CN106291254A - A kind of automated intelligent line inspection device for intelligent substation - Google Patents
A kind of automated intelligent line inspection device for intelligent substation Download PDFInfo
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- CN106291254A CN106291254A CN201610847911.7A CN201610847911A CN106291254A CN 106291254 A CN106291254 A CN 106291254A CN 201610847911 A CN201610847911 A CN 201610847911A CN 106291254 A CN106291254 A CN 106291254A
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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
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A kind of automated intelligent line inspection device for intelligent substation, belongs to fields of measurement.It arranges two test jacks；N+2 relay is set at the first test jack；1 resistor matrix of n is set at the second test jack；Cable under test two ends pre-fabricated electric cables plug correspondence is inserted two test jacks；Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；Control unit controls each relay contact the most successively and carries out " leading to ", " breaking " action, and detects the resistance value between each cable under test heart yearn loop；Control unit is by controlling " leading to ", " breaking " action behavior of each relay contact, and detects the level change of each relay port, it is judged that the break-make situation between cable under test two each heart yearn of end；It screens the cable under test each heart yearn order of connection on pre-fabricated electric cables plug by diode, solves cable and interlocks wiring issue.Can be widely used for design and the manufacture field of testing lines device.
Description
Technical field
The invention belongs to fields of measurement, particularly relate to a kind of for detecting the detection of fault in cable, transmission line or network
Device.
Background technology
Intelligent substation is to use advanced, reliable, the integrated and smart machine of environmental protection, with information digitalization of entirely standing, communication
Platform network, information sharing are standardized as basic demand, are automatically performed information gathering, measure, control, protect, measure and examine
The basic functions such as survey, meanwhile, possess support electrical network automatically control in real time, Intelligent adjustment, on-line analysis decision-making and collaborative interactive etc.
The transformer station of Premium Features.
In power transmission and relay protection system, Intelligent Substation System is commonly divided into 3-tier architecture: process layer, wall
And station level.Process layer comprises smart machine, combining unit and the intelligent terminal being made up of primary equipment and intelligent assembly, completes
The correlation functions such as transformer station's electric energy distributes, converts, transmits and measures, controls, protects, measures, status monitoring；Bay device
Refer generally to the secondary devices such as protective relaying device, measure and control device, failure wave-recording, it is achieved use the data being spaced and act on
In the function of this interval primary equipment, i.e. with the input/output of various distant places, intelligence sensor and controller communication；Station level bag
Containing automated system, territory control system of standing, communication system, pair time the subsystem such as system, it is achieved towards full station or more than one two
Measurement and control function, data acquisition and the supervision of secondary device control, operate locking and synchronized phasor collection, electric flux
Gather, protect the correlation functions such as information management.
As can be seen here, intelligent substation and tradition transformer station maximum differential are embodied in three aspects: 1, primary equipment is intelligent
Change；2, overhaul of the equipments conditioning；3, secondary device networking.
In the installation, debugging work progress of secondary system of intelligent substation, need to use substantial amounts of cable, but at electricity
After cable lays, cable proofreader is one very important operation.
Generally use at present following several instrument during cable proofreader: phone, transmitter receiver, circuit tester etc., to must two during line
People or above cooperation, and the agreement consistent signal to line in advance, a side must cooperation with the opposing party.A kind of conventional mode is
One people uses circuit tester to measure core by root at the other end of cable the shorted on one end core of cable, another people, surveys
Use the means of communication real-time communications such as phone during amount, when determining when the cable of pre-test, identical labelling is set.
Authorized announcement date is on November 13rd, 2013, the Chinese utility model patent of Authorization Notice No. CN 203289523 U
In, disclose one " telephone line line inspection device ", comprising: circuit tester driver plate, button, microphone, receiver, be used for showing general-purpose
Table metrical information or the display screen of call-information, for the plectrum switch of phone with function of multimeter switching, detect line interface；Institute
The circuit tester driver plate stated and display screen connect circuit tester internal circuit；Described button, microphone, receiver and display screen connect phone
Wiring board；The described plectrum switch described in detection line interface connection, inside the described circuit tester described in plectrum switch connection
Circuit and telephone line plate.Phone is combined by this telephone line line inspection device with circuit tester, is realized by plectrum switch
The switching of function, it is simple to carry, and easy to use.Although this technical scheme circuit tester, plectrum switch solves quickly
Show, be easy to display and judge, switch quick problem, but its process that there is whole school line is the longest, and easily go out
Wrong deficiency.
How can carry out fast and efficiently lineman is made, reduce the human and material resources consumption in line process, improve work
Make efficiency, be urgent problem in currently practical work progress.
Summary of the invention
The technical problem to be solved is to provide a kind of automated intelligent line inspection device for intelligent substation.Its
By diode screen the cable under test each core order of connection on pre-fabricated electric cables plug, by measure loop concatenate into resistance
Value, it is judged that the on/off relation between cable under test correspondence core and core；For the high-volume pre-fabricated electric cables of intelligent substation, adopt
Use automatic test means, the workmanship of intelligent substation pre-fabricated electric cables can be checked rapidly, it is achieved the front line inspection is installed and powers on
The front pre-fabricated electric cables line inspection, quickly finds the damage of pre-fabricated electric cables installation process and misplaced, it is ensured that the work that cable lays, joint makes
Cheng Zhiliang, substantially increases line inspection work efficiency, contributes to substantially shortening the construction period of intelligent substation.
A kind of automated intelligent line inspection device for intelligent substation of offer is provided, it is characterized in that:
First and second test jacks are set；Described test jack is n heart yearn socket；N is the core number of cable under test；
At the first test jack, according to the core number n of cable under test, n+2 relay, each relay correspondence one are set
Individual contact open in usual；
One power supply is set；
The heart yearn jack of 1 to the n-1 relay tip in described relay tip, lower end and 1 to n-1 cable under test
Being connected respectively, the upper end of 1 to n-1 relay tip is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tip in described relay tip, lower end and 2 to n cable under test
Being connected respectively, the upper end of n-2 to n+2 relay tip is connected with the negative pole end of power supply；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix, described resistance square are set
Battle array, is arranged in parallel respectively between each heart yearn jack of cable under test；
One control unit is set, controls " on " or the "off" of each relay tip respectively, thereby realize electronics
Switch on-off function；
By the pre-fabricated electric cables plug at cable under test two ends, correspondence inserts the first and second test jacks respectively；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact the most successively and carries out " leading to ", " breaking " action, and detects each simultaneously and treat
Survey the resistance value between cable core loop；
Control unit is by controlling " leading to ", " breaking " action behavior of each relay contact, and detects each relay end
The level change of mouth, thus judges the break-make situation between cable under test two each heart yearn of end；
Control unit screens the cable under test each heart yearn order of connection on pre-fabricated electric cables plug by diode, solves electricity
Cable interlocks wiring issue.
Concrete, described control unit is single-chip microcomputer or PLC.
Concrete, each I/O port of described control unit, it is connected respectively with the control coil of each relay,
By to control coil output high level or low level, controlling relay is answered " the leading to " or " breaking " of contact.
Concrete, described resistor matrix is made up of a resistance and a diode concatenation；Wherein, the x of cable under test
Number heart yearn, through xth resistance, is connected with the positive pole of xth diode, the negative pole of xth diode, to be measured with (x+1)th number
Cable core connects；X therein is the numbering of cable under test heart yearn, span be 1 to n, n be the core number of cable under test.
Further, described automated intelligent line inspection device, screen each core of cable under test at pre-fabricated electric cables by diode
The order of connection on plug, solves cable and interlocks wiring issue.
Further, described automated intelligent line inspection device, by the core number of cable under test, connect electricity by relay tip
Resistance matrix, by measure loop concatenate into resistance value, it is judged that the on/off relation between cable under test correspondence core and core.
Concrete, described PLC is built-in with testing device kernel program, by controlling the action row of each relay tip
For, and experience each relay tip port level change, thus judge the on/off situation of cable under test two end.
Further, described control unit, power supply, relay group and the first test jack are combined, and are formed
Components A, described resistor matrix, the second test jack are combined, and form part B.
Further, described automated intelligent line inspection device, the line inspection before intelligent substation pre-fabricated electric cables is installed, with
Check pre-fabricated electric cables workmanship.
Further, the described automated intelligent line inspection device for intelligent substation, before intelligent substation powers on
The line inspection of pre-fabricated electric cables, to check the damage of pre-fabricated electric cables installation process and misplaced.
Compared with the prior art, the invention have the advantage that
1., for the large batch of pre-fabricated electric cables of transformer station, use the mode of level measurement, judge cable under test and electricity rapidly
The workmanship of cable end, is particularly well-suited to the line inspection before intelligent substation pre-fabricated electric cables is installed；
2. screen the cable under test each core order of connection on pre-fabricated electric cables plug by diode, can effectively solve electricity
Cable interlocks wiring issue；
The most whole test and line inspection process are carried out automatically, drastically increase work efficiency, it is to avoid manual operation error.
Accompanying drawing explanation
Fig. 1 is the constituent system modules schematic diagram of the present invention；
Fig. 2 is the system principle schematic diagram of the present invention；
Fig. 3 is the present invention performance loop layout when wiring is normal；
Fig. 4 is the present invention performance loop layout when wiring error；
Fig. 5 is workflow block diagram of the present invention.
Detailed description of the invention
The present invention will be further described with embodiment below in conjunction with the accompanying drawings.
Transformer station compares with tradition, and the installation and debugging of intelligent substation embody simply, repeat, the feature of networking.With
As a example by secondary cable installs the line inspection, the secondary cable of intelligent substation is pre-fabricated electric cables, is connected at equipment equal with cable two end
Pre-fabricated electric cables socket is installed, is inserted directly into during in-site installation, and insertion process band is directional.So, whole mistake
Journey is simple and has the highest repeatability.
Although secondary cable installation process is simple, but it is consistent to the verification of its correctness with traditional cable checking process
, i.e. the every core of cable must wiring correct, it is impossible to open a way, short-circuit, misconnection situation.This requires intelligent substation secondary electricity
The cable line inspection proposes new challenge, and can conclude following is 3 points:
1) problem of the line inspection before high-volume pre-fabricated electric cables is installed how is solved？
2) the sightless problem of cable core during the pre-fabricated electric cables line inspection how is solved？
3) problem that pre-fabricated electric cables plug human eye identification easily makes mistakes how is solved？
The design of the technical program, it is simply that in order to solve three problems above.
In Fig. 1, the testing device of the technical program includes four core components.
Assembly one: PLC.For performing testing device kernel program, set up by controlling relay tip
With resistor matrix annexation.Meanwhile, PLC borrows perception relay port level to change, by setup program to precognition cable break-make
Situation judges.The line inspection results such as pre-fabricated electric cables two end each core open circuit, short circuit, wiring corresponding relation all can carry at PLC
Liquid crystal display screen display.
Assembly two: relay group.For performing PLC instruction, connect pre-fabricated electric cables and resistor matrix, set up mapping relations.
Assembly three: resistor matrix.By components and parts compositions such as circuit board, resistance, diodes.
Assembly four: the first and second test jack.When the line inspection, the plug correspondence of pre-fabricated electric cables two end is inserted correspondence
Test jack, set up electric loop connect.
Described control unit, power supply, relay group and the first test jack are combined, and form components A, described
Resistor matrix, the first test jack combine, formed part B, so, whole automated intelligent line inspection device is macroscopically
Only it is made up of two parts, it is simple to carry and execute-in-place.
Shown in Fig. 1, in the technical program, it is provided that a kind of automated intelligent line inspection device, its inventive point is:
It is provided with the first and second test jacks；Described test jack is n heart yearn socket；N is the core number of cable under test；
At the first test jack, according to the core number n of cable under test, n+2 relay, each relay correspondence one are set
Individual contact open in usual；
It is provided with a power supply；
The heart yearn jack of 1 to the n-1 relay tip in described relay tip, lower end and 1 to n-1 cable under test
Being connected respectively, the upper end of 1 to n-1 relay tip is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tip in described relay tip, lower end and 2 to n cable under test
Being connected respectively, the upper end of n-2 to n+2 relay tip is connected with the negative pole end of power supply；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix, described resistance square are set
Battle array, is arranged in parallel respectively between each heart yearn jack of the second test jack；
Described resistor matrix is made up of a resistance and a diode concatenation；Wherein, the x heart yearn of cable under test,
Through xth resistance, it is connected with the positive pole of xth diode, the negative pole of xth diode, with (x+1)th cable under test heart yearn
Connect；X therein is the numbering of cable under test heart yearn, span be 1 to n, n be the core number of cable under test；
It is provided with a control unit, controls " on " or the "off" of each relay tip respectively, thereby realize electricity
Son switches on-off function；
Each I/O port of described control unit, is connected respectively with the control coil of each relay, by control
Coil processed output high level or low level, control to answer relay " the leading to " or " breaking " of contact；
Described control unit, power supply, relay group and the first test jack are combined, and form components A, described
Resistor matrix, the second test jack combine, formed part B.
In Fig. 2, give as a example by four core pre-fabricated electric cables plugs, designed testing device principle schematic.
The design principle of testing device is mainly completed by the mapping relations setting up resistor matrix and pre-fabricated electric cables plug.
Its designing points includes: screen the pre-fabricated electric cables each core order of connection on pre-fabricated electric cables plug by diode,
Solve cable to interlock wiring issue；Resistor matrix is connected by relay tip, by measure loop string by pre-fabricated electric cables core number
The resistance value accessed, it is judged that break-make relation between corresponding core and core；Write testing device kernel program, control relay by PLC
Device action behavior also experiences the change of each relay port level, thus judges between each heart yearn first and last two end of pre-fabricated electric cables
Break-make situation.
Concrete, the first and second test jacks are set；Described test jack is 4 heart yearn sockets；4 is cable under test
Core number；
In the first test jack, according to the core number 4 of cable under test, arranging 6 relays, each relay correspondence one is often
Open type contact (represents with S1, S2, S3, S4, S7, S8 in figure)；
One power supply V1 is set；
S1 to S3 relay tip in described relay tip, the heart yearn jack of lower end and 1 to No. 3 cable under test divides
Corresponding connection, the upper end of S1 to S3 relay tip is connected with the positive terminal of power supply；
S2 to S8 relay tip in described relay tip, the heart yearn jack of lower end and 2 to No. 6 cable under test divides
Corresponding connection, the upper end of S2 to S8 relay tip is connected with the negative pole end of power supply；
In the second test jack, according to the core number 4 of cable under test, 3 resistor matrixes, described resistor matrix are set, divide
It is not arranged in parallel between each heart yearn of cable under test；
One control unit PLC is set, controls " on " or the "off" of each relay tip respectively, thereby realize electricity
Son switches on-off function；
Resistor matrix is made up of a resistance and a diode concatenation；Wherein, No. 1 heart yearn of cable under test, through the 1st
Number resistance, is connected with the positive pole of No. 1 diode, the negative pole of No. 1 diode, is connected with No. 2 cable under test heart yearn；Successively
Analogize, No. 3 heart yearns of cable under test, through No. 3 resistance, be connected with the positive pole of No. 3 diode, bearing of No. 3 diode
Pole, is connected with No. 4 cable under test heart yearn.
Shown in Fig. 3, Fig. 4, testing device concrete action behavior following table example represents (as a example by the quad line inspection
Illustrate):
During actually used operation, operating procedure is as shown in Figure 5.
Before checking wiring, wire two end need to be connected on A end and the B end of the design by user, is then pressed by PLC screen prompt
Under " F1 " button, correcting line machine can be automatically performed school line, and be shown by correlated results on screen, and result is about line short circuit feelings
Condition, line broken circuit situation and circuit mistake line situation, if the user desired that check that last school line result can also be by pressing
Associated button is freely checked.
The automated intelligent line inspection device of the technical program, in specific application scenario advantage and substantially, is listed below:
Occasion one: intelligent substation pre-fabricated electric cables installs the front line inspection, in order to check pre-fabricated electric cables workmanship.Testing device
Operate extremely simple, only require that operator possess line inspection ABC.
Occasion two: intelligent substation power on before the pre-fabricated electric cables line inspection.In order to check pre-fabricated electric cables installation process damage and
Misplaced.
Using the automated intelligent line inspection device of the technical program, the checking process of a pre-fabricated electric cables need not one minute,
Comparing normal cable line inspection a few minutes even more long-time (if cable is made mistakes needs investigation), testing device line inspection efficiency is the highest.
Work on the spot experience have shown that, 110kV intelligent substation all about 200-300 root pre-fabricated electric cables can be looked into half a day
Complete, if needing supplier to revise, then counting review time afterwards in, within one day, can complete all to work.The most traditional 2
People's working time of 3-4 days, about raising efficiency 80%.
Owing to technical scheme screens the connection on pre-fabricated electric cables plug of the cable under test each core by diode
Sequentially, by measure loop concatenate into resistance value, it is judged that the on/off relation between cable under test correspondence core and core；Operation
Extremely simple, only require that operator possess line inspection ABC.
Technical scheme, under specific application scenario, advantage is extremely obvious, is particularly well-suited to intelligent substation
The pre-fabricated electric cables line inspection before installing, laying, in order to check pre-fabricated electric cables workmanship；And it is right before intelligent substation powers on
The line inspection of pre-fabricated electric cables, in order to check the damage of pre-fabricated electric cables installation process and misplaced.The people during the line inspection can be greatly reduced
Power, material resources consumption, be greatly enhanced line inspection efficiency.
The method can be widely used in design and the manufacture field of transformer station's testing lines device.
Claims (10)
1., for an automated intelligent line inspection device for intelligent substation, it is characterized in that:
First and second test jacks are set；Described test jack is n heart yearn socket；N is the core number of cable under test；
At the first test jack, according to the core number n of cable under test, arranging n+2 relay, each relay correspondence one is often
Open type contact；
One power supply is set；
The heart yearn jack of 1 to the n-1 relay tip in described relay tip, lower end and 1 to n-1 cable under test is respectively
Corresponding connection, the upper end of 1 to n-1 relay tip is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tip in described relay tip, lower end and 2 to n cable under test is respectively
Corresponding connection, the upper end of n-2 to n+2 relay tip is connected with the negative pole end of power supply；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix, described resistor matrix are set, divide
It is not arranged in parallel between each heart yearn jack of cable under test；
One control unit is set, controls " on " or the "off" of each relay tip respectively, thereby realize electrical switch
On-off function；
By the pre-fabricated electric cables plug at cable under test two ends, correspondence inserts the first and second test jacks respectively；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact the most successively and carries out " leading to ", " breaking " action, and detects each electricity to be measured simultaneously
Resistance value between core loop；
Control unit is by controlling " leading to ", " breaking " action behavior of each relay contact, and detects each relay port
Level changes, and thus judges the break-make situation between cable under test two each heart yearn of end；
Control unit screens the cable under test each heart yearn order of connection on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem.
2., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described control
Unit is single-chip microcomputer or PLC.
3., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described control is single
Unit each I/O port, be connected respectively with the control coil of each relay, by control coil output high level or
Low level, controls to answer relay " the leading to " or " breaking " of contact.
4., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described resistance
Matrix is made up of a resistance and a diode concatenation；Wherein, the x heart yearn of cable under test, through xth resistance, with xth
The positive pole of number diode connects, and the negative pole of xth diode is connected with (x+1)th cable under test heart yearn；X therein is to be measured
The numbering of cable core, span be 1 to n, n be the core number of cable under test.
5., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described automatic
Intelligence line inspection device, screens the cable under test each core order of connection on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem.
6., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described automatic
Intelligence line inspection device, by the core number of cable under test, connects resistor matrix by relay tip, by measure loop concatenate into
Resistance value, it is judged that the on/off relation between cable under test correspondence core and core.
7. according to the automated intelligent line inspection device for intelligent substation described in claim 1, in it is characterized in that described PLC
It is equipped with testing device kernel program, by controlling the action behavior of each relay tip, and experiences the end of each relay tip
Mouth level change, thus judges the on/off situation of cable under test two end.
8., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described control
Unit, power supply, relay group and the first test jack are combined, and form components A, described resistor matrix, second survey
Examination receptacle combinations together, forms part B.
9., according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described automatic
Intelligence line inspection device, the line inspection before intelligent substation pre-fabricated electric cables is installed, to check pre-fabricated electric cables workmanship.
10. according to the automated intelligent line inspection device for intelligent substation described in claim 1, it is characterized in that described for
The automated intelligent line inspection device of intelligent substation, the line inspection of pre-fabricated electric cables before intelligent substation powers on, to check prefabricated electricity
The damage of cable installation process and misplaced.
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| CN201610847911.7A CN106291254B (en) | 2016-09-23 | 2016-09-23 | Automatic intelligent line inspection device for intelligent substation |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109884470A (en) * | 2019-03-11 | 2019-06-14 | 苏州腾征智能装备有限公司 | Accurate testing lines system |
| CN109884457A (en) * | 2017-12-06 | 2019-06-14 | 航天科工惯性技术有限公司 | Cable makes auxiliary device and the test method for providing wiring connector for oneself using it |
| CN110622469A (en) * | 2017-05-17 | 2019-12-27 | Abb瑞士股份有限公司 | Method and access unit for accessing an industrial communication network |
| CN114167215A (en) * | 2021-12-03 | 2022-03-11 | 国网湖南省电力有限公司 | Transformer substation secondary cable alignment system and alignment method thereof |
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| CN114167215B (en) * | 2021-12-03 | 2023-08-15 | 国网湖南省电力有限公司 | Transformer substation secondary cable alignment system and alignment method thereof |
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