CN205335020U - 750kV exchanges arrester - Google Patents
750kV exchanges arrester Download PDFInfo
- Publication number
- CN205335020U CN205335020U CN201521141436.9U CN201521141436U CN205335020U CN 205335020 U CN205335020 U CN 205335020U CN 201521141436 U CN201521141436 U CN 201521141436U CN 205335020 U CN205335020 U CN 205335020U
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- arrester
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- alternating
- ring
- lightning arrestor
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Abstract
The utility model discloses a 750kV exchanges arrester, unit of an arrester including a plurality of series connection, upper end unit of an arrester top is provided with the second and prevents the halo, the second prevents that the top of halo is connected with the first halo of preventing, the below is connected with the equalizer ring, lower extreme unit of an arrester's bottom is provided with the insulator foot, be fixed with detection device on the insulator foot, detection device is provided with low pressure wiring end and data interface, low pressure wiring end is connected with earth conductor, the problem of 750kV exchanges arrester do not have the real -time supervision of the running state parameter of voltage distribution control and the arrester of voltage -sharing electric capacity is solved, the operational reliability of arrester has been improved, messenger electric power system's electrical equipment avoids the harm of overvoltage, guarantee 750kV safe operation of power system.
Description
[technical field]
This utility model belongs to spark gap field, is specifically related to a kind of 750kV alternating-current lightning arrestor。
[background technology]
Spark gap is the important overvoltage protection of power system, and it is parallel to the electric equipment side protected, and is used for protecting electric equipment to damage from thunder and lightning and switching overvoltage。Development along with domestic and international 750kV transmission line of electricity, reliability and economy to 750kV spark gap propose high requirement, and the surge arresters with porcelain housings of application in existing 750kV power system, adopt grading ring and parallel equalizing capacitor device to control voltage's distribiuting, its structure is complicated。
[utility model content]
The purpose of this utility model is in that to overcome above-mentioned deficiency, it is provided that a kind of 750kV alternating-current lightning arrestor, solves 750kV alternating-current lightning arrestor without equalizing capacitor, and the problem realizing the monitoring in real time of the running state parameter of spark gap。
In order to achieve the above object, this utility model includes the unit of an arrester of some joint series connection, unit of an arrester top, upper end is provided with the second anticorona ring, second anticorona ring be connected above the first anticorona ring, being connected below grading ring, the bottom of lower end unit of an arrester is provided with insulator foot, and insulator foot is fixed with detecting device, detecting device is provided with low voltage terminal and data-interface, and low voltage terminal is connected with earth lead。
Described second anticorona ring connects the first anticorona ring and grading ring by welding or bolt。
Described first anticorona ring, the second anticorona ring and grading ring are circle, and are aluminum alloy materials。
The zinc oxide resistance sheet of multi-disc series connection closed assembly it is provided with in described unit of an arrester, unit of an arrester is outside equipped with big umbellule insulator, insulator two ends are provided with metal flange, and the resistor disc post number within unit of an arrester is 1 post, and the diameter range of resistor disc is φ 85～φ 136。
The two ends of described unit of an arrester are provided with pressure relief device and arc spraying mouth。
Described metal flange mucilage binding is at insulator two ends。
Described data-interface is connected with IED communication with RS485 data wire or optical cable, the state parameter signal of output spark gap。
Described unit of an arrester adopts four, is bolted between adjacent unit of an arrester。
Compared with prior art, this utility model by being provided with anticorona ring and grading ring in the upper end of the unit of an arrester of some series connection, for controlling electric field intensity and the voltage's distribiuting of the end of spark gap；Spark gap lower end is provided with monitoring device, by data-interface, the operational factor of spark gap it is uploaded to IED and accepts IED query statement, solve 750kV alternating-current lightning arrestor to control without the voltage's distribiuting of equalizing capacitance and the problem of in real time monitoring of running state parameter of spark gap, improve the operational reliability of spark gap, make the electric equipment infringement from overvoltage of power system, ensure 750kV safe operation of power system。
[accompanying drawing explanation]
Fig. 1 is structural representation of the present utility model。
[detailed description of the invention]
Below in conjunction with accompanying drawing, this utility model is described further。
Referring to Fig. 1, this utility model includes the unit of an arrester 4 of some series connection, upper end unit of an arrester 4 top is provided with the second anticorona ring 2, second anticorona ring be connected above the first anticorona ring 1, it is connected below grading ring 3, the bottom of lower end unit of an arrester 4 is provided with insulator foot 8, insulator foot 8 is fixed with detecting device 5, detecting device 5 is provided with low voltage terminal 6 and data-interface 7, low voltage terminal 6 is connected with earth lead, data-interface 7 is connected with IED communication with RS485 data wire or optical cable, the state parameter signal of output spark gap, first anticorona ring 1, second anticorona ring 2 and grading ring 3 are circle, and it is aluminum alloy materials。
The zinc oxide resistance sheet of multi-disc series connection closed assembly it is provided with in unit of an arrester 4, unit of an arrester 4 is outside equipped with big umbellule insulator, insulator two ends mucilage binding has metal flange, resistor disc post number within unit of an arrester 4 is 1 post, the diameter range of resistor disc is φ 85～φ 136, and the two ends of unit of an arrester 4 are provided with pressure relief device and arc spraying mouth。
Preferably, the second anticorona ring 2 connects the first anticorona ring 1 and grading ring 3 by welding or bolt。
Preferably, unit of an arrester 4 adopts four, is bolted between adjacent unit of an arrester 4。
First anticorona ring the 1, second anticorona ring 2 and grading ring 3 are used for controlling spark gap Analysis of End Electric Field intensity and controlling voltage's distribiuting, by data-interface 7, the running state parameter of spark gap being uploaded to IED and accept IED query statement, monitoring device 5 is connected with IED communication by data-interface 7 and RS485 data wire or optical cable。
Claims (8)
1. a 750kV alternating-current lightning arrestor, it is characterized in that: include the unit of an arrester (4) of some joint series connection, upper end unit of an arrester (4) top is provided with the second anticorona ring (2), second anticorona ring be connected above the first anticorona ring (1), it is connected below grading ring (3), the bottom of lower end unit of an arrester (4) is provided with insulator foot (8), insulator foot (8) is fixed with detecting device (5), detecting device (5) is provided with low voltage terminal (6) and data-interface (7), low voltage terminal (6) is connected with earth lead。
2. a kind of 750kV alternating-current lightning arrestor according to claim 1, it is characterised in that: described second anticorona ring (2) connects the first anticorona ring (1) and grading ring (3) by welding or bolt。
3. a kind of 750kV alternating-current lightning arrestor according to claim 1 and 2, it is characterised in that: described first anticorona ring (1), the second anticorona ring (2) and grading ring (3) are circle, and are aluminum alloy materials。
4. a kind of 750kV alternating-current lightning arrestor according to claim 1, it is characterized in that: in described unit of an arrester (4), be provided with the zinc oxide resistance sheet of multi-disc series connection closed assembly, unit of an arrester (4) is outside equipped with big umbellule insulator, insulator two ends are provided with metal flange, the resistor disc post number of unit of an arrester (4) inside is 1 post, and the diameter range of resistor disc is φ 85～φ 136。
5. a kind of 750kV alternating-current lightning arrestor according to claim 1 or 4, it is characterised in that: the two ends of described unit of an arrester (4) are provided with pressure relief device and arc spraying mouth。
6. a kind of 750kV alternating-current lightning arrestor according to claim 4, it is characterised in that: described metal flange mucilage binding is at insulator two ends。
7. a kind of 750kV alternating-current lightning arrestor according to claim 1, it is characterised in that: described data-interface (7) is connected with IED communication with RS485 data wire or optical cable, the state parameter signal of output spark gap。
8. a kind of 750kV alternating-current lightning arrestor according to claim 1, it is characterised in that: described unit of an arrester (4) adopts four, is bolted between adjacent unit of an arrester (4)。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141436.9U CN205335020U (en) | 2015-12-31 | 2015-12-31 | 750kV exchanges arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141436.9U CN205335020U (en) | 2015-12-31 | 2015-12-31 | 750kV exchanges arrester |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205335020U true CN205335020U (en) | 2016-06-22 |
Family
ID=56209808
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141436.9U Active CN205335020U (en) | 2015-12-31 | 2015-12-31 | 750kV exchanges arrester |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205335020U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098275A (en) * | 2016-07-18 | 2016-11-09 | 广州供电局有限公司 | Cable protective layer protector and control method thereof |
| CN110010314A (en) * | 2019-04-12 | 2019-07-12 | 平顶山正植科技有限公司 | Super extra-high voltage grading ring and its production technology |
| CN113341340A (en) * | 2021-05-19 | 2021-09-03 | 国网河北省电力有限公司检修分公司 | Voltage-dividing insulating cap for direct-current leakage current test of extra-high voltage controllable lightning arrester |
-
2015
- 2015-12-31 CN CN201521141436.9U patent/CN205335020U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106098275A (en) * | 2016-07-18 | 2016-11-09 | 广州供电局有限公司 | Cable protective layer protector and control method thereof |
| CN110010314A (en) * | 2019-04-12 | 2019-07-12 | 平顶山正植科技有限公司 | Super extra-high voltage grading ring and its production technology |
| CN110010314B (en) * | 2019-04-12 | 2020-08-04 | 平顶山正植科技有限公司 | Ultra-high voltage grading ring and production process thereof |
| CN113341340A (en) * | 2021-05-19 | 2021-09-03 | 国网河北省电力有限公司检修分公司 | Voltage-dividing insulating cap for direct-current leakage current test of extra-high voltage controllable lightning arrester |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20180420 Address after: 710016 Kai Xin mansion 130, Weiyang Road, Xi'an, Shaanxi. Co-patentee after: China XD Electronic Corporation Patentee after: XI'AN XD ARRESTER CO., LTD. Address before: 710075 Shaanxi city of Xi'an Province Tang Hing Road No. 7 Patentee before: China XD Electronic Corporation |