is characterized in that it is arc-shaped surface that moving striking contact (9) touches the face of closing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227147 CN2606440Y (en) | 2003-03-17 | 2003-03-17 | High-voltage separated switch with arc strike device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03227147 CN2606440Y (en) | 2003-03-17 | 2003-03-17 | High-voltage separated switch with arc strike device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2606440Y true CN2606440Y (en) | 2004-03-10 |
Family
ID=34163973
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03227147 Expired - Lifetime CN2606440Y (en) | 2003-03-17 | 2003-03-17 | High-voltage separated switch with arc strike device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2606440Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
-
2003
- 2003-03-17 CN CN 03227147 patent/CN2606440Y/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110428985A (en) * | 2019-08-20 | 2019-11-08 | 国网福建省电力有限公司检修分公司 | Easy replaceable GW16/17 type disconnecting switch movable contact spring |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee |
Owner name: HUNAN CHANGGAO HIGH VOLTAGE SWITCH GROUP STOCK CO. Free format text: FORMER NAME OR ADDRESS: CHANGSHA HIGH VOLTAGE SWITCHGEAR CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: West side of Jinxing Road, Hunan high tech food industry base, Changsha, Hunan Province: 410219 Patentee after: HUNAN CHANGGAO HIGH VOLTAGE SWITCHGEAR GROUP CO., LTD. Address before: 69, Kui Road, Changsha, Hunan, China: 410004 Patentee before: Changsha High-voltage Switch Co., Ltd. |
|
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |
Expiration termination date: 20130317 Granted publication date: 20040310 |