CN205263248U - Insulation breakdown detection device - Google Patents
Insulation breakdown detection device Download PDFInfo
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- CN205263248U CN205263248U CN201521083082.7U CN201521083082U CN205263248U CN 205263248 U CN205263248 U CN 205263248U CN 201521083082 U CN201521083082 U CN 201521083082U CN 205263248 U CN205263248 U CN 205263248U
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- 238000009413 insulation Methods 0.000 title claims abstract description 35
- 230000015556 catabolic process Effects 0.000 title claims abstract description 30
- 238000001514 detection method Methods 0.000 title abstract description 6
- 238000012360 testing method Methods 0.000 claims abstract description 41
- 239000013307 optical fiber Substances 0.000 claims abstract description 6
- 230000005540 biological transmission Effects 0.000 claims abstract description 4
- 230000003287 optical effect Effects 0.000 claims description 142
- 238000004382 potting Methods 0.000 claims description 30
- 239000000835 fiber Substances 0.000 abstract description 4
- 238000006243 chemical reaction Methods 0.000 abstract 1
- 230000008054 signal transmission Effects 0.000 description 6
- 239000011159 matrix material Substances 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 3
- 230000003321 amplification Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
Abstract
The utility model provides an insulation breakdown detection device, the device is including one or more light signal emission module, one or more light signal reception module and indicating module as a result, light signal emission serial module is in the high -voltage testing return circuit, light signal reception module is passed through optic fibre and is corresponded the light signal emission module is connected, as a result indicating module with light signal reception module is connected, is used for receiving the signal of telecommunication of light signal reception module output, and according to every the experimental final result of electric signal display of light signal reception module output. The utility model discloses a heavy current signal conversion of light signal emission module in with the high -voltage testing circuit becomes the weak current signal and shows with predetermined display format to indicating module as a result through optical fiber transmission for do not have experienced operating personnel can accomplish by the insulation breakdown testing of test article yet, reduced the requirement to experimental operating personnel.
Description
Technical field
The utility model relates to detection technique field, is specifically related to a kind of insulation breakdown checkout gear.
Background technology
During grid equipment is safeguarded, operating personnel's personal safety and insulating tool used, managing security tools and instruments etc.The state of insulation of Work tool is closely bound up. According to code regulation, the examination of should regularly insulating of this type of instrumentTest, once there is the defective phenomenons such as insulation ag(e)ing, should be eliminated immediately, to avoid latent defectGeneration.
Prior art is by the leakage current table output test result of series connection. As Chinese patent literature CN201622320U discloses a kind of electric testing device of insulating safety tools, comprise leakage current table,Test article loading device, testing transformer, control cabinet, be connected on high-potting by leakage current table and returnLu Zhong, determines that by reading the registration of leakage current table whether test article is qualified.
But, in such scheme, need the registration that manually reads leakage current table could determine result of the test,Operating process is more loaded down with trivial details, and operating personnel's skills and experience is had relatively high expectations; In addition such scheme,And be not suitable for the result of the test of output batch testing product.
Summary of the invention
Therefore, the technical problems to be solved in the utility model is to overcome in prior art to test operationThe defect of batch testing product test is had relatively high expectations, is not suitable for to personnel's skills and experience, thereby provideA kind of insulation breakdown checkout gear.
The insulation breakdown checkout gear that the utility model provides, comprises one or more optical signal transmitting mouldsPiece, one or more optical signal receiving module and result indicating module, described optical signal receiving module isThe signal receiving module corresponding with described optical signal transmitter module;
Described optical signal transmitter module is connected in high-potting loop, for described high-potting is returnedThe signal of telecommunication in road converts optical signal to and sends;
Described optical signal receiving module connects with corresponding described optical signal transmitter module by optical fiber, usesIn the optical signal that receives described optical signal transmitter module transmission, and described optical signal transmitter module is sentOptical signal convert the signal of telecommunication to;
Described result indicating module is connected with described optical signal receiving module, for receiving described optical signalThe signal of telecommunication of receiver module output, and aobvious according to the signal of telecommunication of each described optical signal receiving module outputShow the final result of test.
Preferably, described optical signal transmitter module comprises current transformer and optical signal transmitter;
The input of described current transformer connects described high-potting loop, described current transformerBetween the positive pole of output and negative pole, be connected with described optical signal transmitter; When described high-potting loopIn while having leakage current, described optical signal transmitter receives the induced-current that described leakage current is corresponding,And induced-current corresponding described leakage current is converted to optical signal and sends.
Preferably, between the positive pole of the output of described current transformer and negative pole, be also connected with afterflowDiode.
Preferably, the anode of described optical signal transmitter is by current-limiting resistance and described fly-wheel diodeNegative electrode connects, the negative electrode of described optical signal transmitter and the anodic bonding of described fly-wheel diode.
Preferably, described optical signal receiving module comprises optical receiver and d type flip flop;
Described optical receiver receives the optical signal that described optical signal transmitter module sends, and by described light letterThe optical signal that number transmitter module sends converts the signal of telecommunication to; Described d type flip flop receives described optical receiverThe signal of telecommunication of output, and convert the pulse signal in the signal of telecommunication of described optical receiver output to high electricityFlat output.
Preferably, described result indicating module comprises programmable chip, operational amplifier and signal designationLamp;
The signal of telecommunication that described programmable chip is exported for receiving each described optical signal receiving module, andExport the driving signal of described signal lamp according to predetermined display format; Described operational amplifier receivesThe driving signal of the described signal lamp of described programmable chip output, and by described programmable chipAfter the driving signal of the described signal lamp of output amplifies, be input to the positive pole of described signal lamp,Drive described signal lamp to show.
Compared with prior art, the utlity model has following beneficial effect:
(1) insulation breakdown checkout gear described in the utility model, comprises one or more signal transmittingsModule, one or more optical signal receiving module and result indicating module, wherein, optical signal transmitting mouldPiece converts the signal of telecommunication in described high-potting loop optical signal to and sends optical signal receiving moduleReceive and convert optical signal to the signal of telecommunication, result indicating module is exported according to optical signal receiving moduleThe signal of telecommunication shows the final result of test. In this scheme, by optical signal transmitter module by high-pottingHeavy current signal in circuit convert weak current signal to and be transmitted through the fiber to result indicating module withPredetermined display format shows, makes unfamiliar operating personnel also can complete the insulation of product to be testedPuncture and detect test, reduced the requirement to test operation personnel.
(2) insulation breakdown checkout gear described in the utility model, described optical signal transmitter module comprisesCurrent transformer and optical signal transmitter, obtain by the current transformer being connected in high-potting loopGet the current parameters in high-potting loop, realized the decoupling zero in result display circuit and high-potting loop,Make the current parameters in high-potting loop not be subject to the impact of result display circuit situation, strengthened high pressureThe stability of test loop.
(3) insulation breakdown checkout gear described in the utility model, the electric current letter in high-potting loopNumber by optical signal sending module, optical fiber and optical signal receiving module transmission, signal transmission is not subject toElectromagnetic interference, has improved the stability and the accuracy that show result.
(4) insulation breakdown checkout gear described in the utility model, in the output of described current transformerEnd positive pole and negative pole between be also connected with fly-wheel diode, by with optical signal transmitter reverse parallel connectionFly-wheel diode protection optical signal transmitter can be because the output induced-current of current transformer is excessiveAnd damage.
(5) insulation breakdown checkout gear described in the utility model, described result indicating module comprises canProgramming chip, operational amplifier and signal lamp. By adopting programmable chip, can be by testResult is with multiple different being scheduled to such as dot matrix, word, image or signal lamp flicker or the flicker frequencysDisplay format shows, has enriched the form that result of the test shows, the experimenter of being convenient to lack experience learnsResult of the test; In addition, adopt programmable chip can show that product to be tested in enormous quantities tests simultaneously simultaneouslyResult, also reduced the quantity of circuit elements device, make circuit layout more regular.
Brief description of the drawings
In order to be illustrated more clearly in the utility model detailed description of the invention or technical side of the prior artCase, does the accompanying drawing to required use in detailed description of the invention or description of the Prior Art simply belowIntroduce, apparently, the accompanying drawing in the following describes is embodiments more of the present utility model, rightIn those of ordinary skill in the art, do not paying under the prerequisite of creative work, can also basisThese accompanying drawings obtain other accompanying drawing.
Figure 1A is a concrete example of insulation breakdown checkout gear in the utility model embodiment 1Theory diagram;
Figure 1B is the optical signal transmitter module of insulation breakdown checkout gear in the utility model embodiment 1Theory diagram;
Fig. 1 C is the optical signal receiving module of insulation breakdown checkout gear in the utility model embodiment 1Theory diagram;
Fig. 1 D is the result indicating module of insulation breakdown checkout gear in the utility model embodiment 1Theory diagram;
Fig. 2 is the flow process of a concrete example of insulation breakdown detection method in the embodiment of the present invention 1Figure.
Detailed description of the invention
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described, aobviousSo, described embodiment is the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making creative workThe every other embodiment obtaining under prerequisite, belongs to the scope that the utility model is protected.
In description of the present utility model, it should be noted that, unless otherwise clearly defined and limited,Term " is connected ", " connection " should be interpreted broadly, and for example, can be to be fixedly connected with, and also canBe to removably connect, or connect integratedly; Can be mechanical connection, can be also electrical connection; CanBeing to be directly connected, also can being indirectly connected by intermediary, can also be the company of two element internalsLogical, can be wireless connections, can be also wired connection. For those of ordinary skill in the art andSpeech, can concrete condition understand the concrete meaning of above-mentioned term in the utility model.
In addition related technical characterictic in the different embodiments of described the utility model,The conflict of will not forming each other just can mutually combine.
Embodiment 1
Originally execute example a kind of insulation breakdown checkout gear is provided, as shown in Figure 1A, comprise one or more lightSignal emission module 10, one or more optical signal receiving module 20 and result indicating module 30. LightSignal receiving module 20 is the signal receiving module corresponding with optical signal transmitter module 10, therefore, and signalReceiver module 20 is identical with the quantity of optical signal transmitter module 10. Result indicating module 30 can be withDisplay module optical signal receiving module 20 correspondences, that quantity is identical, also can quantity difference, as manyThe output of individual optical signal receiving module 20 is all connected to same result indicating module 30.
Optical signal transmitter module 10 is connected in high-potting loop, for by high-potting loopThe signal of telecommunication converts optical signal to and sends; Optical signal receiving module 20 is by optical fiber and corresponding optical signalTransmitter module 10 connects, the optical signal sending for receiving optical signals transmitter module 10, and light is believedThe optical signal that number transmitter module 10 sends converts the signal of telecommunication to; Result indicating module 30 connects with optical signalReceive module 20 and connect, the signal of telecommunication of exporting for receiving optical signals receiver module 20, and according to eachThe signal of telecommunication that optical signal receiving module 20 is exported shows the final result of test.
Optical signal transmitter module 10, as shown in Figure 1B, comprises current transformer 11 and optical signal transmittingDevice 14; The input of current transformer 11 connects high-potting loop, the output of current transformer 11Between the positive pole of end and negative pole, be connected with optical signal transmitter 14. When product to be tested insulation breakdown, high pressureIn test loop, there will be unexpected increase Leakage Current, when having leakage current in high-potting loopTime, optical signal transmitter 14 receives the induced-current that leakage current is corresponding, and by leakage current correspondenceInduced-current convert to optical signal and send.
Above-mentioned insulation breakdown checkout gear, obtains by the current transformer being connected in high-potting loopGet the current parameters in high-potting loop, realized the decoupling zero in result display circuit and high-potting loop,Make the current parameters in high-potting loop not be subject to the impact of result display circuit situation, strengthened high pressureThe stability of test loop; By optical signal sending module and optical signal receiving module, current parameters is turnedChange optical signal transmission into, make signal transmission not be subject to electromagnetic interference, improved the stability that shows resultAnd accuracy.
As preferred scheme, between the positive pole of the output of current transformer 11 and negative pole, also connectThere is fly-wheel diode 12. The anode of optical signal transmitter 14 is by current-limiting resistance 13 and fly-wheel diode12 negative electrode connects, the anodic bonding of the negative electrode of optical signal transmitter 14 and fly-wheel diode 12. WhenWhen the output of current transformer 11 is exported the electric current flowing to as shown in Figure 1B, fly-wheel diode 12 is anti-To cut-off, electric current flow through current-limiting resistance 13 and optical transmitting set 14, make optical signal transmitter 14 send lightSignal; When the current opposite in direction shown in electric current and Figure 1B of the output output of current transformer 11Time, fly-wheel diode 12 conductings, electric current this branch road of flowing through, to prevent the output of current transformer 111Induced-current excessive and damage optical signal transmitter 14.
Optical signal receiving module 20, as shown in Figure 1 C, comprises optical receiver 21 and d type flip flop 22;The optical signal that optical receiver 21 receiving optical signals transmitter modules 10 send, and by optical signal transmitter module10 optical signals that send convert the signal of telecommunication to; D type flip flop 22 receives the telecommunications that optical receiver 21 is exportedNumber, and pulse signal in the signal of telecommunication that optical receiver 21 is exported converts high level output to. HereD type flip flop can also replace with other pulse signal is converted to the electronic device of high level output.
Result indicating module 30, comprises programmable chip and signal lamp, and programmable chip is used for connecingReceive the signal of telecommunication that each optical signal receiving module 20 is exported, and refer to according to predetermined display format output signalShow the driving signal of lamp. Signal lamp is connected to the output of programmable chip, this programmable chipCan be single-chip microcomputer or CPLD (ComplexProgrammableLogicDevice, complex programmableLogical device) etc. programming device, result of the test can be referred to dot matrix, word, image or signalShow that the form such as lamp flicker or the flicker frequency shows, the experimenter of being convenient to lack experience learns result of the test.
This result indicating module 30, as shown in Fig. 1 D, also comprises operational amplifier 31, and reception can be compiledThe driving signal of the signal lamp of journey chip output, and by the signal lamp of programmable chip outputDriving signal amplify after, be input to the positive pole of signal lamp 32, drive signal lamp to show;Or directly the input of operational amplifier 31 directly connects the output of optical signal receiving module 20,Drive signal lamp 32 to show according to the output signal of optical signal receiving module 20.
By adopt programmable chip in result indicating module, can be by result of the test with dot matrix, literary compositionThe multiple different predetermined display format demonstrations such as word, image or signal lamp flicker or the flicker frequency,Enriched the form that result of the test shows, the experimenter of being convenient to lack experience learns result of the test; In addition,Adopt programmable chip can show the result that product to be tested in enormous quantities is tested simultaneously simultaneously, also reducedThe quantity of circuit elements device, makes circuit layout more regular.
The insulation breakdown checkout gear that the present embodiment provides, by optical signal transmitter module by high-pottingHeavy current signal in circuit convert weak current signal to and be transmitted through the fiber to result indicating module withPredetermined display format shows, makes unfamiliar operating personnel also can complete the insulation of product to be testedPuncture and detect test, reduced the requirement to test operation personnel.
Embodiment 2
The present embodiment provides a kind of insulation breakdown detection method that uses above-mentioned insulation breakdown device, asShown in Figure 1B, comprise the steps:
Step S1: will by the one or more optical signal transmitter modules that are connected in high-potting loopThe signal of telecommunication in high-potting loop converts optical signal to and sends. This step comprises following two steps:
Step S11: in the time there is leakage current in high-potting loop, make by described current transformerDescribed optical signal transmitter receives the induced-current that described leakage current is corresponding.
Step S12: convert induced-current corresponding described leakage current to light by described optical transmitting setSignal also sends.
Step S2: by connecting the described optical fiber of optical signal transmitter module and corresponding Optical Receivers,The optical signal transmission that optical signal transmitter module is sent is to optical signal receiving module.
Step S3: the optical signal sending by optical signal receiving module receiving optical signals transmitter module, andThe optical signal that optical signal transmitter module is sent converts the signal of telecommunication to. This step comprises following two steps:
Step S31: receive by described optical receiver the optical signal that described optical signal transmitter module sends,And the optical signal that described optical signal transmitter module is sent converts the signal of telecommunication to.
Step S32: receive the signal of telecommunication of described optical receiver output by described d type flip flop, and by instituteThe pulse signal of stating in the signal of telecommunication of optical receiver output converts high level output to.
Above-mentioned steps S1, to step S3, obtains by the current transformer being connected in high-potting loopThe current parameters in high-potting loop, has realized the decoupling zero in result display circuit and high-potting loop,Make the current parameters in high-potting loop not be subject to the impact of result display circuit situation, strengthened high pressureThe stability of test loop; By optical signal sending module and optical signal receiving module, current parameters is turnedChange optical signal transmission into, make signal transmission not be subject to electromagnetic interference, improved the stability that shows resultAnd accuracy.
Step S4: by the signal of telecommunication of result indicating module receiving optical signals receiver module output, and rootShow the final result of test according to the signal of telecommunication of each optical signal receiving module output. This step comprise asLower two steps:
Step S41: the electricity that receives each described optical signal receiving module output by described programmable chipSignal, and export the driving signal of described signal lamp according to predetermined display format. This predetermined demonstrationForm comprises result of the test with dot matrix, word, image or signal lamp flicker or the flicker frequency etc.Form shows.
Step S42: the described signal that receives described programmable chip output by described operational amplifier refers toShow the driving signal of lamp, and by the driving signal of the described signal lamp of described programmable chip outputAfter amplification, be input to the positive pole of described signal lamp, drive described signal lamp to show.
Above-mentioned steps S4, by adopt programmable chip in result indicating module, can be by test knotFruit is with multiple different predetermined showing such as dot matrix, word, image or signal lamp flicker or the flicker frequencysShow that form shows, enriched the form that result of the test shows, the experimenter of being convenient to lack experience learns testResult; In addition, adopt programmable chip can show the knot that product to be tested in enormous quantities is tested simultaneously simultaneouslyReally, also reduce the quantity of circuit elements device, made circuit layout more regular.
In addition, the method also comprises: by protecting with the fly-wheel diode of optical signal transmitter reverse parallel connectionProtecting optical signal transmitter can be due to excessive damage of output induced-current of current transformer.
The insulation breakdown detection method that the present embodiment provides, by optical signal transmitter module by high-pottingHeavy current signal in circuit convert weak current signal to and be transmitted through the fiber to result indicating module withPredetermined display format shows, makes unfamiliar operating personnel also can complete the insulation of product to be testedPuncture and detect test, reduced the requirement to test operation personnel.
Obviously, above-described embodiment is only for example is clearly described, and not to the side of enforcementThe restriction of formula. For those of ordinary skill in the field, also can on the basis of the above descriptionTo make other changes in different forms. Here without also giving all embodimentsWith exhaustive. And the apparent variation of being extended out thus or variation are still created in the utility modelProtection domain among.
Claims (6)
1. an insulation breakdown checkout gear, is characterized in that, described device comprises one or more lightSignal emission module, one or more optical signal receiving module and result indicating module, described optical signalReceiver module is the signal receiving module corresponding with described optical signal transmitter module;
Described optical signal transmitter module is connected in high-potting loop, for described high-potting is returnedThe signal of telecommunication in road converts optical signal to and sends;
Described optical signal receiving module connects with corresponding described optical signal transmitter module by optical fiber, usesIn the optical signal that receives described optical signal transmitter module transmission, and described optical signal transmitter module is sentOptical signal convert the signal of telecommunication to;
Described result indicating module is connected with described optical signal receiving module, for receiving described optical signalThe signal of telecommunication of receiver module output, and aobvious according to the signal of telecommunication of each described optical signal receiving module outputShow the final result of test.
2. insulation breakdown checkout gear according to claim 1, is characterized in that, described light letterNumber transmitter module comprises current transformer and optical signal transmitter;
The input of described current transformer connects described high-potting loop, described current transformerBetween the positive pole of output and negative pole, be connected with described optical signal transmitter; When described high-potting loopIn while having leakage current, described optical signal transmitter receives the induced-current that described leakage current is corresponding,And induced-current corresponding described leakage current is converted to optical signal and sends.
3. insulation breakdown checkout gear according to claim 2, is characterized in that, at described electricityBetween the positive pole of the output of current transformer and negative pole, be also connected with fly-wheel diode.
4. insulation breakdown checkout gear according to claim 3, is characterized in that, described light letterThe anode of number transmitter is connected with the negative electrode of described fly-wheel diode by current-limiting resistance, described optical signalThe negative electrode of transmitter and the anodic bonding of described fly-wheel diode.
5. insulation breakdown checkout gear according to claim 1, is characterized in that, described light letterNumber receiver module comprises optical receiver and d type flip flop;
Described optical receiver receives the optical signal that described optical signal transmitter module sends, and by described light letterThe optical signal that number transmitter module sends converts the signal of telecommunication to; Described d type flip flop receives described optical receiverThe signal of telecommunication of output, and convert the pulse signal in the signal of telecommunication of described optical receiver output to high electricityFlat output.
6. insulation breakdown checkout gear according to claim 1, is characterized in that, described resultIndicating module comprises programmable chip, operational amplifier and signal lamp;
The signal of telecommunication that described programmable chip is exported for receiving each described optical signal receiving module, andExport the driving signal of described signal lamp according to predetermined display format; Described operational amplifier receivesThe driving signal of the described signal lamp of described programmable chip output, and by described programmable chipAfter the driving signal of the described signal lamp of output amplifies, be input to the positive pole of described signal lamp,Drive described signal lamp to show.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083082.7U CN205263248U (en) | 2015-12-23 | 2015-12-23 | Insulation breakdown detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521083082.7U CN205263248U (en) | 2015-12-23 | 2015-12-23 | Insulation breakdown detection device |
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| CN205263248U true CN205263248U (en) | 2016-05-25 |
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| CN201521083082.7U Expired - Fee Related CN205263248U (en) | 2015-12-23 | 2015-12-23 | Insulation breakdown detection device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445632A (en) * | 2015-12-23 | 2016-03-30 | 国网山东省电力公司青岛供电公司 | Insulation breakdown detection device and method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105445632A (en) * | 2015-12-23 | 2016-03-30 | 国网山东省电力公司青岛供电公司 | Insulation breakdown detection device and method |
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Granted publication date: 20160525 Termination date: 20181223 |