CN201107372Y - Monitoring device for lightning arrestor on-line action - Google Patents

Monitoring device for lightning arrestor on-line action Download PDF

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Publication number
CN201107372Y
CN201107372Y CNU2007201262543U CN200720126254U CN201107372Y CN 201107372 Y CN201107372 Y CN 201107372Y CN U2007201262543 U CNU2007201262543 U CN U2007201262543U CN 200720126254 U CN200720126254 U CN 200720126254U CN 201107372 Y CN201107372 Y CN 201107372Y
Authority
CN
China
Prior art keywords
lightning arrester
online
mutual inductor
rectification circuit
monitoring
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 - Lifetime
Application number
CNU2007201262543U
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Chinese (zh)
Inventor
刘勇琦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China XD Electric Co Ltd
Original Assignee
XI'AN ELECTRIC MANUFACTURING CORP
Priority date (The priority date 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 date listed.)
Filing date
Publication date
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Priority to CNU2007201262543U priority Critical patent/CN201107372Y/en
Application granted granted Critical
Publication of CN201107372Y publication Critical patent/CN201107372Y/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Abstract

In order to solve the shortcomings that a discharge counter for a traditional lightning arrester adopts the switching in of a ZnO curve resistance card and an SiC valve plate to interfere the protection level of a monitored lightning arrester, and the volume is increased when be applied to the lightning arrester with high capacity, the utility model discloses an online monitoring plant which has strong interference rejection and can be applicable to the action counting of the lightning arresters with various voltage classes. The online monitoring plant comprises a sampling unit and an online counting unit. The online counting unit is internally provided with a rectification circuit, an energy storage and protection circuit and an electromagnetic counter, and the sampling unit is internally provided with a mutual inductor connected with the rectification circuit in the online counting unit.

Description

The monitoring device that is used for the lightning arrester online actions
Technical field
The utility model relates to the on-Line Monitor Device in the electric power power transmission and transformation system.Be particularly related to and a kind ofly be used to write down lightning arrester and suffer thunder and lightning to involve operation ripple and the monitoring device of action protection number of times.
Background technology
The lightning arrester discharge counter is the important corollary apparatus of lightning arrester, and it is series at the arrester ground loop, is used to write down lightning arrester and suffers thunder and lightning to involve the number of times of operating ripple and moving, so that judge the operation conditions of lightning arrester.
The circuit structure block diagram of present normally used lightning arrester usefulness discharge counter as shown in Figure 1, its basic functional principle is for being sampling element with ZnO non-linear resistor or SiC valve block, through rectification silicon bridge, capacitance energy storage, thereby promote message register work counting.Owing to adopt non-linear resistor to take a sample and protect the follow-up electronic devices and components of counter; therefore very high to the performance requirement of sample resistance sheet; but the square wave capacity maximum of existing monolithic non-linear resistor reaches 1500A; along with voltage levels and jumbo novel friendship; the continuous development of direct current lightning arrester; the square wave discharge capacity of its whole structure lightning arrester has reached 6kA; 8kA etc. even higher; if still adopt traditional lightning arrester discharge counter; its can only adopt multi-disc through high capacity (1500A) non-linear resistor of current-sharing test and connect Tathagata and reach requirement, thereby cause the also corresponding increase of volume of monitor.On the other hand, existing counter only has the Presentation Function of field enumeration monitoring, this installs occasion for some, especially the valve lightning arrester in the valve Room in the direct current electric transmission and transformation system, insulation distance between its valve is little, Electric Field Distribution requires high, and the counter of large volume is not suitable for supporting installation, can't often enter the reading of its operation field observation lightning arrester counter simultaneously.
Summary of the invention
The utility model disturbs and is applied to the shortcoming that high capacity lightning arrester volume will increase for the access that solves traditional lightning arrester and adopt ZnO non-linear resistor and SiC valve block with discharge counter produces the protection level of institute's monitoring lightning arrester, provides a kind of strong interference immunity, applicable to the on-Line Monitor Device of the lightning arrester action counting of various electric pressures.Simultaneously, this monitoring device can be converted to the light signal that can transmit with the actuating signal of the lightning arrester that write down, carry out remote monitoring by optical fiber, be specially adapted in the direct current electric transmission and transformation system high capacity, can't the field observation operation conditions valve with the action counting of lightning arrester.
For reaching above purpose, the utility model takes following technical scheme to be achieved:
A kind of monitoring device that is used for the lightning arrester online actions; comprise sampling unit and online counting unit; be provided with rectification circuit, accumulation of energy and holding circuit and message register in the described online counting unit; it is characterized in that, the rectification circuit in the mutual inductor connecting line counting unit is set in the described sampling unit.
In the such scheme, described mutual inductor and rectification circuit are respectively equipped with three, described accumulation of energy and holding circuit are provided with two, wherein first mutual inductor connects an electrical to optical converter by first rectification circuit, first accumulation of energy and holding circuit, and this electrical to optical converter connects optical fiber by an infraluminescence pipe and realizes the remote signal transmission; Described second, third mutual inductor connects second accumulation of energy and holding circuit by second, third rectification circuit respectively, and the output of second accumulation of energy and holding circuit connects message register; Described mutual inductor is a permalloy iron-core coil formula mutual inductor.
The utility model is compared with discharge counter with traditional lightning arrester; its beneficial effect is: signal sampling has partly adopted the coil type mutual inductor that coiling forms on permalloy (1J85) iron core at high magnetic permeability to form; thereby isolate with monitored lightning arrester system insulation, can not impact its protection level.And volume is small and exquisite, be beneficial to installation; Simultaneously can the line monitor signal at lightning arrester scene be transmitted through the fiber to the light input interface of pulpit, carry out Long-distance Control and monitoring by electrical to optical converter and infraluminescence pipe.
Description of drawings
Fig. 1 is the circuit structure block diagram of existing a kind of lightning arrester with discharge counter.
Fig. 2 is a circuit structure block diagram of the present utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and the specific embodiments.
As shown in Figure 2; a kind of monitoring device that is used for the lightning arrester online actions; comprise sampling unit and online counting unit; be provided with three rectification circuit 2-1,2-2,2-3 in the online counting unit; two accumulation of energys and holding circuit 3-1,3-2 and 4, one electricals to optical converter 5 of a message register and an infraluminescence pipe 6.Rectification circuit 2-1,2-2 in three mutual inductor 1-1,1-2, the 1-3 difference connecting line counting unit, the input end of 2-3 are set in the sampling unit.
Sampled signal in the sampling unit of present embodiment is divided into two parts, the count signal that a part is gathered by the mutual inductor 1.1 of an elementary winding of single turn arrives remote control room by rectification circuit 2-1, accumulation of energy and holding circuit 3-1, electrical to optical converter 5, infraluminescence pipe 6 by Optical Fiber Transmission; A part is by the two-way count signal of mutual inductor 1-2, the 1-3 collection of two elementary windings of single turn; respectively by two rectification circuit 2-2,2-3; merging is input to accumulation of energy and holding circuit 3-2, exports a stronger control signal again and promotes the online discharge counting that message register 4 carries out lightning arrester.

Claims (3)

1. monitoring device that is used for the lightning arrester online actions; comprise sampling unit and online counting unit; be provided with rectification circuit, accumulation of energy and holding circuit and message register in the described online counting unit; it is characterized in that, the rectification circuit in the mutual inductor connecting line counting unit is set in the described sampling unit.
2. the monitoring device that is used for the lightning arrester online actions according to claim 1, it is characterized in that, described mutual inductor and rectification circuit are respectively equipped with three, described accumulation of energy and holding circuit are provided with two, wherein first mutual inductor connects an electrical to optical converter by first rectification circuit, first accumulation of energy and holding circuit, and this electrical to optical converter connects optical fiber by an infraluminescence pipe and realizes the remote signal transmission; Described second, third mutual inductor connects second accumulation of energy and holding circuit by second, third rectification circuit respectively, and the output of second accumulation of energy and holding circuit connects message register.
3. the monitoring device that is used for the lightning arrester online actions according to claim 1 and 2 is characterized in that, described mutual inductor is a permalloy iron-core coil formula mutual inductor.
CNU2007201262543U 2007-10-30 2007-10-30 Monitoring device for lightning arrestor on-line action Expired - Lifetime CN201107372Y (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CNU2007201262543U CN201107372Y (en) 2007-10-30 2007-10-30 Monitoring device for lightning arrestor on-line action

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CNU2007201262543U CN201107372Y (en) 2007-10-30 2007-10-30 Monitoring device for lightning arrestor on-line action

Publications (1)

Publication Number Publication Date
CN201107372Y true CN201107372Y (en) 2008-08-27

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Country Status (1)

Country Link
CN (1) CN201107372Y (en)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102023264A (en) * 2009-09-22 2011-04-20 华东电力试验研究院有限公司 Method for monitoring state of metal oxide lightning arrester
CN103048529A (en) * 2011-10-14 2013-04-17 四川蓝讯宝迩电子科技有限公司 Discharge counter with simple structure and capable of remotely transmitting data for lightning arrester
CN104316754A (en) * 2014-11-06 2015-01-28 重庆大学 Thunder and lightning counter remote monitoring early warning system and method
CN104698312A (en) * 2015-02-25 2015-06-10 中国南方电网有限责任公司超高压输电公司检修试验中心 System and method for electrically detecting DC arrester of DC converter station
CN107064609A (en) * 2017-03-30 2017-08-18 电子科技大学 A kind of transformer station's lightning impulse prior-warning device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102023264A (en) * 2009-09-22 2011-04-20 华东电力试验研究院有限公司 Method for monitoring state of metal oxide lightning arrester
CN103048529A (en) * 2011-10-14 2013-04-17 四川蓝讯宝迩电子科技有限公司 Discharge counter with simple structure and capable of remotely transmitting data for lightning arrester
CN104316754A (en) * 2014-11-06 2015-01-28 重庆大学 Thunder and lightning counter remote monitoring early warning system and method
CN104698312A (en) * 2015-02-25 2015-06-10 中国南方电网有限责任公司超高压输电公司检修试验中心 System and method for electrically detecting DC arrester of DC converter station
CN107064609A (en) * 2017-03-30 2017-08-18 电子科技大学 A kind of transformer station's lightning impulse prior-warning device

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Legal Events

Date Code Title Description
GR01 Patent grant
C14 Grant of patent or utility model
ASS Succession or assignment of patent right

Owner name: WEST CHINA ELECTRIC POWER CO.

Free format text: FORMER OWNER: XI'AN ELECTRIC MANUFACTURING CORP.

Effective date: 20080926

C41 Transfer of patent application or patent right or utility model
TR01 Transfer of patent right

Effective date of registration: 20080926

Address after: Shaanxi province Xi'an City West High Tang Hing Road No. 7, zip code: 710075

Patentee after: China XD Electronic Corporation

Address before: Shaanxi province Xi'an Fengdeng road 29, zip code: 710077

Patentee before: Xi'an Electric Manufacturing Corp.

CX01 Expiry of patent term

Granted publication date: 20080827

CX01 Expiry of patent term