CN201985464U - Arc transferring and extinguishing device for temporary grounding wires - Google Patents
Arc transferring and extinguishing device for temporary grounding wires Download PDFInfo
- Publication number
- CN201985464U CN201985464U CN2010205656809U CN201020565680U CN201985464U CN 201985464 U CN201985464 U CN 201985464U CN 2010205656809 U CN2010205656809 U CN 2010205656809U CN 201020565680 U CN201020565680 U CN 201020565680U CN 201985464 U CN201985464 U CN 201985464U
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- external electrode
- inner electrode
- ground wire
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Abstract
The utility model relates to an arc transferring and extinguishing device for temporary grounding wires. The arc transferring and extinguishing device comprises a choking coil (3), an arc chamber (6), a first arc-extinguishing clamp (11), a second arc-extinguishing clamp (12), a pair of shunt-wound first inner electrode (7) and second inner electrode (8), and a pair of shunt-wound first outer electrode (9) and second outer electrode (10), which are all designed in an insulating rod (1), wherein the first and the second inner electrodes are positioned in the arc chamber (6) to serve as arc generating electrodes; the first and the second outer electrodes are positioned on the outer side of the insulating rod (1) to ensure that a first grounding wire (2) and a second grounding wire (15) which are both temporary are in reliable connection; one end of the choking coil (3) is connected with a conductive copper bar (4), and the other end is connected with the first inner electrode (7); and the choking coil (3) is connected with the first outer electrode (9) after being connected in series with the first inner electrode (7). The arc transferring and extinguishing device is mainly used for transferring potential arcs between a hook and a high-tension line to the arc chamber when temporary grounding wires are hung on ultra-high voltage transmission lines, and can quickly extinguish the arcs by the aid of the arc extinguishing clamps, thereby effectively preventing the high-voltage lines from erosion and protecting the security of operating staff.
Description
Technical field
The utility model relates to a kind of arc transfer and arc-extinction device; be mainly used in UHV transmission line when articulating temporary ground wire, arc transfer potential between hook and high-voltage line to arc chamber, and is pressed from both sides quick blow-out by blow-out; can effectively avoid high-tension line to ablate, protection operating personnel's safety.
Background technology
There are certain residual voltage in superhigh pressure or UHV transmission line when interruption maintenance, especially same tower double back transmission line, the normal loop line road of adopting is moved, the working method of another loop line road interruption maintenance, owing to have intercoupling of electric field and magnetic field between double back transmission line, will on the maintenance circuit, induce bigger induced voltage and induced current.For guaranteeing maintainer's personal safety, must articulate temporary ground wire at high-tension line maintenance point.Because the induced voltage height, temporary ground wire will produce very strong electric arc and impulse current in contact and when breaking away from high-voltage line, and this is serious threat maintainer's safety, and also can cause ablation to lead.
At present, existing temporary ground wire hanging device on the market, its extinguishing arc ability can not satisfy ultra high voltage, articulates the needs of temporary ground wire when especially the common-tower double-return UHV transmission line is overhauled; And the device that has contains the housed joint point, does not satisfy the relevant rules requirement about temporary ground wire.
The utility model is at ultra high voltage, and especially the extra-high voltage same tower double circuit transmission line articulates the problem that temporary ground wire exists, and has proposed a kind of new solution, can satisfy the needs that UHV transmission line articulates electric arc between interim elimination hook and lead.
Summary of the invention
The purpose of this utility model is: a kind of temporary ground wire arc transfer and arc-extinction device are provided; have can drawing and pulling type insulating bar; be mainly used in UHV transmission line when articulating temporary ground wire; with potential arc transfer between hook and high-voltage line to arc chamber; and press from both sides quick blow-out by blow-out; can effectively avoid high-tension line to ablate, protection operating personnel's safety.
The technical solution adopted in the utility model is: a kind of temporary ground wire arc transfer and arc-extinction device, it is characterized in that, comprise the choke that designs in insulating bar, arc chamber, first blow-out folder, second blow-out folder, two pairs parallel with one another first in electrode, the second inner electrode and the first external electrode, the second external electrode, wherein electrode is positioned at arc chamber in first, second, as the electric arc generation utmost point; First, second external electrode is positioned at the insulating bar outside, guarantee that two sections first interim earth connections reliably are connected with second earth connection, choke one end links to each other with conductive copper bar, and the other end is connected with electrode in first, and electrode series connection back is connected with the first external electrode in the choke and first.
Aforesaid temporary ground wire arc transfer and arc-extinction device is characterized in that, the first external electrode is connected with interim first earth connection through conductive copper bar, and the second inner electrode and the second external electrode interconnect.
Aforesaid temporary ground wire arc transfer and arc-extinction device, it is characterized in that, under nature, interelectrode distance is less than the distance between first, second external electrode in first, second, the two pairs of asynchronous closures of electrode or disconnection, when promptly closed, electrode closing moment is ahead of first, second external electrode in first, second; During disconnection, electrode disconnects and lags behind first, second external electrode constantly in first, second.
Compared with prior art; advantage of the present utility model is: the utility model is mainly used in UHV transmission line when articulating temporary ground wire; with potential arc transfer between hook and high-voltage line to arc chamber; and press from both sides quick blow-out by blow-out; can effectively avoid high-tension line to ablate, protection operating personnel's safety.
Description of drawings
Fig. 1 is temporary ground wire arc transfer and the arc-extinction device structural representation of the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.
Symbol description in the accompanying drawing: 1, insulating bar; 2, first earth connection; 3, choke; 4, conductive copper bar; 5, spring; 6, arc chamber; 7, the first interior electrode; 8, the second inner electrode; 9, the first external electrode; 10, the second external electrode; 11, first blow-out folder; 12, second blow-out folder; 13, insulation full skirt; 14, insulation pushing rod; 15, second earth connection; 16, push-and-pull operating mechanism.
The utility model embodiment discloses a kind of temporary ground wire arc transfer and arc-extinction device, mainly is made up of choke 3, spring 5, the first interior electrode 7, the second inner electrode 8, the first external electrode 9, the second external electrode 10, arc chamber 6, blow-out folder 11,12, insulation full skirt 13, insulation pushing rod 14 and push-and-pull operating mechanism 16 etc.
Electrode 7, the second inner electrode 8 are series relationship in the choke 3 of this device and first, and be in parallel with the first external electrode 9, the second external electrode 10 then; First electrode 7 is connected through conductive copper bar 4 with the first external electrode 9 with choke 3 series connection backs; The second inner electrode 8 is connected with the second external electrode 9, under nature, electrode 7 in first, the second inner electrode 8 spacings be less than the spacing of the first external electrode 9, the second external electrode 10, and electrode 7 is connected with spring 5 in first, can move up and down the first external electrode 9 fixed-site under external force.
The choke 3 of this device is an inductive element, and is inhibited to the electric current in the earth connection when temporary ground wire contact or disengaging lead.
The arc chamber 6 of this device is made by the are-tight property of height material, and bilateral symmetry is opened two hole slots, installation first blow-out folder 11, second blow-out folder 12 in the groove, and the blow-out folder is supported by little spring, can separate and closure.
This device first in electrode 7 and the first external electrode 9 be connected with interim first earth connection 2, first earth connection 2 can be connected with high-voltage conducting wires by insulating bar; The second inner electrode 8 and the second external electrode 10 are connected second earth connection, 15 ground connection with interim second earth connection 15.
When articulating interim earth connection, the second interim earth connection 15 is connected with ground, first earth connection 2 is connected with high-voltage conducting wires earlier by insulating bar 1, electrode 7, the second inner electrode 8 and the first external electrode 9, the second external electrode 10 all are in off-state in first under nature, and first blow-out folder, 11, second blow-out folder 12 is in closure state.Use the hand propelled push-pull mechanism, the first external electrode, the second external electrode 10 move up under the effect of insulation pull bar, the first external electrode 9 is pushed the blow-out folder open, closed earlier with the first interior electrode 7, connect first earth connection 2 and second earth connection 15, the first interior electrode 7, the second inner electrode 8 and the second external electrode 10 move upward together then, make the first external electrode 9, the second external electrode 10 closures, and the electric current major part in the earth connection is through the first external electrode 9, the second external electrode 10 circulations.
When removing temporary ground wire, under the effect of push-pull mechanism 16, electrode 7, the second inner electrode 8 and the second external electrode 10 move downward together in first, the first external electrode 9, the second external electrode 10 disconnect earlier, electric current this moment electrode 7, the second inner electrode 8 circulations in first, the first interior electrode 7, the second inner electrode 8 separate then, and electrode 7, the second inner electrode 8 can produce electric arc when separating in first; When electrode in first 7, the second inner electrode 8 separately during certain distance, blow-out is clipped in the closure little spring effect under, pinch off electric arc, thus thoroughly disconnect first earth connection 2 and second earth connection 15, arc transfer and extinguishing arc task when finishing temporary ground wire and articulating.
Claims (3)
1. temporary ground wire arc transfer and arc-extinction device, it is characterized in that, comprise the choke (3) that designs in insulating bar (1), arc chamber (6), first blow-out folder (11), second blow-out folder (12), two pairs parallel with one another first in electrode (7), the second inner electrode (8) and the first external electrode (9), the second external electrode (10), wherein electrode is positioned at arc chamber (6) in first, second, as the electric arc generation utmost point; First, second external electrode is positioned at insulating bar (1) outside, guarantee that two sections interim first earth connections (2) reliably are connected with second earth connection (15), choke (3) one ends link to each other with conductive copper bar (4), the other end is connected with electrode (7) in first, and electrode (7) series connection back is connected with the first external electrode (9) in the choke (3) and first.
2. temporary ground wire arc transfer according to claim 1 and arc-extinction device, it is characterized in that, the first external electrode (9) is connected with interim first earth connection (2) through conductive copper bar (4), and the second inner electrode (8) and the second external electrode (10) interconnect.
3. temporary ground wire arc transfer according to claim 1 and arc-extinction device, it is characterized in that, under nature, distance in first between electrode (7), the second inner electrode (8) is less than the distance between the first external electrode (9), the second external electrode (10), the two pairs of asynchronous closures of electrode or disconnection, when promptly closed, electrode (7) in first, the second inner electrode (8) closing moment is ahead of the first external electrode (9), the second external electrode (10); During disconnection, the first interior electrode (7), the second inner electrode (8) disconnect and lag behind the first external electrode (9), the second external electrode (10) constantly.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205656809U CN201985464U (en) | 2010-10-15 | 2010-10-15 | Arc transferring and extinguishing device for temporary grounding wires |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205656809U CN201985464U (en) | 2010-10-15 | 2010-10-15 | Arc transferring and extinguishing device for temporary grounding wires |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985464U true CN201985464U (en) | 2011-09-21 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205656809U Expired - Fee Related CN201985464U (en) | 2010-10-15 | 2010-10-15 | Arc transferring and extinguishing device for temporary grounding wires |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985464U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447233A (en) * | 2010-10-15 | 2012-05-09 | 曾林平 | Arc-transferring and arc-suppressing device for temporary earth wire |
-
2010
- 2010-10-15 CN CN2010205656809U patent/CN201985464U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102447233A (en) * | 2010-10-15 | 2012-05-09 | 曾林平 | Arc-transferring and arc-suppressing device for temporary earth wire |
| CN102447233B (en) * | 2010-10-15 | 2014-05-21 | 西北电网有限公司 | Arc-transferring and arc-suppressing device for temporary earth wire |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110921 Termination date: 20131015 |