CN106684833A - Power frequency current-prevention discharge gap device - Google Patents
Power frequency current-prevention discharge gap device Download PDFInfo
- Publication number
- CN106684833A CN106684833A CN201710121752.7A CN201710121752A CN106684833A CN 106684833 A CN106684833 A CN 106684833A CN 201710121752 A CN201710121752 A CN 201710121752A CN 106684833 A CN106684833 A CN 106684833A
- Authority
- CN
- China
- Prior art keywords
- power frequency
- discharging gap
- frequency current
- discharge gap
- current limiter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000005540 biological transmission Effects 0.000 claims abstract description 15
- 238000007599 discharging Methods 0.000 claims description 48
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 230000005611 electricity Effects 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 239000012212 insulator Substances 0.000 abstract description 5
- 238000011900 installation process Methods 0.000 abstract description 2
- 230000015556 catabolic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000004020 conductor Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/22—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/226—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for distribution gear, e.g. bus-bar systems; for switching devices for wires or cables, e.g. heating wires
Landscapes
- Insulators (AREA)
Abstract
The invention relates to the technical field of protection of a high-voltage power transmission line. A power frequency current-prevention discharge gap device provided by the invention comprises a support insulator, a discharge gap plate, a discharge gap lower electrode and a grounding pole plate, wherein a first end of the support insulator is connected with a first end of the discharge gap plate, a second end of the support insulator is connected with a first end of the grounding pole plate, the power frequency current-prevention discharge gap is characterized by also comprising a power frequency current limiter and a current diversion device, the power frequency current limiter is connected with a second end of the grounding pole plate, a top of the power frequency current limiter is connected with the discharge gap lower electrode, and the current diversion device is connected with the first end of the support insulator. By the device, the distance of a discharge gap is not needed to be adjusted, the equipment performance is prevented from being affected due to a site installation process, and the device is simple and convenient to install; and moreover, the device is long in service lifetime, and the power frequency current also can be prevented.
Description
Technical field
The present invention relates to ultra-high-tension power transmission line resist technology field, more particularly to a kind of anti-power frequency continued flow discharging gap dress
Put.
Background technology
At present, major part is protected using installing by the way of leakage conductor to circuit on ultra-high-tension power transmission line.
During without overvoltage, spark gap bears for a long time power frequency continuous running voltage, greatly shortens the service life of leakage conductor, affects to keep away
The protective value of thunder device；Meanwhile, in thunderbolt than more serious area, often there is soil resistivity height, overhead line structures are grounded not
Good problem, when there is overvoltage, the spark gap on circuit thoroughly can not effectively discharge high current, will form power frequency and continue
Stream vibrates in the line, so as to cause the voltage on circuit to rise, injures the safety of equipment on circuit.
There is partial high pressure transmission line of electricity to adopt parallel spark gap（Such as lightning protection hardware, overvoltage protection device）Mode is to line
Road is protected, and this mode needs the artificial size that discharging gap is adjusted according to the practical situation of circuit mount point so as to full
The condition of sufficient air breakdown, therefore the mounting process at scene has influence on to a certain extent the route protection performance of equipment.
The content of the invention
In order to overcome the deficiencies in the prior art, the invention provides a kind of have fixed discharging gap, install simple and convenient,
And long service life, can prevent the high voltage transmission line line protection device of power frequency continued flow.
To realize the purpose, the present invention provides following technical scheme：
A kind of anti-power frequency continued flow discharging gap apparatus, including supports insulative, discharging gap plate, discharging gap bottom electrode and ground connection
Pole plate, the first end of the supports insulative be connected with the first end of discharging gap plate, the second sub end of the supports insulative and
The first end connection of ground connection pole plate, it is characterised in that：Also include power frequency current limiter and drainage system, the power frequency current limiter with connect
The second end connection of ground pole plate, the top of power frequency current limiter is connected with discharging gap bottom electrode, the drainage system with described
The first end connection of support insulator.
Further, the drainage system includes wire clamp and the drain wire being fixed on wire clamp, the wire clamp fixed installation
On ultra-high-tension power transmission line, one end of the drain wire is connected with the first end of supports insulative.
Further, discharging gap plate one end lower surface corresponding with the discharging gap bottom electrode is provided with sphere and dashes forward
Rise.
Further, formed between the atmospherical discharges with fixed range between the sphere projection and discharging gap bottom electrode
Gap.
Further, the power frequency current limiter be spark gap, Anti-surging device or other there is the device of power frequency current-limiting function.
Further, the ground connection pole plate is mounted by means of bolts on the shaft tower angle steel of transmission line of electricity.
The invention has the beneficial effects as follows：
1）Atmospherical discharges gap due to having defined fixed range between discharging gap plate and discharging gap bottom electrode, therefore
Regardless of line conditions during installation, the distance of discharging gap all manually need not be again adjusted, be reduced because of field installation process
Problem affects the performance of equipment.
2）In the case of ultra-high-tension power transmission line normal operating voltage, because discharging gap plate and discharging gap bottom electrode do not have
Path is formed, power frequency current limiter is not subject to circuit operation power-frequency voltage, therefore can extend the service life of power frequency current limiter.
3）Most of energy can be discharged by atmospherical discharges gap discharge when line over-voltage occurs, reduce power frequency limit
The load of stream device, overvoltage energy is obtained after effectively release, and power frequency current limiter can in time block discharging gap plate and discharging gap
Power frequency continued flow between bottom electrode, therefore infield need not ensure good earth.
Description of the drawings
Technical scheme in order to be illustrated more clearly that the embodiment of the present invention, below will be to making needed for embodiment description
Accompanying drawing is briefly described, it should be apparent that, drawings in the following description are only some embodiments of the present invention, for
For those of ordinary skill in the art, on the premise of not paying creative work, can be obtaining other according to these accompanying drawings
Accompanying drawing.
Fig. 1 is the structure chart of the anti-power frequency continued flow discharging gap apparatus of the present invention.
Fig. 2 is that the present invention is fixedly mounted on the device overall structure figure after ultra-high-tension power transmission line.
Description of reference numerals：
1-drainage system, 2-discharging gap plate, 3-discharging gap bottom electrode, 4-power frequency current limiter, 5-ground connection pole plate, 6-
Supports insulative, 7-drain wire, 8-sphere projection, 9-ultra-high-tension power transmission line, 10-shaft tower angle steel, 11-wire clamp.
Specific embodiment
Referring to the drawings 1, between a kind of anti-power frequency continued flow discharging gap apparatus, including drainage system 1, discharging gap plate 2, electric discharge
Gap bottom electrode 3, power frequency current limiter 4, ground connection pole plate 5 and supports insulative 6.The first end of supports insulative 6 passes through bolt
The drain wire 7 in first end, drainage system 1 with discharging gap plate 2 is connected, and the second end of supports insulative 6 passes through
Bolt is connected with the first end of ground connection pole plate 5.Second end of the ground connection pole plate 5 is connected by bolt with power frequency current limiter 4, institute
The top for stating power frequency current limiter 4 is connected with discharging gap bottom electrode 3.Second end lower surface of the discharging gap plate 2 has ball
Face projection 8.
Referring to the drawings 2, the drainage system 1 includes wire clamp 11 and the drain wire 7 being fixed on wire clamp 11, the wire clamp
11 are fixedly mounted on ultra-high-tension power transmission line 9, and the drain wire 7 is connected with the first end of supports insulative 6.It is described to connect
Ground pole plate 5 is mounted by means of bolts on shaft tower angle steel 10.
Because the height value of supports insulative is fixed, therefore the discharging gap bottom electrode 3 and the sphere projection 8
Between formed with fixed range atmospherical discharges gap.
When ultra-high-tension power transmission line meets with thunderbolt or overvoltage occurs, overvoltage is led by the drain of the drainage system 1
Line 7 is applied to the discharging gap plate 2, when sphere projection 8 and the electricity under the discharging gap of the lower surface of discharging gap plate 2
When fixed the air gap between pole 3 meets air breakdown condition, fixed the air gap is breakdown, now overvoltage produce it is big
Electric current flows into the earth by fixed the air gap and the power frequency current limiter 4, and overvoltage energy is obtained after effectively release, the work
The power frequency continued flow that frequency current limiter 4 is blocked in time between discharging gap plate 2 and discharging gap bottom electrode 3, makes circuit recover normal.
In the case of ultra-high-tension power transmission line normal operating voltage, due under the discharging gap plate 2 and the discharging gap
Electrode 3 does not form path, therefore the power frequency current limiter 4 is not subject to circuit operation power-frequency voltage, can extend the power frequency
The service life of current limiter 4.
The invention has fixed discharging gap, installs simple and convenient, and long service life, can prevent the high pressure of power frequency continued flow
Line protection.
Certainly above-described embodiment technology design only to illustrate the invention and feature, its object is to allow and are familiar with technique
People will appreciate that present disclosure and implement according to this, can not be limited the scope of the invention with this.It is all according to this
Equivalent transformation or modification that the spirit of bright main technical schemes is done, all should be included within the scope of the present invention.
Claims (6)
1. a kind of anti-power frequency continued flow discharging gap apparatus, including supports insulative, discharging gap plate, discharging gap bottom electrode and connect
Ground pole plate, the first end of supports insulative is connected with the first end of discharging gap plate, the second end of supports insulative
It is connected with the first end of ground connection pole plate, it is characterised in that：Also include power frequency current limiter and drainage system, the power frequency current limiter with
The second end connection of ground connection pole plate, the top of power frequency current limiter is connected with discharging gap bottom electrode, the drainage system with it is described
The first end connection of supports insulative.
2. a kind of anti-power frequency continued flow discharging gap apparatus as claimed in claim 1, it is characterised in that：The drainage system includes
Wire clamp and the drain wire being fixed on wire clamp, the wire clamp is fixedly mounted on ultra-high-tension power transmission line, the drain wire
One end is connected with the first end of supports insulative.
3. a kind of anti-power frequency continued flow discharging gap apparatus as claimed in claim 1, it is characterised in that：The discharging gap plate with
The corresponding one end lower surface of the discharging gap bottom electrode is provided with sphere projection.
4. a kind of anti-power frequency continued flow discharging gap apparatus as claimed in claim 3, it is characterised in that：The sphere projection with put
The atmospherical discharges gap with fixed range is formed between electric gap bottom electrode.
5. a kind of anti-power frequency continued flow discharging gap apparatus as described in one of aforementioned any one claim, it is characterised in that：Institute
State power frequency current limiter for spark gap, Anti-surging device or other there is the device of power frequency current-limiting function.
6. a kind of anti-power frequency continued flow discharging gap apparatus as claimed in claim 1, it is characterised in that：The ground connection pole plate passes through
Bolt is fixedly mounted on the shaft tower angle steel of transmission line of electricity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121752.7A CN106684833A (en) | 2017-03-02 | 2017-03-02 | Power frequency current-prevention discharge gap device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710121752.7A CN106684833A (en) | 2017-03-02 | 2017-03-02 | Power frequency current-prevention discharge gap device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106684833A true CN106684833A (en) | 2017-05-17 |
Family
ID=58862487
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710121752.7A Pending CN106684833A (en) | 2017-03-02 | 2017-03-02 | Power frequency current-prevention discharge gap device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106684833A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137934A (en) * | 2019-05-30 | 2019-08-16 | 广州开能电气实业有限公司 | Discharging gap structure and without power frequency continued flow discharging gap apparatus |
| CN113258450A (en) * | 2021-05-12 | 2021-08-13 | 广东景呈电力设备有限公司 | Smart power grids is with thunderbolt limiter and transformer platform frame |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108187A (en) * | 1995-11-17 | 2000-08-22 | Streamer Electric Company, Inc. | Electric power transmission line with protection devices against lightning overvoltages |
| CN202103418U (en) * | 2011-06-30 | 2012-01-04 | 保定市唐北电瓷电器有限公司 | Over-voltage protector for preventing insulated conductor from being broken by lightning strike |
| CN203983931U (en) * | 2014-06-24 | 2014-12-03 | 浙江天虹电气金具有限公司 | A kind of anti-thunder insulator overvoltage protection device |
| CN204905826U (en) * | 2015-08-25 | 2015-12-23 | 南京紫峰电力设备有限公司 | Take disconnector fixed interval overvoltage protection device |
| CN205141649U (en) * | 2015-12-02 | 2016-04-06 | 保定通力电器设备有限公司 | Over -voltage protector |
| CN206542183U (en) * | 2017-03-02 | 2017-10-03 | 广州开能电气实业有限公司 | A kind of anti-power frequency continued flow discharging gap apparatus |
-
2017
- 2017-03-02 CN CN201710121752.7A patent/CN106684833A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6108187A (en) * | 1995-11-17 | 2000-08-22 | Streamer Electric Company, Inc. | Electric power transmission line with protection devices against lightning overvoltages |
| CN202103418U (en) * | 2011-06-30 | 2012-01-04 | 保定市唐北电瓷电器有限公司 | Over-voltage protector for preventing insulated conductor from being broken by lightning strike |
| CN203983931U (en) * | 2014-06-24 | 2014-12-03 | 浙江天虹电气金具有限公司 | A kind of anti-thunder insulator overvoltage protection device |
| CN204905826U (en) * | 2015-08-25 | 2015-12-23 | 南京紫峰电力设备有限公司 | Take disconnector fixed interval overvoltage protection device |
| CN205141649U (en) * | 2015-12-02 | 2016-04-06 | 保定通力电器设备有限公司 | Over -voltage protector |
| CN206542183U (en) * | 2017-03-02 | 2017-10-03 | 广州开能电气实业有限公司 | A kind of anti-power frequency continued flow discharging gap apparatus |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110137934A (en) * | 2019-05-30 | 2019-08-16 | 广州开能电气实业有限公司 | Discharging gap structure and without power frequency continued flow discharging gap apparatus |
| CN110137934B (en) * | 2019-05-30 | 2023-12-19 | 广州开能电气技术有限公司 | Discharge gap structure and non-power frequency follow current discharge gap device |
| CN113258450A (en) * | 2021-05-12 | 2021-08-13 | 广东景呈电力设备有限公司 | Smart power grids is with thunderbolt limiter and transformer platform frame |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN207701299U (en) | A kind of breakdown prevention type wind electricity blade lightning arrester | |
| CN206595098U (en) | Combine disc type Multiple level arrester | |
| CN111740349A (en) | A kind of overhead ground wire configuration method and overhead ground wire for distribution network | |
| CN206542183U (en) | A kind of anti-power frequency continued flow discharging gap apparatus | |
| CN106684833A (en) | Power frequency current-prevention discharge gap device | |
| CN104882876A (en) | Extra-high voltage DC grounding electrode circuit protection system | |
| CN106025992B (en) | Insulated wire straight line pole arrester | |
| CN207265416U (en) | A kind of 10kV exchanges overhead transmission line arc blowing type lightning protection device | |
| CN103138254B (en) | Adjustable excess voltage protective gap fine lightning protection method of power distribution network | |
| CN206640285U (en) | A kind of power equipment lightning arrester | |
| CN110535088B (en) | Fixed pure air gap line lightning protection device capable of being replaced in electrified mode | |
| CN201072678Y (en) | Maintenance-free AC transmission line composite jacket metal oxide arrester | |
| CN209344514U (en) | The device of steel tower tower head overvoltage when a kind of inhibition transmission line lightning stroke | |
| CN112054459A (en) | Lightning protection method for distribution line | |
| CN104734102A (en) | Alternating current transmission line iron tower | |
| CN105655962A (en) | Novel lightning protection device of overhead distribution line | |
| CN103812010A (en) | Two-stage series gap lightning flashover protector with discharge counter | |
| CN111666662B (en) | Single-phase collinear installation method for parallel connection gap of 10kV overhead line | |
| CN205646747U (en) | 800 kilovolt direct current line gap installation device | |
| CN108735402A (en) | A kind of overvoltage automatic adjustment protective device | |
| CN203496704U (en) | Lightning strike restraining type overhead contact system of electrified rail tractive power supply system | |
| CN201541112U (en) | Lightning collection device for overhead distribution wire | |
| CN223260402U (en) | Compact arrester suitable for high-voltage transmission line | |
| CN204464915U (en) | Transmission line of alternation current steel tower | |
| CN205986080U (en) | Circuit flashover protector |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170517 |