CN205539298U - Swift formula secondary cable circuit school line appearance - Google Patents
Swift formula secondary cable circuit school line appearance Download PDFInfo
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- CN205539298U CN205539298U CN201620089724.2U CN201620089724U CN205539298U CN 205539298 U CN205539298 U CN 205539298U CN 201620089724 U CN201620089724 U CN 201620089724U CN 205539298 U CN205539298 U CN 205539298U
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- 238000012360 testing method Methods 0.000 claims abstract description 15
- 230000001681 protective effect Effects 0.000 claims description 16
- 238000007689 inspection Methods 0.000 claims description 6
- 238000010276 construction Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- 230000009466 transformation Effects 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
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- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The utility model discloses a swift formula secondary cable circuit school line appearance, it belongs to check -up equipment field, and it includes A terminal and B terminal, and A terminal and B terminal are connected respectively at the both ends of being surveyed the secondary circuit cable, the A terminal includes with voltage source DC1 and the parallelly connected controlling brancher of n strip, n strip the control branch road connects after being parallelly connected with voltage source DC1's positive pole, its minus earth, the termination pressurization power DC1's of every control branch road positive pole is equipped with the binding clip ja who is arranged in connecting arbitrary core on the quilt survey secondary circuit cable on its other end, the B terminal includes the parallelly connected instruction branch road of n strip, and the instruction branch road structure that the n strip connected in parallel is the same, and every instruction branch road includes all that B end pilot lamp lb and the B who establishes ties with it correct to diode db, the one end ground connection of every instruction branch road is equipped with the binding clip jb who is arranged in connecting arbitrary core on the quilt survey secondary circuit cable on its other end. The utility model has the advantages that portable, easy operation and test result accuracy are directly perceived.
Description
Technical field
The utility model belongs to calibration equipment field, is specifically related to a kind of fast-type secondary cable loop wire.
Background technology
In relay protection specialty capital construction examination, overhaul technological transformation and maintenance performulation, it is not only modal work that secondary cable is laid with replacing.More because the correctness in secondary cable loop has conclusive effect for correctly working of protective relaying device, secondary cable school lineman is again particularly important work.
Common secondary circuit school the Line tool is a universal meter, a cable, this school line mode needs wiring for several times, every wiring is once, can be only done the verification in a loop, wiring is relatively complicated, and school lineman needs not only to find correct loop, more to determine do not have short circuit connection between each loop, school linear velocity is slower；Common capital construction is checked and accepted school line need of work and is completed for 2-3 hour, and the school line time is longer；And need two people to coordinate, inefficiency.
Utility model content
Technical problem to be solved in the utility model be to provide a kind of be easy to carry, the fast-type secondary cable loop wire that simple to operate and result of the test is accurate and visual.
For solving the problems referred to above, technical solution adopted in the utility model is:
A kind of fast-type secondary cable loop wire, it is adaptable to power system secondary professional production is on-the-spot, capital construction is on-the-spot and the training and teaching work of real training, it is intended to improve operating efficiency and accuracy that secondary cable loop school lineman makees.Its key technology is: it includes that A terminal and B terminal, described A terminal and B terminal are connected to the two ends of tested secondary circuit cable；Described A terminal includes adding voltage source DC1 and n bar controlling brancher in parallel, controlling brancher parallel connection described in n bar be followed by described in add the positive pole of voltage source DC1, its minus earth；The described controlling brancher structure of n bar parallel connection is identical, and every described controlling brancher all includes A end indicator lamp La, A end forward diode DaWith switch Ka, A end indicator lamp L on every described controlling brancheraWith A end forward diode DaThe switch K of correspondence is connected after series connectiona；
Adding the positive pole of voltage source DC1 described in one termination of every described controlling brancher, the other end of every described controlling brancher is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cablea；
Described B terminal includes the instruction branch road that n bar is in parallel, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road all includes B end indicator lamp LbWith B end forward diode D connected in seriesb；
One end ground connection of every described instruction branch road, the other end of every described instruction branch road is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cableb；
Described binding clip JaWith binding clip JbIt is connected with the two ends of any bar core in the n bar core of tested secondary circuit cable respectively；Described n is the quantity of tested secondary circuit cable SMIS.
Further, described A terminal also includes that power control switch K, described power control switch K are in series with described voltage source DC1 that adds.
Further, described A terminal also includes A end alarm SPa, described A end alarm SPaIt is in series with described voltage source DC1 that adds.
Further, described A terminal also includes protective resistance Ra, described protective resistance RaIt is in series with described voltage source DC1 that adds.
Further, described A terminal also includes A end self-test switch Ka, A end indicator lamp L in every described controlling brancheraWith A end forward diode DaThrough described A end self-test switch K after series connectionaGround connection.
Further, described B terminal also includes alarm SPb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described A end alarm SP after series connectionbGround connection.
Further, described B terminal also includes protective resistance Rb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described protective resistance R after series connectionbGround connection.
Further, described B terminal also includes that B end self-checking circuit, described B end self-checking circuit include diode Db, B end self-test switch KbWith self-inspection power supply DC2, the positive pole of described self-inspection power supply DC2 is successively through B end self-test switch KbWith diode DbAccess the binding clip J of every described instruction branch roadb。
Use and have the beneficial effects that produced by technique scheme:
The utility model uses forward-, series diode in each bar controlling brancher and instruction branch road, it is ensured that the one-way conduction of electric current, it is ensured that experimental safe；The core of tested secondary circuit cable is coupled with between two terminals of wire by school lineman author, i.e. between A terminal and B terminal, by controlling the core two end loop pressurization switching K to tested secondary circuit cable successively, and every corresponding indicator lamp L of coreaAnd Lb, contribute to all being able to observe that the situation of break-make at distant tested secondary circuit cable two ends, i.e. by the indicator lamp L on wireaAnd Lb, the core two end loop conducting of the bright tested secondary circuit cable representing its correspondence of which indicator lamp, it is same core；Other indicator lamps go out, and to represent core two end loop of tested secondary circuit cable of correspondence obstructed so that school line result accurately, directly perceived, facilitate the school lineman author of two terminals of A, B can simultaneously view school line result, it is not necessary to additional communication.
The utility model will add voltage source DC1, protective resistance Ra, the in parallel controlling brancher of power control switch K, n bar and n bar instruction branch road in parallel be integrated in one, the universal meter used when substituting original school line, there is being easy to carry, show feature clear, simple to operate.
Whether the utility model, without censorship, only need to be made regular check on each indicator lamp can be proper use of, maintenance cost saving.
The utility model in use adds voltage source DC1 and can be composed in series by No. 1 battery, and goes here and there protected resistance Ra, there is power control switch K simultaneously, safety coefficient is higher, will not cause damage grid equipment, is in like manner applicable to protective resistance R of B terminalb, it is ensured that the safe handling of this wire, protective resistance RaAnd RbDiode and whole wire can be played safeguard protection effect.
The utility model is also provided with alarm SP in B terminalb, when tested secondary circuit cable is longer so that B end also can recognize the situation of break-make simultaneously so that A terminal and B terminal synchronize break-make situation.
The utility model is provided with A end self-test switch K in A terminal and B terminal the most respectivelyaWith B end self-checking circuit, normally use for guarantee equipment and provide self-checking function, convenient use, enhance practicality.
Accompanying drawing explanation
In order to be illustrated more clearly that the utility model detailed description of the invention or technical scheme of the prior art, the accompanying drawing used required in detailed description of the invention or description of the prior art will be briefly described below, apparently, accompanying drawing in describing below is embodiments more of the present utility model, for those of ordinary skill in the art, on the premise of not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings.
Fig. 1 is structural principle schematic diagram of the present utility model.
Wherein, n is the quantity of tested secondary circuit cable SMIS, and the component number representing corresponding during as footnote is identical with the quantity of tested secondary circuit cable SMIS.
Detailed description of the invention
For making the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with the accompanying drawings 1 and specific embodiment utility model is carried out clear, complete description.
As it is shown in figure 1, the present embodiment is divided into two terminals, i.e. A terminal and B terminal, described A terminal and B terminal to be connected to the two ends of tested secondary circuit cable；
Described A terminal includes adding voltage source DC1 and n bar controlling brancher in parallel, controlling brancher parallel connection described in n bar be followed by described in add the positive pole of voltage source DC1, its minus earth；The described controlling brancher structure of n bar parallel connection is identical, and every described controlling brancher all includes A end indicator lamp La, A end forward diode DaWith switch Ka, described A end indicator lamp LaWith A end forward diode DaThe switch K of correspondence is connected after series connectiona；
Adding the positive pole of voltage source DC1 described in one termination of every described controlling brancher, the other end of every described controlling brancher is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cablea；
Described B terminal includes the instruction branch road that n bar is in parallel, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road all includes B end indicator lamp LbWith B end forward diode D connected in seriesb；
One end ground connection of every described instruction branch road, the other end of every described instruction branch road is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cableb；
Described binding clip JaWith binding clip JbIt is connected with the two ends of any bar core in the n bar core of tested secondary circuit cable respectively；Described n is the quantity of tested secondary circuit cable SMIS.
Further, described A terminal also includes that power control switch K, described power control switch K are in series with described voltage source DC1 that adds.
Further, described A terminal also includes A end alarm SPa, described A end alarm SPaIt is in series with described voltage source DC1 that adds.
Further, described A terminal also includes protective resistance Ra, described protective resistance RaIt is in series with described voltage source DC1 that adds.
Further, described A terminal also includes A end self-test switch Ka, A end indicator lamp L in every described controlling brancheraWith A end forward diode DaThrough described A end self-test switch K after series connectionaGround connection.
Further, described B terminal also includes alarm SPb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described A end alarm SP after series connectionbGround connection.
Further, described B terminal also includes protective resistance Rb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described protective resistance R after series connectionbGround connection.
Further, described B terminal also includes that B end self-checking circuit, described B end self-checking circuit include diode Db, B end self-test switch KbWith self-inspection power supply DC2, the positive pole of described self-inspection power supply DC2 is successively through B end self-test switch KbWith diode DbAccess the binding clip J of every described instruction branch roadb。
Each terminal has multiloop access interface, has the controlling brancher of n bar parallel connection and the instruction branch road that n bar is in parallel the most respectively, uses for school, n bar core two ends line in tested secondary circuit cable.Owing to using the controlling brancher of n bar parallel connection and the instruction branch road that n bar is in parallel, achieve multiplex roles formula access function, reach only to need primary connection can complete the purpose that school lineman makees, staff is freed from the hard work mode of the most repeatedly wiring, is conducive to alleviating school line workload.
Two terminals have the function of the school line result of n bar core in the tested secondary circuit cable of display, by indicator lamp La、LbWith alarm SPa、SPbThe mode combined, shows the school line result of n bar core in tested secondary circuit cable.It is prone to intuitively observe the correctness of school, n bar core loop line, beneficially staff in tested secondary circuit cable and accurately identifies loop break-make situation.
In substation secondary specialty overhaul technological transformation or capital construction checking and accepting, it is very big that workload is changed in secondary cable loop, and secondary cable loop school lineman generally requires and expends the longest working time.Use fast-type secondary cable loop wire greatly to use manpower and material resources sparingly, improve operating efficiency, there is preferable future in engineering applications.
Fast-type secondary cable loop wire saves the working time, and concrete contrast is shown in such as table 1 below:
Table 1 job costs analysis
| School line method | Required number | Time | Applicating evaluating |
| Traditional secondary cable loop school line | 2 | 2-3 hour | Typically |
| Fast-type secondary cable loop wire | 2 | 0.5 hour | Preferably |
The present embodiment has the advantages that good human-computer interaction interface, volume are little, easy to carry, easily operated.
Last it is noted that above example is only in order to illustrate the technical solution of the utility model, it is not intended to limit；Although the utility model being described in detail with reference to previous embodiment, it will be understood by those within the art that: the technical scheme described in previous embodiment still can be modified by it, or wherein portion of techniques feature is carried out equivalent；And these amendments or replacement, do not make the essence of appropriate technical solution depart from the spirit and scope of the utility model embodiment technical scheme.
Claims (8)
1. a fast-type secondary cable loop wire, it is characterised in that: it includes that A terminal and B terminal, described A terminal and B terminal are connected to the two ends of tested secondary circuit cable；Described A terminal includes adding voltage source DC1 and n bar controlling brancher in parallel, controlling brancher parallel connection described in n bar be followed by described in add the positive pole of voltage source DC1, its minus earth；The described controlling brancher structure of n bar parallel connection is identical, and every described controlling brancher all includes A end indicator lamp La, A end forward diode DaWith switch Ka, A end indicator lamp L on every described controlling brancheraWith A end forward diode DaThe switch K of correspondence is connected after series connectiona；
Adding the positive pole of voltage source DC1 described in one termination of every described controlling brancher, the other end of every described controlling brancher is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cablea；
Described B terminal includes the instruction branch road that n bar is in parallel, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road all includes B end indicator lamp LbWith B end forward diode D connected in seriesb；
One end ground connection of every described instruction branch road, the other end of every described instruction branch road is provided with the binding clip J of any bar core in the n bar core for connect tested secondary circuit cableb；
Described binding clip JaWith binding clip JbIt is connected with the two ends of any bar core in the n bar core of tested secondary circuit cable respectively；Described n is the quantity of tested secondary circuit cable SMIS.
A kind of fast-type secondary cable loop the most according to claim 1 wire, it is characterised in that: described A terminal also includes that power control switch K, described power control switch K are in series with described voltage source DC1 that adds.
A kind of fast-type secondary cable loop the most according to claim 2 wire, it is characterised in that: described A terminal also includes A end alarm SPa, described A end alarm SPaIt is in series with described voltage source DC1 that adds.
A kind of fast-type secondary cable loop the most according to claim 3 wire, it is characterised in that: described A terminal also includes protective resistance Ra, described protective resistance RaIt is in series with described voltage source DC1 that adds.
5. according to a kind of fast-type secondary cable loop wire described in claim 1 or 3, it is characterised in that: described A terminal also includes A end self-test switch Ka, A end indicator lamp L in every described controlling brancheraWith A end forward diode DaThrough described A end self-test switch K after series connectionaGround connection.
A kind of fast-type secondary cable loop the most according to claim 1 wire, it is characterised in that: described B terminal also includes alarm SPb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described A end alarm SP after series connectionbGround connection.
7. according to a kind of fast-type secondary cable loop wire described in claim 1 or 6, it is characterised in that: described B terminal also includes protective resistance Rb, B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbThrough described protective resistance R after series connectionbGround connection.
8. according to a kind of fast-type secondary cable loop wire described in claim 1 or 6, it is characterised in that: described B terminal also includes that B end self-checking circuit, described B end self-checking circuit include diode Db, B end self-test switch KbWith self-inspection power supply DC2, the positive pole of described self-inspection power supply DC2 is successively through B end self-test switch KbWith diode DbAccess the binding clip J of every described instruction branch roadb。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620089724.2U CN205539298U (en) | 2016-01-29 | 2016-01-29 | Swift formula secondary cable circuit school line appearance |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620089724.2U CN205539298U (en) | 2016-01-29 | 2016-01-29 | Swift formula secondary cable circuit school line appearance |
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| Publication Number | Publication Date |
|---|---|
| CN205539298U true CN205539298U (en) | 2016-08-31 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620089724.2U Expired - Fee Related CN205539298U (en) | 2016-01-29 | 2016-01-29 | Swift formula secondary cable circuit school line appearance |
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| Country | Link |
|---|---|
| CN (1) | CN205539298U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606947A (en) * | 2016-01-29 | 2016-05-25 | 国家电网公司 | Fast secondary cable loop line checking instrument |
| CN107677918A (en) * | 2017-09-13 | 2018-02-09 | 国网山东省电力公司沂源县供电公司 | Portable cable wire searcher |
-
2016
- 2016-01-29 CN CN201620089724.2U patent/CN205539298U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606947A (en) * | 2016-01-29 | 2016-05-25 | 国家电网公司 | Fast secondary cable loop line checking instrument |
| CN107677918A (en) * | 2017-09-13 | 2018-02-09 | 国网山东省电力公司沂源县供电公司 | Portable cable wire searcher |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160831 |
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| CF01 | Termination of patent right due to non-payment of annual fee |