CN203645247U - Insulating rod with arc-extinguishing device, and arc-transferring and arc-extinguishing device - Google Patents
Insulating rod with arc-extinguishing device, and arc-transferring and arc-extinguishing device Download PDFInfo
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- CN203645247U CN203645247U CN201320844793.6U CN201320844793U CN203645247U CN 203645247 U CN203645247 U CN 203645247U CN 201320844793 U CN201320844793 U CN 201320844793U CN 203645247 U CN203645247 U CN 203645247U
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Abstract
The utility model relates to the field of line safety maintenance operation; and especially relates to an insulating rod with an arc-extinguishing device, and an arc-transferring and arc-extinguishing device. A push-and-pull operating mechanism is adopted to be fixed outside the insulating rod, the push-and-pull operating mechanism moves up and down to drive an insulating push-and-pull rod to move up and down and further to control the opening and closing of a first inner electrode, a second inner electrode, a first outer electrode and a second outer electrode, so that an operator does not need to directly contact a grounding wire in the hitching process, and the danger of the operation is reduced; in addition, an eight-segment structure is adopted by the device, so that the insulating rod is suitable for lines different in height; and the structure is simple, and the operation is convenient.
Description
Technical field
The utility model relates to line security inspection operation field, particularly a kind of band arc-extinction device insulating bar and arc transfer and arc-extinction device.
Background technology
500KV common-tower double-return circuit is in service, and in the time that circuit need to overhaul, possible mode is common-tower double-return circuit one loop line road charging operation, another loop line road interruption maintenance, and maintainer will hang earth connection on the wire of the maintenance region of dead line.At this moment, owing to having electrostatic coupling and electromagnetic coupled between two loop line roads, on the loop of interruption maintenance, produce induced voltage, the safety of giving service work personnel is brought to certain threat; After earth connection contacts with wire, on earth connection, will flow through certain induced current, faradic size is relevant with another working line institute's on-load and line construction.If induced current is larger, contact with wire at earth connection or moment of departing from can produce very large electric arc, electric arc produces the high temperature wire of can burning, and causes disconnected strand of wire when serious.
The mode that articulates of general transmission line temporary ground wire has to adopt and connects behaviour's bar and articulate the mode articulating from cross arm of tower with hand-held temporary ground wire downwards.500KV same tower double back transmission line insulator string total length approaches 9m, if adopt temporary ground wire directly to articulate mode downwards by cross-arm, deposits problem both ways:
1. due to wire hook, amplitude of fluctuation is larger with the wind, temporary ground wire to articulate difficulty larger;
2. while articulating, operating personnel directly contact earth connection, have very large potential safety hazard.
500KV same tower double back transmission line, a loop line road operation when loop line road interruption maintenance, can produce very high induced voltage and induced current on maintenance circuit.In the time that maintenance circuit is unsettled, its induced voltage can reach 15kV, and when single-point grounding, induced voltage can reach 9kV, and when maintenance circuit two-terminal-grounding, induced voltage can reach 5kV.Maximum current in maintenance circuit grounding switch and temporary ground wire can approach 200A.
Because same tower double back transmission line produces very high induced voltage and induced current, so the maintenance of 500KV same tower double back transmission line must meet two conditions with temporary ground wire and hanging device:
1. the cross section of temporary ground wire must meet the requirement of earth connection maximum carrying capacity 200A;
2. temporary grounding line hanging device must have arc eliminator.
Summary of the invention
For the deficiency of background technology, the utility model adopts push-and-pull operating mechanism to be fixed on insulating bar outside, it moves up and down and can drive insulation push-and-pull rod to move up and down, and then control disconnection or the closure of the first interior electrode, the second inner electrode, the first external electrode, the second external electrode, realize operating personnel while articulating and can directly not contact earth connection, lowered the danger of operation.Eight sections of drawing and pulling type structures of this device employing simultaneously can adapt to the circuit of differing heights, and simple in structure, easy to operate.
The technical solution of the utility model is: a kind of band arc-extinction device insulating bar, comprise conductive copper bar, arc chamber, the first interior electrode, the second inner electrode, the first external electrode, the second external electrode, the first blow-out folder, the second blow-out folder, insulation push-and-pull rod, push-and-pull operating mechanism, arc chamber is arranged between the first interior electrode and the first external electrode press from both sides with the first blow-out folder, the second blow-out; The first blow-out folder, the second blow-out folder below arrange the second inner electrode and the second external electrode, conductive copper bar and the first external electrode are an entirety, the second inner electrode and the second external electrode are an entirety, it is characterized in that: push-and-pull operating mechanism is fixed on insulating bar outside, it moves up and down and can drive insulation push-and-pull rod to move up and down, and then controls disconnection or the closure of the first interior electrode, the second inner electrode, the first external electrode, the second external electrode.
Band arc-extinction device insulating bar as above, is characterized in that: also comprise choke, choke connects external ground line and the first interior electrode.
Band arc-extinction device insulating bar as above, is characterized in that: also comprise that spring, spring are arranged on the first interior electrode and the first external electrode, can make push-and-pull operating mechanism automatically reset.
Band arc-extinction device insulating bar as above, is characterized in that: also comprise insulation full skirt, insulation full skirt is arranged on the outside of insulation push-and-pull rod.
A kind of arc transfer and arc-extinction device, comprise band arc-extinction device insulating bar as above, intermediate insulation bar, expansion link, intermediate insulation bar is connected with band arc-extinction device insulating bar and expansion link respectively, it is characterized in that: the earth connection of expansion link is connected with conductive copper bar.
Arc transfer as above and arc-extinction device, is characterized in that: described expansion link is collapsible.
Brief description of the drawings
Fig. 1 is general structure schematic diagram of the present invention;
Fig. 2 is the structural representation with arc-extinction device insulating bar of native system.
Embodiment
Description of reference numerals: in accompanying drawing 1,101-hook, 102-expansion link, 103-intermediate insulation bar, 104-band arc-extinction device insulating bar; In accompanying drawing 2,1-connecting thread, 2-earth connection, 3-choke, 4-conductive copper bar, 5-spring, 6-arc chamber, the 7-the first interior electrode, 8-the second inner electrode, 9-the first external electrode, 10-the second external electrode, the 11-the first blow-out folder, the 12-the second blow-out folder, 13-insulation full skirt, 14-insulation push-and-pull rod, 15-temporary ground wire, 16-push-and-pull operating mechanism
Below in conjunction with accompanying drawing, the utility model is described further.
As shown in Figure 2, band arc-extinction device insulating bar 104 of the present utility model comprises explosion chamber and contacts make and break mouth with prescribed electrode, comprise connecting thread 1, choke 3, conductive copper bar 4, spring 5, arc chamber 6, the first interior electrode 7, the second inner electrode 8, the first external electrode 9, the second external electrode 10, the first blow-out folder 11, the second blow-out folder 12, insulation full skirt 13, insulation push-and-pull rod 14, push-and-pull operating mechanism 16, wherein explosion chamber comprises choke 3, spring 5, arc chamber 6, the first interior electrode 7, the second inner electrode 8, the first blow-out folder 11, the second blow-out folder 12; Outside prescribed electrode comprises conductive copper bar 4, the first external electrode 9, the second external electrode 10.Connecting thread 1 is for being connected with intermediate insulation bar 103, intermediate insulation bar 103 is connected with expansion link 102, expansion link 102 earth connections 2 are connected with conductive copper bar 4, and be connected to one end of choke 3, the other end of choke 3 is connected with the first interior electrode 7, conductive copper bar 4 is an entirety with the first external electrode 9, and the second inner electrode 8 is an entirety with the second external electrode 10, and temporary ground wire 15 is connected with the second external electrode 10.
Spring 5 of the present utility model is arranged on the first interior electrode 7 and the first external electrode 9, and effect is that push-and-pull operating mechanism 16 can be automatically reset.Choke 3 connects earth connection 2 and the first interior electrode 7, current break when choke 3 can stop interior electrode contact like this, to reduce electric arc, arc chamber 6 is arranged between the first interior electrode 7 and the first external electrode 9 and the first blow-out folder 11, the second blow-out folder 12, the electric arc producing can extinguish the first interior electrode 7 and contact with the second inner electrode 8 time; The first blow-out folder 11, the second blow-out are pressed from both sides 12 belows the second inner electrode 8 and the second external electrode 10 are set.Insulation full skirt 13 is arranged on the outside of insulation push-and-pull rod 14.Push-and-pull operating mechanism 16 is fixed on the outside of this device, and it moves up and down and can drive insulation push-and-pull rod 14 to move up and down, and then controls disconnection or the closure of the first interior electrode 7, the second inner electrode 8, the first external electrode 9, the second external electrode 10.
This device is that action bars articulates mode, and temporary ground wire articulates operating means as shown in Figure 1.Action bars is made up of two parts, between each several part by being threaded.Part I is connected with hook, eight sections of drawing and pulling type structures, and every segment length 1m, all stretches out, total length 8m.Part II is made up of intermediate insulation bar and band arc-extinction device insulating bar, is wherein with the about 1.25m of arc-extinction device insulating bar length, and bar contains explosion chamber, and bar has prescribed electrode contact make and break mouth outward, Gan Neiyou corresponding operating mechanism, and its detailed structure is as shown in Figure 2.
The course of work of the present utility model is: in the time articulating temporary ground wire, temporary ground wire 15 is connected with ground, earth connection 2 is connected with high-voltage conducting wires by the hook 101 of the first front end of insulating bar, under nature, the first interior electrode 7, the second inner electrode 8 and the first external electrode 9, the second external electrode 10 are all in off-state, and the first blow-out folder 11, the second blow-out folder 12 are in closure state.
With hand propelled push-pull mechanism 16, under the effect of insulation push-and-pull rod 14, the second inner electrode 8, the second external electrode 10 move up, the second inner electrode 8 is pushed the second blow-out folder 12 open, first closed with the first interior electrode 7, connect earth connection 2 and temporary ground wire 15, then the first interior electrode 7, the second inner electrode 8, the second external electrode 10 move upward together, make the first external electrode 9, the second external electrode 10 closures, electric current major part in earth connection circulates through the first external electrode 9, the second external electrode 10, and wire is connected with the earth.
While removing temporary ground wire, under the effect of push-and-pull operating mechanism 16, the first interior electrode 7, the second inner electrode 8, the second external electrode 10 move downward together, the first external electrode 9, the second external electrode 10 first disconnect, now electric current circulates through the first interior electrode 7, the second inner electrode 8, then the first interior electrode 7, the second inner electrode 8 separate, and can produce electric arc at the first interior electrode 7, the second inner electrode 8 while separation; In the time that the first interior electrode 7, the second inner electrode 8 are separated by a distance, the first blow-out folder 11 is closed under little spring 5 effects, pinch off electric arc, thus thoroughly disconnect earth connection 2 and temporary ground wire 15, arc transfer and extinguishing arc task when completing temporary ground wire and articulating.
The mode that articulates of general transmission line temporary ground wire has the mode that adopts hand-held temporary ground wire to articulate from cross arm of tower downwards, and this mode is deposited problem both ways: 1. due to wire hook, amplitude of fluctuation is larger with the wind, temporary ground wire to articulate difficulty larger; 2. while articulating, operating personnel directly contact earth connection, have very large potential safety hazard.This device is that action bars articulates mode and can avoid two problems.In this device, be furnished with arc transfer and arc-extinction device, can effectively eliminate electric arc.Eight sections of drawing and pulling type structures of this device employing can adapt to the circuit of differing heights, and simple in structure, easy to operate.
Claims (6)
1. a band arc-extinction device insulating bar, comprise conductive copper bar, arc chamber, the first interior electrode, the second inner electrode, the first external electrode, the second external electrode, the first blow-out folder, the second blow-out folder, insulation push-and-pull rod, push-and-pull operating mechanism, arc chamber is arranged between the first interior electrode and the first external electrode press from both sides with the first blow-out folder, the second blow-out; The first blow-out folder, the second blow-out folder below arrange the second inner electrode and the second external electrode, conductive copper bar and the first external electrode are an entirety, the second inner electrode and the second external electrode are an entirety, it is characterized in that: push-and-pull operating mechanism is fixed on insulating bar outside, it moves up and down and can drive insulation push-and-pull rod to move up and down, and then controls disconnection or the closure of the first interior electrode, the second inner electrode, the first external electrode, the second external electrode.
2. band arc-extinction device insulating bar as claimed in claim 1, is characterized in that: also comprise choke, choke connects external ground line and the first interior electrode.
3. band arc-extinction device insulating bar as claimed in claim 1, is characterized in that: also comprise that spring, spring are arranged on the first interior electrode and the first external electrode, can make push-and-pull operating mechanism automatically reset.
4. band arc-extinction device insulating bar as claimed in claim 1, is characterized in that: also comprise insulation full skirt, insulation full skirt is arranged on the outside of insulation push-and-pull rod.
5. an arc transfer and arc-extinction device, comprise any band arc-extinction device insulating bar, intermediate insulation bar, expansion link as described in claim 1 to 4, intermediate insulation bar is connected with band arc-extinction device insulating bar and expansion link respectively, it is characterized in that: the earth connection of expansion link is connected with conductive copper bar.
6. arc transfer as claimed in claim 5 and arc-extinction device, is characterized in that: described expansion link is collapsible.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844793.6U CN203645247U (en) | 2013-12-20 | 2013-12-20 | Insulating rod with arc-extinguishing device, and arc-transferring and arc-extinguishing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320844793.6U CN203645247U (en) | 2013-12-20 | 2013-12-20 | Insulating rod with arc-extinguishing device, and arc-transferring and arc-extinguishing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203645247U true CN203645247U (en) | 2014-06-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320844793.6U Expired - Fee Related CN203645247U (en) | 2013-12-20 | 2013-12-20 | Insulating rod with arc-extinguishing device, and arc-transferring and arc-extinguishing device |
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| Country | Link |
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| CN (1) | CN203645247U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301292A (en) * | 2015-11-11 | 2016-02-03 | 国家电网公司 | Telescoping high voltage insulating rod |
| CN105870844A (en) * | 2016-04-01 | 2016-08-17 | 云南电网有限责任公司临沧供电局 | Arc extinction apparatus used for drainage wire electrified disconnection-connection operation of 35kV substation equipment and use method |
| CN108831768A (en) * | 2018-07-26 | 2018-11-16 | 芜湖市容川机电科技股份有限公司 | Electric control insulated pull rod is matched in casting |
-
2013
- 2013-12-20 CN CN201320844793.6U patent/CN203645247U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105301292A (en) * | 2015-11-11 | 2016-02-03 | 国家电网公司 | Telescoping high voltage insulating rod |
| CN105301292B (en) * | 2015-11-11 | 2018-09-21 | 国家电网公司 | A kind of telescopic high voltage insulating bar |
| CN105870844A (en) * | 2016-04-01 | 2016-08-17 | 云南电网有限责任公司临沧供电局 | Arc extinction apparatus used for drainage wire electrified disconnection-connection operation of 35kV substation equipment and use method |
| CN105870844B (en) * | 2016-04-01 | 2018-09-28 | 云南电网有限责任公司临沧供电局 | The operational method of the arc-extinction device of disconnecting operation is charged for 35kV substation equipment drainage threads |
| CN108831768A (en) * | 2018-07-26 | 2018-11-16 | 芜湖市容川机电科技股份有限公司 | Electric control insulated pull rod is matched in casting |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140611 Termination date: 20201220 |