CN106526397A - Automatic intelligent checking method for intelligent substation - Google Patents
Automatic intelligent checking method for intelligent substation Download PDFInfo
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- CN106526397A CN106526397A CN201610848759.4A CN201610848759A CN106526397A CN 106526397 A CN106526397 A CN 106526397A CN 201610848759 A CN201610848759 A CN 201610848759A CN 106526397 A CN106526397 A CN 106526397A
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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
- 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
- G01R31/66—Testing of connections, e.g. of plugs or non-disconnectable joints
- G01R31/67—Testing the correctness of wire connections in electric apparatus or circuits
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The invention provides an automatic intelligent checking method for an intelligent substation, which belongs to the measurement field. A control unit, a power supply, a set of relay and a first test socket are combined to form a component A. A resistor matrix and a second test socket are combines to form a component B. Prefabricated cable plugs on both ends of a cable to be tested are respectively inserted into first and second test sockets. The control unit establishes the mapping relationship between the resistor matrix and the prefabricated cable plugs. On and off of each relay contact are sequentially controlled. The resistance of each cable core wire circuit to be tested is detected at the same time. On and off of each relay contact are controlled, and the level change of each relay port is detected. On and off of each core wire on both ends of the cable to be tested are determined. A diode is used to screen the connection sequence of each core wire of the cable to be tested on the prefabricated cable plugs to solve the problem of cable staggered wiring.
Description
Technical field
A kind of the invention belongs to fields of measurement, more particularly to detection for detecting failure in cable, transmission line or network
Device.
Background technology
Intelligent substation is using advanced, reliable, integrated and environmentally friendly smart machine, with whole station information digitalization, communication
Platform network, information sharing are standardized as basic demand, are automatically performed information gathering, measurement, control, protection, metering and examine
The basic function such as survey, meanwhile, possess support electrical network automatically control in real time, Intelligent adjustment, on-line analysis decision-making and collaboration interaction 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 includes the smart machine, combining unit and intelligent terminal that are made up of primary equipment and intelligent assembly, completes
The correlation function such as the distribution of transformer station electric energy, conversion, transmission and its measurement, control, protection, metering, status monitoring；Bay device
Refer generally to the secondary devices such as protective relaying device, measure and control device, failure wave-recording, realize the data using an interval and act on
In the function of the interval primary equipment, i.e., communicate with various distant place input/output, intelligence sensor and controller；Station level bag
Containing automated system, domain control system of standing, communication system, pair when the subsystem such as system, realize towards whole station or more than one two
The measurement of secondary device and control function, data acquisition and monitoring control, operation locking and synchronized phasor collection, electric flux
The correlation functions such as collection, protection information management.
As can be seen here, intelligent substation and traditional transformer station maximum differential are embodied in three aspects：1st, primary equipment intelligence
Change；2nd, overhaul of the equipments conditioning；3rd, secondary device networking.
In installation, debugging work progress in secondary system of intelligent substation, need using substantial amounts of cable, but in electricity
After cable lays, cable proofreader is one very important operation.
Following several instruments are used generally during cable proofreader at present：Phone, intercom, universal meter etc., to during line necessary two
People or more coordinates, and consistent signal of the agreement to line in advance, and a side must cooperation with the opposing party.A kind of conventional mode is
Shorted on one end core of one people in cable, another people are measured by root to core using universal meter in the other end of cable, are surveyed
Using the means of communication real-time communication such as phone during amount, it is determined that during when the cable of pre-test, arranging identical mark.
Authorized announcement date be on November 13rd, 2013, the Chinese utility model patent of 203289523 U of Authorization Notice No. CN
In, a kind of " telephone line line inspection device " is disclosed, which includes：Universal meter driver plate, button, microphone, receiver, for showing general-purpose
The display screen of table metrical information or call-information, for phone and the plectrum switch of function of multimeter switching, detects line interface；Institute
The universal meter driver plate stated and display screen connection universal meter internal circuit；Described button, microphone, receiver and display screen connection phone
Wiring board；The described plectrum switch of described detection line interface connection, inside the described universal meter of described plectrum switch connection
Circuit and telephone line plate.Phone is combined by the telephone line line inspection device with universal meter, is realized by plectrum switch
The switching of function, is easy to carry, and easy to use.Although the technical scheme is solved quick with universal meter, plectrum switch
Show, be easy to show and judge, switching quick problem, but its exist whole school line process it is time-consuming longer, and easily go out
Wrong deficiency.
How fast and efficiently to carry out working line, reduce to the human and material resources consumption in line process, improve work
Make efficiency, be urgent problem in currently practical work progress.
The content of the invention
The technical problem to be solved is to provide a kind of automated intelligent line inspection method for intelligent substation.Its
The order of connection of each core of cable under test on pre-fabricated electric cables plug is screened by diode, by measure loop concatenate into resistance
Value, judges the on/off relation between cable under test correspondence core and core；For the high-volume pre-fabricated electric cables of intelligent substation, adopt
Automatic test means are used, the workmanship of intelligent substation pre-fabricated electric cables can be checked rapidly, the line inspection and upper electricity before realizing installing
The front pre-fabricated electric cables line inspection, the quick damage for finding pre-fabricated electric cables installation process and misplaced, it is ensured that cable lays, the work that joint makes
Cheng Zhiliang, substantially increases line inspection operating efficiency, contributes to substantially shortening the construction period of intelligent substation.
The technical scheme is that：A kind of automated intelligent line inspection method for intelligent substation is provided, be it is characterized in that
Described automated intelligent line inspection method, for the prefabricated cable under test of intelligent substation, adopts
With judge whether the order of connection of each heart yearn of cable under test on pre-fabricated electric cables plug correct：
One control unit, power supply, a group relay and first test jack are set, component parts A is combined；
Wherein, described control unit controls the " on " or "off" of each relay tip respectively, thereby realizes electricity
Son switches on-off function
The first described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
According to the core number n of cable under test, n+2 relay is set, each relay one contact open in usual of correspondence；
The heart yearn jack of 1 to the n-1 relay tips in the relay tip, lower end and 1 to n-1 cable under test
It is connected respectively, the upper end of 1 to n-1 relay tips is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tips in the relay tip, lower end and 2 to n cable under test
It is connected respectively, the upper end of n-2 to n+2 relay tips is connected with the negative pole end of power supply；
One resistor matrix and the second test jack are set, component parts B is combined；
Wherein, the second described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
Described resistor matrix, according to the core number n of cable under test, arranges n-1 resistor matrix, is arranged in parallel the respectively
Between two test jack n heart yearn jacks；
By the pre-fabricated electric cables plug at cable under test two ends, the first and second test jacks of insertion are corresponded to respectively；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact respectively successively and carries out " leading to ", " breaking " action, and while detects that each is treated
The resistance value surveyed between cable core loop；
" leading to ", " breaking " action behavior of control unit by each relay contact of control, and detect each relay end
The level change of mouth, thus judges the break-make situation between each heart yearn of two end of cable under test；
Control unit screens the order of connection of each heart yearn of cable under test on pre-fabricated electric cables plug by diode, solves electricity
Cable interlocks wiring issue.
Specifically, 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, and the negative pole of xth diode is to be measured with (x+1)th number
Cable core connects；Numberings of the x therein for cable under test heart yearn, span are 1 to n, and n is the core number of cable under test.
Control unit described in which is single-chip microcomputer or PLC.
Each I/O port of its described control unit, is connected respectively with the control coil of each relay, by right
Control coil exports high level or low level, controls to answer relay " the leading to " of contact or " breaking ".
Described control unit presses the core number of cable under test, controls each relay tip respectively and connects corresponding resistance square
Battle array, by concatenate in measure loop into resistance value, judge cable under test correspondence core and core between on/off relation.
Described PLC is built-in with testing device kernel program, by controlling the action behavior of each relay tip, and experiences
The port level change of each relay tip, thus judges the on/off situation at two end of cable under test.
Described automated intelligent line inspection method, the line inspection before installing for intelligent substation pre-fabricated electric cables are prefabricated to check
Cables manufacturing quality.
The described automated intelligent line inspection method for intelligent substation, for pre-fabricated electric cables before electricity on intelligent substation
The line inspection, to check the damage of pre-fabricated electric cables installation process and misplaced.
Technical scheme, additionally provides a kind of according to the automatic of intelligent line inspection method work described in claim 1
Intelligent line inspection device, is characterized in that：
First and second test jacks are set；Described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
At the first test jack, according to the core number n of cable under test, n+2 relay is set, each relay correspondence one
Individual contact open in usual；
One power supply is set；
The heart yearn jack of 1 to the n-1 relay tips in the relay tip, lower end and 1 to n-1 cable under test
It is connected respectively, the upper end of 1 to n-1 relay tips is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tips in the relay tip, lower end and 2 to n cable under test
It is connected respectively, the upper end of n-2 to n+2 relay tips 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 between each heart yearn jack of the second test jack respectively；
Described resistor matrix is made up of a resistance and a diode concatenation；Wherein, the x heart yearns 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
Connection；Numberings of the x therein for cable under test heart yearn, span are 1 to n, and n is the core number of cable under test；
One control unit is set, is controlled the " on " or "off" of each relay tip respectively, is thereby realized electronics
Switch on-off function；
Each I/O port of described control unit, is connected respectively with the control coil of each relay, by control
Coil output high level processed or low level, control to answer relay " the leading to " of contact or " breaking "；
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.
During real work, the pre-fabricated electric cables plug for surveying cable two ends will be treated, correspond to insertion first and second respectively and survey
In examination socket；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact respectively successively and carries out " leading to ", " breaking " action, and while detects that each is treated
The resistance value surveyed between cable core loop, by controlling " leading to ", " breaking " action behavior of each relay contact, and detects each
The level change of individual relay port, thus judges the break-make situation between each two end of heart yearn first, last of cable under test；
Control unit screens the order of connection of each heart yearn of cable under test on pre-fabricated electric cables plug by diode, solves electricity
Cable interlocks wiring issue；
Described automated intelligent line inspection device, the line inspection before installing for intelligent substation pre-fabricated electric cables are prefabricated to check
Cables manufacturing quality；
Described automated intelligent line inspection device, it is for the line inspection of pre-fabricated electric cables before electricity on intelligent substation, prefabricated to check
The damage of cable installation process and misplaced.
Compared with the prior art, it is an advantage of the invention that：
1. the large batch of pre-fabricated electric cables of transformer station are directed to, by the way of level measurement, cable under test and electricity is judged rapidly
The workmanship of cable end, is particularly well-suited to the line inspection before intelligent substation pre-fabricated electric cables are installed；
2. by diode screening the order of connection of each core of cable under test on pre-fabricated electric cables plug, can effectively solving electricity
Cable interlocks wiring issue；
3. whole test and line inspection process are carried out automatically, drastically increase operating efficiency, it is to avoid manual operation error.
Description of the drawings
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 performance loop line map of the present invention when wiring is normal；
Fig. 4 is performance loop line map of the present invention in wiring error；
Fig. 5 is workflow block diagram of the present invention.
Specific embodiment
The present invention will be further described with reference to the accompanying drawings and examples.
Compare with traditional transformer station, the installation and debugging of intelligent substation embody simply, repeat, networking the characteristics of.With
As a example by secondary cable installs the line inspection, the secondary cable of intelligent substation is pre-fabricated electric cables, is connected equal at equipment with two end of cable
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 very high repeatability.
Although secondary cable installation process is simple, the verification and traditional cable checking process to its correctness is consistent
, i.e., necessary wiring is correct per core for cable, it is impossible to which open circuit, short circuit, misconnection situation occur.This is required to intelligent substation secondary electricity
The cable line inspection proposes new challenge, and it is 3 points that can conclude following：
1) how to solve the problems, such as that high-volume pre-fabricated electric cables install the front line inspection？
2) how to solve the sightless problem of cable core during the pre-fabricated electric cables line inspection？
3) how to solve the problems, such as that the identification of pre-fabricated electric cables plug human eye easily malfunctions？
The design of the technical program, exactly in order to solve three problems above.
In Fig. 1, the automated intelligent line inspection device of the technical program (referred to as testing device, similarly hereinafter) includes four core groups
Part.
Component one：PLC.For performing testing device kernel program, set up by control relay contact
With resistor matrix annexation.Meanwhile, PLC is borrowed and is perceived the change of relay port level, by setup program to predicting cable break-make
Situation is judged.What the line inspection results such as each core open circuit in two end of pre-fabricated electric cables, short circuit, wiring corresponding relation can be carried in PLC
Liquid crystal display screen display.
Component two：Relay group.For performing PLC instructions, connection pre-fabricated electric cables and resistor matrix, mapping relations are set up.
Component three：Resistor matrix.It is made up of components and parts such as circuit board, resistance, diodes.
Component four：First and second test jacks.For during the line inspection, by the plug correspondence insertion correspondence at two end of pre-fabricated electric cables
Test jack, set up electric loop connection.
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 method is macroscopically
Only it is made up of two parts, is easy to carry and execute-in-place.
Shown in Fig. 1, in the technical program, there is provided a kind of automated intelligent line inspection device, which is according to such as lower section
Method carries out the automatic line inspection：
Described automated intelligent line inspection device, is provided with the first and second test jacks；Described test jack is n heart yearns
Socket；Core numbers of the n for cable under test；
At the first test jack, according to the core number n of cable under test, n+2 relay is set, each relay correspondence one
Individual contact open in usual；
It is provided with a power supply；
The heart yearn jack of 1 to the n-1 relay tips in the relay tip, lower end and 1 to n-1 cable under test
It is connected respectively, the upper end of 1 to n-1 relay tips is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tips in the relay tip, lower end and 2 to n cable under test
It is connected respectively, the upper end of n-2 to n+2 relay tips 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 between each heart yearn jack of the second test jack respectively；
Described resistor matrix is made up of a resistance and a diode concatenation；Wherein, the x heart yearns 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
Connection；Numberings of the x therein for cable under test heart yearn, span are 1 to n, and n is the core number of cable under test；
A control unit is provided with, the " on " or "off" of each relay tip is controlled respectively, electricity is thereby realized
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 output high level processed or low level, control to answer relay " the leading to " of contact or " breaking "；
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 by taking four core pre-fabricated electric cables plugs as an example, designed automated intelligent line inspection principle of device is illustrated
Figure.
The design principle of testing device is mainly by setting up the mapping relations of resistor matrix and pre-fabricated electric cables plug completing.
Its designing points includes：The order of connection of each core of pre-fabricated electric cables on pre-fabricated electric cables plug is screened by diode,
Solve cable to interlock wiring issue；Resistor matrix is connected by relay tip by pre-fabricated electric cables core number, by measure loop string
The resistance value of access, judges break-make relation between correspondence core and core；Testing device kernel program is write, relay is controlled by PLC
Device action behavior simultaneously experiences each relay port level change, thus judges between each two end of heart yearn first and last of pre-fabricated electric cables
Break-make situation.
Specifically, the first and second test jacks are set；Described test jack is 4 heart yearn sockets；4 are cable under test
Core number；
In the first test jack, according to the core number 4 of cable under test, 6 relays are set, each relay correspondence one is often
Open type contact (is represented with S1, S2, S3, S4, S7, S8 in figure)；
One power supply V1 is set；
The heart yearn jack point of S1 to the S3 relay tips in the relay tip, lower end and 1 to No. 3 cable under test
Dui Ying not connect, the upper end of S1 to S3 relay tips is connected with the positive terminal of power supply；
The heart yearn jack point of S2 to the S8 relay tips in the relay tip, lower end and 2 to No. 6 cable under test
Dui Ying not connect, the upper end of S2 to S8 relay tips 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 are set, described resistor matrix divides
It is not arranged in parallel between each heart yearn of cable under test；
One control unit PLC is set, the " on " or "off" of each relay tip is controlled respectively, electricity is thereby realized
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, are connected with the positive pole of No. 3 diode, No. 3 diode it is negative
Pole, is connected with No. 4 cable under test heart yearn.
With reference to shown in Fig. 3, Fig. 4, line inspection implement body action behavior following table example is represented (by taking the quad line inspection as an example
Illustrate)：
During actually used operation, operating procedure is as shown in Figure 5.
Before checking wiring, two end of wire need to be connected on user the A ends and B ends of the design, then be pressed by PLC screen prompts
Under " F1 " button, correcting line machine can be automatically performed school line, and correlated results be included on screen, as a result with regard to line short circuit feelings
Condition, line broken circuit situation and circuit mistake line situation, if the user desired that check that last school knot fruit can also be by pressing
Associated button is freely checked.
The automated intelligent line inspection method of the technical program, in specific application scenario advantage and its substantially, is listed below：
Occasion one：Intelligent substation pre-fabricated electric cables install the front line inspection, to check pre-fabricated electric cables workmanship.Testing device
Operation is extremely simple, only requires that operating personnel possess line inspection ABC.
Occasion two：The pre-fabricated electric cables line inspection before electricity on intelligent substation.To check pre-fabricated electric cables installation process damage and
It is misplaced.
Using the automated intelligent line inspection method of the technical program, the checking process of pre-fabricated electric cables is not needed one minute,
Even longer time normal cable line inspection a few minutes (if cable error needs investigation) is compared, testing device line inspection efficiency is very high.
Work on the spot experience have shown that, all about 200-300 roots pre-fabricated electric cables of 110kV intelligent substation can be looked into half a day
It is complete, if necessary to supplier's modification, then count review time afterwards in, whole work can be completed within one day.Mutually than ever traditional 2
People's working time of 3-4 days, about raising efficiency 80%.
As technical scheme screens connection of each core of cable under test on pre-fabricated electric cables plug by diode
Sequentially, by measure loop concatenate into resistance value, judge cable under test correspondence core and core between on/off relation；Operation
It is extremely simple, only require that operating personnel possess line inspection ABC.
Technical scheme, under specific application scenario, advantage is extremely obvious, is particularly well-suited to intelligent substation
The line inspection of the pre-fabricated electric cables before installing, laying, to check pre-fabricated electric cables workmanship；And on the intelligent substation it is right before electricity
The line inspection of pre-fabricated electric cables, 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, are 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. a kind of automated intelligent line inspection method for intelligent substation, is characterized in that described automated intelligent line inspection method, pin
Prefabricated cable under test to intelligent substation, adopts
Whether the order of connection on cable plug is correct：
One control unit, power supply, a group relay and first test jack are set, component parts A is combined；
Wherein, described control unit controls the " on " or "off" of each relay tip respectively, thereby realizes electronic cutting
The on-off function of pass；
The first described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
According to the core number n of cable under test, n+2 relay is set, each relay one contact open in usual of correspondence；
The heart yearn jack of 1 to the n-1 relay tips in the relay tip, lower end and 1 to n-1 cable under test is distinguished
Correspondence connects, and the upper end of 1 to n-1 relay tips is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tips in the relay tip, lower end and 2 to n cable under test is distinguished
Correspondence connects, and the upper end of n-2 to n+2 relay tips is connected with the negative pole end of power supply；
One resistor matrix and the second test jack are set, component parts B is combined；
Wherein, the second described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
Described resistor matrix, according to the core number n of cable under test, arranges n-1 resistor matrix, is arranged in parallel respectively and surveys second
Between examination socket n heart yearn jacks；
By the pre-fabricated electric cables plug at cable under test two ends, the first and second test jacks of insertion are corresponded to respectively；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact respectively successively and carries out " leading to ", " breaking " action, and while detects each electricity to be measured
Resistance value between cable core line loop；
" leading to ", " breaking " action behavior of control unit by each relay contact of control, and detect each relay port
Level changes, and thus judges the break-make situation between each heart yearn of two end of cable under test；
Control unit screens the order of connection of each heart yearn of cable under test on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem.
2., according to the automated intelligent line inspection method for intelligent substation described in claim 1, described resistance it is characterized in that
Matrix is made up of a resistance and a diode concatenation；Wherein, the x heart yearns of cable under test, through xth resistance, with xth
The positive pole connection of number diode, the negative pole of xth diode are connected with (x+1)th cable under test heart yearn；X therein is to be measured
The numbering of cable core, span are 1 to n, and n is the core number of cable under test.
3., according to the automated intelligent line inspection method for intelligent substation described in claim 1, described control it is characterized in that
Unit is single-chip microcomputer or PLC.
4., according to the automated intelligent line inspection method for intelligent substation described in claim 1, it is characterized in that the control is single
Unit each I/O port, be connected respectively with the control coil of each relay, by control coil export high level or
Low level, controls to answer relay " the leading to " of contact or " breaking ".
5., according to the automated intelligent line inspection method for intelligent substation described in claim 1, described control it is characterized in that
Unit presses the core number of cable under test, controls each relay tip respectively and connects corresponding resistor matrix, by measure loop
Concatenate into resistance value, judge cable under test correspondence core and core between on/off relation.
6., according to the automated intelligent line inspection method for intelligent substation described in claim 1, it is characterized in that in described PLC
Testing device kernel program is equipped with, by controlling the action behavior of each relay tip, and the end of each relay tip is experienced
Mouth level change, thus judges the on/off situation at two end of cable under test.
7., according to the automated intelligent line inspection method for intelligent substation described in claim 1, it is characterized in that described automatic
Intelligent line inspection method, the line inspection before installing for intelligent substation pre-fabricated electric cables, to check pre-fabricated electric cables workmanship.
8., according to the automated intelligent line inspection method for intelligent substation described in claim 1, described being used for it is characterized in that
The automated intelligent line inspection method of intelligent substation, for the line inspection of pre-fabricated electric cables before electricity on intelligent substation, to check prefabricated electricity
The damage of cable installation process and misplaced.
9. a kind of automated intelligent line inspection device according to intelligent line inspection method work described in claim 1, is characterized in that：
First and second test jacks are set；Described test jack is n heart yearn sockets；Core numbers of the n for cable under test；
At the first test jack, according to the core number n of cable under test, n+2 relay is set, 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 tips in the relay tip, lower end and 1 to n-1 cable under test is distinguished
Correspondence connects, and the upper end of 1 to n-1 relay tips is connected with the positive terminal of power supply；
The heart yearn jack of n-2 to the n+2 relay tips in the relay tip, lower end and 2 to n cable under test is distinguished
Correspondence connects, and the upper end of n-2 to n+2 relay tips 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 is set, described resistor matrix divides
It is not arranged in parallel 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 yearns of cable under test, pass through
Xth resistance, is connected with the positive pole of xth diode, the negative pole of xth diode, is connected with (x+1)th cable under test heart yearn
Connect；Numberings of the x therein for cable under test heart yearn, span are 1 to n, and n is the core number of cable under test；
One control unit is set, is controlled the " on " or "off" of each relay tip respectively, is thereby realized electronic switch
On-off function；
Each I/O port of described control unit, is connected respectively with the control coil of each relay, by control line
Circle output high level or low level, control to answer relay " the leading to " of contact or " breaking "；
Described control unit, power supply, relay group and the first test jack are combined, and form components A, described electricity
Resistance matrix, the second test jack are combined, and form part B.
10., according to the automated intelligent line inspection device described in claim 9, it is characterized in that treating the prefabricated electricity for surveying cable two ends
Cable plug, corresponds to the first and second test jacks of insertion respectively；
Control unit sets up the mapping relations of resistor matrix and pre-fabricated electric cables plug；
Control unit controls each relay contact respectively successively and carries out " leading to ", " breaking " action, and while detects each electricity to be measured
Resistance value between cable core line loop, by controlling " leading to ", " breaking " action behavior of each relay contact, and detect each after
The level change of electrical equipment port, thus judges the break-make situation between each two end of heart yearn first, last of cable under test；
Control unit screens the order of connection of each heart yearn of cable under test on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem；
Described automated intelligent line inspection device, the line inspection before installing for intelligent substation pre-fabricated electric cables, to check pre-fabricated electric cables
Workmanship；
Described automated intelligent line inspection device, for the line inspection of pre-fabricated electric cables before electricity on intelligent substation, to check pre-fabricated electric cables
The damage of installation process and misplaced.
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| CN113359065A (en) * | 2020-03-04 | 2021-09-07 | 佛山市云米电器科技有限公司 | Antenna testing method, device and computer readable storage medium |
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| CN113359066A (en) * | 2020-03-04 | 2021-09-07 | 佛山市云米电器科技有限公司 | Antenna testing method, device and computer readable storage medium |
| CN113359065A (en) * | 2020-03-04 | 2021-09-07 | 佛山市云米电器科技有限公司 | Antenna testing method, device and computer readable storage medium |
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Address after: 200235 No. 39, Xuhui District, Shanghai, Wuzhong Road Co-patentee after: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Patentee after: SHANGHAI POWER TRANSMISSION AND TRANSFORMATION ENGINEERING CO.,LTD. Address before: 200235 No. 39, Xuhui District, Shanghai, Wuzhong Road Co-patentee before: STATE GRID SHANGHAI MUNICIPAL ELECTRIC POWER Co. Patentee before: Shanghai Power Transmission and Transformation Engineering Co. |
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