CN203786285U - Verification device for high voltage live-line display - Google Patents
Verification device for high voltage live-line display Download PDFInfo
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- CN203786285U CN203786285U CN201420153631.2U CN201420153631U CN203786285U CN 203786285 U CN203786285 U CN 203786285U CN 201420153631 U CN201420153631 U CN 201420153631U CN 203786285 U CN203786285 U CN 203786285U
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- 238000012795 verification Methods 0.000 title claims abstract description 12
- 230000003321 amplification Effects 0.000 claims abstract description 35
- 238000003199 nucleic acid amplification method Methods 0.000 claims abstract description 35
- 238000001914 filtration Methods 0.000 claims abstract description 14
- 230000001105 regulatory effect Effects 0.000 claims description 11
- 238000001514 detection method Methods 0.000 claims description 9
- 238000006243 chemical reaction Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 8
- 230000006698 induction Effects 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 description 1
- 229910018095 Ni-MH Inorganic materials 0.000 description 1
- 229910018477 Ni—MH Inorganic materials 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 229910052744 lithium Inorganic materials 0.000 description 1
Abstract
The utility model discloses a verification device for a high voltage live-line display. The verification device comprises a modulation circuit used for outputting three-way sine pulse-width modulation waves, a filter amplification circuit used for carrying out filtering amplification of the three-way sine pulse-width modulation waves and outputting a three-way sine voltage signal, and an output circuit used for outputting the three-way sine voltage signal. According to the technical scheme, the verification device comprises the modulation circuit, the filter amplification circuit and the output circuit, the modulation circuit is used for outputting the three-way sine pulse-width modulation waves, the filter amplification circuit is used for carrying out filtering amplification of the three-way sine pulse-width modulation waves to acquire the three-way sine voltage signal, the output circuit is used for receiving and outputting the three-way sine voltage signal, and thereby the three-way sine wave signal can be provided for the high voltage live-line display for accomplishing verification on the high voltage live-line display.
Description
Technical field
The application relates to high voltage power transmission technical field, more particularly, relates to a kind of calibration equipment of high-voltage charge display device.
Background technology
The whether charged place that high-voltage charge display device device is generally arranged on that inlet wire, bus, outlet, isolating switch, main transformer, switch cubicle, GIS combined electrical apparatus and other need to show, show charged by receiving sensor induction charging conductor output San road sine wave signal, thereby prevent electric misoperation, before installation, must carry out verification and can normally work to determine it.Need a kind of calibration equipment that can export three road sine wave signals badly, so that high-voltage charge display device is carried out to verification for this reason.
Utility model content
In view of this, the application provides a kind of calibration equipment of high-voltage charge display device, can provide three road sine wave signals for high-voltage charge display device, and the ac voltage signal of analog sensor induction output, carries out verification to complete to high-voltage charge display device.
To achieve these goals, the existing scheme proposing is as follows:
A calibration equipment for high-voltage charge display device, comprising:
Modulation circuit, for exporting three tunnel sinusoidal pulse width modulation ripples;
Filter amplification circuit, for carrying out filter and amplification and export three road sine voltage signals described three tunnel sinusoidal pulse width modulation ripples;
Output circuit, for exporting described three road sine voltage signals, whether described three road sine voltage signals are qualified for verification high-voltage charge display device.
Preferably, described filter amplification circuit comprises three filter and amplification branch roads;
Described filter and amplification branch road comprises:
Filtering circuit, for carrying out filtering sine wave output signal to described sinusoidal pulse width modulation ripple;
Amplifying circuit, for amplifying described sine wave signal and exporting described sine voltage signal;
Regulating circuit, regulates for the voltage to described sine voltage signal, and exports the sine voltage signal after regulating.
Preferably, described amplifying circuit comprises high precision operating amplifier.
Preferably, described regulating circuit comprises multiturn potentiometer.
Preferably, described output circuit comprises three output branch roads;
Described output branch road comprises:
Bleeder circuit, for carrying out dividing potential drop and exporting the first magnitude of voltage and the described sine voltage signal of second voltage value to described sine voltage signal;
Commutation circuit, be respectively the described sine voltage signal of described the first magnitude of voltage and described second voltage value, and output voltage is the described sine voltage signal of described the first magnitude of voltage or described second voltage value for receiver voltage respectively;
Load circuit, for receiving and export the described sine voltage signal of described commutation circuit output.
Preferably, described bleeder circuit comprises the first divider resistance, the second divider resistance and the 3rd divider resistance of series connection successively.
Preferably, also comprise:
Testing circuit, for detection of and show the magnitude of voltage of the described three road sine voltage signals of described output circuit output.
Preferably, described testing circuit comprises three detection branch;
Described detection branch comprises:
Sample circuit, for the described sine voltage signal of described output circuit output is sampled and analog to digital conversion, and exports the magnitude of voltage of described sine voltage signal;
Driving circuit, for according to described magnitude of voltage output display signal;
Display unit, for showing described magnitude of voltage according to described display.
Preferably, described driving circuit comprises single-chip microcomputer.
Preferably, described display unit comprises eight segment numeral pipes.
Can find out from technique scheme, the calibration equipment of the high-voltage charge display device that the application provides comprises modulation circuit, filter amplification circuit and output circuit, modulation circuit is used for exporting three tunnel sinusoidal pulse width modulation ripples, filter amplification circuit Dui San road sinusoidal pulse width modulation ripple carries out filter and amplification, obtain three road sine voltage signals, output circuit is for receiving and export Gai San road sine voltage signal, thereby can provide three road sine wave signals for high-voltage charge display device, the ac voltage signal of analog sensor induction output, to complete the verification to high-voltage charge display device.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present application or technical scheme of the prior art, to the accompanying drawing of required use in embodiment or description of the Prior Art be briefly described below, apparently, accompanying drawing in the following describes is only some embodiment of the application, 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.
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 1 provides for the embodiment of the present application;
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 2 provides for another embodiment of the application;
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 3 provides for the another embodiment of the application;
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 4 provides for the another embodiment of the application.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present application, the technical scheme in the embodiment of the present application is clearly and completely described, obviously, described embodiment is only some embodiments of the present application, instead of whole embodiment.Based on the embodiment in the application, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the application's protection.
Embodiment mono-
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 1 provides for the embodiment of the present application.
As shown in Figure 1, the calibration equipment of the disclosed high-voltage charge display device of the present embodiment comprises modulation circuit 10, filter amplification circuit 20 and output circuit 30, wherein: filter amplification circuit 20 is connected with modulation circuit 10, output circuit 30 respectively.
Modulation circuit 10 is for exporting three tunnel sinusoidal pulse width modulation ripples.
Sinusoidal pulse width modulation ripple SPWM (Sinusoidal Pulse Width Modulation) is a kind of comparative maturity, uses at present PWM technology more widely.This technology is utilized pulse width by sinusoidal rule variation and the PWM waveform of sinusoidal wave equivalence is the break-make of switching device in SPWM waveform control of inverter circuit, the area of pulse voltage and the area of the sine wave of desired output in respective bins of its output are equated, modulate wave frequency and frequency and the amplitude of adjustable inverter circuit output voltage of amplitude by change.
Filter amplification circuit 20 is carried out filter amplifying processing for modulation circuit 10 being exported to San road sinusoidal pulse width modulation ripple, and exports three road sine voltage signals;
Output circuit 30 is exported San road sine voltage signal Va, Vb and Vc for receiving also output filtering amplifying circuit 20.
In the present embodiment, output frequency is preferably 50 hertz, and output voltage is preferably 0～5 volt.
Can find out from technique scheme, the calibration equipment of the disclosed high-voltage charge display device of the present embodiment comprises modulation circuit, filter amplification circuit and output circuit, modulation circuit is used for exporting three tunnel sinusoidal pulse width modulation ripples, filter amplification circuit Dui San road sinusoidal pulse width modulation ripple carries out filter and amplification, obtain three road sine voltage signals, output circuit is for receiving and export Gai San road sine voltage signal, thereby can provide three road sine wave signals for high-voltage charge display device, the ac voltage signal of analog sensor induction output, to complete the verification to high-voltage charge display device.
Embodiment bis-
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 2 provides for another embodiment of the application.
As shown in Figure 2, the calibration equipment of the disclosed high-voltage charge display device of the present embodiment comprises modulation circuit 10, filter amplification circuit 20 and output circuit 30, wherein: filter amplification circuit 20 is connected with modulation circuit 10, output circuit 30 respectively.
Modulation circuit 10 is for exporting three tunnel sinusoidal pulse width modulation ripples.
Filter amplification circuit 20 is carried out filter amplifying processing for modulation circuit is exported to San road sinusoidal pulse width modulation ripple, and exports three road sine voltage signals.
Filter amplification circuit 20 comprises three filter and amplification branch roads 21.
Each filter and amplification branch road 21 comprises: filtering circuit 211, amplifying circuit 212 and regulating circuit 213, wherein amplifying circuit 212 is connected with filtering circuit 211, regulating circuit 213 respectively.
Filtering circuit 211 carries out filtering sine wave output signal for modulation circuit 10 being exported to San road sinusoidal pulse width modulation ripple Zhong mono-tunnel sinusoidal pulse width modulation ripple.
The sine voltage signal that amplifying circuit 212 amplifies and exports for the sine wave signal that filtering circuit 211 is exported.In amplifying circuit 212, include high precision operating amplifier.
Regulating circuit 213 regulates for the voltage of offset of sinusoidal voltage signal, and exports the sine voltage signal after regulating.Regulating circuit 213 comprises multiturn potentiometer.
Output circuit 30 is exported San road sine voltage signal Va, Vb and Vc for output filtering amplifying circuit 20.
Embodiment tri-
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 3 provides for the another embodiment of the application.
As shown in Figure 3, the calibration equipment of the disclosed high-voltage charge display device of the present embodiment comprises modulation circuit 10, filter amplification circuit 20 and output circuit 30, wherein: filter amplification circuit 20 is connected with modulation circuit 10, output circuit 30 respectively.
Modulation circuit 10 is for exporting three tunnel sinusoidal pulse width modulation ripples.
Filter amplification circuit 20 is carried out filter amplifying processing for modulation circuit 10 being exported to San road sinusoidal pulse width modulation ripple, and exports three road sine voltage signals;
Output circuit 30 is for output filtering amplifying circuit output San road sine voltage signal Va, Vb and Vc.
Output circuit 30 comprises three output branch roads 31.
Each output branch road 31 comprises bleeder circuit, commutation circuit 311 and load circuit, and wherein commutation circuit 311 is connected with bleeder circuit, load circuit respectively.
Bleeder circuit carries out dividing potential drop for the sine voltage signal that filter amplification circuit 20 is exported, and output voltage is respectively the sine voltage signal of the first magnitude of voltage and second voltage value.The first magnitude of voltage is 0～10 millivolt, and second voltage value is 0～100 millivolt.
Bleeder circuit comprises three divider resistances that are cascaded, comprise the first divider resistance R1, the second divider resistance R2 and the 3rd divider resistance R3, wherein one end of the first divider resistance R1 is used for receiving sine voltage signal, the other end is connected with one end of the second divider resistance R2, and the other end of the second divider resistance R2 is by the 3rd divider resistance R3 ground connection.Wherein the tie point of the first divider resistance R1 and the second divider resistance R2 is as the output terminal of the first magnitude of voltage, and the tie point of the second divider resistance R2 and the 3rd divider resistance R3 is as the output terminal of second voltage value.
Commutation circuit 311 is respectively the described sine voltage signal of described the first magnitude of voltage and described second voltage value for receiver voltage respectively, and output voltage is the sine voltage signal of the first magnitude of voltage or second voltage value.
Load circuit is for the sine voltage signal receiving and output switching circuit is exported.
Load circuit comprises capacitance C and pull-up resistor R4, and one end of capacitance C is for receiving the sine voltage signal that commutation circuit 311 is exported, and the other end is as the output terminal of sine voltage signal, and by pull-up resistor R4 ground connection.The preferred resistance of load circuit R4 is 100k Ω.
Because the output terminal of three road sine voltage signals passes through respectively pull-up resistor ground connection separately, therefore form Y-connection mode.
Embodiment tetra-
The structural drawing of the calibration equipment of a kind of high-voltage charge display device that Fig. 4 provides for the another embodiment of the application.
As shown in Figure 4, the calibration equipment of the disclosed high-voltage charge display device of the present embodiment is on the basis of a upper embodiment, to have set up testing circuit 40.Testing circuit 40 is connected with the output terminal of commutation circuit 311, for detecting respectively and display output circuit 30 is exported the magnitude of voltage of San road sine voltage signal.
Testing circuit 40 comprises three detection branch 41, and each detection branch 41 comprises sample circuit 411, driving circuit 412 and display unit 413, and wherein driving circuit 412 is connected with sample circuit 411, display unit 413 respectively.
Sample circuit 411 is sampled and analog to digital conversion for the sine voltage signal that commutation circuit 311 is exported, and exports the magnitude of voltage of sine voltage signal.
Driving circuit 412 is for receiving this magnitude of voltage and generating display according to magnitude of voltage.The preferred single-chip microcomputer of driving circuit.In actual applications, three of three detection branch driving circuits are respectively with a single-chip microcomputer.
Display unit 413 is for showing this magnitude of voltage according to display.Display unit 413 is 4 eight segment numeral pipes preferably, resolution to 0.01 millivolt.
In the calibration equipment of the high-voltage charge display device shown in above all embodiment, the preferred chargeable battery of electric supply installation, chargeable battery comprises lithium battery, Ni-MH battery, lead accumulator etc.And dispose the charging device that chargeable battery is charged.Also comprise the electric quantity display device being connected with chargeable battery, this device can show the dump energy of chargeable battery, in time battery be charged according to dump energy for operating personnel.
The voltage of chargeable battery is 12 volts, and by the power supply of two-way DC-DC buffer circuit, a road buffer circuit is for powering to modulation circuit and filter amplification circuit, and another road buffer circuit is for powering to testing circuit, to avoid interference between the two.
Electric supply installation also comprises switch, for being switched on or switched off being connected of chargeable battery and two-way DC-DC buffer circuit.
In the calibration equipment of the disclosed high-voltage charge display device of above embodiment, also comprise casing, all parts and device are all arranged in casing, so that carry.On casing, be provided with connection terminal, be connected with the sine voltage signal output terminal of output circuit respectively.
Finally, also it should be noted that, in this article, relational terms such as the first and second grades is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply and between these entities or operation, have the relation of any this reality or sequentially.And, term " comprises ", " comprising " or any other variant are intended to contain comprising of nonexcludability, thereby the process, method, article or the equipment that make to comprise a series of key elements not only comprise those key elements, but also comprise other key elements of clearly not listing, or be also included as the intrinsic key element of this process, method, article or equipment.The in the situation that of more restrictions not, the key element being limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment that comprises described key element and also have other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is and the difference of other embodiment, between each embodiment identical similar part mutually referring to.
To the above-mentioned explanation of the disclosed embodiments, make professional and technical personnel in the field can realize or use the application.To be apparent for those skilled in the art to the multiple amendment of these embodiment, General Principle as defined herein can, in the case of not departing from the application's spirit or scope, realize in other embodiments.Therefore, the application will can not be restricted to these embodiment shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (10)
1. a calibration equipment for high-voltage charge display device, is characterized in that, comprising:
Modulation circuit, for exporting three tunnel sinusoidal pulse width modulation ripples;
Filter amplification circuit, for carrying out filter and amplification and export three road sine voltage signals described three tunnel sinusoidal pulse width modulation ripples;
Output circuit, for exporting described three road sine voltage signals, whether described three road sine voltage signals are qualified for verification high-voltage charge display device.
2. calibration equipment as claimed in claim 1, is characterized in that, described filter amplification circuit comprises three filter and amplification branch roads;
Described filter and amplification branch road comprises:
Filtering circuit, for carrying out filtering sine wave output signal to described sinusoidal pulse width modulation ripple;
Amplifying circuit, for amplifying described sine wave signal and exporting described sine voltage signal;
Regulating circuit, regulates for the voltage to described sine voltage signal, and exports the sine voltage signal after regulating.
3. calibration equipment as claimed in claim 2, is characterized in that, described amplifying circuit comprises high precision operating amplifier.
4. calibration equipment as claimed in claim 2, is characterized in that, described regulating circuit comprises multiturn potentiometer.
5. calibration equipment as claimed in claim 1, is characterized in that, described output circuit comprises three output branch roads;
Described output branch road comprises:
Bleeder circuit, for carrying out dividing potential drop and exporting the first magnitude of voltage and the described sine voltage signal of second voltage value to described sine voltage signal;
Commutation circuit, be respectively the described sine voltage signal of described the first magnitude of voltage and described second voltage value, and output voltage is the described sine voltage signal of described the first magnitude of voltage or described second voltage value for receiver voltage respectively;
Load circuit, for receiving and export the described sine voltage signal of described commutation circuit output.
6. calibration equipment as claimed in claim 5, is characterized in that, described bleeder circuit comprises the first divider resistance, the second divider resistance and the 3rd divider resistance of series connection successively.
7. the calibration equipment as described in claim 1～6 any one, is characterized in that, also comprises:
Testing circuit, for detection of and show the magnitude of voltage of the described three road sine voltage signals of described output circuit output.
8. calibration equipment as claimed in claim 7, is characterized in that, described testing circuit comprises three detection branch;
Described detection branch comprises:
Sample circuit, for the described sine voltage signal of described output circuit output is sampled and analog to digital conversion, and exports the magnitude of voltage of described sine voltage signal;
Driving circuit, for according to described magnitude of voltage output display signal;
Display unit, for showing described magnitude of voltage according to described display.
9. calibration equipment as claimed in claim 8, is characterized in that, described driving circuit comprises single-chip microcomputer.
10. calibration equipment as claimed in claim 8, is characterized in that, described display unit comprises eight segment numeral pipes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153631.2U CN203786285U (en) | 2014-03-31 | 2014-03-31 | Verification device for high voltage live-line display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420153631.2U CN203786285U (en) | 2014-03-31 | 2014-03-31 | Verification device for high voltage live-line display |
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| Publication Number | Publication Date |
|---|---|
| CN203786285U true CN203786285U (en) | 2014-08-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420153631.2U Expired - Lifetime CN203786285U (en) | 2014-03-31 | 2014-03-31 | Verification device for high voltage live-line display |
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| CN (1) | CN203786285U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730482A (en) * | 2015-03-11 | 2015-06-24 | 国网辽宁省电力有限公司辽阳供电公司 | Portable high-pressure charged display testing device |
| CN106646311A (en) * | 2016-11-25 | 2017-05-10 | 国网福建省电力有限公司 | Portable high-voltage charged displayer verification device |
-
2014
- 2014-03-31 CN CN201420153631.2U patent/CN203786285U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104730482A (en) * | 2015-03-11 | 2015-06-24 | 国网辽宁省电力有限公司辽阳供电公司 | Portable high-pressure charged display testing device |
| CN104730482B (en) * | 2015-03-11 | 2017-07-11 | 国网辽宁省电力有限公司辽阳供电公司 | A kind of portable high-pressure electrification display experimental rig |
| CN106646311A (en) * | 2016-11-25 | 2017-05-10 | 国网福建省电力有限公司 | Portable high-voltage charged displayer verification device |
| CN106646311B (en) * | 2016-11-25 | 2023-06-16 | 国网福建省电力有限公司 | Verification device of portable high-voltage electrified display |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140820 |