CN205427117U - Comprehensive testing arrangement of insulator null value - Google Patents
Comprehensive testing arrangement of insulator null value Download PDFInfo
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- CN205427117U CN205427117U CN201520921634.0U CN201520921634U CN205427117U CN 205427117 U CN205427117 U CN 205427117U CN 201520921634 U CN201520921634 U CN 201520921634U CN 205427117 U CN205427117 U CN 205427117U
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- control chip
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- 239000012212 insulator Substances 0.000 title claims abstract description 51
- 238000012360 testing method Methods 0.000 title claims abstract description 30
- 230000005236 sound signal Effects 0.000 claims abstract description 4
- 230000001131 transforming effect Effects 0.000 claims description 17
- 230000009977 dual effect Effects 0.000 claims description 12
- 238000009413 insulation Methods 0.000 claims description 12
- 238000005070 sampling Methods 0.000 abstract description 3
- 239000004973 liquid crystal related substance Substances 0.000 abstract 2
- 239000000523 sample Substances 0.000 abstract 1
- 238000010998 test method Methods 0.000 abstract 1
- 238000001514 detection method Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 4
- 229910000831 Steel Inorganic materials 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229910052573 porcelain Inorganic materials 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a comprehensive testing arrangement of insulator null value, it belongs to the measuring instrument field, and it includes insulating casing, sets up main control chip, high frequency variable pressure circuit, sampling resistor circuit, AD converter, liquid crystal display module and voice broadcast module in insulating casing, be equipped with telescopic contact on the output of high frequency variable pressure circuit, main control chip's control signal output inserts the high frequency variable pressure circuit, and the high frequency variable pressure circuit connects through telescopic contact and is being surveyed the input of insulator, is surveyed the output of insulator through sampling resistor circuit access main control chip's input, and main control chip looks the audio signal output through AD converter access liquid crystal display module and voice broadcast module, telescopic contact comprises telescopic insulator spindle and the conducting probe point of connecting at telescopic insulator spindle tip. The utility model has the advantages that be applicable to various disk track insulators, facilitate the use, improved test procedure's security and work efficiency.
Description
Technical field
This utility model belongs to measuring instrument field, is specifically related to a kind of insulator null value and tests device comprehensively, it is adaptable to various dish footpaths insulator.
Background technology
At present, the method for transmission line of electricity porcelain insulator zero, low value test, for using pistol type tester, there is problems in that (1) test result is that hand of dial shows, numerical result display inaccuracy, it is impossible to accurate response insulator resistance；(2) during test insulator satisfactory to insulation resistance value without any prompting, when contact and insulator steel cap loose contact, do not record result time, also without any prompting, easily there is test leakage in instrument；(3) operator need to hold tester handle and prevent instrument from dropping, inconvenient to carry, finger is needed to pull " trigger " during test, need in insulator chain up conversion position when test, but existing equipment is unfavorable for realizing limit mobile limit test on insulator chain, there is bigger security risk, and for the insulator chain of distance height various location, labor intensity of operating staff is big, wastes time and energy during measurement.
Utility model content
Technical problem to be solved in the utility model there is provided a kind of applicable different dish footpaths insulator, convenience and high-efficiency, precise and stable insulator null value test device comprehensively.
This utility model adopts the following technical scheme that
A kind of insulator null value tests device comprehensively, and it includes insulation crust, the main control chip being arranged in insulation crust, high frequency transforming circuit, sample resistance circuit, A/D converter, LCD MODULE and voice broadcast module；The outfan of described high frequency transforming circuit is provided with telescopic contact；The control signal outfan of described main control chip accesses high frequency transforming circuit, described high frequency transforming circuit is connected on the input of tested insulator through telescopic contact, the outfan of described tested insulator accesses the input of sample resistance circuit, the outfan of described sample resistance circuit accesses the input of main control chip, and the video/audio signal outfan of described main control chip accesses described LCD MODULE and voice broadcast module through A/D converter；The side of described insulation crust is provided with the fixing band of tightness adjustable；Described telescopic contact is made up of telescopic insulating bar and the conductive tips being connected to described telescopic insulating bar end.
Further, described high frequency transforming circuit includes NPN type triode Q1 ~ Q2, diode D1 ~ D2, electric capacity C1 and high frequency transformer T1；The control signal outfan of described main control chip is respectively connected to the base stage of NPN type triode Q1 ~ Q2；The positive pole of described diode D1 connects the emitter stage of NPN type triode Q1, and its negative pole connects the colelctor electrode of NPN type triode Q1；The positive pole of described diode D2 connects the emitter stage of NPN type triode Q2, and its negative pole connects the colelctor electrode of NPN type triode Q2；The emitter stage of described NPN type triode Q1 connects the colelctor electrode of NPN type triode Q2；One end of described high frequency transformer T1 primary side connects diode D2 negative pole, the positive pole of another terminating diode D2 of described high frequency transformer T1 primary side through electric capacity C1, and the secondary side of described high frequency transformer T1 accesses the input of described tested insulator.
Further, described sample resistance circuit includes resistance R1 ~ R3 and dual operational amplifier LM358；The outfan of described tested insulator accesses negative pole and the positive pole of described dual operational amplifier LM358 respectively through resistance R1 and R2, described resistance R3 is connected in parallel between negative pole and the outfan of described dual operational amplifier LM358, and the outfan of described dual operational amplifier LM358 accesses the input of described A/D converter.
Further, the model of described LCD MODULE is JLX2402A.
Further, the model of described voice broadcast module is WT588D.
Further, described main control chip is PIC16F series monolithic.
The beneficial effects of the utility model are: this utility model uses LCD MODULE display test result, compare pointer and show more accurate, and stable performance, data redundancy is good；During test, insulator satisfactory to insulation resistance value has prompting, i.e. when contact and insulator steel cap loose contact, do not record result time, the voice broadcast module in this utility model can send alarm, be allowed to be not susceptible to test leakage；Contact in this utility model uses telescopic design, it is applicable to various dish footpaths insulator, not only convenient use is without changing contact, and improves testing efficiency, improves the safety of test process, the work efficiency of lifting insulator zero value detection, further increases the scope of application.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the circuit theory diagrams of sample resistance circuit in this utility model
Wherein, 1 main control chip, 2 high frequency transforming circuits, 3 sample resistance circuit, 4A/D transducer, 5 LCD MODULE, 6 voice broadcast modules, 7 tested insulators, 8 telescopic contacts.
Detailed description of the invention
1 ~ 2 the utility model is described in further detail below in conjunction with the accompanying drawings.
With reference to Fig. 1 ~ 2: main control chip 1, high frequency transforming circuit 2, sample resistance circuit 3, A/D converter 4, LCD MODULE 5 and the voice broadcast module 6 that embodiment includes insulation crust, is arranged in insulation crust；The outfan of described high frequency transforming circuit 2 is provided with telescopic contact 8；The control signal outfan of described main control chip 1 accesses high frequency transforming circuit 2, described high frequency transforming circuit 2 is connected on the input of tested insulator 7 through telescopic contact 8, the outfan of described tested insulator 7 accesses the input of sample resistance circuit 3, the outfan of described sample resistance circuit 3 accesses the input of main control chip 1, and the video/audio signal outfan of described main control chip 1 accesses described LCD MODULE 5 and voice broadcast module 6 through A/D converter 4；The side of described insulation crust is provided with the fixing band of tightness adjustable；Described telescopic contact 8 is made up of telescopic insulating bar and the conductive tips being connected to described telescopic insulating bar end.
Further, described high frequency transforming circuit 2 includes NPN type triode Q1 ~ Q2, diode D1 ~ D2, electric capacity C1 and high frequency transformer T1；The control signal outfan of described main control chip 1 is respectively connected to the base stage of NPN type triode Q1 ~ Q2；The positive pole of described diode D1 connects the emitter stage of NPN type triode Q1, and its negative pole connects the colelctor electrode of NPN type triode Q1；The positive pole of described diode D2 connects the emitter stage of NPN type triode Q2, and its negative pole connects the colelctor electrode of NPN type triode Q2；The emitter stage of described NPN type triode Q1 connects the colelctor electrode of NPN type triode Q2；One end of described high frequency transformer T1 primary side connects diode D2 negative pole, the positive pole of another terminating diode D2 of described high frequency transformer T1 primary side through electric capacity C1, and the secondary side of described high frequency transformer T1 accesses the input of described tested insulator 7.
Further, described sample resistance circuit 3 includes resistance R1 ~ R3 and dual operational amplifier LM358；The outfan of described tested insulator 7 accesses negative pole and the positive pole of described dual operational amplifier LM358 respectively through resistance R1 and R2, described resistance R3 is connected in parallel between negative pole and the outfan of described dual operational amplifier LM358, and the outfan of described dual operational amplifier LM358 accesses the input of described A/D converter 4.
Further, the model of described LCD MODULE 5 is JLX2402A.
Further, the model of described voice broadcast module 6 is WT588D.
Further, described main control chip 1 is PIC16F series monolithic.
The work process of the present embodiment is as follows:
This voice digital display insulator null detection instrument uses MS's PIC16F series monolithic as main control chip 1, produce pwm pulse signal, control high frequency transforming circuit 2 is produced 5000V high pressure and is loaded on the tested insulator 7 of test block by telescopic contact 8, voltage, current sampling is realized by sample resistance circuit 3, test block resistance is calculated through main control chip 1, to LCD MODULE 5 and voice broadcast module 6 by output after A/D converter 4, carry out numerical value and show and voice broadcast.Voice numerical value insulator null detection instrument appearance design is exquisite, easy and simple to handle, and when using this device, the operator less position that only needs to move just can realize insulator zero value detection without leaning out whole health, improves the safety of test process.During use, the fixing band of the tightness adjustable of the side of insulation crust need to be enclosed within hand by operator, only need to open tester switch, button press triggers tester state to be tested and can start test job, and this telescopic contact has the on-deformable feature of thing of boldly confronting a powerful opponent by mistake, have and be generally applicable to different electric pressure, the feature of different model insulator.
When using voice digital display insulator null detection instrument to test, insulator resistance can show in LCDs in real time, when resistance reaches the 500M Ω of regulatory requirements, and voice broadcast " good ", when resistance is less than 500M Ω, voice broadcast numerical value.
The above embodiment is only preferred embodiment of the present utility model, and the not feasible enforcement of this utility model is exhaustive.For persons skilled in the art, any obvious change done to it on the premise of without departing substantially from this utility model principle and spirit, within all should being contemplated as falling with claims of the present utility model.
Claims (7)
1. an insulator null value tests device comprehensively, it is characterised in that: it main control chip (1), high frequency transforming circuit (2), sample resistance circuit (3), A/D converter (4), LCD MODULE (5) and voice broadcast module (6) of including insulation crust, being arranged in insulation crust；The outfan of described high frequency transforming circuit (2) is provided with telescopic contact (8)；The control signal outfan of described main control chip (1) accesses high frequency transforming circuit (2), described high frequency transforming circuit (2) is connected on the input of tested insulator (7) through telescopic contact (8), the outfan of described tested insulator (7) accesses the input of sample resistance circuit (3), the outfan of described sample resistance circuit (3) accesses the input of main control chip (1), and the video/audio signal outfan of described main control chip (1) accesses described LCD MODULE (5) and voice broadcast module (6) through A/D converter (4)；Described telescopic contact (8) is made up of telescopic insulating bar and the conductive tips being connected to described telescopic insulating bar end.
A kind of insulator null value the most according to claim 1 tests device comprehensively, it is characterised in that: described high frequency transforming circuit (2) includes NPN type triode Q1 ~ Q2, diode D1 ~ D2, electric capacity C1 and high frequency transformer T1；The control signal outfan of described main control chip (1) is respectively connected to the base stage of NPN type triode Q1 ~ Q2；The positive pole of described diode D1 connects the emitter stage of NPN type triode Q1, and its negative pole connects the colelctor electrode of NPN type triode Q1；The positive pole of described diode D2 connects the emitter stage of NPN type triode Q2, and its negative pole connects the colelctor electrode of NPN type triode Q2；The emitter stage of described NPN type triode Q1 connects the colelctor electrode of NPN type triode Q2；One end of described high frequency transformer T1 primary side connects diode D2 negative pole, the positive pole of another terminating diode D2 of described high frequency transformer T1 primary side through electric capacity C1, and the secondary side of described high frequency transformer T1 accesses the input of described tested insulator (7).
3. test device according to a kind of insulator null value described in any one of claim 1 or 2 comprehensively, it is characterised in that: described sample resistance circuit (3) includes resistance R1 ~ R3 and dual operational amplifier LM358；The outfan of described tested insulator (7) accesses negative pole and the positive pole of described dual operational amplifier LM358 respectively through resistance R1 and R2, described resistance R3 is connected in parallel between negative pole and the outfan of described dual operational amplifier LM358, and the outfan of described dual operational amplifier LM358 accesses the input of described A/D converter (4).
A kind of insulator null value the most according to claim 1 tests device comprehensively, it is characterised in that: the model of described LCD MODULE (5) is JLX2402A.
A kind of insulator null value the most according to claim 1 tests device comprehensively, it is characterised in that: the model of described voice broadcast module (6) is WT588D.
A kind of insulator null value the most according to claim 1 tests device comprehensively, it is characterised in that: described main control chip (1) is PIC16F series monolithic.
A kind of insulator null value the most according to claim 1 tests device comprehensively, it is characterised in that: the side of described insulation crust is provided with the fixing band of tightness adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921634.0U CN205427117U (en) | 2015-11-18 | 2015-11-18 | Comprehensive testing arrangement of insulator null value |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520921634.0U CN205427117U (en) | 2015-11-18 | 2015-11-18 | Comprehensive testing arrangement of insulator null value |
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| Publication Number | Publication Date |
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| CN205427117U true CN205427117U (en) | 2016-08-03 |
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| CN201520921634.0U Active CN205427117U (en) | 2015-11-18 | 2015-11-18 | Comprehensive testing arrangement of insulator null value |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467280A (en) * | 2015-11-18 | 2016-04-06 | 国家电网公司 | Insulator zero value comprehensive test device |
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2015
- 2015-11-18 CN CN201520921634.0U patent/CN205427117U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105467280A (en) * | 2015-11-18 | 2016-04-06 | 国家电网公司 | Insulator zero value comprehensive test device |
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