CN106526397B - A kind of automated intelligent line inspection method for intelligent substation - Google Patents
A kind of automated intelligent line inspection method for intelligent substation Download PDFInfo
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- CN106526397B CN106526397B CN201610848759.4A CN201610848759A CN106526397B CN 106526397 B CN106526397 B CN 106526397B CN 201610848759 A CN201610848759 A CN 201610848759A CN 106526397 B CN106526397 B CN 106526397B
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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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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
A kind of automated intelligent line inspection method for intelligent substation belongs to fields of measurement.It is arranged a control unit, a power supply, a group relay and first test jack and combines component parts A；One resistor matrix and the second test jack are set, component parts B is combined；The pre-fabricated electric cables plug at cable under test both ends is inserted into the first and second test jacks respectively；Control unit establishes the mapping relations of resistor matrix Yu pre-fabricated electric cables plug；It successively controls each relay contact and carries out " logical ", " disconnected " movement, and detect the resistance value between each cable under test core wire circuit simultaneously；By controlling " logical ", " disconnected " action behavior of each relay contact, and the level change of each relay port is detected, thus judges the break-make situation between each core wire in two end of cable under test；The order of connection of each core wire of cable under test on pre-fabricated electric cables plug is screened by diode, cable is solved and interlocks wiring issue.
Description
Technical field
The invention belongs to fields of measurement more particularly to a kind of detections for failure in detection cable, transmission line or network
Device.
Background technique
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 collection, measurement, control, protection, metering and inspection
Survey etc. basic functions, meanwhile, have support power grid automatically controls in real time, intelligence adjust, on-line analysis decision and collaboration interact etc.
The substation of Premium Features.
In power Transmission and after in insurance system, intelligent Substation System is commonly divided into 3-tier architecture: process layer, wall
And station level.Process layer includes smart machine, combining unit and the intelligent terminal being made of primary equipment and intelligent assembly, is completed
Substation's electric energy is distributed, converted, transmitting and its correlation functions such as 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, realizes the data using an interval and effect
In the function of the interval primary equipment, i.e., communicated with various distant place input/output, intelligence sensor and controller；Station level packet
Containing automated system, the subsystems such as domain control system, communication system, time synchronization system of standing, realize towards whole station or more than one two
The measurement and control function of secondary device, data acquisition and monitoring control, operation locking and synchronized phasor acquisition, electric flux
The correlation functions such as acquisition, protection information management.
It can be seen that intelligent substation and traditional substation maximum differential are embodied in three aspects: 1, primary equipment intelligence
Change；2, overhaul of the equipments conditioning；3, secondary device networking.
In the installation of secondary system of intelligent substation, debugging work progress, need using a large amount of cable, however in electricity
After cable laying, cable proofreader is one of very important process.
Following several tools: phone, intercom, multimeter etc. are generally used when cable proofreader at present, necessary two when to line
People or more than cooperate, and for agreement to the consistent signal of line, a side and another party must cooperations in advance.A kind of common mode is
In the shorted on one end core of cable, another people measures core by root using multimeter in the other end of cable one people, surveys
Identical label is set when determining the cable currently measured using meanss of communication real-time communications such as phones during amount.
Authorized announcement date is on November 13rd, 2013, the Chinese utility model patent of Authorization Notice No. CN 203289523U
In, disclose a kind of " telephone line line inspection device " comprising: multimeter driver plate, key, microphone, earpiece, for showing general-purpose
The display screen of table metrical information or call-information, the plectrum for phone and function of multimeter switching switch, and detect line interface；Institute
Multimeter driver plate and display screen the connection multimeter internal circuit stated；The key, microphone, earpiece and display screen connect phone
Wiring board；The detection line interface connection plectrum switch, the plectrum switch inside the connection multimeter
Circuit and telephone line plate.The telephone line line inspection device combines phone and multimeter, is switched and is realized by plectrum
The switching of function, it is easy to carry and easy to use.Although technical solution multimeter, plectrum switch are quick to solve
Display, convenient for showing and judging, switch quick problem, but its there are the processes of entire school line to take a long time, and be easy
Wrong deficiency.
How fast and efficiently to carry out working to line, reduce and the human and material resources in line process are consumed, improves work
Make efficiency, is urgent problem in currently practical work progress.
Summary of the invention
Technical problem to be solved by the invention is to provide a kind of automated intelligent line inspection methods for intelligent substation.Its
Screen the order of connection of each core of cable under test on pre-fabricated electric cables plug by diode, by measure loop concatenate into resistance
Value, judges that cable under test corresponds to the on/off relationship between core and core；For the high-volume pre-fabricated electric cables of intelligent substation, adopt
With automatic test means, the manufacturing quality of intelligent substation pre-fabricated electric cables can be checked rapidly, realize the line inspection before installing and powered on
The preceding pre-fabricated electric cables line inspection quickly finds the damage and misplaced, the work that the laying of guarantee cable, connector make of pre-fabricated electric cables installation process
Cheng Zhiliang substantially increases line inspection working efficiency, facilitates the construction period for being obviously shortened intelligent substation.
The technical scheme is that a kind of automated intelligent line inspection method for intelligent substation is provided, it is characterized in that
The automated intelligent line inspection method carries out the quick line inspection for the prefabricated cable under test of intelligent substation with the following method
With judge whether the order of connection of each core wire of cable under test on pre-fabricated electric cables plug correct:
One control unit, a power supply, a group relay and first test jack are set, component parts A is combined；
Wherein, the control unit controls the " on " or "off" of each relay tip respectively, realizes electricity whereby
The on-off function of sub switch
First test jack is n core wire socket；N is the core number of cable under test；
According to the core number n of cable under test, n+2 relay, the corresponding contact open in usual of each relay are set；
1 to n-1 relay tip in the relay tip, lower end with 1 to n-1 cable under test core wire jack
It is connected respectively, 1 to n-1 relay tip upper end and the positive terminal of power supply connect；
N to n+2 relay tip in the relay tip, lower end with 2 to n cable under test core wire jack point
It is not correspondingly connected with, the upper end of n to n+2 relay tip and the negative pole end of power supply connect；
One resistor matrix and the second test jack are set, component parts B is combined；
Wherein, second test jack is n core wire socket；N is the core number of cable under test；
N-1 resistor matrix is arranged according to the core number n of cable under test in the resistor matrix, is arranged in parallel respectively the
Between two test jack n core wire jacks；
By the pre-fabricated electric cables plug at cable under test both ends, the first and second test jacks of insertion are respectively corresponded；
Control unit establishes the mapping relations of resistor matrix Yu pre-fabricated electric cables plug；
Control unit successively control respectively each relay contact carry out " logical ", it is " disconnected " act, and detect simultaneously it is each to
Survey the resistance value between cable core circuit；
Control unit detects each relay end by controlling " logical ", " disconnected " action behavior of each relay contact
The level change of mouth, thus judges the break-make situation between each core wire in two end of cable under test；
Control unit screens the order of connection of each core wire of cable under test on pre-fabricated electric cables plug by diode, solves electricity
Cable interlocks wiring issue.
Specifically, the resistor matrix is made of a resistance and a diode concatenation；Wherein, the x of cable under test
Number core wire is connect, the cathode of xth diode is to be measured with (x+1)th number by xth resistance with the anode of xth diode
Cable core connection；X therein is the number of cable under test core wire, and value range is 1 to n, and n is the core number of cable under test.
Control unit described in it is single-chip microcontroller or PLC.
Each port I/O of its described control unit, is connected respectively, by right with the control coil of each relay
Control coil exports high level or low level, to control " logical " or " disconnected " of corresponding relay tip.
The control unit presses the core number of cable under test, controls each relay tip respectively and connects corresponding resistance square
Battle array, by concatenated in measure loop into resistance value, judge that cable under test corresponds to the on/off relationship between core and core.
The PLC is built-in with testing device kernel program, by controlling the action behavior of each relay tip, and experiences
The port level of each relay tip changes, and thus judges the on/off situation at two end of cable under test.
The automated intelligent line inspection method, it is prefabricated to check for the line inspection before the installation of intelligent substation pre-fabricated electric cables
Cables manufacturing quality.
The automated intelligent line inspection method for intelligent substation, pre-fabricated electric cables before being powered on for intelligent substation
The line inspection, to check the damage of pre-fabricated electric cables installation process and misplaced.
Technical solution of the present invention additionally provides a kind of according to the automatic of the work of intelligence line inspection method described in claim 1
Intelligent line inspection device, it is characterized in that:
First and second test jacks are set；The test jack is n core wire 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 corresponding one are set
A contact open in usual；
One power supply is set；
1 to n-1 relay tip in the relay tip, lower end with 1 to n-1 cable under test core wire jack
It is connected respectively, 1 to n-1 relay tip upper end and the positive terminal of power supply connect；
N to n+2 relay tip in the relay tip, lower end with 2 to n cable under test core wire jack point
It is not correspondingly connected with, the upper end of n to n+2 relay tip and the negative pole end of power supply connect；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix, the resistance square are set
Battle array, is arranged in parallel respectively between each core wire jack of the second test jack；
The resistor matrix is made of a resistance and a diode concatenation；Wherein, the x core wire of cable under test,
By xth resistance, it is connect with the anode of xth diode, the cathode of xth diode, with (x+1)th cable under test core wire
Connection；X therein is the number of cable under test core wire, and value range is 1 to n, and n is the core number of cable under test；
One control unit is set, controls the " on " or "off" of each relay tip respectively, realizes electronics whereby
Switch on-off function；
Each port I/O of described control unit, is connected respectively, by control with the control coil of each relay
Coil output high level processed or low level, to control " logical " or " disconnected " of corresponding relay tip；
Control unit, power supply, relay group and first test jack is combined, forming member A, described
Resistor matrix, the second test jack combine, forming member B.
In actual work, it by the pre-fabricated electric cables plug for surveying cable ends, respectively corresponds insertion first and second and surveys
It tries in socket；
Control unit establishes the mapping relations of resistor matrix Yu pre-fabricated electric cables plug；
Control unit successively control respectively each relay contact carry out " logical ", it is " disconnected " act, and detect simultaneously it is each to
The resistance value between cable core circuit is surveyed, by controlling " logical ", " disconnected " action behavior of each relay contact, and is detected each
Thus the level change of a relay port judges the break-make situation between each two end of core wire first, last of cable under test；
Control unit screens the order of connection of each core wire of cable under test on pre-fabricated electric cables plug by diode, solves electricity
Cable interlocks wiring issue；
The automated intelligent line inspection device, it is prefabricated to check for the line inspection before the installation of intelligent substation pre-fabricated electric cables
Cables manufacturing quality；
The automated intelligent line inspection device, the line inspection of pre-fabricated electric cables, prefabricated to check before powering on for intelligent substation
The damage of cable installation process and misplaced.
Compared with the prior art, the invention has the advantages that
1. being directed to the large batch of pre-fabricated electric cables of substation, by the way of level measurement, cable under test and electricity are judged rapidly
The manufacturing quality of cable end, especially suitable for the line inspection before the installation of intelligent substation pre-fabricated electric cables；
2. screening the order of connection of each core of cable under test on pre-fabricated electric cables plug by diode, electricity can be effectively solved
Cable interlocks wiring issue；
3. entire test and line inspection process carry out automatically, working efficiency is greatly improved, manual operation error is avoided.
Detailed description of the invention
Fig. 1 is constituent system modules schematic diagram of the invention；
Fig. 2 is system principle schematic diagram of the 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.
Compared with traditional substation, the installation and debugging of intelligent substation embody it is simple, repeat, networking the characteristics of.With
For secondary cable installs the line inspection, the secondary cable of intelligent substation is pre-fabricated electric cables, is connect with two end of cable equal at equipment
Pre-fabricated electric cables socket is installed, when in-site installation is inserted directly into, and insertion process band is directional.So entire mistake
Journey is simple and has very high repeatability.
Although secondary cable installation process is simple, verification and traditional cable checking process to its correctness are consistent
, i.e. the necessary wiring of the every core of cable is correct, and open circuit, short circuit, misconnection situation cannot occur.This is required to intelligent substation secondary electricity
The cable line inspection proposes new challenge, can conclude that the following are at 3 points:
1) how to solve the problems, such as that high-volume pre-fabricated electric cables install the preceding line inspection?
2) is cable core sightless during how solving the problems, such as 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 is easy error?
The design of the technical program, exactly in order to solve the problems, such as three above.
In Fig. 1, the automated intelligent line inspection device (referred to as testing device, similarly hereinafter) of the technical program includes four core groups
Part.
Component one: PLC programmable controller.For executing testing device kernel program, established by control relay tip
With resistor matrix connection relationship.Meanwhile PLC borrows perception relay port level variation, by setup program to precognition cable on-off
Situation judges.What the line inspection results such as each core open circuit in two end of pre-fabricated electric cables, short circuit, wiring corresponding relationship can be carried in PLC
Liquid crystal display screen display.
Component two: relay group.For executing PLC instruction, pre-fabricated electric cables and resistor matrix are connected, mapping relations are established.
Component three: resistor matrix.By circuit board, resistance, the components such as diode composition.
Four: the first and second test jack of component.When for the line inspection, the corresponding insertion of the plug at two end of pre-fabricated electric cables is corresponded to
Test jack, establish electric loop connection.
Control unit, power supply, relay group and first test jack is combined, forming member A, described
Resistor matrix, the second test jack combine, forming member B, in this way, entire automated intelligent line inspection method is macroscopically
It is only made of two components, easy to carry and execute-in-place.
As shown in Fig. 1 it is found that in the technical program, a kind of automated intelligent line inspection device is provided, according to such as lower section
Method carries out the automatic line inspection:
The automated intelligent line inspection device, is provided with the first and second test jacks；The test jack is n core wire
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 corresponding one are set
A contact open in usual；
It is provided with a power supply；
1 to n-1 relay tip in the relay tip, lower end with 1 to n-1 cable under test core wire jack
It is connected respectively, 1 to n-1 relay tip upper end and the positive terminal of power supply connect；
N to n+2 relay tip in the relay tip, lower end with 2 to n cable under test core wire jack point
It is not correspondingly connected with, the upper end of n to n+2 relay tip and the negative pole end of power supply connect；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix, the resistance square are set
Battle array, is arranged in parallel respectively between each core wire jack of the second test jack；
The resistor matrix is made of a resistance and a diode concatenation；Wherein, the x core wire of cable under test,
By xth resistance, it is connect with the anode of xth diode, the cathode of xth diode, with (x+1)th cable under test core wire
Connection；X therein is the number of cable under test core wire, and value range is 1 to n, and n is the core number of cable under test；
It is provided with a control unit, controls the " on " or "off" of each relay tip respectively, realizes electricity whereby
The on-off function of sub switch；
Each port I/O of described control unit, is connected respectively, by control with the control coil of each relay
Coil output high level processed or low level, to control " logical " or " disconnected " of corresponding relay tip；
Control unit, power supply, relay group and first test jack is combined, forming member A, described
Resistor matrix, the second test jack combine, forming member B.
It in Fig. 2, gives by taking four core pre-fabricated electric cables plugs as an example, designed automated intelligent line inspection principle of device signal
Figure.
The design principle of testing device is mainly completed by establishing the mapping relations of resistor matrix and pre-fabricated electric cables plug.
Its designing points includes: to screen the order of connection of each core of pre-fabricated electric cables on pre-fabricated electric cables plug by diode,
Cable is solved to interlock wiring issue；Resistor matrix is connected by relay tip by pre-fabricated electric cables core number, passes through measure loop string
The resistance value of access judges on-off relationship between corresponding core and core；Testing device kernel program is write, relay is controlled by PLC
Device action behavior simultaneously experiences each relay port level variation, thus judges between each two end of core wire first and last of pre-fabricated electric cables
Break-make situation.
Specifically, the first and second test jacks of setting；The test jack is 4 core wire sockets；4 be cable under test
Core number；
6 relays are set, and corresponding one of each relay is often according to the core number 4 of cable under test in the first test jack
Open type contact (is indicated in figure with S1, S2, S3, S4, S5, S6)；
One power supply V1 is set；
The core wire jack point of S1 to S3 relay tip in the relay tip, lower end and 1 to No. 3 cable under test
It is not correspondingly connected with, the upper end of S1 to S3 relay tip and the positive terminal of power supply connect；
The core wire jack point of S2 to S6 relay tip in the relay tip, lower end and 2 to No. 4 cable under test
It is not correspondingly connected with, the upper end of S2 to S6 relay tip and the negative pole end of power supply connect；
3 resistor matrixes are set according to the core number 4 of cable under test in the second test jack, the resistor matrix divides
It is not arranged in parallel between each core wire of cable under test；
One control unit PLC is set, controls the " on " or "off" of each relay tip respectively, realizes electricity whereby
The on-off function of sub switch；
Resistor matrix is made of a resistance and a diode concatenation；Wherein, No. 1 core wire of cable under test, by the 1st
Number resistance is connect with the anode of No. 1 diode, and the cathode of No. 1 diode is connect with No. 2 cable under test core wire；Successively
Analogize, No. 3 core wires of cable under test, by No. 3 resistance, connect with the anode of No. 3 diode, No. 3 diode is born
Pole is connect with No. 4 cable under test core wire.
In conjunction with shown in Fig. 3, Fig. 4, line inspection implement body action behavior is indicated (by taking the quad line inspection as an example with following table example
It is illustrated):
When actual use operation, operating procedure is as shown in Figure 5.
Before checking wiring, then user need to be pressed at the end A of two end Jie the design of conducting wire and the end B by PLC screen prompt
Under " F1 " button, correcting line machine can be automatically performed school line, and correlated results is displayed on the screen, as a result about line short circuit feelings
Condition, line broken circuit situation and route mistake line situation, if the user desired that checking 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 is listed below in specific application advantage and its obviously:
Occasion one: the line inspection before intelligent substation pre-fabricated electric cables are installed is used to check pre-fabricated electric cables manufacturing quality.Testing device
It operates extremely simple, only requires that operator has line inspection basic knowledge.
Occasion two: the pre-fabricated electric cables line inspection before intelligent substation powers on.Be used 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 a pre-fabricated electric cables is not needed one minute,
Compared to even longer time normal cable line inspection a few minutes (if cable error needs to check), testing device line inspection efficiency is very high.
Work on the spot experience have shown that, all about 200-300 root pre-fabricated electric cables of a 110kV intelligent substation can be looked into half a day
It is complete, it is modified if necessary to supplier, then count subsequent review time in, whole work can be completed within one day.Compared in the past traditional 2
People 3-4 days working times, about raising efficiency 80%.
Since technical solution of the present invention 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 that cable under test corresponds to the on/off relationship between core and core；Operation
It is extremely simple, only require that operator has line inspection basic knowledge.
Technical solution of the present invention, advantage is extremely obvious under specific application, especially suitable for intelligent substation
The line inspection of the pre-fabricated electric cables before installation, laying, is used to check pre-fabricated electric cables manufacturing quality；And it is right before intelligent substation powers on
The line inspection of pre-fabricated electric cables is used 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, greatly improve line inspection efficiency.
Invention can be widely used in substation's testing lines device designs and manufactures field.
Claims (10)
1. a kind of automated intelligent line inspection method for intelligent substation, it is characterized in that the automated intelligent line inspection method, needle
To the prefabricated cable under test of intelligent substation, the quick line inspection is carried out with the following method and judges each core wire of cable under test prefabricated
Whether the order of connection on cable plug is correct:
One control unit, a power supply, a group relay and first test jack are set, component parts A is combined；
Wherein, the control unit controls the " on " or "off" of each relay tip respectively, realizes electronic cutting whereby
The on-off function of pass；
First test jack is n core wire socket；N is the core number of cable under test；
According to the core number n of cable under test, n+2 relay, the corresponding contact open in usual of each relay are set；
1 to n-1 relay tip in the relay tip, lower end with 1 to n-1 cable under test core wire jack distinguish
It is correspondingly connected with, 1 to n-1 relay tip upper end and the positive terminal of power supply connect；
N to n+2 relay tip in the relay tip, lower end with 2 to n cable under test core wire jack it is right respectively
It should connect, the upper end of n to n+2 relay tip and the negative pole end of power supply connect；
One resistor matrix and the second test jack are set, component parts B is combined；
Wherein, second test jack is n core wire socket；N is the core number of cable under test；
N-1 resistor matrix is arranged according to the core number n of cable under test in the resistor matrix, is arranged in parallel surveys second respectively
It tries between socket n core wire jack；
By the pre-fabricated electric cables plug at cable under test both ends, the first and second test jacks of insertion are respectively corresponded；
Control unit establishes the mapping relations of resistor matrix Yu pre-fabricated electric cables plug；
Control unit successively controls each relay contact respectively and carries out " logical ", " disconnected " movement, and detects each electricity to be measured simultaneously
Resistance value between cable core line loop；
Control unit detects each relay port by controlling " logical ", " disconnected " action behavior of each relay contact
Thus level change judges the break-make situation between each core wire in two end of cable under test；
Control unit screens the order of connection of each core wire of cable under test on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem.
2. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that the resistance
Matrix is made of a resistance and a diode concatenation；Wherein, the x core wire of cable under test, by xth resistance, with xth
The anode connection of number diode, the cathode of xth diode are connect with (x+1)th cable under test core wire；X therein is to be measured
The number of cable core, value range are 1 to n, and n is the core number of cable under test.
3. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that the control
Unit is single-chip microcontroller or PLC.
4. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that the control is single
Member each port I/O, be connected respectively with the control coil of each relay, by control coil export high level or
Low level, to control " logical " or " disconnected " of corresponding relay tip.
5. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that the control
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 that cable under test corresponds to the on/off relationship between core and core.
6. the automated intelligent line inspection method described in accordance with the claim 3 for intelligent substation, it is characterized in that in the 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 at two end of cable under test.
7. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that described is automatic
Intelligent line inspection method, for the line inspection before the installation of intelligent substation pre-fabricated electric cables, to check pre-fabricated electric cables manufacturing quality.
8. the automated intelligent line inspection method described in accordance with the claim 1 for intelligent substation, it is characterized in that described is used for
The automated intelligent line inspection method of intelligent substation, the line inspection of pre-fabricated electric cables before being powered on for intelligent substation, to check prefabricated electricity
The damage of cable installation process and misplaced.
9. a kind of automated intelligent line inspection device to work according to intelligence line inspection method described in claim 1, it is characterized in that:
First and second test jacks are set；The test jack is n core wire 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 is set, and corresponding one of each relay is often
Open type contact；
One power supply is set；
1 to n-1 relay tip in the relay tip, lower end with 1 to n-1 cable under test core wire jack distinguish
It is correspondingly connected with, 1 to n-1 relay tip upper end and the positive terminal of power supply connect；
N to n+2 relay tip in the relay tip, lower end with 2 to n cable under test core wire jack it is right respectively
It should connect, the upper end of n to n+2 relay tip and the negative pole end of power supply connect；
At the second test jack, according to the core number n of cable under test, n-1 resistor matrix is set, the resistor matrix divides
It is not arranged in parallel between each core wire jack of the second test jack；
The resistor matrix is made of a resistance and a diode concatenation；Wherein, the x core wire of cable under test passes through
Xth resistance, connect with the anode of xth diode, and the cathode of xth diode connects with (x+1)th cable under test core wire
It connects；X therein is the number of cable under test core wire, and value range is 1 to n, and n is the core number of cable under test；
One control unit is set, controls the " on " or "off" of each relay tip respectively, realizes electronic switch whereby
On-off function；
Each port I/O of described control unit, is connected respectively, by control line with the control coil of each relay
Circle output high level or low level, to control " logical " or " disconnected " that answers relay contact；
Control unit, power supply, relay group and first test jack is combined, forming member A, the electricity
Resistance matrix, the second test jack are combined, forming member B.
10. automated intelligent line inspection device according to claim 9, it is characterized in that by the prefabricated electricity for surveying cable ends
Cable plug respectively corresponds the first and second test jacks of insertion；
Control unit establishes the mapping relations of resistor matrix Yu pre-fabricated electric cables plug；
Control unit successively controls each relay contact respectively and carries out " logical ", " disconnected " movement, and detects each electricity to be measured simultaneously
Resistance value between cable core line loop, by controlling " logical ", " disconnected " action behavior of each relay contact, and detect it is each after
Thus the level change of electric appliance port judges the break-make situation between each two end of core wire first, last of cable under test；
Control unit screens the order of connection of each core wire of cable under test on pre-fabricated electric cables plug by diode, solves cable and hands over
Error connection problem；
The automated intelligent line inspection device, for the line inspection before the installation of intelligent substation pre-fabricated electric cables, to check pre-fabricated electric cables
Manufacturing quality；
The automated intelligent line inspection device, the line inspection of pre-fabricated electric cables before being powered on for intelligent substation, to check pre-fabricated electric cables
The damage of installation process and misplaced.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN108152650A (en) * | 2017-12-27 | 2018-06-12 | 上海应用技术大学 | The automatic line inspection system of multicore cable |
| CN108872770A (en) * | 2018-07-09 | 2018-11-23 | 国网重庆市电力公司电力科学研究院 | A kind of cable proofreader instrument and its to line method |
| CN110297158B (en) * | 2019-06-25 | 2021-11-09 | 四川九洲线缆有限责任公司 | Circuit verification method for three-core power line plug wire |
| CN113359065B (en) * | 2020-03-04 | 2022-08-30 | 佛山市云米电器科技有限公司 | Antenna testing method, device and computer readable storage medium |
| CN113359066B (en) * | 2020-03-04 | 2022-09-13 | 佛山市云米电器科技有限公司 | Antenna testing method, device and computer readable storage medium |
| CN111812478A (en) * | 2020-06-29 | 2020-10-23 | 格力电器（郑州）有限公司 | Device for selecting rectifier bridge diode during rectifier bridge detection and rectifier bridge detection system |
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