CN109116118A - A kind of earth-continuity self-operated measuring unit and its application method - Google Patents

A kind of earth-continuity self-operated measuring unit and its application method Download PDF

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Publication number
CN109116118A
CN109116118A CN201811021174.0A CN201811021174A CN109116118A CN 109116118 A CN109116118 A CN 109116118A CN 201811021174 A CN201811021174 A CN 201811021174A CN 109116118 A CN109116118 A CN 109116118A
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CN
China
Prior art keywords
equipment
current
continuity
earth
reference point
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Pending
Application number
CN201811021174.0A
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Chinese (zh)
Inventor
李欣
何智强
任章鳌
王丽蓉
叶会生
金超
徐彪
陈思铭
黄海波
毛文奇
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State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
Original Assignee
State Grid Corp of China SGCC
Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd
State Grid Hunan Electric Power Co Ltd
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Application filed by State Grid Corp of China SGCC, Electric Power Research Institute of State Grid Hunan Electric Power Co Ltd, State Grid Hunan Electric Power Co Ltd filed Critical State Grid Corp of China SGCC
Priority to CN201811021174.0A priority Critical patent/CN109116118A/en
Publication of CN109116118A publication Critical patent/CN109116118A/en
Pending legal-status Critical Current

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    • GPHYSICS
    • G01MEASURING; TESTING
    • G01RMEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
    • G01R27/00Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
    • G01R27/02Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
    • G01R27/08Measuring resistance by measuring both voltage and current

Abstract

The invention discloses a kind of earth-continuity self-operated measuring unit and its application methods, device includes continuity test module, RFID control unit and control unit, continuity test module includes battery, voltage detection module and current detection module, voltage detection module is connected in parallel on the output end of battery, current detection module is connected on the output end of battery, the output end of battery is connected separately with voltage tester line and testing current line, RFID wireless sensor is connected in RFID control unit, control unit includes central control module, data memory module and display module;Application method includes for carrying out earth-continuity automatic measurement.The present invention can be realized automatically recording data and analyzing conducting resistance variation tendency in real time for earth-continuity automatic measurement, improve testing efficiency and accuracy, manpower-free's data record, for solving the problems of current earth mat continuity test.

Description

A kind of earth-continuity self-operated measuring unit and its application method
Technical field
The present invention relates to the grounded screen measuring techniques of electric system, and in particular to a kind of earth-continuity self-operated measuring unit and Its application method, the earth-continuity suitable for large-scale grounding networks such as substation, power plants measure, which can automatically record entirely The test result of plant stand, without manual intervention record measurement test data.
Background technique
Substation, power plant, chemical plant and heavy construction etc. are all laid with large-scale grounding network, and are connected with plant stand facility It connects, to prevent the harm of thunder and lightning and overvoltage, so that it is guaranteed that equipment and personal safety, therefore, the health status pair of grounded screen It is most important in guarantee equipment and personal safety, it is necessary to periodically to be detected.Grounded screen conducting resistance is as weighing device and ground One of the important evidence of net connection state, power industry require necessary periodic measurement Earth-continuity, such as State Grid Corporation of China It is required that Earth-continuity measurement is carried out to 110kV and above substation before annual thunderstorm season, to prevent equipment Downlead corrodes and leading to connect not smooth, more long for operation time limit substation with main grounding grid also needs periodically to excavate It checks, to check the corrosion condition of down conductor and main grounding grid.Currently, earth mat conducting resistance test frequently with voltammetry into Row often requires manual intervention and carries out test data record, but since installations and facilities down conductor each in substation is more, causes Measuring point is numerous, and the not easy-to-use accurate language description of data recording process, causes manual record data time and effort consuming, to live O&M Personnel cause huge workload.Further, since tester, test position and data record method and format are lack of standardization Deng influence, cause each measurement result that can not carry out effective comparative analysis with historical data, be unfavorable for grasping each measuring point electric conduction The variation tendency of resistance can not grasp grounded screen health status in time.
Summary of the invention
The technical problem to be solved in the present invention: in view of the above problems in the prior art, a kind of earth-continuity is provided and is surveyed automatically Device and its application method are measured, the present invention can be realized automatically recording data and analyzing conducting in real time for earth-continuity automatic measurement Resistance variations trend, improves testing efficiency and accuracy, manpower-free's data record are deposited for solving current earth mat continuity test The problem of.
In order to solve the above-mentioned technical problem, the technical solution adopted by the present invention are as follows:
A kind of earth-continuity self-operated measuring unit, including continuity test module, RFID control unit and control unit, the conducting Test module includes battery, voltage detection module and current detection module, and the voltage detection module is connected in parallel on battery Output end, the current detection module are connected on the output end of battery, and the output end of the battery is connected separately with voltage P-wire and testing current line, are connected with RFID wireless sensor in the RFID control unit, during described control unit includes Entreat control module, data memory module and display module, the central control module respectively with voltage detection module, current detecting Module, RFID control unit, data memory module and display module are connected.
Preferably, described control unit further includes data transmission interface module, the data transmission interface module and center Control module is connected.
The present invention also provides a kind of application method of earth-continuity self-operated measuring unit, implementation steps include:
1) there is the electronic tag of unique encodings to every equipment installation of substation to be measured or power plant high voltage station, it is described Title and number of the information containing equipment in electronic tag;
2) earth-continuity that judgement currently carries out tests whether it is to measure for the first time, then jumps execution step 3) if it is first measurement To carry out the selection link of the reference point before continuity test;Otherwise, execution step 6) is jumped;
3) equipment is selected as current device in substation to be measured or power plant high voltage station, first determine whether current device It whether is that the corresponding equipment of preset reference point then uses if it is confirmed that current device is the corresponding equipment of preset reference point RFID wireless sensor scans the electronic tag of current device, and control unit obtains scanning in the electronic tag of current device Information storage shows output to data memory module and by display module, then jumps and executes step 4) to carry out conducting survey Examination;If it is confirmed that current device is not the corresponding equipment of preset reference point, then choose that preset reference point is corresponding to be set again It is standby, jump execution step 3);
4) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
5) testing current line is connected on the corresponding equipment ground downlead of selected reference point, is connected to voltage tester line On current equipment under test down conductor, the output valve for reading voltage detection module and current detection module by control unit is complete It is measured at an earth-continuity, and measures the accuracy of confirmation earth-continuity measurement result by multiple earth-continuity, then made The electronic tag that current equipment under test is scanned with RFID wireless sensor will read the electronic tag of obtained current equipment under test Earth-continuity measurement result after information, confirmation accuracy is stored to data memory module;Then judge whether that traversal finishes, such as Fruit not yet traverses and finishes, then traverses and select next equipment as current equipment under test, jump and re-execute the steps 5);Otherwise sentence It is fixed to have completed whole earth-continuity measurements, jump execution step 9);
6) using the equipment in the RFID wireless sensor specified region of barcode scanning substation to be measured or power plant high voltage station one by one Electronic tag, the history reference that will be stored in scanning obtained electronic labeling information and data memory module by control unit Point is matched, and jumps execution step 7) if finding history reference point;Otherwise, RFID wireless sensor is continued to use one by one The electronic tag of the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station and the electronics for obtaining scanning The history reference point stored in label information and data memory module is matched;
7) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
8) testing current line is connected on the corresponding equipment ground downlead of selected reference point, is connected to voltage tester line On current equipment under test down conductor, the output valve for reading voltage detection module and current detection module by control unit is complete It is measured at an earth-continuity, and measures the accuracy of confirmation earth-continuity measurement result by multiple earth-continuity, then made The electronic tag that current equipment under test is scanned with RFID wireless sensor will read the electronic tag of obtained current equipment under test Earth-continuity measurement result after information, confirmation accuracy is stored to data memory module;Then judge whether that traversal finishes, such as Fruit not yet traverses and finishes, then traverses and select next equipment as current equipment under test, jump and re-execute the steps 5);Otherwise sentence It is fixed to have completed whole earth-continuity measurements, jump execution step 9);
9) the opposite grounded screen conducting resistance variation comparing result and change curve for referring to point device of each equipment is generated.
The present invention also provides a kind of application method of earth-continuity self-operated measuring unit, implementation steps include:
S1) there is the electronic tag of unique encodings, institute to every equipment installation of substation to be measured or power plant high voltage station State title and number of the information in electronic tag containing equipment;By substation to be measured or the equipment region of power plant high voltage station It is divided into N number of region, so that the connect grounded screen of lead is identical under the ground connection of the equipment of same area;
S2) traversal selects an equipment region as current region from N number of region;
S3 it) is directed to current region, judges the earth-continuity currently carried out tests whether it is to measure for the first time, then if it is first measurement Jump and execute step S4) to carry out the selection link of the reference point before continuity test;Otherwise, it jumps and executes step S7);
S4 it) is directed to current region, an equipment is selected as current device, first determines whether current device is preset reference The corresponding equipment of point is then swept using RFID wireless sensor if it is confirmed that current device is the corresponding equipment of preset reference point The electronic tag of current device is retouched, scanning is obtained the storage of the information in the electronic tag of current device and deposited to data by control unit It stores up module and is shown by display module and exported, then jump and execute step 4) to carry out continuity test;If it is confirmed that currently setting Standby is not the corresponding equipment of preset reference point, then chooses the corresponding equipment of preset reference point again, jump execution step 3);
S5) for the other equipment in current region in addition to the corresponding equipment of reference point, traversal selects an equipment as working as Preceding equipment under test;
S6) testing current line is connected on the corresponding equipment ground downlead of selected reference point, connects voltage tester line On current equipment under test down conductor, the output valve of voltage detection module and current detection module is read by control unit An earth-continuity measurement is completed, and measures the accuracy of confirmation earth-continuity measurement result by multiple earth-continuity, then The electronic tag that current equipment under test is scanned using RFID wireless sensor will read the electronics mark of obtained current equipment under test Earth-continuity measurement result after signing information, confirmation accuracy is stored to data memory module;Then judge whether that traversal finishes, If not yet traversal finishes, traverse and select next equipment as current equipment under test, jump and re-execute the steps S6);It is no Then determine to have completed whole earth-continuity measurements, jump and execute step S10);
S7) using the equipment in the RFID wireless sensor specified region of barcode scanning substation to be measured or power plant high voltage station one by one Electronic tag, the history reference that will be stored in scanning obtained electronic labeling information and data memory module by control unit Point is matched, and jumps execution step 7) if finding history reference point;Otherwise, RFID wireless sensor is continued to use one by one The electronic tag of the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station and the electronics for obtaining scanning The history reference point stored in label information and data memory module is matched;
S8 other equipment of the current region in addition to the corresponding equipment of reference point) are directed to, traversal selects an equipment as current Equipment under test;
S9) testing current line is connected on the corresponding equipment ground downlead of selected reference point, connects voltage tester line On current equipment under test down conductor, the output valve of voltage detection module and current detection module is read by control unit An earth-continuity measurement is completed, and measures the accuracy of confirmation earth-continuity measurement result by multiple earth-continuity, then The electronic tag that current equipment under test is scanned using RFID wireless sensor will read the electronics mark of obtained current equipment under test Earth-continuity measurement result after signing information, confirmation accuracy is stored to data memory module;Then judge whether that traversal finishes, If not yet traversal finishes, traverse and select next equipment as current equipment under test, jump and re-execute the steps S6);It is no Then determine to have completed whole earth-continuity measurements, jump and execute step S10);
S10) generate for the opposite grounded screen conducting resistance variation comparing result for referring to point device of each equipment of current region with And change curve;
S11) judge whether N number of region of substation or power plant high voltage station to be measured has stepped through to finish, if not yet time It goes through and finishes, then jump and execute step S2);Otherwise, terminate and exit.
Compared to the prior art, apparatus of the present invention have an advantage that apparatus of the present invention using Radio Frequency Identification Technology (RFID) each equipment downlead of substation is identified using electronic tag, realizes that electronic tag and equipment downlead are uniquely right It answers, tag recognition and continuity test is realized using wireless sensor and continuity test unit, to be grounded continuity test position Set and automatically recording and storing with test value, can be realized earth-continuity automatic measurement automatically record data and analysis in real time is led Logical resistance variations trend, improves testing efficiency and accuracy, manpower-free's data record, for solving current earth mat continuity test institute There are the problem of.The application method of earth-continuity self-operated measuring unit of the present invention can carry out trend analysis to the data of test, Entire test process is recorded without artificial data, and can be realized earth-continuity automatic measurement automatically records data and in real time analysis Conducting resistance variation tendency improves testing efficiency and accuracy.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the embodiment of the present invention one.
Fig. 2 is the structural schematic diagram of continuity test module in the embodiment of the present invention one.
Fig. 3 is the flow diagram of one device application method of the embodiment of the present invention.
Fig. 4 is that the grounded screen conducting resistance of the embodiment of the present invention one changes comparing result figure.
Fig. 5 is the grounded screen conducting resistance change curve of one some equipment of the embodiment of the present invention.
Marginal data: 1, continuity test module;11, battery;111, voltage tester line;112, testing current line;12, electric Press detection module;13, current detection module;2, RFID control unit;21, RFID wireless sensor;3, control unit;31, in Entreat control module;32, data memory module;33, display module;34, data transmission interface module.
Specific embodiment
Embodiment one:
As depicted in figs. 1 and 2, the earth-continuity self-operated measuring unit of the present embodiment includes continuity test module 1, RFID control list Member 2 and control unit 3, continuity test module 1 include battery 11, voltage detection module 12 and current detection module 13, voltage Detection module 12 is connected in parallel on the output end of battery 11, and current detection module 13 is connected on the output end of battery 11, battery 11 output end is connected separately with voltage tester line 111 and testing current line 112, be connected in RFID control unit 2 RFID without Line sensor 21, control unit 3 include central control module 31, data memory module 32 and display module 33, center control mould Block 31 respectively with voltage detection module 12, current detection module 13, RFID control unit 2, data memory module 32 and display Module 33 is connected.
As shown in Figure 1, control unit 3 further includes data transmission interface module 34, data transmission interface module 34 and center Control module 31 is connected.
As shown in Fig. 2, the implementation steps of the application method of the present embodiment earth-continuity self-operated measuring unit include:
1) there is the electronic tag of unique encodings, electronics to every equipment installation of substation to be measured or power plant high voltage station Title and number of the information containing equipment in label;
2) earth-continuity that judgement currently carries out tests whether it is to measure for the first time, then jumps execution step 3) if it is first measurement To carry out the selection link of the reference point before continuity test;Otherwise, execution step 6) is jumped;
3) equipment is selected as current device in substation to be measured or power plant high voltage station, first determine whether current device It whether is that the corresponding equipment of preset reference point then uses if it is confirmed that current device is the corresponding equipment of preset reference point RFID control unit 2 scans the electronic tag of current device, and control unit 3 obtains scanning in the electronic tag of current device Then information storage jumps to data memory module 32 and by the display output of display module 33 and executes step 4) to be connected Test;If it is confirmed that current device is not the corresponding equipment of preset reference point, then it is corresponding that preset reference point is chosen again Equipment jumps execution step 3);
4) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
5) testing current line 112 is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line 111 It is connected on current equipment under test down conductor, voltage detection module 12 and current detection module is read by control unit 3 13 output valve completes an earth-continuity measurement, and the standard of confirmation earth-continuity measurement result is measured by multiple earth-continuity Then true property scans the electronic tag of current equipment under test using RFID wireless sensor 21, will read obtain current and be tested The electronic labeling information of equipment confirms that the earth-continuity measurement result after accuracy is stored to data memory module 32;Then sentence Disconnected whether traverse finishes, if not yet traversal finishes, traverses and selects next equipment as current equipment under test, jump again Execute step 5);Otherwise determine to have completed whole earth-continuity measurements, jump execution step 9);
6) using RFID wireless sensor 21, the specified region of barcode scanning substation to be measured or power plant high voltage station is set one by one Standby electronic tag is gone through by control unit 3 by what is stored in scanning obtained electronic labeling information and data memory module 32 History reference point is matched, and jumps execution step 7) if finding history reference point;Otherwise, RFID wireless sensing is continued to use Device 21 electronic tag of the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station and will scan one by one To electronic labeling information and data memory module 32 in the history reference point that stores matched;
7) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
8) testing current line 112 is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line 111 It is connected on current equipment under test down conductor, voltage detection module 12 and current detection module is read by control unit 3 13 output valve completes an earth-continuity measurement, and the standard of confirmation earth-continuity measurement result is measured by multiple earth-continuity Then true property scans the electronic tag of current equipment under test using RFID wireless sensor 21, will read obtain current and be tested The electronic labeling information of equipment confirms that the earth-continuity measurement result after accuracy is stored to data memory module 32;Then sentence Disconnected whether traverse finishes, if not yet traversal finishes, traverses and selects next equipment as current equipment under test, jump again Execute step 5);Otherwise determine to have completed whole earth-continuity measurements, jump execution step 9);
9) the opposite grounded screen conducting resistance variation comparing result and change curve for referring to point device of each equipment is generated.
In the present embodiment, the opposite grounded screen conducting resistance variation comparing result such as Fig. 4 institute for referring to point device of each equipment Show, wherein label 1~10 is respectively referred to for different equipment, the corresponding equipment of label 2~5 use the corresponding equipment of label 1 as Reference point, the corresponding equipment of label 7~10 is as a reference point using the corresponding equipment of label 6, by or not dat recorder Test value can understand the situation of change for reflecting grounded screen conducting resistance.On this basis, the opposite ginseng of some equipment is ultimately generated Shown in specific Fig. 5 of grounded screen conducting resistance change curve of examination point equipment, so as to intuitively obtain grounded screen conducting resistance Situation of change.
Embodiment two:
The present embodiment is basically the same as the first embodiment, main distinction point are as follows: the substation of embodiment one or power plant high voltage station Area it is relatively small, and the present embodiment is particular for the biggish substation of area or power plant high voltage station.When substation or hair When the area of power plant's booster stations is larger, according to the difference of the connect grounded screen of lead under the ground connection of equipment, by substation or power plant The region of booster stations can be divided into N number of region (assuming that there is M platform equipment in each region), so that under the ground connection of the equipment of same area The connect grounded screen of lead is identical.It is assumed that N number of region is respectively provided with independent grounded screen, then needs to repeat n times selection reference point, press M-1 continuity test step is repeated according to step 4, one is obtained N × (M-1) a test result.
The implementation steps of the application method of earth-continuity self-operated measuring unit include: in the present embodiment
S1) there is the electronic tag of unique encodings, electricity to every equipment installation of substation to be measured or power plant high voltage station Title and number of the information containing equipment in subtab;The equipment region of substation to be measured or power plant high voltage station is divided For N number of region, so that the connect grounded screen of lead is identical under the ground connection of the equipment of same area;
S2) traversal selects an equipment region as current region from N number of region;
S3 it) is directed to current region, judges the earth-continuity currently carried out tests whether it is to measure for the first time, then if it is first measurement Jump and execute step S4) to carry out the selection link of the reference point before continuity test;Otherwise, it jumps and executes step S7);
S4 it) is directed to current region, an equipment is selected as current device, first determines whether current device is preset reference The corresponding equipment of point then uses RFID wireless sensor 21 if it is confirmed that current device is the corresponding equipment of preset reference point The electronic tag of current device is scanned, scanning is obtained the storage of the information in the electronic tag of current device to number by control unit 3 According to memory module 32 and by the display output of display module 33, then jumps and execute step 4) to carry out continuity test;If really Recognizing current device not is the corresponding equipment of preset reference point, then chooses the corresponding equipment of preset reference point again, jump and hold Row step 3);
S5) for the other equipment in current region in addition to the corresponding equipment of reference point, traversal selects an equipment as working as Preceding equipment under test;
S6) testing current line 112 is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line 111 are connected on current equipment under test down conductor, read voltage detection module 12 and current detecting mould by control unit 3 The output valve of block 13 completes an earth-continuity measurement, and measures confirmation earth-continuity measurement result by multiple earth-continuity Then accuracy scans the electronic tag of current equipment under test using RFID wireless sensor 21, the currently quilt that reading is obtained The electronic labeling information of measurement equipment confirms that the earth-continuity measurement result after accuracy is stored to data memory module 32;Then Judge whether that traversal finishes, if not yet traversal finishes, traverses and select next equipment as current equipment under test, jump weight It is new to execute step S6);Otherwise determine to have completed whole earth-continuity measurements, jump and execute step S10);
S7) using RFID wireless sensor 21, the specified region of barcode scanning substation to be measured or power plant high voltage station is set one by one Standby electronic tag is gone through by control unit 3 by what is stored in scanning obtained electronic labeling information and data memory module 32 History reference point is matched, and jumps execution step 7) if finding history reference point;Otherwise, RFID wireless sensing is continued to use Device 21 electronic tag of the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station and will scan one by one To electronic labeling information and data memory module 32 in the history reference point that stores matched;
S8 other equipment of the current region in addition to the corresponding equipment of reference point) are directed to, traversal selects an equipment as current Equipment under test;
S9) testing current line 112 is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line 111 are connected on current equipment under test down conductor, read voltage detection module 12 and current detecting mould by control unit 3 The output valve of block 13 completes an earth-continuity measurement, and measures confirmation earth-continuity measurement result by multiple earth-continuity Then accuracy scans the electronic tag of current equipment under test using RFID wireless sensor 21, the currently quilt that reading is obtained The electronic labeling information of measurement equipment confirms that the earth-continuity measurement result after accuracy is stored to data memory module 32;Then Judge whether that traversal finishes, if not yet traversal finishes, traverses and select next equipment as current equipment under test, jump weight It is new to execute step S6);Otherwise determine to have completed whole earth-continuity measurements, jump and execute step S10);
S10) generate for the opposite grounded screen conducting resistance variation comparing result for referring to point device of each equipment of current region with And change curve;
S11) judge whether N number of region of substation or power plant high voltage station to be measured has stepped through to finish, if not yet time It goes through and finishes, then jump and execute step S2);Otherwise, terminate and exit.
The above is only a preferred embodiment of the present invention, protection scope of the present invention is not limited merely to above-mentioned implementation Example, all technical solutions belonged under thinking of the present invention all belong to the scope of protection of the present invention.It should be pointed out that for the art Those of ordinary skill for, several improvements and modifications without departing from the principles of the present invention, these improvements and modifications It should be regarded as protection scope of the present invention.

Claims (4)

1. a kind of earth-continuity self-operated measuring unit, it is characterised in that: including continuity test module (1), RFID control unit (2) With control unit (3), the continuity test module (1) includes battery (11), voltage detection module (12) and current detecting mould Block (13), the voltage detection module (12) are connected in parallel on the output end of battery (11), current detection module (13) series connection Output end in battery (11), the output end of the battery (11) is connected separately with voltage tester line (111) and electric current is surveyed It tries line (112), is connected with RFID wireless sensor (21) on the RFID control unit (2), during described control unit (3) includes Entreat control module (31), data memory module (32) and display module (33), the central control module (31) respectively with voltage Detection module (12), current detection module (13), RFID control unit (2), data memory module (32) and display module (33) it is connected.
2. earth-continuity self-operated measuring unit according to claim 1, it is characterised in that: described control unit (3) is also wrapped It includes data transmission interface module (34), the data transmission interface module (34) is connected with central control module (31).
3. the application method of earth-continuity self-operated measuring unit according to claim 1 or claim 2, it is characterized in that implementation steps packet It includes:
1) there is the electronic tag of unique encodings to every equipment installation of substation to be measured or power plant high voltage station, it is described Title and number of the information containing equipment in electronic tag;
2) earth-continuity that judgement currently carries out tests whether it is to measure for the first time, then jumps execution step 3) if it is first measurement To carry out the selection link of the reference point before continuity test;Otherwise, execution step 6) is jumped;
3) equipment is selected as current device in substation to be measured or power plant high voltage station, first determine whether current device It whether is that the corresponding equipment of preset reference point then uses if it is confirmed that current device is the corresponding equipment of preset reference point RFID wireless sensor (21) scans the electronic tag of current device, and scanning is obtained the electronics of current device by control unit (3) Then information storage in label jumps execution step to data memory module (32) and by display module (33) display output 4) to carry out continuity test;If it is confirmed that current device is not the corresponding equipment of preset reference point, then choose again preset The corresponding equipment of reference point, jumps execution step 3);
4) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
5) testing current line (112) is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line (111) it is connected on current equipment under test down conductor, reads voltage detection module (12) and electric current by control unit (3) The output valve of detection module (13) completes an earth-continuity measurement, and is surveyed by multiple earth-continuity measurement confirmation earth-continuity The accuracy of result is measured, the electronic tag of current equipment under test is then scanned using RFID wireless sensor (21), will be read The electronic labeling information of the current equipment under test arrived confirms that the earth-continuity measurement result storage after accuracy stores mould to data Block (32);Then judge whether that traversal finishes, if not yet traversal finishes, traverse and select next equipment as current tested Equipment is jumped and is re-execute the steps 5);Otherwise determine to have completed whole earth-continuity measurements, jump execution step 9);
6) using RFID wireless sensor (21) the specified region of barcode scanning substation to be measured or power plant high voltage station one by one The electronic tag of equipment will be scanned in obtained electronic labeling information and data memory module (32) by control unit (3) and be deposited The history reference point of storage is matched, and jumps execution step 7) if finding history reference point;Otherwise, continue to use RFID without Line sensor (21) one by one the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station electronic tag simultaneously The middle history reference point stored of electronic labeling information and data memory module (32) that scanning obtains is matched;
7) for the other equipment in substation to be measured or power plant high voltage station in addition to the corresponding equipment of reference point, traversal Select an equipment as current equipment under test;
8) testing current line (112) is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line (111) it is connected on current equipment under test down conductor, reads voltage detection module (12) and electric current by control unit (3) The output valve of detection module (13) completes an earth-continuity measurement, and is surveyed by multiple earth-continuity measurement confirmation earth-continuity The accuracy of result is measured, the electronic tag of current equipment under test is then scanned using RFID wireless sensor (21), will be read The electronic labeling information of the current equipment under test arrived confirms that the earth-continuity measurement result storage after accuracy stores mould to data Block (32);Then judge whether that traversal finishes, if not yet traversal finishes, traverse and select next equipment as current tested Equipment is jumped and is re-execute the steps 5);Otherwise determine to have completed whole earth-continuity measurements, jump execution step 9);
9) the opposite grounded screen conducting resistance variation comparing result and change curve for referring to point device of each equipment is generated.
4. the application method of earth-continuity self-operated measuring unit according to claim 1 or claim 2, it is characterized in that implementation steps packet It includes:
S1) there is the electronic tag of unique encodings, institute to every equipment installation of substation to be measured or power plant high voltage station State title and number of the information in electronic tag containing equipment;By substation to be measured or the equipment region of power plant high voltage station It is divided into N number of region, so that the connect grounded screen of lead is identical under the ground connection of the equipment of same area;
S2) traversal selects an equipment region as current region from N number of region;
S3 it) is directed to current region, judges the earth-continuity currently carried out tests whether it is to measure for the first time, then if it is first measurement Jump and execute step S4) to carry out the selection link of the reference point before continuity test;Otherwise, it jumps and executes step S7);
S4 it) is directed to current region, an equipment is selected as current device, first determines whether current device is preset reference The corresponding equipment of point then uses RFID wireless sensor if it is confirmed that current device is the corresponding equipment of preset reference point (21) electronic tag of current device is scanned, scanning is obtained the information in the electronic tag of current device and deposited by control unit (3) It stores up data memory module (32) and is exported by display module (33) display, then jump and execute step 4) to carry out conducting survey Examination;If it is confirmed that current device is not the corresponding equipment of preset reference point, then choose that preset reference point is corresponding to be set again It is standby, jump execution step 3);
S5) for the other equipment in current region in addition to the corresponding equipment of reference point, traversal selects an equipment as working as Preceding equipment under test;
S6) testing current line (112) is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line (111) it is connected on current equipment under test down conductor, reads voltage detection module (12) and electric current by control unit (3) The output valve of detection module (13) completes an earth-continuity measurement, and is surveyed by multiple earth-continuity measurement confirmation earth-continuity The accuracy of result is measured, the electronic tag of current equipment under test is then scanned using RFID wireless sensor (21), will be read The electronic labeling information of the current equipment under test arrived confirms that the earth-continuity measurement result storage after accuracy stores mould to data Block (32);Then judge whether that traversal finishes, if not yet traversal finishes, traverse and select next equipment as current tested Equipment jumps and re-execute the steps S6);Otherwise determine to have completed whole earth-continuity measurements, jump and execute step S10);
S7) using RFID wireless sensor (21) the specified region of barcode scanning substation to be measured or power plant high voltage station one by one The electronic tag of equipment will be scanned in obtained electronic labeling information and data memory module (32) by control unit (3) and be deposited The history reference point of storage is matched, and jumps execution step 7) if finding history reference point;Otherwise, continue to use RFID without Line sensor (21) one by one the equipment in the specified region of barcode scanning substation to be measured or power plant high voltage station electronic tag simultaneously The middle history reference point stored of electronic labeling information and data memory module (32) that scanning obtains is matched;
S8 other equipment of the current region in addition to the corresponding equipment of reference point) are directed to, traversal selects an equipment as current Equipment under test;
S9) testing current line (112) is connected on the corresponding equipment ground downlead of selected reference point, by voltage tester line (111) it is connected on current equipment under test down conductor, reads voltage detection module (12) and electric current by control unit (3) The output valve of detection module (13) completes an earth-continuity measurement, and is surveyed by multiple earth-continuity measurement confirmation earth-continuity The accuracy of result is measured, the electronic tag of current equipment under test is then scanned using RFID wireless sensor (21), will be read The electronic labeling information of the current equipment under test arrived confirms that the earth-continuity measurement result storage after accuracy stores mould to data Block (32);Then judge whether that traversal finishes, if not yet traversal finishes, traverse and select next equipment as current tested Equipment jumps and re-execute the steps S6);Otherwise determine to have completed whole earth-continuity measurements, jump and execute step S10);
S10) generate for the opposite grounded screen conducting resistance variation comparing result for referring to point device of each equipment of current region with And change curve;
S11) judge whether N number of region of substation or power plant high voltage station to be measured has stepped through to finish, if not yet time It goes through and finishes, then jump and execute step S2);Otherwise, terminate and exit.
CN201811021174.0A 2018-09-03 2018-09-03 A kind of earth-continuity self-operated measuring unit and its application method Pending CN109116118A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110687380A (en) * 2019-10-18 2020-01-14 国网湖南省电力有限公司 Ground grid shunting vector testing system based on GPS source meter synchronization and application method thereof

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110687380A (en) * 2019-10-18 2020-01-14 国网湖南省电力有限公司 Ground grid shunting vector testing system based on GPS source meter synchronization and application method thereof

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