CN206638763U - A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station - Google Patents
A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station Download PDFInfo
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- CN206638763U CN206638763U CN201720330945.9U CN201720330945U CN206638763U CN 206638763 U CN206638763 U CN 206638763U CN 201720330945 U CN201720330945 U CN 201720330945U CN 206638763 U CN206638763 U CN 206638763U
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Abstract
The utility model is related to a kind of automatic school line apparatus of the single-ended pre-fabricated electric cables of site protection transformer station and, including automatic school line main frame, test cable and subtest head；With treating that school cable terminal row's connection side is connected, subtest head is connected test cable with pre-fabricated electric cables connector, and main frame common port and subtest head common port pass through connecting line or the earth connection composition test system.The alternative artificial school line operation mechanical, repeatability is high of the utility model, is remarkably improved the efficiency of school line, mitigates the workload of school informant person, while improve the quality of school line work.The utility model can be widely used for cable manufacturers In-Plant Test or site protection substation field debugging.
Description
Technical field
Testing field is the utility model is related to, protects the single-ended pre-fabricated electric cables of transformer station automatic more particularly to a kind of site
School line apparatus.
Background technology
At present, domestic a large amount of newly-built transformer stations use " routine transformer+combining unit " scheme, and relay protection system passes
Defeated link is more, and the whole group actuation time more conventional long 8-10ms of protection, 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 more set protections
Make, " reliability " of relay protection cannot ensure.Transmission link is reduced, main protection and switch control are directly adopted directly using cable
Jump, secondary device site is mounted for the new development trend of relay protection.Site secondary device external connection uses
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 taken 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, error-prone and efficiency is low.How efficiently, school line work is completed rapidly and accurately, improves field adjustable construction
Efficiency, mitigates the workload of commissioning staff, while improves the debugging quality of electrical secondary system, turns into the problem of 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.To be suitable
The development trend of site protection transformer station is answered, improves the automaticity of construction, it is necessary to protect transformer station to site
A kind of single-ended automatic school line apparatus of pre-fabricated electric cables research and development.The use of single-ended pre-fabricated electric cables AN connector, also for realize school line from
Dynamicization provides possibility.
The content of the invention
In view of this, the purpose of this utility model is to provide a kind of automatic school of the site protection single-ended pre-fabricated electric cables of transformer station
Line apparatus and its implementation, to improve the efficiency of field adjustable construction, mitigate the workload of commissioning staff, while improve two
The debugging quality of subsystem.
The utility model is realized using following scheme：A kind of automatic school of the site protection single-ended pre-fabricated electric cables of transformer station is traditional thread binding
Put, 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 electricity to be measured
Cable core number；
The test cable is the test output cable of a n+1 core, connects the main frame n road amount of outputing signals and outputs signal
Common port, the signal common port of outputing are connected with controller reference ground GND, each core outer end connecting contact pin or crocodile clip；
The subtest head uses circular pre-fabricated electric cables connector, there is provided m jack, its put in order with it is to be measured single-ended
Pre-fabricated electric cables connector is consistent, and has Anti-misplug function；Its internal Configuration Control Unit, m jack pass through photoelectric isolation module
Access controller On-off signal terminal；Its wiring common port of exterior arrangement one, the common port and controller reference ground GND phases
Even, wherein m≤n;
The test cable is with treating that school pre-fabricated electric cables terminal row wiring side is connected, and the subtest head is with treating the prefabricated electricity in school
Cable connector connects, and the common port of the common port and the subtest head of the automatic school line main frame passes through connecting line and the earth
Connection；The communication com port of the automatic school line main frame and the subtest head is established by communication link to be connected；
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 connects 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
Protect substation field debugging.
Compared to prior art, the utility model has the advantages that：
1）Using main frame and subtest head split design, the scheme that controller is separately configured, school line is effectively increased
Accuracy, 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 and break, be short
Situations such as road, intersection, school knot fruit is relatively reliable.
4）Single-ended pre-fabricated electric cables are realized with full-automatic school line, improves the operating efficiency of school line, save human and material resources into
This, to cost efficiency significant effect.
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 and subtest head connection circuit figure of the present utility model.
Fig. 2 is the automatic school line flow chart of main frame of the present utility model.
Fig. 3 is the automatic school line flow chart of subtest head of the present utility model.
Embodiment
Below in conjunction with the accompanying drawings and embodiment is described further to the utility model.
Site protection transformer station is single largely using single-ended pre-fabricated electric cables connection site protection equipment and wiring terminal box
End pre-fabricated electric cables in production, easily there is situations such as wrong line, broken string, short circuit in installation process, it is necessary to wiring feelings to its core
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 automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station, 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 are cable under test core number；
Test cable is the test output cable of n+1 core, the connection main frame n road amount of outputing signals and to output signal public
End（It is connected with controller reference ground GND）, each core outer end can connecting contact pin or crocodile clip；
Subtest head uses circular pre-fabricated electric cables connector, there is provided m（m≤n）Individual jack, it puts in order and list to be measured
Hold pre-fabricated electric cables connector consistent, and there is Anti-misplug function；Its internal Configuration Control Unit, each jack（M）By photoelectricity every
From module（OP）Access controller On-off signal terminal；Its wiring common port of exterior arrangement one, the common port are joined with controller
Ground GND is examined to be connected；
By automatic school line apparatus test cable with treating that school pre-fabricated electric cables terminal row wiring side is connected, subtest head with it is prefabricated
Cable 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
The com port that communicated with subtest head is established by communication link to be connected；
Console controller outputs hard contact test signal successively, and subtest head opens received hard contact to be led into signal
Cross communication link and be back to main frame, the information that main frame is outputed by contrast received by contact information and communication link judges to be surveyed
Cable core wiring condition, and show school knot fruit in liquid crystal display.
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 passes through 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, available for cable manufacturers In-Plant Test or on the spot
Change protection substation field debugging.
In the present embodiment, it is automatically into working condition, its automatic school line flow such as Fig. 2 institute after electricity on the main frame
Show.On main frame after electricity, the self-test of equipment is completed first, is then needed to establish communication connection with subtest head, is just entered afterwards
The ready stage., it is necessary to set the core number m of cable under test before in school, line starts, after starting manually, main frame is according to the suitable of 1 ~ m
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, illustrate that core breaks；If received signal is not unique, show the core and its
Short circuit phenomenon be present by core in him；If the signal of passback and the school line sequence number 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-test of equipment is completed first, then needs to establish communication connection, Zhi Houbian with main frame
Into the ready stage.Afterwards, subtest head detects intake in real time, and intake information is back into main frame in real time.
During practical operation, user includes firstly the need of line, its step is carried out：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 inserted 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 to set the core number m for surveying cable.Finally, manually boot and start school line order, automatic school line apparatus will be certainly
It is dynamic to complete school line and show result.
Carry out the school line work of pre-fabricated electric cables using this automatic school line apparatus, 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%；It is more obvious in the more occasion of core number, its advantage.
This alternative manual operation of automatic school 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 improve 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 preferred embodiment of the present utility model, it is all done according to present utility model application the scope of the claims it is equal
Deng change and modification, it should all belong to covering scope of the present utility model.
Claims (8)
1. a kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station, 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 the test output cable of n+1 core, the connection main frame n road amount of outputing signals and to output signal public
End, the signal common port of outputing are connected with controller reference ground GND, each core outer end connecting contact pin or crocodile clip；
The subtest head uses circular pre-fabricated electric cables connector, there is provided m jack, its put in order with it is to be measured single-ended prefabricated
Cable connector is consistent, and has Anti-misplug function；Its internal Configuration Control Unit, m jack are accessed by photoelectric isolation module
Controller switches amount input terminal；Its wiring common port of exterior arrangement one, the common port are connected with controller reference ground GND, its
Middle m≤n；
The test cable is with treating that school pre-fabricated electric cables terminal row wiring side is connected, and the subtest head is with treating that school pre-fabricated electric cables connect
Device connection is connect, the common port of the common port and the subtest head of the automatic school line main frame is connected by connecting line and the earth
Connect；The communication com port of the automatic school line main frame and the subtest head is established by communication link to be connected.
2. a kind of site protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, its feature
It is：The automatic school line main frame sets working power VCC1.
3. a kind of site protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, its feature
It is：The subtest head sets working power VCC2.
4. a kind of site protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, 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 protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, its feature
It is：The communication link is ethernet communication, serial communication or radio communication.
6. a kind of site protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, 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 protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, 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 protection automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station according to claim 1, its feature
It is：The jack number m of the subtest head is selected according to the pre-fabricated electric cables model tested, m typical number is 12,
16、18、21。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720330945.9U CN206638763U (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 |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720330945.9U CN206638763U (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 |
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| CN206638763U true CN206638763U (en) | 2017-11-14 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964264A (en) * | 2018-06-22 | 2018-12-07 | 国电南瑞科技股份有限公司 | The wireless realization of debugging method of intelligent substation site device |
-
2017
- 2017-03-31 CN CN201720330945.9U patent/CN206638763U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108964264A (en) * | 2018-06-22 | 2018-12-07 | 国电南瑞科技股份有限公司 | The wireless realization of debugging method of intelligent substation site device |
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Effective date of registration: 20171211 Address after: 350003 Gulou District, Fujian, Fuzhou No. 54 Road, No. 257 Co-patentee after: State Grid Corporation of China Patentee after: State Grid Fujian Electric Power Co., Ltd. Co-patentee after: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. Co-patentee after: Economic technology academy of State Grid Fujian Electric Power Co., Ltd. Address before: 350003 Fuzhou Road, Fujian, No. 54, No. 257 Co-patentee before: State Grid Corporation of China Patentee before: State Grid Fujian Electric Power Co., Ltd. Co-patentee before: Electric Power Research Institute, State Grid Fujian Electric Power Co., Ltd. |