CN105606947A - Fast secondary cable loop line checking instrument - Google Patents
Fast secondary cable loop line checking instrument Download PDFInfo
- Publication number
- CN105606947A CN105606947A CN201610061866.2A CN201610061866A CN105606947A CN 105606947 A CN105606947 A CN 105606947A CN 201610061866 A CN201610061866 A CN 201610061866A CN 105606947 A CN105606947 A CN 105606947A
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- China
- Prior art keywords
- terminal
- branch road
- fast
- cable
- self
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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
Abstract
The invention discloses a fast secondary cable loop line checking instrument and belongs to the field of verification equipment. The instrument comprises an A terminal and a B terminal, and the A terminal and the B terminal are respectively connected with the two ends of a detected secondary loop cable; the A terminal comprises a boosting power source DC1 and n parallel-connected control branches, the n control branches are connected in parallel and then are connected with the anode of the boosting power source DC1, and the cathode of the boosting power source DC1 is grounded; one end of each control branch is connected with the anode of the boosting power source DC1, the other end of each control branch is provided with a splicing fitting Ja used for connection with any one core in the detected secondary loop cable; the B terminal comprises n parallel-connected indication branches, the n parallel-connected indication branches are of the same structure, each indication branch comprises a B-end indication lamp Lb and a B-end positive diode Db connected in series therewith; and one end of each indication branch is grounded and the other end is provided with a splicing fitting Jb used for connection with any one core in the detected secondary loop cable. The fast secondary cable loop line checking instrument has the advantages of high portability, simple operation and accurate and visual test result.
Description
Technical field
The invention belongs to calibration equipment field, be 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 the correct work of protective relaying device, secondary cable school lineman is again very 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 once, can only complete the verification in a loop, wiring is comparatively loaded down with trivial details, and school lineman not only needs to find correct loop, more to determine between each loop and not have short circuit to connect, 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.
Summary of the invention
The fast-type secondary cable loop wire that technical problem to be solved by this invention is to provide and is a kind ofly easy to carry, simple to operate and result of the test is accurate and visual.
For addressing the above problem, the technical solution used in the present invention is:
A kind of fast-type secondary cable loop wire, is applicable to the training and teaching work of power system secondary professional production scene, capital construction scene and real training, is intended to improve operating efficiency and the accuracy that secondary cable loop school lineman does. Its key technology is: it comprises A terminal and B terminal, and described A terminal and B terminal are connected to the two ends of tested secondary circuit cable; Described A terminal comprises the control branch road that adds voltage source DC1 and the parallel connection of n bar, controls the positive pole that adds voltage source DC1 described in connecing after branch circuit parallel connection described in n bar, its minus earth; The described control branch structure of n bar parallel connection is identical, and every described control branch road includes A end indicator lamp La, A end forward diode DaAnd K switcha, the A end indicator lamp L on every described control branch roadaWith A end forward diode DaAfter series connection, connect corresponding K switcha；
Described in one termination of every described control branch road, add the positive pole of voltage source DC1, the other end of every described control branch road is provided with the binding clip J of the arbitrary core of n bar core for connecting tested secondary circuit cablea；
Described B terminal comprises the instruction branch road of n bar parallel connection, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road includes B end indicator lamp LbThe B of series connection end forward diode D with itb；
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 the arbitrary core of n bar core for connecting tested secondary circuit cableb；
Described binding clip JaWith binding clip JbBe connected with the two ends of arbitrary 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 comprises power control switch K, described power control switch K with described in add voltage source DC1 and be in series.
Further, described A terminal also comprises A end alarm SPa, described A end alarm SPaBe in series with the described voltage source DC1 that adds.
Further, described A terminal also comprises protective resistance Ra, described protective resistance RaBe in series with the described voltage source DC1 that adds.
Further, described A terminal also comprises A end self-test switch Ka, A end indicator lamp L in every described control branch roadaWith A end forward diode DaAfter series connection, hold self-test switch K through described AaGround connection.
Further, described B terminal also comprises alarm SPb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection, hold alarm SP through described AbGround connection.
Further, described B terminal also comprises protective resistance Rb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection through described protective resistance RbGround connection.
Further, described B terminal also comprises B end self-checking circuit, and described B end self-checking circuit comprises 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。
The beneficial effect that adopts technique scheme to produce is:
The present invention adopts forward-, series diode in each control branch road and instruction branch road, guarantees the one-way conduction of electric current, has ensured experimental safe; School lineman author receives the core of tested secondary circuit cable respectively between two terminals of wire, between A terminal and B terminal, by the core two end loop pressurizations of gauge tap K to tested secondary circuit cable successively, every corresponding indicator lamp L of coreaAnd Lb, contribute to all can observe at distant tested secondary circuit cable two ends the situation of break-make, by the indicator lamp L on wireaAnd Lb, the core two end loop conductings of the bright tested secondary circuit cable that represents its correspondence of which indicator lamp, are same core; Other indicator lamps go out and represent that core two end loops of corresponding tested secondary circuit cable are obstructed, make school toe-in fruit accurately, intuitively, facilitate the school lineman author of A, two terminals of B can see school toe-in fruit, without additional communication simultaneously.
The present invention will add voltage source DC1, protective resistance Ra, power control switch K, the control branch road of n bar parallel connection and the instruction branch road of n bar parallel connection be integrated in one, the universal meter using while substituting original school line, have be easy to carry, clear display, feature simple to operate.
Whether the present invention, without censorship, only need make regular check on each indicator lamp and can correctly use, maintenance cost saving.
The present invention in use adds voltage source DC1 and can be composed in series by No. 1 battery, and string has protective resistance Ra, thering is power control switch K simultaneously, safety coefficient is higher, can not cause damage to grid equipment, is in like manner applicable to the protective resistance R of B terminalb, guarantee the safe handling of this wire, protective resistance RaAnd RbCan play safeguard protection effect to diode and whole wire.
The present invention is also provided with alarm SP in B terminalb, in the time that tested secondary circuit cable is longer, make B end also can recognize the situation of break-make simultaneously, make A terminal and B terminal synchronizes break-make situation.
The present invention is also provided with A end self-test switch K in A terminal and B terminal respectivelyaWith B end self-checking circuit, use self-checking function is provided for guarantee equipment is normal, easy to use, strengthen practicality.
Brief description of the drawings
In order to be illustrated more clearly in the specific embodiment of the invention or technical scheme of the prior art, to the accompanying drawing of required use in detailed description of the invention or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is some embodiments of the present invention, for those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural principle schematic diagram of the present invention.
Wherein, n is the quantity of tested secondary circuit cable SMIS, and n represents that corresponding components and parts are n during as footnote.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing 1 and specific embodiment, invention is carried out to clear, complete description.
As shown in Figure 1, the present embodiment is divided into two terminals, i.e. A terminal and B terminal, and described A terminal and B terminal are connected to the two ends of tested secondary circuit cable;
Described A terminal comprises the control branch road that adds voltage source DC1 and the parallel connection of n bar, controls the positive pole that adds voltage source DC1 described in connecing after branch circuit parallel connection described in n bar, its minus earth; The described control branch structure of n bar parallel connection is identical, and every described control branch road includes A end indicator lamp La, A end forward diode DaAnd K switcha, described A end indicator lamp LaWith A end forward diode DaAfter series connection, connect corresponding K switcha；
Described in one termination of every described control branch road, add the positive pole of voltage source DC1, the other end of every described control branch road is provided with the binding clip J of the arbitrary core of n bar core for connecting tested secondary circuit cablea；
Described B terminal comprises the instruction branch road of n bar parallel connection, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road includes B end indicator lamp LbThe B of series connection end forward diode D with itb；
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 the arbitrary core of n bar core for connecting tested secondary circuit cableb；
Described binding clip JaWith binding clip JbBe connected with the two ends of arbitrary 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 comprises power control switch K, described power control switch K with described in add voltage source DC1 and be in series.
Further, described A terminal also comprises A end alarm SPa, described A end alarm SPaBe in series with the described voltage source DC1 that adds.
Further, described A terminal also comprises protective resistance Ra, described protective resistance RaBe in series with the described voltage source DC1 that adds.
Further, described A terminal also comprises A end self-test switch Ka, A end indicator lamp L in every described control branch roadaWith A end forward diode DaAfter series connection, hold self-test switch K through described AaGround connection.
Further, described B terminal also comprises alarm SPb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection, hold alarm SP through described AbGround connection.
Further, described B terminal also comprises protective resistance Rb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection through described protective resistance RbGround connection.
Further, described B terminal also comprises B end self-checking circuit, and described B end self-checking circuit comprises 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 respectively the control branch road of n bar parallel connection and the instruction branch road of n bar parallel connection, for using at school, tested secondary circuit cable n bar core two ends line. Owing to adopting the control branch road of n bar parallel connection and the instruction branch road of n bar parallel connection, realize many interface types access function, reach only need primary connection can complete school lineman do object, by staff from the past repeatedly the hard work mode of wiring free, be conducive to alleviate school line workload.
Two terminals have the function of the school toe-in fruit that shows n bar core in tested secondary circuit cable, by indicator lamp La、LbWith alarm SPa、SPbThe mode combining, shows the school toe-in of n bar core in tested secondary circuit cable really. Be easy to intuitively observe the correctness of school, n bar core loop line in tested secondary circuit cable, be conducive to staff and accurately identify loop break-make situation.
In substation secondary specialty overhaul technological transformation or capital construction checking and accepting, it is very large that workload is changed in secondary cable loop, and secondary cable loop school lineman often needs to expend the very long working time. Use fast-type secondary cable loop wire greatly to use manpower and material resources sparingly, increase work efficiency, there is good future in engineering applications.
Fast-type secondary cable loop wire is saved the working time, and concrete contrast is shown in as following table 1:
The analysis of table 1 job costs
| School line method | Required number | Time | Applicating evaluating |
| Traditional secondary cable loop school line | 2 | 2-3 hour | Generally |
| Fast-type secondary cable loop wire | 2 | 0.5 hour | Better |
The present embodiment has that good human-computer interaction interface, volume are little, easy to carry, the feature of easy operating.
Finally it should be noted that: above embodiment only, in order to technical scheme of the present invention to be described, is not intended to limit; Although the present invention is had been described in detail with reference to previous embodiment, those of ordinary skill in the art is to be understood that: its technical scheme that still can record previous embodiment is modified, or part technical characterictic is wherein equal to replacement; And these amendments or replacement do not make the essence of appropriate technical solution depart from the spirit and scope of embodiment of the present invention technical scheme.
Claims (8)
1. a fast-type secondary cable loop wire, is characterized in that: it comprises A terminal and B terminal, and described A terminal and B terminal are connected to the two ends of tested secondary circuit cable; Described A terminal comprises the control branch road that adds voltage source DC1 and the parallel connection of n bar, controls the positive pole that adds voltage source DC1 described in connecing after branch circuit parallel connection described in n bar, its minus earth; The described control branch structure of n bar parallel connection is identical, and every described control branch road includes A end indicator lamp La, A end forward diode DaAnd K switcha, the A end indicator lamp L on every described control branch roadaWith A end forward diode DaAfter series connection, connect corresponding K switcha；
Described in one termination of every described control branch road, add the positive pole of voltage source DC1, the other end of every described control branch road is provided with the binding clip J of the arbitrary core of n bar core for connecting tested secondary circuit cablea；
Described B terminal comprises the instruction branch road of n bar parallel connection, and the instruction branch structure of n bar parallel connection is identical, and every instruction branch road includes B end indicator lamp LbThe B of series connection end forward diode D with itb；
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 the arbitrary core of n bar core for connecting tested secondary circuit cableb；
Described binding clip JaWith binding clip JbBe connected with the two ends of arbitrary core in the n bar core of tested secondary circuit cable respectively; Described n is the quantity of tested secondary circuit cable SMIS.
2. a kind of fast-type secondary cable according to claim 1 loop wire, is characterized in that: described A terminal also comprises power control switch K, described power control switch K with described in add voltage source DC1 and be in series.
3. a kind of fast-type secondary cable according to claim 2 loop wire, is characterized in that: described A terminal also comprises A end alarm SPa, described A end alarm SPaBe in series with the described voltage source DC1 that adds.
4. a kind of fast-type secondary cable according to claim 3 loop wire, is characterized in that: described A terminal also comprises protective resistance Ra, described protective resistance RaBe in series with the 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 characterized in that: described A terminal also comprises A end self-test switch Ka, A end indicator lamp L in every described control branch roadaWith A end forward diode DaAfter series connection, hold self-test switch K through described AaGround connection.
6. a kind of fast-type secondary cable according to claim 1 loop wire, is characterized in that: described B terminal also comprises alarm SPb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection, hold alarm SP through described AbGround connection.
7. according to a kind of fast-type secondary cable loop wire described in claim 1 or 6, it is characterized in that: described B terminal also comprises protective resistance Rb, the B end indicator lamp L on every described instruction branch roadbWith B end forward diode DbAfter series connection through described protective resistance RbGround connection.
8. according to a kind of fast-type secondary cable loop wire described in claim 1 or 6, it is characterized in that: described B terminal also comprises B end self-checking circuit, described B end self-checking circuit comprises 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 |
|---|---|---|---|
| CN201610061866.2A CN105606947A (en) | 2016-01-29 | 2016-01-29 | Fast secondary cable loop line checking instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610061866.2A CN105606947A (en) | 2016-01-29 | 2016-01-29 | Fast secondary cable loop line checking instrument |
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| Publication Number | Publication Date |
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| CN105606947A true CN105606947A (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610061866.2A Pending CN105606947A (en) | 2016-01-29 | 2016-01-29 | Fast secondary cable loop line checking instrument |
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| CN (1) | CN105606947A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771827A (en) * | 2017-03-31 | 2017-05-31 | 国网福建省电力有限公司 | A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation |
| CN107907779A (en) * | 2017-11-03 | 2018-04-13 | 中车青岛四方机车车辆股份有限公司 | Hand-held cable connection test device, system and test method used for rail vehicle |
| 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 |
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| CN202049207U (en) * | 2011-02-21 | 2011-11-23 | 中国石油化工集团公司 | Electronic type cable sorter |
| CN202758030U (en) * | 2012-08-10 | 2013-02-27 | 湖南工程学院 | Intelligent cable wire pairing device |
| CN203249978U (en) * | 2013-03-22 | 2013-10-23 | 国家电网公司 | Secondary cable sorting apparatus |
| CN205539298U (en) * | 2016-01-29 | 2016-08-31 | 国家电网公司 | Swift formula secondary cable circuit school line appearance |
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2016
- 2016-01-29 CN CN201610061866.2A patent/CN105606947A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202049207U (en) * | 2011-02-21 | 2011-11-23 | 中国石油化工集团公司 | Electronic type cable sorter |
| CN202758030U (en) * | 2012-08-10 | 2013-02-27 | 湖南工程学院 | Intelligent cable wire pairing device |
| CN203249978U (en) * | 2013-03-22 | 2013-10-23 | 国家电网公司 | Secondary cable sorting apparatus |
| CN205539298U (en) * | 2016-01-29 | 2016-08-31 | 国家电网公司 | Swift formula secondary cable circuit school line appearance |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106771827A (en) * | 2017-03-31 | 2017-05-31 | 国网福建省电力有限公司 | A kind of site protects the automatic school line apparatus of the single-ended pre-fabricated electric cables of transformer station and its implementation |
| CN107907779A (en) * | 2017-11-03 | 2018-04-13 | 中车青岛四方机车车辆股份有限公司 | Hand-held cable connection test device, system and test method used for rail vehicle |
| 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 |
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Application publication date: 20160525 |
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