CN201134154Y - On-line monitoring system of leakage current of zinc oxide lightning arrester of high-voltage grid system - Google Patents
On-line monitoring system of leakage current of zinc oxide lightning arrester of high-voltage grid system Download PDFInfo
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- CN201134154Y CN201134154Y CNU2007201987270U CN200720198727U CN201134154Y CN 201134154 Y CN201134154 Y CN 201134154Y CN U2007201987270 U CNU2007201987270 U CN U2007201987270U CN 200720198727 U CN200720198727 U CN 200720198727U CN 201134154 Y CN201134154 Y CN 201134154Y
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Abstract
The utility model relates to an online monitoring system for the leakage current of a zinc oxide arrester in a high-voltage electricity network, comprising a leakage current online detector, a point-to-point isolation communication interface, a bus data collector and a bus collection management system, which are connected in turn, wherein the online detector detects a connected zinc oxide arrester, the point-to-point isolation communication interface collects and transmits the detection signals of the online detector to the bus data collector and transmits the signals of the bus data collector to the online detector, the bus data collector transmits received data to the bus collection management system, and the bus collection management system collects and manages the signal collected by the bus data collector and sends down relative signals. The online monitoring system improves the response speed and detection accuracy of detection.
Description
Technical field
The utility model relates to the in-service monitoring system of Leakage Current of Zinc-oxide Lightning Arresters, relates in particular to the in-service monitoring system of Leakage Current of Zinc-oxide Lightning Arresters in a kind of high-voltage web system.
Background technology
In high-voltage fence, the zinc paste Zinc-Oxide Arrester is a kind of protection equipment that the protection electric equipment is avoided the superpotential infringement.Because nonlinear characteristic that the zinc paste Zinc-Oxide Arrester is superior and good through-current capability; now accepted and be used widely by vast power department and user thereof; yet a large amount of uses along with the zinc paste Zinc-Oxide Arrester; cause protected equipment to be damaged and cause that electric power accident also has generation because of Zinc-Oxide Arrester itself has an accident, especially in a single day 110KV and above electric pressure zinc paste Zinc-Oxide Arrester have an accident and will bring about great losses to the user.Therefore improving constantly the manufacture level of Zinc-Oxide Arrester, guaranteeing to actively develop the safe operation that will help power equipment to the method for monitoring of Leakage Current of Zinc-oxide Lightning Arresters in the high-voltage web system on the basis of Zinc-Oxide Arrester workmanship.
The method that traditional total current is measured has only reflected that the variation of Zinc-Oxide Arrester capacity current, external environment condition change, and changing value can not show obviously that the quality of Zinc-Oxide Arrester inside changes, therefore need to adopt other method, the measuring method that can faster, correctly, effectively reflect the internal soundness problem exactly, promptly think the comparison effective method at present---measure the resistive component of Zinc-Oxide Arrester, abbreviate the current in resistance property diagnostic method as.
Traditional monitoring method is the mode that relies on artificial on-the-spot poll, do not have surveillance, so reaction velocity is slower, and accuracy in detection is relatively poor, and therefore the supervision in high-voltage web system needs a kind of brand-new system.
The utility model content
The purpose of this utility model is to solve the supervision problem of Zinc-Oxide Arrester internal soundness in the above-mentioned high-voltage web system, and a kind of wireless remote surveillance of utilizing bus and network technology is provided.
The technical scheme that realizes the utility model purpose is: a kind of in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters, it is characterized in that, this on-line monitoring system is by the leakage current in-service monitoring instrument, the point-to-point isolation communication interface that connect successively, bus data gatherer and a bus acquisition management system are formed, wherein
Described in-service monitoring instrument is used for the Zinc-Oxide Arrester that connects is monitored;
Described point-to-point isolation communication interface, the supervisory signal that is used to collect described in-service monitoring instrument, and this supervisory signal sent to described bus data gatherer; To send to described in-service monitoring instrument from the signal of described bus data gatherer simultaneously;
Described bus data gatherer sends received data to described bus acquisition management system, and will send to described in-service monitoring instrument by described point-to-point isolation communication interface from the signal of described bus acquisition management system;
Described bus acquisition management system is used to gather and manage the signal of collecting by described bus data gatherer, and issues relevant signal.
Preferably, described point-to-point isolation communication interface transmission signal wire and received signal line are differential signal.
Further, described point-to-point isolation communication interface in being connected of described bus data gatherer and in-service monitoring instrument, adopted photoelectricity isolate and the transformer isolation technology to avoid crosstalking of high pressure.
Alternatively, described point-to-point isolation communication interface is made up of full duplex or semiduplex universal serial bus.
Alternatively, described point-to-point isolation communication interface is made up of the device that comprises interconnective transformer coupled and photoelectricity coupling, one end of described transformer coupled device is connected with described bus data gatherer, and an end of described optical coupling device is connected with described in-service monitoring instrument.
Alternatively, described bus data gatherer is made up of dsp controller and supplying cell.
Alternatively, described bus data gatherer has the bus interface that links to each other with described bus acquisition management system, has the SCI interface that links to each other with described point-to-point isolation communication interface again.
Further, described bus data gatherer is according to sending data to described bus acquisition management system with the corresponding mode of polling mode.
Further, described bus acquisition management system is collected the Leakage Current of Zinc-oxide Lightning Arresters data with polling mode to described bus data gatherer.
The in-service monitoring system of above-mentioned high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters is formed a whole by the in-service monitoring system of a plurality of above-mentioned high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters.
Owing to adopted above-mentioned technical solution, solved the supervision problem of Zinc-Oxide Arrester internal soundness in the present high-voltage web system fully, improved the reaction velocity and the accuracy in detection that monitor significantly.
Description of drawings
Fig. 1 is the in-service monitoring system architecture synoptic diagram of the utility model high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters;
Fig. 2 is a bus acquisition management system poll block diagram in the utility model;
Fig. 3 is the agreement block diagram that the bus data gatherer adopts in the utility model;
Fig. 4 is a kind of structure and the connection diagram of point-to-point isolation communication interface in the utility model.
Embodiment
The utility model is described in further detail below in conjunction with drawings and embodiments.
With reference to figure 1, a kind of in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters, this on-line monitoring system is made up of leakage current in-service monitoring instrument 4, point-to-point isolation communication interface 3, bus data gatherer 2 and a bus acquisition management system 1 of connecting successively, wherein
Described in-service monitoring instrument is used for the Zinc-Oxide Arrester that connects is monitored;
Described point-to-point isolation communication interface 3, the supervisory signal that is used to collect described in-service monitoring instrument, and this supervisory signal sent to described bus data gatherer; To send to described in-service monitoring instrument from the signal of described bus data gatherer simultaneously;
Described bus data gatherer 2 sends received data to described bus acquisition management system, and will send to described in-service monitoring instrument by described point-to-point isolation communication interface from the signal of described bus acquisition management system;
Described bus acquisition management system 1 is used to gather and manage the signal of collecting by described bus data gatherer, and issues relevant signal.
Above-mentioned point-to-point isolation communication interface 3 sends signal wire and the received signal line is differential signal.
Above-mentioned point-to-point isolation communication interface 3 in being connected of described bus data gatherer 2 and in-service monitoring instrument 4, adopted photoelectricity isolate and the transformer isolation technology to avoid crosstalking of high pressure.
Above-mentioned point-to-point isolation communication interface 3 is made up of full duplex or semiduplex universal serial bus.
With reference to figure 4, point-to-point isolation communication interface 3 by comprise interconnective transformer coupled 31 and the device of photoelectricity coupling 32 form, one end of described transformer coupled device 31 is connected with described bus data gatherer 2, and an end of described optical coupling device 32 is connected with described in-service monitoring instrument 4.
Above-mentioned bus data gatherer 2 is made up of dsp controller and supplying cell.
Above-mentioned bus data gatherer 2 has the bus interface that links to each other with described bus acquisition management system 1, has the SCI interface that links to each other with described point-to-point isolation communication interface 3 again.
Above-mentioned bus data gatherer is according to sending data to described bus acquisition management system with the corresponding mode of polling mode.
Above-mentioned bus acquisition management system is collected the Leakage Current of Zinc-oxide Lightning Arresters data with polling mode to described bus data gatherer.
A kind of in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters, it is made up of the in-service monitoring system of a plurality of above-mentioned high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters.
Embodiment:
With reference to figure 1, adopt industrial computer and 485 bus interface boards to form the bus acquisition management system by the fieldbus collection with manage the leakage current of a plurality of Zinc-Oxide Arresters.The fieldbus that the bus acquisition management system adopts is 485 buses.
With reference to figure 1, the bus acquisition management system that adopts industrial computer and CAN bus interface board to form is collected the Leakage Current of Zinc-oxide Lightning Arresters data with polling mode to the bus data gatherer.Address number from 1 to 255, communication identification code adopt the binary code of tape verifying, and baud rate is 38400, and the polling interval is 1 hour, the overtime 240mS that is set to, and the poll block diagram is with reference to figure 2:
The bus acquisition management system sends online monitor address number 11 to the bus data gatherer, if overtime, then returns, and resends; If not overtime, then forward 12 to and promptly receive in-service monitoring instrument address number and receive affirmation, continue 13 and promptly send online monitor address number and inquiry, then turn back to 11 as if overtime, resend; If not overtime, then carry out 14 and promptly receive in-service monitoring instrument address and parameter and receive affirmation, and continue next step and 15 promptly receive in-service monitoring instrument address number and side-play amount, if overtimely then forward 11 to.
Each bus data gatherer can be made up of the dsp controller and the lithium battery of 28 series.Each dsp controller of doing 28 series of bus data gatherer all has the collinear acquisition management system of 485 bus interface and links to each other, and has the SCI interface to link to each other with point-to-point isolation communication interface simultaneously again.
Each bus data gatherer sends data to the bus acquisition management system according to described protocol parameter of Fig. 3 and block diagram, promptly
Flow process 21: the time of setting arrives, and sends inquiry.If not overtime, then carry out flow process 22 and promptly receive parameter and receive affirmation, carry out flow process 23 then, restart timer; If overtime, then directly forward flow process 23 to, restart timer, forward flow process 21 then to.
Each bus data gatherer is gathered the data of online monitor according to the agreement block diagram of Fig. 3.Communication identification code adopts the binary code of tape verifying, and baud rate is 38400, is spaced apart 1 hour, the overtime 240mS of being set to.
Point-to-point isolation communication interface can be made up of full duplex 485 universal serial bus.Point-to-point isolation communication interface sends signal wire and the received signal line is differential signal.Be divided into T+, T-, four signals of R+, R-.
Point-to-point isolation communication interface has adopted TI521 photoelectricity to isolate and 1: 1 transformer isolation technology in being connected of bus data gatherer and in-service monitoring instrument, and has avoided crosstalking of high pressure.
Above embodiment is only for the usefulness that the utility model is described, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or modification, therefore all technical schemes that are equal to also should belong to category of the present utility model, should be limited by each claim.
Claims (8)
1, a kind of in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters, it is characterized in that this on-line monitoring system is by the leakage current in-service monitoring instrument, the point-to-point isolation communication interface that connect successively, bus data gatherer and a bus acquisition management system are formed, wherein
Described in-service monitoring instrument is used for the Zinc-Oxide Arrester that connects is monitored;
Described point-to-point isolation communication interface, the supervisory signal that is used to collect described in-service monitoring instrument, and this supervisory signal sent to described bus data gatherer; To send to described in-service monitoring instrument from the signal of described bus data gatherer simultaneously;
Described bus data gatherer sends received data to described bus acquisition management system, and will send to described in-service monitoring instrument by described point-to-point isolation communication interface from the signal of described bus acquisition management system;
Described bus acquisition management system is used to gather and manage the signal of collecting by described bus data gatherer, and issues relevant signal.
2, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1 is characterized in that, described point-to-point isolation communication interface sends signal wire and the received signal line is differential signal.
3, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1, it is characterized in that, described point-to-point isolation communication interface in being connected of described bus data gatherer and in-service monitoring instrument, adopted photoelectricity isolate and the transformer isolation technology to avoid crosstalking of high pressure.
4, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1 is characterized in that, described point-to-point isolation communication interface is made up of full duplex or semiduplex universal serial bus.
5, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1, it is characterized in that, described point-to-point isolation communication interface is made up of the device that comprises interconnective transformer coupled and photoelectricity coupling, one end of described transformer coupled device is connected with described bus data gatherer, and an end of described optical coupling device is connected with described in-service monitoring instrument.
6, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1 is characterized in that, described bus data gatherer is made up of dsp controller and supplying cell.
7, the in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1, it is characterized in that, described bus data gatherer has the bus interface that links to each other with described bus acquisition management system, has the SCI interface that links to each other with described point-to-point isolation communication interface again.
8, a kind of in-service monitoring system of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters is characterized in that, it is made up of the in-service monitoring system of a plurality of high-voltage fence Leakage Current of Zinc-oxide Lightning Arresters as claimed in claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201987270U CN201134154Y (en) | 2007-11-30 | 2007-11-30 | On-line monitoring system of leakage current of zinc oxide lightning arrester of high-voltage grid system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201987270U CN201134154Y (en) | 2007-11-30 | 2007-11-30 | On-line monitoring system of leakage current of zinc oxide lightning arrester of high-voltage grid system |
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| CN201134154Y true CN201134154Y (en) | 2008-10-15 |
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| CNU2007201987270U Expired - Fee Related CN201134154Y (en) | 2007-11-30 | 2007-11-30 | On-line monitoring system of leakage current of zinc oxide lightning arrester of high-voltage grid system |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581748B (en) * | 2009-06-24 | 2011-09-07 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| CN102946150A (en) * | 2012-12-07 | 2013-02-27 | 上海市电力公司 | Bus data collector in online switchgear arrester leakage current monitoring system |
| CN103023623A (en) * | 2012-12-07 | 2013-04-03 | 上海市电力公司 | Data acquiring and transmitting method in online monitoring system |
| CN106526401A (en) * | 2016-11-28 | 2017-03-22 | 唐恩(厦门)电气有限公司 | Distributed lightning arrester online monitoring system |
| CN109254198A (en) * | 2018-10-08 | 2019-01-22 | 许昌许继软件技术有限公司 | The synchronous data sampling system and data acquisition device of arrester |
| CN111999676A (en) * | 2020-09-03 | 2020-11-27 | 国家电网有限公司 | Electric leakage fault remote alarm system for transformer substation |
-
2007
- 2007-11-30 CN CNU2007201987270U patent/CN201134154Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101581748B (en) * | 2009-06-24 | 2011-09-07 | 西安工程大学 | Zinc oxide arrester on-line monitoring system |
| CN102946150A (en) * | 2012-12-07 | 2013-02-27 | 上海市电力公司 | Bus data collector in online switchgear arrester leakage current monitoring system |
| CN103023623A (en) * | 2012-12-07 | 2013-04-03 | 上海市电力公司 | Data acquiring and transmitting method in online monitoring system |
| CN106526401A (en) * | 2016-11-28 | 2017-03-22 | 唐恩(厦门)电气有限公司 | Distributed lightning arrester online monitoring system |
| CN109254198A (en) * | 2018-10-08 | 2019-01-22 | 许昌许继软件技术有限公司 | The synchronous data sampling system and data acquisition device of arrester |
| CN109254198B (en) * | 2018-10-08 | 2021-07-13 | 许昌许继软件技术有限公司 | Data synchronous acquisition system and data acquisition device of lightning arrester |
| CN111999676A (en) * | 2020-09-03 | 2020-11-27 | 国家电网有限公司 | Electric leakage fault remote alarm system for transformer substation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20081015 Termination date: 20151130 |
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| EXPY | Termination of patent right or utility model |