CN2629183Y - Non-maintenance lightning arrester for contact network - Google Patents
Non-maintenance lightning arrester for contact network Download PDFInfo
- Publication number
- CN2629183Y CN2629183Y CN 03226018 CN03226018U CN2629183Y CN 2629183 Y CN2629183 Y CN 2629183Y CN 03226018 CN03226018 CN 03226018 CN 03226018 U CN03226018 U CN 03226018U CN 2629183 Y CN2629183 Y CN 2629183Y
- Authority
- CN
- China
- Prior art keywords
- lightning arrester
- contact line
- catenary
- arrester
- disconnector
- 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.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a maintenance-free arrester for the catenary of high-voltage apparatus, the technical problem is that an arrester for the catenary of DC electrified railway is operated without maintenance. The technical solutions are adopted as follows: the utility model comprises an arrester body and an isolation insulator. The arrester is provided with an isolating device for isolating the high voltage of power grid from the arrester when the short trouble of the arrester body and atmosphere over-voltage of the catenary are happened. Compared with the prior art, after the arrester body happens deterioration or short trouble, the fault arrestor body is isolated from the catenary so as to ensure the normal power supply for the catenary; thereby the arrester can be operated in the catenary of DC electrified railway without maintenance, and the reliability of the power supply for the catenary is improved, and the maintenance workload and related costs are reduced significantly. The utility model is applicable for the catenary of DC electrified railway.
Description
Technical field
The utility model relates to a kind of contact line lightning arrester of High-Voltage Electrical Appliances, especially a kind of ac electrified railway contact line lightning arrester.
Background technology
Adopting lightning arrester limiting AC contact nets in electrified railways overvoltage, avoid the railway insulator arc-over, is the effective means that improves ac electrified railway contact line power supply reliability.But the deficiency of ac electrified railway arrester without gaps that contact line adopts protection at present is behind lightning arrester deterioration or short trouble, can cause the electric power system short circuit, causes grave danger for the reliable power supply of contact line.For this reason, railway interests will employ great amount of manpower and material resources lightning arrester is carried out preventive trial, and check is installed on the contact line lightning arrester of contact line shaft tower, and then difficulty and expense are bigger.
Summary of the invention
The purpose of this utility model provides the non-maintaining lightning arrester of a kind of contact line, and the technical problem that solve is the non-maintaining operation of lightning arrester that the ac electrified railway contact line is used.
The utility model is by the following technical solutions: the non-maintaining lightning arrester of a kind of contact line, mainly form by lightning arrester body, isolated insulation etc., it is characterized in that: after described lightning arrester also is provided with a cover and guarantees that atmospheric over-voltage appears in lightning arrester body short trouble or contact line, can be with the spacer assembly of electrical network high pressure with the reliable isolation of lightning arrester.
Spacer assembly of the present utility model is made up of isolated insulation, soft on line, disconnector and binding clip, and an end of disconnector links by binding clip and contact line end, and the other end of disconnector is by soft on line and lightning arrester body connected in electrical series.
Disconnector of the present utility model is a frequency division shunting disconnector.
Spacer assembly of the present utility model is formed guest performer's inter space device by isolated insulation and the clearance electrode that links contact line and lightning arrester body respectively, between the adjacent segment electrode air gap is arranged.
The utility model compared with prior art, lightning arrester adopts spacer assembly, can be behind lightning arrester body generation deterioration or short trouble, realize the isolation of fault lightning arrester body and contact line, guarantee the normal power supply of contact line, thereby realize the non-maintaining operation of lightning arrester, improve the power supply reliability of contact line, significantly reduce maintenance workload and corresponding expense at the ac electrified railway contact line.
Description of drawings
Fig. 1 is the utility model embodiment (one's) a structural representation.
Fig. 2 is the utility model embodiment (twos') a structural representation.
Embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail.As depicted in figs. 1 and 2, the utility model mainly is made up of lightning arrester body 1, isolated insulation 2 etc., after it is characterized in that except that lightning arrester body 1, also being provided with a cover assurance lightning arrester body short trouble, can be with electrical network high pressure and the reliable spacer assembly of isolating of lightning arrester, this spacer assembly mainly is made up of isolated insulation 2, soft on line 3, disconnector 4 and binding clip 5 etc., itself and lightning arrester body 1 connected in electrical series, the logical binding clip 5 of one end of disconnector 4 links with the contact line end, and the other end of disconnector 4 is connected in series with lightning arrester body 1 by soft on line 3; This spacer assembly also can be formed guest performer's inter space device by isolated insulation 2 and clearance electrode 6 etc., and clearance electrode 6 links contact line and lightning arrester body 1 respectively, between the clearance electrode 6 air gap is arranged.
Spacer assembly still can guarantee the normal operation of system under maximum working voltage after making contact line be in state such as short circuit at lightning arrester, and the long-time permanent fault that has a power failure of system can not occur making.After deterioration or short trouble take place in lightning arrester body 1, this device can effectively separate fault lightning arrester body 1 with the contact line high pressure, form big visible gap, guarantee the contact line normal power supply, thereby eliminate of the harm of lightning arrester fault automatically, especially the harm that ac electrified railway is powered to the alternating-current electric power supply.The preventive trial of lightning arrester can not done by railway interests, realizes the non-maintaining operation of ac electrified railway contact line lightning arrester.
The operation principle of one of the utility model specific embodiment structure is:
Connect on the release unit of being made up of major parts such as isolated insulation 2, soft on line 3, frequency division shunting disconnector 4, binding clips 5 and lightning arrester body 1 are electric.
Frequency division shunting disconnector 4 is a short-circuit condition with respect to lightning arrester body 1 before action.
Lightning arrester is under normal operating condition, and various voltages are added on the lightning arrester body 1 by release unit, and lightning arrester is realized various superpotential effective restrictions.
When deterioration after lightning arrester body 1 long-time running or after short trouble occurring, the contact line power current passes through release unit, make frequency division shunting disconnector 4 instantaneous operations, the latter half of frequency division shunting disconnector 4 is under effects such as internal high pressure power and gravity, automatically downward rapid movement, form visible air gap, realize the isolation of fault lightning arrester and contact line, and keep in touch enough insulation distances between net height pressure and the fault lightning arrester.
Two operation principle of the utility model specific embodiment structure is:
Connect on guest performer's inter space device of being made up of major parts such as isolated insulation 2, clearance electrodes 6 and lightning arrester body 1 are electric.
Lightning arrester is under normal operating condition, because the buffer action in guest performer gap, the normal working voltage of contact line is mainly born by guest performer's inter space device, lightning arrester body 1 bears operating voltage hardly and is in " rest " state, effectively avoided the deterioration of lightning arrester resistor disc under contact line supply power voltage long term, slow down the deterioration effect of lightning arrester body 1 greatly, further improved operational reliability.
When atmospheric over-voltage appears in system; the air gap discharge breakdown makes the resistor disc of lightning arrester body present low resistance, with overvoltage Limiting at reduced levels; reliably prevent the flashover of protected ac electrified railway insulator, avoided the lightning stroke trip of contact line.
When deterioration after lightning arrester body 1 long-time running or after short trouble occurring,, still can keep the normal operating condition of ac electrified railway contact net system owing to the buffer action in guest performer gap.
Claims (4)
1. non-maintaining lightning arrester of contact line, mainly form by lightning arrester body, isolated insulation etc., it is characterized in that: after described lightning arrester is provided with a cover and guarantees that atmospheric over-voltage appears in lightning arrester body short trouble or contact line, can be with the spacer assembly of electrical network high pressure with the reliable isolation of lightning arrester.
2. the non-maintaining lightning arrester of contact line according to claim 1, it is characterized in that: described spacer assembly is made up of isolated insulation (2), soft on line (3), disconnector (4) and binding clip (5), one end of disconnector (4) links by binding clip (5) and contact line end, and the other end of disconnector (4) is by soft on line (3) and lightning arrester body (1) connected in electrical series.
3. the non-maintaining lightning arrester of contact line according to claim 2 is characterized in that: described disconnector (4) is a frequency division shunting disconnector.
4. the non-maintaining lightning arrester of contact line according to claim 1, it is characterized in that: described spacer assembly is by isolated insulation (2) and link contact line respectively and the clearance electrode of lightning arrester body (1) (6) is formed guest performer's inter space device, and the adjacent segment electrode has the air gap between (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226018 CN2629183Y (en) | 2003-05-09 | 2003-05-09 | Non-maintenance lightning arrester for contact network |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03226018 CN2629183Y (en) | 2003-05-09 | 2003-05-09 | Non-maintenance lightning arrester for contact network |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2629183Y true CN2629183Y (en) | 2004-07-28 |
Family
ID=34246310
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03226018 Expired - Fee Related CN2629183Y (en) | 2003-05-09 | 2003-05-09 | Non-maintenance lightning arrester for contact network |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2629183Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561612C (en) * | 2007-04-25 | 2009-11-18 | 中国电力科学研究院 | Super, system for ultra-high voltage transmission controllable metal oxide arrester |
| CN103944109A (en) * | 2014-05-20 | 2014-07-23 | 国网上海市电力公司 | Neck insulating and isolating device of 10-kV column type insulator |
| CN106251995A (en) * | 2016-09-12 | 2016-12-21 | 红光电气集团有限公司 | A kind of anti-lightening protector |
-
2003
- 2003-05-09 CN CN 03226018 patent/CN2629183Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100561612C (en) * | 2007-04-25 | 2009-11-18 | 中国电力科学研究院 | Super, system for ultra-high voltage transmission controllable metal oxide arrester |
| CN103944109A (en) * | 2014-05-20 | 2014-07-23 | 国网上海市电力公司 | Neck insulating and isolating device of 10-kV column type insulator |
| CN103944109B (en) * | 2014-05-20 | 2016-08-24 | 国网上海市电力公司 | A kind of 10KV pillar insulator cervical region insulated isolated device |
| CN106251995A (en) * | 2016-09-12 | 2016-12-21 | 红光电气集团有限公司 | A kind of anti-lightening protector |
| CN106251995B (en) * | 2016-09-12 | 2018-09-21 | 红光电气集团有限公司 | A kind of anti-lightening protector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN202444178U (en) | Electric locomotive interior network side cabinet | |
| CN201478816U (en) | Air blowing and variable gap arc extinguishing lightning protection gap device | |
| CN201307473Y (en) | Lightning protector for 10 kV line | |
| CN201699161U (en) | Contact-type ground bar | |
| CN2629183Y (en) | Non-maintenance lightning arrester for contact network | |
| CN201348907Y (en) | Lightning protector of 10kV line | |
| CN202940080U (en) | Direct current arrester | |
| CN205177523U (en) | Novel arrester device | |
| CN112332220A (en) | Built-in series gap lightning arrester of distribution line | |
| CN103178363B (en) | Grounding device for lightning impulse | |
| CN204706772U (en) | One ± 800kV extra high voltage direct current transmission line arrester device | |
| CN206558426U (en) | A kind of outdoor vacuum circuit breaker | |
| CN201804644U (en) | Ring electrode lightning arrester for contact network of urban mass transit | |
| CN202363191U (en) | 10 kV line lighting arrester | |
| CN2472335Y (en) | Automatic vacuum load switch on post | |
| CN201498289U (en) | 10 KV post lightning arrester | |
| CN207442184U (en) | The fixation external series gap lightning arrester that a kind of low residual voltage, deterioration can be shown | |
| CN101950647B (en) | Ball-end electrode lightning arrester of urban rail transit contact system | |
| CN103681018A (en) | Buffer device capable of preventing high-voltage grounding switch from inductive discharge | |
| CN206878312U (en) | A kind of combined pin type arrester | |
| CN203166104U (en) | Lightning impulse grounding device | |
| CN2867562Y (en) | Electric power locomotive combined switch device | |
| CN2456279Y (en) | Zinc oxide lightning arrester for power lines | |
| CN201072678Y (en) | Composite casing metal oxide arrester for maintenance-free alternating current electric power line | |
| CN218241461U (en) | Lightning protection device for 10kV rod-shaped composite insulator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |