CN106771827A - A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation - Google Patents
A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation Download PDFInfo
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- CN106771827A CN106771827A CN201710206220.3A CN201710206220A CN106771827A CN 106771827 A CN106771827 A CN 106771827A CN 201710206220 A CN201710206220 A CN 201710206220A CN 106771827 A CN106771827 A CN 106771827A
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- school line
- main frame
- subtest
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- automatic school
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- 238000012360 testing method Methods 0.000 claims abstract description 35
- 238000004891 communication Methods 0.000 claims abstract description 31
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- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 6
- 102100039435 C-X-C motif chemokine 17 Human genes 0.000 claims description 6
- 101000889048 Homo sapiens C-X-C motif chemokine 17 Proteins 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 238000007689 inspection Methods 0.000 claims description 5
- 238000002955 isolation Methods 0.000 claims description 5
- 241000270722 Crocodylidae Species 0.000 claims description 4
- LNNWVNGFPYWNQE-GMIGKAJZSA-N desomorphine Chemical compound C1C2=CC=C(O)C3=C2[C@]24CCN(C)[C@H]1[C@@H]2CCC[C@@H]4O3 LNNWVNGFPYWNQE-GMIGKAJZSA-N 0.000 claims description 4
- 230000004224 protection Effects 0.000 abstract description 21
- 230000000116 mitigating effect Effects 0.000 abstract 1
- 238000010276 construction Methods 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 238000011161 development Methods 0.000 description 3
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Classifications
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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
- G01R31/58—Testing of lines, cables or conductors
-
- 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
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- General Physics & Mathematics (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The present invention relates to a kind of site the protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation, including automatic school line main frame, test cable and subtest head；Test cable with treat school cable terminal row's connection side and be connected, subtest head be connected with pre-fabricated electric cables connector, and main frame common port and subtest head common port are by connecting line or greatly connect and constitute test system；After the sequence of threads of host-initiated school, hard contact test signal is outputed successively, received hard contact is opened and is back to main frame by communication link into signal by subtest head, and main frame comprehensive descision surveys cable core connection and shows school knot really in liquid crystal display.The alternative machinery of the present invention, repeated artificial school line operation high, is remarkably improved the efficiency of school line, mitigating the workload of school informant person, while improving the quality of school line work.The method can be widely used in cable manufacturers In-Plant Test or site protection substation field debugging.
Description
Technical field
The present invention relates to testing field, more particularly to a kind of site protection transformer station automatic school line of single-ended pre-fabricated electric cables
Device and its implementation.
Background technology
At present, domestic a large amount of newly-built transformer stations use " routine transformer+combining unit " scheme, relay protection system to pass
Defeated link is more, and whole group actuation time more conventional protection 8-10ms long, protection " quick-action " is greatly reduced；Combining unit, intelligence are eventually
The common equipment fault rates such as end are high（For more than 2 times of GPF (General Protection False）, it is incorrect dynamic that single equipment failure often results in many set protections
Make, " reliability " of relay protection cannot be ensured.Transmission link is reduced, main protection and switch control directly adopt straight using cable
Jump, secondary device site is mounted for the new development trend of relay protection.Site secondary device external connection is used
AN connector, external cabling is connected using single-ended pre-fabricated electric cables, to realize replaceable maintenance.
The inspection work of substation cable wiring is the important step in debugging process, is the work for taking time and effort,
Frequently with the method for artificial school line.Artificial school line needs to use intercom（Phone）, universal meter（School line lamp）Deng instrument, at least need
2 people are wanted to participate in, it is error-prone and efficiency is low.How efficiently, school line work is completed rapidly and accurately, field adjustable construction is improved
Efficiency, mitigates the workload of commissioning staff, while the debugging quality of electrical secondary system is improved, as problem in the urgent need to address.
Site protection transformer station largely uses single-ended pre-fabricated electric cables, and huge challenge is brought to debugging efforts.It is suitable
Answer site to protect the development trend of transformer station, improve the automaticity of construction, it is necessary to protect transformer station to site
Single-ended pre-fabricated electric cables research and develop a kind of automatic school line apparatus.The use of single-ended pre-fabricated electric cables AN connector, also for realize school line from
Dynamicization is provided may.
The content of the invention
In view of this, it is traditional thread binding it is an object of the invention to provide a kind of automatic school of site protection single-ended pre-fabricated electric cables of transformer station
Put and its implementation, be used to improve the efficiency of field adjustable construction, mitigate the workload of commissioning staff, while improving secondary system
The debugging quality of system.
The present invention is realized using following scheme：A kind of site protection transformer station automatic school line apparatus of single-ended pre-fabricated electric cables,
Configure automatic school line main frame, test cable and subtest head；
The automatic school line main frame is configured with a controller, the n roads amount of outputing circuit and a LCDs, and n is cable under test core
Number；
The test cable is a test output cable for n+1 cores, the connection main frame n road amount of outputing signals and to output signal public
End, the signal common port of outputing is connected with controller reference ground GND, each core outer end connecting contact pin or crocodile clip；
The subtest head is using circular pre-fabricated electric cables connector, there is provided m jack, it puts in order single-ended prefabricated with to be measured
Cable connector is consistent, and with Anti-misplug function；Its internal Configuration Control Unit, m jack is accessed by photoelectric isolation module
Controller switches amount input terminal；Its wiring common port of exterior arrangement one, the common port is connected with controller reference ground GND, its
Middle m≤n;
By the test cable with treat school pre-fabricated electric cables terminal row wiring side and be connected, the subtest head with treat school pre-fabricated electric cables
Connector is connected, and the common port of the automatic school line main frame is connected by connecting line with the common port of the subtest head with the earth
Connect；The automatic school line main frame is set up by communication link with the communication com port of the subtest head and is connected；
The built-in automatic school sequence of threads of controller of the automatic school line main frame, after test program starts, the automatic school line main frame
Hard contact test signal is outputed successively, and received hard contact is opened and is back to institute by communication link into signal by subtest head
Automatic school line main frame is stated, the automatic school line main frame is sentenced by the information that contrast is outputed received by contact information and communication link
It is disconnected to survey cable core wiring condition, and in liquid crystal display display school knot really.
Further, the automatic school line main frame sets working power VCC1.
Further, the subtest head sets working power VCC2.
Further, the controller of the automatic school line main frame or subtest head is single-chip microcomputer, DSP or PLC.
Further, the communication link is ethernet communication, serial communication or radio communication.
Further, the upper end of the n roads amount of outputing of the automatic school line main frame passes through resistance Rs1It is connected with power supply VCC1, respectively
The connection corresponding with n roads test cable of the lower end of the road amount of outputing.
Further, the positive input terminal of each photoelectric isolation module of subtest head is connected with corresponding jack, negative input
End is connected with the controller reference ground GND of subtest head；The upper end of output quantity passes through resistance Rs2It is connected with power supply VCC2, respectively
The intake DI terminals connection corresponding with controller of the lower end of output quantity.
Further, the jack number m of the subtest head is selected according to the pre-fabricated electric cables model tested, m's
Typical number is 12,16,18,21.
Further, the automatic school line apparatus of the single-ended pre-fabricated electric cables can be used for cable manufacturers In-Plant Test or site
Protection substation field debugging.
In the present invention, the implementation method of the described site protection transformer station automatic school line apparatus of single-ended pre-fabricated electric cables,
Comprise the following steps：
Step S1：Equipment self-inspection, the automatic school line main frame are carried out after the automatic school line main frame and electricity on the subtest
The subtest head sets up communication connection, into the ready stage；
Step S2：Before school line starts, set cable under test core number m, the automatic school line main frame according to 1 to m order by
The one closure amount of outputing, sends school line signal and gives subtest head；
Step S3：The automatic school line main frame receives subtest head return path signal by communication link, if not receiving signal,
Then judge core broken string；If received signal is not unique, judge that the core has short circuit phenomenon with other cores；If returning
The signal of biography and the school line sequence number for being sent are inconsistent, then judge that core has crossover phenomenon；Only receive unique passback
Signal, and it is consistent with sent out school line needs, just judge that the core wiring is correct；
Step S4：The automatic school line main frame shows school knot really in liquid crystal display.
Compared to prior art, the invention has the advantages that：
1）The scheme of controller is designed, be separately configured using main frame and the split of subtest head, effectively increases the accurate of school line
Property, also reduce the development difficulty of school sequence of threads.
2）Subtest head is individually designed, connector model can unrestricted choice, improve automatic school line apparatus in site
Protect the versatility and applicability of transformer station；Connector uses standard model, possesses mistake proofing plugging function, and effectively relatively low operation is lost
Probability by mistake.
3）School line process uses single loop checking method, simulates artificial school line, can completely examine cable core broken string, short
Situations such as road, intersection, knot fruit in school is relatively reliable.
4）Single-ended pre-fabricated electric cables are realized with full-automatic school line, the operating efficiency of school line is improve, save human and material resources into
This, to cost efficiency effect is significant.
5）School line process is completed by device completely, reduces the debugging problem that human operational error brings, debugging efforts matter
Measure effectively lifting.
Brief description of the drawings
Fig. 1 is main frame of the invention and subtest head connection circuit figure.
Fig. 2 is the automatic school line flow chart of main frame of the invention.
Fig. 3 is the automatic school line flow chart of subtest head of the invention.
Specific embodiment
Below in conjunction with the accompanying drawings and embodiment the present invention will be further described.
Site protection transformer station largely connects site protection equipment and wiring terminal box using single-ended pre-fabricated electric cables, single
Easily there is situations such as wrong line, broken string, short circuit, it is necessary to the wiring feelings of its core in production, installation process in end pre-fabricated electric cables
Condition is proofreaded comprehensively.Single-ended pre-fabricated electric cables use AN connector, are made troubles to artificial school line, in addition single-ended pre-fabricated electric cables
Substantial amounts, it is larger that scene is rapidly completed cable checking work difficulty.
As shown in figure 1, the present embodiment provides a kind of site protection transformer station automatic school line apparatus of single-ended pre-fabricated electric cables, match somebody with somebody
Put automatic school line main frame, test cable and subtest head；
Automatic school line main frame Configuration Control Unit, the n roads amount of outputing circuit and a LCDs, n is cable under test core number；
Test cable is a test output cable for n+1 cores, connects the main frame n road amount of outputing signals and outputs signal common port
（It is connected with controller reference ground GND）, each core outer end can connecting contact pin or crocodile clip；
Subtest head is using circular pre-fabricated electric cables connector, there is provided m（m≤n）Individual jack, it puts in order single-ended pre- with to be measured
Cable connector processed is consistent, and with Anti-misplug function；Its internal Configuration Control Unit, each jack（M）By Phototube Coupling mould
Block（OP）Access controller On-off signal terminal；Its wiring common port of exterior arrangement one, the common port and controller reference ground
GND is connected；
By automatic school line apparatus test cable with treat school pre-fabricated electric cables terminal row wiring side and be connected, subtest head and pre-fabricated electric cables
Connector is connected, and automatic school line main frame common port and subtest head common port are connected by connecting line or the earth；Main frame with it is auxiliary
Measuring head is helped to communicate com port by communication link foundation connection；
The built-in automatic school sequence of threads of console controller, after test program starts, it outputs hard contact test signal successively, and auxiliary is surveyed
Received hard contact is opened and is back to main frame by communication link into signal by examination head, main frame by contrast output contact information and
Information received by communication link judges to survey cable core wiring condition, and in liquid crystal display display school knot really.
In the present embodiment, specifically, main frame sets working power VCC1, subtest head sets working power VCC2,
Main frame or subtest head controller are single-chip microcomputer, DSP or PLC.
In the present embodiment, communication link is ethernet communication, serial communication or radio communication.
In the present embodiment, the upper end of the main frame n roads amount of outputing passes through resistance Rs1It is connected with power supply VCC1, each road amount of outputing
Lower end connection corresponding with n roads test cable.
In the present embodiment, each photoelectric isolation module of subtest head（OP）Input "+" end connected with corresponding jack, it is defeated
Enter "-" end to be connected with the controller reference ground GND of subtest head；The upper end of output quantity is by resistance Rs2 and power supply VCC2
Connection, the lower end intake DI terminals connection corresponding with controller of each output quantity.
In the present embodiment, subtest head jack number m can be selected according to the pre-fabricated electric cables model tested, m's
Typical number is 12,16,18,21.
In the present embodiment, the automatic school line apparatus of single-ended pre-fabricated electric cables, can be used for cable manufacturers In-Plant Test or on the spot
Change protection substation field debugging.
In the present embodiment, on the main frame after electricity it is its automatic school line flow such as Fig. 2 institute automatically into working condition
Show.On main frame after electricity, the self-inspection of equipment is completed first, then need to set up communication connection with subtest head, just enter afterwards
The ready stage., it is necessary to set the core number m of cable under test, after starting manually, main frame is according to the suitable of 1 ~ m before school line starts
Sequence closes the amount of outputing one by one, sends school line signal and gives subtest head.Afterwards, main frame receives subtest head by communication link
Return path signal, if not receiving signal, illustrates that core breaks；If received signal is not unique, show the core and its
There is short circuit phenomenon by core in him；If the signal of passback and the school line sequence number for being sent are inconsistent, illustrate that core is present and intersect now
As；Unique return path signal is only received, and it is consistent with sent out school line needs, just judge that the core wiring is correct.
In the present embodiment, it is that its automatic school line flow is such as automatically into working condition after electricity on the subtest head
Shown in Fig. 3.On subtest head after electricity, the self-inspection of equipment is completed first, then need to set up communication connection, Zhi Houbian with main frame
Into the ready stage.Afterwards, subtest head real-time detection intake, and intake information is back to main frame in real time.
During practical operation, firstly the need of line is carried out, its step is included user：1）By test cable according to sequence number contact pin
Or crocodile clip is connected to the terminal block side of pre-fabricated electric cables to be measured；2）Selection is adapted to the subtest head of cable under test and inserts to be measured
Pre-fabricated electric cables connector；3）Main frame common port and subtest head common port are connect by connecting line or by the two common port
Ground.Secondly, user needs setting to survey the core number m of cable.Finally, manually boot and start school line order, automatic school line apparatus will be from
It is dynamic to complete school line and show result.
The school line for carrying out pre-fabricated electric cables using this automatic school line apparatus works, can be by people's complete independently；Whole school line consumption
When be mainly school line apparatus setting up time, and after starting school sequence of threads, automatic school line process can be completed in 1 second.Compared to artificial
School line at least needs 2 people to complete, and its operating efficiency at least improves 50%；In the more occasion of core number, its advantage is more obvious.
This automatic school alternative artificial operation of line apparatus, school line work that be automatically performed machinery, that repeatability is high, can be significantly
The efficiency of field adjustable construction is improved, mitigates the workload of commissioning staff, while improving school line mass.
This automatic school line apparatus can be used for cable manufacturers In-Plant Test or site protection substation field debugging.
The foregoing is only presently preferred embodiments of the present invention, all impartial changes done according to scope of the present invention patent with
Modification, should all belong to covering scope of the invention.
Claims (9)
1. a kind of site protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, it is characterised in that：
Configure automatic school line main frame, test cable and subtest head；
The automatic school line main frame is configured with a controller, the n roads amount of outputing circuit and a LCDs, and n is cable under test core
Number；
The test cable is a test output cable for n+1 cores, the connection main frame n road amount of outputing signals and to output signal public
End, the signal common port of outputing is connected with controller reference ground GND, each core outer end connecting contact pin or crocodile clip；
The subtest head is using circular pre-fabricated electric cables connector, there is provided m jack, it puts in order single-ended prefabricated with to be measured
Cable connector is consistent, and with Anti-misplug function；Its internal Configuration Control Unit, m jack is accessed by photoelectric isolation module
Controller switches amount input terminal；Its wiring common port of exterior arrangement one, the common port is connected with controller reference ground GND, its
Middle m≤n；
By the test cable with treat school pre-fabricated electric cables terminal row wiring side and be connected, the subtest head with treat school pre-fabricated electric cables
Connector is connected, and the common port of the automatic school line main frame is connected by connecting line with the common port of the subtest head with the earth
Connect；The automatic school line main frame is set up by communication link with the communication com port of the subtest head and is connected；
The built-in automatic school sequence of threads of controller of the automatic school line main frame, after test program starts, the automatic school line main frame
Hard contact test signal is outputed successively, and received hard contact is opened and is back to institute by communication link into signal by subtest head
Automatic school line main frame is stated, the automatic school line main frame is sentenced by the information that contrast is outputed received by contact information and communication link
It is disconnected to survey cable core wiring condition, and in liquid crystal display display school knot really.
2. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The automatic school line main frame sets working power VCC1.
3. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The subtest head sets working power VCC2.
4. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The controller of the automatic school line main frame or subtest head is single-chip microcomputer, DSP or PLC.
5. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The communication link is ethernet communication, serial communication or radio communication.
6. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The upper end of the n roads amount of outputing of the automatic school line main frame passes through resistance Rs1It is connected with power supply VCC1, under each road amount of outputing
End connection corresponding with n roads test cable.
7. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The positive input terminal of each photoelectric isolation module of subtest head is connected with corresponding jack, and negative input end is surveyed with auxiliary
Try the controller reference ground GND connections of head；The upper end of output quantity passes through resistance Rs2It is connected with power supply VCC2, the lower end of each output quantity
Intake DI terminals connection corresponding with controller.
8. a kind of site according to claim 1 protects transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables, its feature
It is：The jack number m of the subtest head is selected according to the pre-fabricated electric cables model tested, the typical number of m is 12,
16、18、21。
9. a kind of site according to claim 1 protects the realization side of transformer station's automatic school line apparatus of single-ended pre-fabricated electric cables
Method, it is characterised in that：Comprise the following steps：
Step S1：Equipment self-inspection, the automatic school line main frame are carried out after the automatic school line main frame and electricity on the subtest
The subtest head sets up communication connection, into the ready stage；
Step S2：Before school line starts, set cable under test core number m, the automatic school line main frame according to 1 to m order by
The one closure amount of outputing, sends school line signal and gives subtest head；
Step S3：The automatic school line main frame receives subtest head return path signal by communication link, if not receiving signal,
Then judge core broken string；If received signal is not unique, judge that the core has short circuit phenomenon with other cores；If returning
The signal of biography and the school line sequence number for being sent are inconsistent, then judge that core has crossover phenomenon；Only receive unique passback
Signal, and it is consistent with sent out school line needs, just judge that the core wiring is correct；
Step S4：The automatic school line main frame shows school knot really in liquid crystal display.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206220.3A CN106771827A (en) | 2017-03-31 | 2017-03-31 | A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710206220.3A CN106771827A (en) | 2017-03-31 | 2017-03-31 | A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation |
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| CN106771827A true CN106771827A (en) | 2017-05-31 |
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| CN201710206220.3A Pending CN106771827A (en) | 2017-03-31 | 2017-03-31 | A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation |
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Cited By (7)
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| CN107290632A (en) * | 2017-07-31 | 2017-10-24 | 崔旭涛 | A kind of portable aviation cable fault test system |
| CN108362972A (en) * | 2018-05-10 | 2018-08-03 | 西安热工研究院有限公司 | A kind of electrical equipment manual-automatic integrated school line system and method |
| CN108445348A (en) * | 2018-06-22 | 2018-08-24 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of electrical cable intelligent school line apparatus |
| CN109357841A (en) * | 2018-10-19 | 2019-02-19 | 国网辽宁省电力有限公司电力科学研究院 | Site protects prefabricated optical cable calibration equipment |
| CN111198338A (en) * | 2019-12-24 | 2020-05-26 | 河南平高电气股份有限公司 | Plug connector pin sequence number identification method and system, host and slave |
| US10841118B2 (en) | 2016-11-09 | 2020-11-17 | Sercomm Corporation | Automatic pairing method and server |
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| CN108362972A (en) * | 2018-05-10 | 2018-08-03 | 西安热工研究院有限公司 | A kind of electrical equipment manual-automatic integrated school line system and method |
| CN108445348A (en) * | 2018-06-22 | 2018-08-24 | 国网辽宁省电力有限公司沈阳供电公司 | A kind of electrical cable intelligent school line apparatus |
| CN109357841A (en) * | 2018-10-19 | 2019-02-19 | 国网辽宁省电力有限公司电力科学研究院 | Site protects prefabricated optical cable calibration equipment |
| CN109357841B (en) * | 2018-10-19 | 2024-02-13 | 国网辽宁省电力有限公司电力科学研究院 | On-site protection prefabricated optical cable checking device |
| CN111198338A (en) * | 2019-12-24 | 2020-05-26 | 河南平高电气股份有限公司 | Plug connector pin sequence number identification method and system, host and slave |
| CN111198338B (en) * | 2019-12-24 | 2022-09-06 | 河南平高电气股份有限公司 | Plug connector pin sequence number identification method and system, host and slave |
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