CN204515116U - Arrester discharge counter comprehensive calibrator - Google Patents
Arrester discharge counter comprehensive calibrator Download PDFInfo
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- CN204515116U CN204515116U CN201520223377.3U CN201520223377U CN204515116U CN 204515116 U CN204515116 U CN 204515116U CN 201520223377 U CN201520223377 U CN 201520223377U CN 204515116 U CN204515116 U CN 204515116U
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- 238000012795 verification Methods 0.000 claims abstract description 40
- 230000009471 action Effects 0.000 claims abstract description 20
- 239000004973 liquid crystal related substance Substances 0.000 claims abstract description 13
- 230000008859 change Effects 0.000 claims description 4
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
- 230000003321 amplification Effects 0.000 claims description 3
- 238000001914 filtration Methods 0.000 claims description 3
- 229910052744 lithium Inorganic materials 0.000 claims description 3
- 239000011159 matrix material Substances 0.000 claims description 3
- 238000003199 nucleic acid amplification method Methods 0.000 claims description 3
- 230000010349 pulsation Effects 0.000 claims description 3
- 238000012360 testing method Methods 0.000 abstract description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000001052 transient effect Effects 0.000 description 3
- 229960001296 zinc oxide Drugs 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 2
- 238000007689 inspection Methods 0.000 description 2
- 238000012544 monitoring process Methods 0.000 description 2
- 230000035939 shock Effects 0.000 description 2
- 238000012549 training Methods 0.000 description 2
- HBBGRARXTFLTSG-UHFFFAOYSA-N Lithium ion Chemical compound [Li+] HBBGRARXTFLTSG-UHFFFAOYSA-N 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 229910001416 lithium ion Inorganic materials 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- APTZNLHMIGJTEW-UHFFFAOYSA-N pyraflufen-ethyl Chemical compound C1=C(Cl)C(OCC(=O)OCC)=CC(C=2C(=C(OC(F)F)N(C)N=2)Cl)=C1F APTZNLHMIGJTEW-UHFFFAOYSA-N 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 230000009466 transformation Effects 0.000 description 1
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Abstract
The utility model relates to a kind of arrester discharge counter comprehensive calibrator, its structure is, power supply unit, LCD liquid crystal display and key operation unit are connected with single-chip microcomputer main control unit simultaneously, and single-chip microcomputer main control unit is connected with counter milliammeter verification unit, counter action number of times verification unit simultaneously.Whether the utility model can export lightening strike simulating waveform to counter automatically, through the transport of single-chip microcomputer main control unit, check consistent at the verification counting of display screen display with counter action number of times, thus check that whether counter action number of times is normal; On milliammeter verifying function interface, lightning arrester discharge is counted the output current that milliammeter registration scale and tester show and contrast, see whether have obvious deviation between the two, can judge whether the display of arrester discharge counter milliammeter registration scale is accurate.Reduce the labour intensity of site test personnel, improve reliability, the accuracy of lightning arrester on-line computing model display data.
Description
Technical field
The utility model relates to a kind of electric system counter of lightning arrester field adjustable equipment, particularly relates to a kind of arrester discharge counter comprehensive calibrator, is mainly used in the field-checking of electric system arrester discharge counter, belong to electric power application.
Background technology
In recent years along with power system device on-line monitoring increases gradually; the discharge counter of Hyper-Voltage of Power Systems patron saint-lightning arrester; by single record lightning arrestor movement number of times, while developing into counting, possesses a kind of On-line Instrument of monitoring lightning arrester whether existing defects.At present, to arrester discharge counter, we only have employed bar type COUNTER CHECK instrument and carry out the verification of thunder and lightning movement counting, but DL/T393-2101 " power transmission and transformation equipment state overhauling testing regulations " requires that to counter, milliammeter being housed should verify milliammeter simultaneously, now there is no corresponding instrument verification.Although we have carried out Zinc oxide lightning arrester live-line test but also can only carry out single-point verification to the total current under working voltage, the overall display precision of reometer cannot be verified, lightning arrester defect can not have been found by the change of Leakage Current in time.
Summary of the invention
The utility model is for above-mentioned problems of the prior art, provide a kind of arrester discharge counter comprehensive calibrator, solve and cannot check test problem to counter of lightning arrester internal leakage milliammeter, this instrument energy degree of accuracy of monitor counter reometer and number of times of counter of lightning arrester action in time, ensures power system security reliability service.
The technical solution of the utility model is as follows:
Counter of lightning arrester comprehensive calibrator comprises power supply unit, LCD liquid crystal display, key operation unit, single-chip microcomputer main control unit, counter milliammeter verification unit, counting machine action frequency verification unit, wherein power supply unit, LCD liquid crystal display and key operation unit are connected with single-chip microcomputer main control unit simultaneously, and single-chip microcomputer main control unit is connected with counter milliammeter verification unit, counter action number of times verification unit simultaneously.
Described power supply unit adopts high-performance lithium battery-powered.
Described LCD liquid crystal display uses resolution 128*64 dot matrix single colour liquid crystal display.
Described single-chip microcomputer main control unit uses single-chip microcomputer as primary controller.
Described counter milliammeter verification unit comprises electric battery, power frequency inversion unit, duplex frequency boostering transformer, current adjustment unit; The inversion main control unit of power frequency inversion unit inside produces the square wave of dutycycle by sinusoidal rule change, after this square-wave signal carries out power amplification via H-bridge drive circuit, filtering is carried out by the inductance capacitance in sinusoidal wave generation unit, become the level and smooth sine wave identical with civil power, enter duplex frequency boostering transformer boosting.
Described counter milliammeter verification unit, adopt inner program control inverter to control alternating current to export, verify the pointing accuracy leaking milliammeter, the definite value that electric current exports as 9 shelves of 0.2mA-0.5mA-1.0mA-1.5mA-2.0mA-3.0mA-5.0mA-10.0mA-15.0mA exports.
Described counting machine action frequency verification unit comprises electric battery, variable duty ratio generative circuit, high direct voltage generating unit, voltage levels Gear Select Switch, high-voltage capacitance, counting output switch; Variable duty ratio generative circuit produces the pulse width modulated wave of variable duty ratio, pulse width modulated wave drives the power tube of high direct voltage generating unit inside, high-tension transformer output terminal produces the high direct voltage of pulsation, high direct voltage, after high-speed rectifier diode and voltage levels Gear Select Switch, enters high-voltage capacitance and becomes level and smooth high direct voltage and be stored.
The exportable lightening strike simulating waveform of described counting check functional unit, output waveform feature: voltage peak is 800V and 1200V, waveform: 8/20 us; Current amplitude: > 100A.
The utility model has the advantages of as follows:
1, movement counting inspection and leakage current are verified two verification projects and only use one set of instrument and a p-wire by the utility model, and only need operate several simple button on instrument can complete all Interventions Requested, substantially increases work efficiency.
2, when the utility model uses, wiring is simple, and instrument volume is little, lightweight, easy to carry; Tester is powered
Adopt the inner high-performance lithium ion rechargeable battery carried, instrument Overall Power Consumption is low, and a charging complete can use more than 8 hours continuously, is applicable to very much the use of substation field.
3, the utility model well solves existing product Problems existing and deficiency, reduces the labour intensity of site test personnel, improves reliability, the accuracy of lightning arrester on-line computing model display data.
4, global design of the present utility model has taken into full account technology and the application characteristic of arrester discharge counter, counter action number of times School Affairs leakage current is verified two test functions unite two into one, and combine on-the-spot practical situations, accomplish compact conformation, use the advantages such as simple, easy to carry.Meet the precision checking of current all Zinc-Oxide Arrester counter action and leakage milliammeter.Operation uses simple, easy to learn, without the need to carrying out the training of operating personnel in advance.
Accompanying drawing explanation
Fig. 1 is structural principle of the present utility model and measures schematic block diagram.
Fig. 2 is the circuit theory schematic diagram of the utility model counter milliammeter verification unit.
Fig. 3 is the circuit theory schematic diagram of the utility model counting machine action frequency verification unit.
Embodiment
Referring to accompanying drawing, in conjunction with specific embodiments, the utility model is described in detail
.
Embodiment
Global design as Fig. 1 counter of lightning arrester comprehensive calibrator has taken into full account technology and the application characteristic of arrester discharge counter, counter action number of times School Affairs leakage current is verified two test functions unite two into one, and combine on-the-spot practical situations, accomplish compact conformation, use the advantages such as simple, easy to carry.Meet the precision checking of current all Zinc-Oxide Arrester counter action and leakage milliammeter.Counter of lightning arrester comprehensive calibrator is primarily of formations such as power supply unit, LCD liquid crystal display, key operation unit, single-chip microcomputer main control unit, counter milliammeter verification unit, counting machine action frequency verification units, power supply unit, LCD liquid crystal display and key operation unit are connected with single-chip microcomputer main control unit simultaneously, and single-chip microcomputer main control unit is connected with counter milliammeter verification unit, counter action number of times verification unit simultaneously.Described power supply unit, adopts high-performance lithium battery-powered, inner through various high efficiency voltage conversion circuit, provides complete machine work necessary electric energy.Instrument Overall Power Consumption is low, and a charging complete can use more than 8 hours continuously.Described LCD liquid crystal display uses resolution 128*64 dot matrix single colour liquid crystal display, can clear Chinese display and figure, and carry backlight, all can the data such as clear display instrument current operating state, checking parameter and measurement result under various light conditions.Good environmental adaptability, all can normally work in-5 DEG C ~ 45 DEG C temperature ranges.Described counter of lightning arrester comprehensive calibrator has " milliammeter verification " and " counting check " two kinds of functions, and correlation parameter adjustment function, and these are all by the button operation on panel.Described single-chip microcomputer main control unit uses single-chip microcomputer as primary controller, the advantages such as integrated level is high, compact conformation, low in energy consumption, antijamming capability is strong that it has; There are 32 powerful bit data processing poweies, can carry out in real time for various data, calculation process at a high speed; Described counter milliammeter verification unit, adopt inner program control inverter to control alternating current to export, the pointing accuracy leaking milliammeter is verified, the definite value that electric current exports as 9 shelves such as 0.2mA-0.5mA-1.0mA-1.5mA-2.0mA-3.0mA-5.0mA-10.0mA-15.0mA exports, and can carry out customization selection by user according to the actual needs of oneself.The exportable lightening strike simulating waveform of described counting check functional unit, output waveform feature: voltage peak is can select " low (800V) " and " high (1200V) ", waveform: 8/20 us; Current amplitude: > 100A.
As shown in Figure 1, method of testing of the present utility model comprises the steps:
During inspection, start shooting after two of counter of lightning arrester comprehensive calibrator p-wires are connected on arrester discharge counter two ends, on counting check function interface, by " automatic Verification ", selection check number of times (3 times or 5 times), instrument exports lightening strike simulating waveform to counter automatically, and whether the verification counting of instrument display screen display is checked consistent with counter action number of times, thus checks that whether counter action number of times is normal; On milliammeter verifying function interface, by " automatic Verification ", lightning arrester discharge is counted the output current that milliammeter registration scale and tester show to contrast, see whether have obvious deviation between the two, can judge whether the display of arrester discharge counter milliammeter registration scale is accurate.Operation uses simple, easy to learn, without the need to carrying out the training of operating personnel in advance.
Described counter of lightning arrester comprehensive calibrator has " milliammeter verification " and " counting check " two kinds of functions, and correlation parameter adjustment function, and these are all by the button operation on panel.
Wherein " verification type " button can switch between the two in " milliammeter verification " and " counting check ", then presses flow process that " automatic Verification " key starts to reserve in advance according to inside to verify arrester discharge counter.Also the verification of single step can be carried out by " upper/manual counting " or " under/manual electric current ".
" to determine " and " cancellation " key is used for entering and logging off parameter adjustment menu, coordinate " upper/manual counting ", " under/manual electric current " parameter that two keys adjustment are relevant, as parameters such as counting check number of times, verification interval times.
As shown in Figure 2, described counter milliammeter verification unit comprises electric battery, power frequency inversion unit, duplex frequency boostering transformer, current adjustment unit.
During system works, the square wave of dutycycle by sinusoidal rule change is produced by the inversion main control unit of power frequency inversion unit inside, after this signal carries out power amplification via H-bridge drive circuit, filtering is carried out by the inductance capacitance in sinusoidal wave generation unit, become the level and smooth sine wave identical with civil power, enter duplex frequency boostering transformer boosting.
Export the alternating current of a series of current value by pre-set programs, observe the pointer indicator current value of milliammeter on arrester discharge counter, whether corresponding with the output current value of tester, using as the whether normal basis for estimation of arrester discharge counter work.
As shown in Figure 3, described counting machine action frequency verification unit comprises electric battery, variable duty ratio generative circuit, high direct voltage generating unit, voltage levels Gear Select Switch, high-voltage capacitance, counting output switch.
During system works, the pulse width modulated wave of variable duty ratio is produced by variable duty ratio generative circuit, drive the power tube of high direct voltage generating unit inside, export through high-tension transformer boosting, the high direct voltage of pulsation is produced at transformer output terminal, after high-speed rectifier diode and Gear Select Switch, enter high-voltage capacitance become level and smooth high direct voltage and be stored, when Gear Select Switch is dialled at high-pressure side, the transient voltage value of High voltage output is 1200V, when Gear Select Switch is dialled at low pressure end, the transient voltage value of High voltage output is 800V.
When electric capacity is filled with high voltage electricity, high pressure count pulse output terminal connects arrester discharge counter, internal processes controls counting output switch transient switching, exporting a time waveform from high pressure count pulse output terminal to arrester discharge counter is 8/20us, amplitude is greater than the simulation thunderbolt shock wave of 100A, and this shock wave makes arrester discharge counter produce a counting thunder.
Claims (8)
1. arrester discharge counter comprehensive calibrator, it is characterized in that comprising power supply unit, LCD liquid crystal display, key operation unit, single-chip microcomputer main control unit, counter milliammeter verification unit, counting machine action frequency verification unit, wherein power supply unit, LCD liquid crystal display and key operation unit are connected with single-chip microcomputer main control unit simultaneously, and single-chip microcomputer main control unit is connected with counter milliammeter verification unit, counter action number of times verification unit simultaneously.
2. arrester discharge counter comprehensive calibrator according to claim 1, is characterized in that described power supply unit adopts high-performance lithium battery-powered.
3. arrester discharge counter comprehensive calibrator according to claim 1, is characterized in that described LCD liquid crystal display uses resolution 128*64 dot matrix single colour liquid crystal display.
4. arrester discharge counter comprehensive calibrator according to claim 1, is characterized in that described single-chip microcomputer main control unit uses single-chip microcomputer as primary controller.
5. arrester discharge counter comprehensive calibrator according to claim 1, is characterized in that described counter milliammeter verification unit comprises electric battery, power frequency inversion unit, duplex frequency boostering transformer, current adjustment unit; The inversion main control unit of power frequency inversion unit inside produces the square wave of dutycycle by sinusoidal rule change, after this square-wave signal carries out power amplification via H-bridge drive circuit, filtering is carried out by the inductance capacitance in sinusoidal wave generation unit, become the level and smooth sine wave identical with civil power, enter duplex frequency boostering transformer boosting.
6. arrester discharge counter comprehensive calibrator according to claim 1 or 5, it is characterized in that described counter milliammeter verification unit, adopt inner program control inverter to control alternating current to export, verify the pointing accuracy leaking milliammeter, the definite value that electric current exports as 9 shelves of 0.2mA-0.5mA-1.0mA-1.5mA-2.0mA-3.0mA-5.0mA-10.0mA-15.0mA exports.
7. arrester discharge counter comprehensive calibrator according to claim 1, is characterized in that described counting machine action frequency verification unit comprises electric battery, variable duty ratio generative circuit, high direct voltage generating unit, voltage levels Gear Select Switch, high-voltage capacitance, counting output switch; Variable duty ratio generative circuit produces the pulse width modulated wave of variable duty ratio, pulse width modulated wave drives the power tube of high direct voltage generating unit inside, high-tension transformer output terminal produces the high direct voltage of pulsation, high direct voltage, after high-speed rectifier diode and voltage levels Gear Select Switch, enters high-voltage capacitance and becomes level and smooth high direct voltage and be stored.
8. the arrester discharge counter comprehensive calibrator according to claim 1 or 7, is characterized in that described counting check functional unit exports lightening strike simulating waveform, output waveform feature: voltage peak is 800V and 1200V, waveform: 8/20 us; Current amplitude: > 100A.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520223377.3U CN204515116U (en) | 2015-04-14 | 2015-04-14 | Arrester discharge counter comprehensive calibrator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201520223377.3U CN204515116U (en) | 2015-04-14 | 2015-04-14 | Arrester discharge counter comprehensive calibrator |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777444A (en) * | 2015-04-14 | 2015-07-15 | 国网辽宁省电力有限公司抚顺供电公司 | Lightning arrester discharge counter comprehensive calibration instrument and calibration method |
| CN106125030A (en) * | 2016-06-27 | 2016-11-16 | 国网甘肃省电力公司白银供电公司 | The multifunctional check of Portable arrester on-Line Monitor Device |
| CN114113744A (en) * | 2021-11-04 | 2022-03-01 | 国网河北省电力有限公司石家庄供电分公司 | Off-line high-voltage cable outdoor terminal arrester testing device |
-
2015
- 2015-04-14 CN CN201520223377.3U patent/CN204515116U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777444A (en) * | 2015-04-14 | 2015-07-15 | 国网辽宁省电力有限公司抚顺供电公司 | Lightning arrester discharge counter comprehensive calibration instrument and calibration method |
| CN104777444B (en) * | 2015-04-14 | 2018-04-06 | 国网辽宁省电力有限公司抚顺供电公司 | Arrester discharge counter comprehensive calibrator and method of calibration |
| CN106125030A (en) * | 2016-06-27 | 2016-11-16 | 国网甘肃省电力公司白银供电公司 | The multifunctional check of Portable arrester on-Line Monitor Device |
| CN114113744A (en) * | 2021-11-04 | 2022-03-01 | 国网河北省电力有限公司石家庄供电分公司 | Off-line high-voltage cable outdoor terminal arrester testing device |
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