CN109061374A - Utilize the Zinc-Oxide Arrester monitoring method and device of electric substation automation system - Google Patents
Utilize the Zinc-Oxide Arrester monitoring method and device of electric substation automation system Download PDFInfo
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- CN109061374A CN109061374A CN201811146563.6A CN201811146563A CN109061374A CN 109061374 A CN109061374 A CN 109061374A CN 201811146563 A CN201811146563 A CN 201811146563A CN 109061374 A CN109061374 A CN 109061374A
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- arrester
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- leakage current
- component ratio
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
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Abstract
The present invention provides a kind of Zinc-Oxide Arrester monitoring methods and device using electric substation automation system, comprising: obtains arrester voltage, total current, resistive current component, capacitive current component；According to arrester voltage, total current, resistive current component, capacitive current component, the phase angle difference and Leakage Current resistive component ratio of calculating current value and voltage value；According to Leakage Current resistive component ratio, arrester inner case is judged.Design realizes the real time on-line monitoring to arrester internal state in this way, meets the demand for development of Intelligent transformer station, accomplishes the effect in time, accurately finding arrester internal abnormality.
Description
Technical field
The present invention relates to parameter monitoring technical fields, in particular to a kind of oxygen using electric substation automation system
Change zinc arrester monitoring method and device.
Background technique
Current Zinc-Oxide Arrester (calling arrester in the following text) on-line monitoring technique, is installed mainly between arrester and ground
One current instrument, by the way that manually monthly the leakage current values of arrester are made a copy of at scene, and with before record and original records
It compares, is judged inside arrester by the variation tendency of data with the presence or absence of abnormal.
In addition, carrying out live testing to arrester every year, the resistance in dedicated apparatus measures leakage current of an arrester is utilized
Property electric current, it is compared with previous measured value, is judged inside arrester by the variation tendency of data with the presence or absence of different
Often.
1, above two method requires artificial regular copy data, or carries out special test to arrester, and two kinds
Method can not all accomplish to carry out real-time online monitoring to arrester；
2, the participation of people hinders the development of Intelligent transformer station technology；
3, artificial copy data can be influenced by range, scale and the people subjectivity of current instrument, and error is larger；
4, the leakage current values manually made a copy of are total current values, and really reflect that arrester internal state is current in resistance property,
The leakage current for needing special instrument to be just capable of measuring, therefore manually making a copy of is limited to discovery arrester internal fault effect.
Summary of the invention
For above-mentioned problems of the prior art, the present invention provides a kind of oxygen using electric substation automation system
Change zinc arrester monitoring method.
In a first aspect, the embodiment of the invention provides a kind of Zinc-Oxide Arrester monitorings using electric substation automation system
Method, which comprises
Obtain arrester voltage, total current, resistive current component, capacitive current component；
According to arrester voltage, total current, resistive current component, capacitive current component, calculating current value and voltage value
Phase angle difference and Leakage Current resistive component ratio；
According to Leakage Current resistive component ratio, arrester inner case is judged.
Further, according to Leakage Current resistive component ratio, judge arrester inner case, comprising:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester.
Further, the method also includes:
By the deterioration inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Situation is sent to display device and shows.
Further, according to Leakage Current resistive component ratio, judge arrester inner case, comprising:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester, and alarm.
Further, the method also includes:
By the deterioration inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Situation is saved to database, and according to the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated is kept away
Deterioration condition inside thunder device generates chart.
Second aspect, the embodiment of the invention also provides a kind of Zinc-Oxide Arrester prisons using electric substation automation system
Device is surveyed, described device includes:
Module is obtained, for obtaining arrester voltage, total current, resistive current component, capacitive current component；
Computing module, for according to arrester voltage, total current, resistive current component, capacitive current component, calculating current
The phase angle difference and Leakage Current resistive component ratio of value and voltage value；
Judgment module, for judging arrester inner case according to Leakage Current resistive component ratio.
Further, the judgment module is also used to:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester.
Further, described device further include:
Display module, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated keeping away
Deterioration condition inside thunder device is sent to display device and shows.
Further, described device further include:
Chart module, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated keeping away
Deterioration condition inside thunder device is saved to database, and according to the phase angle difference of current value and voltage value, Leakage Current resistive component
Deterioration condition inside ratio and affiliated arrester generates chart.
The third aspect, the embodiment of the invention provides a kind of computer storage mediums, for being stored as described in second aspect
Device used in computer software instructions.
The embodiment of the present invention bring it is following the utility model has the advantages that
The embodiment of the invention provides a kind of Zinc-Oxide Arrester monitoring methods and dress using electric substation automation system
It sets, comprising: obtain arrester voltage, total current, resistive current component, capacitive current component；According to arrester voltage, full electricity
The phase angle difference and Leakage Current resistive component ratio of stream, resistive current component, capacitive current component, calculating current value and voltage value
Example；According to Leakage Current resistive component ratio, arrester inner case is judged.Design is realized to arrester internal state in this way
Real time on-line monitoring, meet the demand for development of Intelligent transformer station, accomplish in time, accurately find arrester internal abnormality
Effect.
Other features and advantages of the present invention will illustrate in the following description, also, partly become from specification
It obtains it is clear that understand through the implementation of the invention.The objectives and other advantages of the invention are in specification, claims
And specifically noted structure is achieved and obtained in attached drawing.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution in the prior art
Embodiment or attached drawing needed to be used in the description of the prior art be briefly described, it should be apparent that, it is described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, is also possible to obtain other drawings based on these drawings.
Fig. 1 is a kind of Zinc-Oxide Arrester prison using electric substation automation system provided by first embodiment of the invention
The flow chart of survey method；
Fig. 2 is a kind of Zinc-Oxide Arrester prison using electric substation automation system provided by second embodiment of the invention
The flow chart of survey method；
Fig. 3 is a kind of Zinc-Oxide Arrester prison using electric substation automation system provided by third embodiment of the invention
The structural block diagram of the device of survey；
Fig. 4 is the equivalent circuit diagram of arrester；
Fig. 5 is arrester voltage, total current, resistive current component, capacitive current component relational graph.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with attached drawing to the present invention
Technical solution be clearly and completely described, it is clear that described embodiments are some of the embodiments of the present invention, rather than
Whole embodiments.The component of embodiments of the present invention, which are generally described and illustrated herein in the accompanying drawings can be matched with a variety of different
It sets to arrange and design.Therefore, the detailed description of the embodiment of the present invention provided in the accompanying drawings is not intended to limit below
The range of claimed invention, but it is merely representative of selected embodiment of the invention.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work, belongs to the present invention
The range of protection.
Embodiment one
A kind of flow chart of Zinc-Oxide Arrester monitoring method using electric substation automation system shown in Figure 1,
This method is applied to specifically comprise the following steps:
S101. arrester voltage, total current, resistive current component, capacitive current component are obtained；
S102. according to arrester voltage, total current, resistive current component, capacitive current component, calculating current value and voltage
The phase angle difference and Leakage Current resistive component ratio of value；
As shown in figure 4, under normal circumstances, IR, IC current value are all very small, and resistive component only accounts for total leakage current
10%~20%.And after deterioration inside arrester, IR can increase suddenly, and the accounting in total leakage current also rapidly rises
It is high.Therefore, by the resistive component ratio in monitoring leakage current of an arrester, it can achieve and accurately and timely judge inside arrester
The purpose whether deteriorated.
Arrester voltage, total current, resistive current component, capacitive current component relationship are as shown in Fig. 5, leakage current resistance
Property component accounting calculation formula is as follows:
And there is following relationship between voltage, electric current:
S103. according to Leakage Current resistive component ratio, judge arrester inner case.
Specifically, judging whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester, and alarm, realizes to leakage current of an arrester resistive component
Real time on-line monitoring.
Meanwhile it will be inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Deterioration condition be sent to display device and show.
Embodiment two
The flow chart that a kind of Zinc-Oxide Arrester using electric substation automation system shown in Figure 2 monitors, the party
It is realized on the basis of the Zinc-Oxide Arrester monitoring using electric substation automation system that method provides in example 1, it is specific to wrap
Include following steps:
S201. arrester voltage, total current, resistive current component, capacitive current component are obtained；
S202. according to arrester voltage, total current, resistive current component, capacitive current component, calculating current value and voltage
The phase angle difference and Leakage Current resistive component ratio of value；
S203. according to Leakage Current resistive component ratio, judge arrester inner case.
It S204. will be inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Deterioration condition be sent to display device and show.
Embodiment three
For utilizing the Zinc-Oxide Arrester monitoring method of electric substation automation system, this hair provided by previous embodiment
Bright embodiment provides a kind of device that the Zinc-Oxide Arrester using electric substation automation system monitors, shown in Figure 3
A kind of structural block diagram for the device that the Zinc-Oxide Arrester using electric substation automation system monitors, which includes such as lower part
Point:
Module 31 is obtained, for obtaining arrester voltage, total current, resistive current component, capacitive current component；
Computing module 32, for calculating electricity according to arrester voltage, total current, resistive current component, capacitive current component
The phase angle difference and Leakage Current resistive component ratio of flow valuve and voltage value；
Judgment module 33, for judging arrester inner case according to Leakage Current resistive component ratio.
Further, the judgment module 33 is also used to:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester.
Further, described device further include:
Display module 34, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated
Deterioration condition inside arrester is sent to display device and shows.
Further, described device further include:
Chart module 35, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated
Deterioration condition inside arrester is saved to database, and according to resistive point of the phase angle difference of current value and voltage value, Leakage Current
Deterioration condition inside amount ratio and affiliated arrester generates chart.
The embodiment of the invention also provides a kind of computer storage mediums, for being stored as device provided by the above embodiment
Computer software instructions used.
In addition, in the description of the embodiment of the present invention unless specifically defined or limited otherwise, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or be integrally connected；It can
To be mechanical connection, it is also possible to be electrically connected；It can be directly connected, can also can be indirectly connected through an intermediary
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" be based on the orientation or positional relationship shown in the drawings, merely to
Convenient for description the present invention and simplify description, rather than the device or element of indication or suggestion meaning must have a particular orientation,
It is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
It should be noted that in embodiment provided by the present invention, it should be understood that disclosed system and method, it can
To realize by another way.The apparatus embodiments described above are merely exemplary, for example, the unit is drawn
Point, only a kind of logical function partition, there may be another division manner in actual implementation, in another example, multiple units or group
Part can be combined or can be integrated into another system, or some features can be ignored or not executed.It is described to be used as separation unit
The unit that part illustrates may or may not be physically separated, and component shown as a unit can be or can also
Not to be physical unit, it can it is in one place, or may be distributed over multiple network units.It can be according to reality
Needs some or all of the units may be selected to achieve the purpose of the solution of this embodiment.
In addition, each functional unit in embodiment provided by the invention can integrate in one processing unit, it can also
To be that each unit physically exists alone, can also be integrated in one unit with two or more units.
It, can be with if the function is realized in the form of SFU software functional unit and when sold or used as an independent product
It is stored in a computer readable storage medium.Based on this understanding, technical solution of the present invention is substantially in other words
The part of the part that contributes to existing technology or the technical solution can be embodied in the form of software products, the meter
Calculation machine software product is stored in a storage medium, including some instructions are used so that a computer equipment (can be a
People's computer, server or network equipment etc.) it performs all or part of the steps of the method described in the various embodiments of the present invention.
And storage medium above-mentioned includes: that USB flash disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), arbitrary access are deposited
The various media that can store program code such as reservoir (RAM, Random Access Memory), magnetic or disk.
In addition, term " first ", " second ", " third " are used for description purposes only, it is not understood to indicate or imply phase
To importance.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention, should all cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. a kind of Zinc-Oxide Arrester monitoring method using electric substation automation system, which is characterized in that the described method includes:
Obtain arrester voltage, total current, resistive current component, capacitive current component；
According to arrester voltage, total current, resistive current component, capacitive current component, the phase angle of calculating current value and voltage value
Difference and Leakage Current resistive component ratio；
According to Leakage Current resistive component ratio, arrester inner case is judged.
2. the method according to claim 1, wherein judging arrester according to Leakage Current resistive component ratio
Inner case, comprising:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester.
3. according to the method described in claim 2, it is characterized in that, the method also includes:
By the deterioration condition inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
It is sent to display device and shows.
4. according to the method described in claim 2, it is characterized in that, judging arrester according to Leakage Current resistive component ratio
Inner case, comprising:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester, and alarm.
5. according to the method described in claim 2, it is characterized in that, the method also includes:
By the deterioration condition inside the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
It saves to database, and according to the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Internal deterioration condition generates chart.
6. a kind of Zinc oxide arrester monitoring device using electric substation automation system, which is characterized in that described device includes:
Module is obtained, for obtaining arrester voltage, total current, resistive current component, capacitive current component；
Computing module, for according to arrester voltage, total current, resistive current component, capacitive current component, calculating current value and
The phase angle difference and Leakage Current resistive component ratio of voltage value；
Judgment module, for judging arrester inner case according to Leakage Current resistive component ratio.
7. device according to claim 6, which is characterized in that the judgment module is also used to:
Judge whether Leakage Current resistive component ratio is greater than preset threshold；
If so, judging to deteriorate inside arrester.
8. device according to claim 7, which is characterized in that described device further include:
Display module, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Internal deterioration condition is sent to display device and shows.
9. device according to claim 7, which is characterized in that described device further include:
Chart module, for by the phase angle difference of current value and voltage value, Leakage Current resistive component ratio and affiliated arrester
Internal deterioration condition is saved to database, and according to the phase angle difference of current value and voltage value, Leakage Current resistive component ratio
And the deterioration condition inside affiliated arrester generates chart.
10. a kind of computer storage medium, which is characterized in that for being stored as device described in claim 6 to 9 any one
Computer software instructions used.
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Cited By (4)
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| CN112578311A (en) * | 2020-12-01 | 2021-03-30 | 国网山东省电力公司电力科学研究院 | Lightning arrester leakage current detection device and method |
| CN113837312A (en) * | 2021-09-30 | 2021-12-24 | 南方电网电力科技股份有限公司 | Method and device for evaluating running state of zinc oxide arrester |
| CN114301168A (en) * | 2021-11-25 | 2022-04-08 | 扬州中恒电气有限公司 | Intelligent lightning arrester system suitable for transformer substation and monitoring method |
| CN115494330A (en) * | 2022-09-23 | 2022-12-20 | 北京Abb低压电器有限公司 | Method for estimating residual life of surge protector on line, surge protector and electronic equipment |
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| CN115494330A (en) * | 2022-09-23 | 2022-12-20 | 北京Abb低压电器有限公司 | Method for estimating residual life of surge protector on line, surge protector and electronic equipment |
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