CN103809013B - A kind of high voltage testing device - Google Patents
A kind of high voltage testing device Download PDFInfo
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- CN103809013B CN103809013B CN201410081045.6A CN201410081045A CN103809013B CN 103809013 B CN103809013 B CN 103809013B CN 201410081045 A CN201410081045 A CN 201410081045A CN 103809013 B CN103809013 B CN 103809013B
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Abstract
Disclosure one high voltage testing device, including being connected to the handle and feeler lever that control on box, feeler lever comprises insulation tube and contact, is provided with the current rectifying and wave filtering circuit electrically connected successively with contact and a component piezoresistance in insulation tube, and insulation tube tube wall is provided with hole, one group of location；Controlling to be provided with location spring in box, insulation tube runs through control box and is connected with controlling box by positioning the spring cooperation with hole, location；Controlling to be provided with in box the four-operational amplifier that constant voltage dc source is powered, constitute the positive pole input of four-operational amplifier after one end series connection divider resistance of location spring, the output of four-operational amplifier drives is located at the light emitting diode controlling box；Series connection divider resistance in circuit can be changed by regulating feeler lever, four-operational amplifier is made to obtain different output voltages, by Light-Emitting Diode judge power circuit electric with three-phase equilibrium situation, judge whether circuit exists obvious three-phase imbalance, it is beneficial to operator's screening inspection, improves work efficiency.
Description
Technical field
The present invention relates to electric power tool field, specifically a kind of high voltage testing device.
Background technology
Known, whether charged high voltage electroscope be one of common tool on detection power circuit, current high voltage electroscope generally can only judge the charged situation of circuit simply, and usually need to judge the three-phase equilibrium problem of power circuit in actual line data-logging maintenance work, but the specific purpose tool often complicated operation of detection three-phase equilibrium, the circuit patrolled and examined for numerous needs to spend the substantial amounts of time.
Summary of the invention
It is an object of the invention to provide a kind of high voltage testing device, whether this device can not only detect power circuit charged, it is also possible to judges whether to exist on circuit obvious three-phase imbalance, is beneficial to operator's screening inspection, saves the time, improves work efficiency.
The technical solution adopted for the present invention to solve the technical problems is:
A kind of high voltage testing device, including being connected to the handle and feeler lever that control on box, control box box face and be provided with control switch, control to be provided with constant voltage dc source in box, it is characterized in that, described feeler lever comprises insulation tube and is located at the contact at insulation tube top, the current rectifying and wave filtering circuit electrically connected with contact it is provided with in insulation tube, rectification filter circuit output end has been sequentially connected in series a component piezoresistance, the tube wall of insulation tube is provided with hole, one group of location, and the linkage section between the adjacent divider resistance of each two is all corresponding in turn to and positions hole in one；Controlling the through hole that box top and bottom is provided with through, control to be provided with location spring in box, insulation tube is located in through hole and is connected with controlling box by positioning the spring cooperation with hole, location；Control to be provided with four-operational amplifier in box, constant voltage dc source is powered to four-operational amplifier by controlling switch, link between one end and the divider resistance of location spring connects, the other end is connected with first group of positive pole input of four-operational amplifier, first group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and first group of output of four-operational amplifier drives is located at the first light emitting diode controlling box box face.
Further, the positive pole of described constant voltage dc source is connected by controlling the second group of positive pole input of switch and four-operational amplifier, second group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and second group of output of four-operational amplifier drives is located at the second light emitting diode controlling box box face.
Further, described location spring connects one end of four-operational amplifier and is also connected with the 3rd group of positive pole input of four-operational amplifier, 3rd group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and the 3rd group of output of four-operational amplifier drives is located at the buzzer controlling box box face.
The invention has the beneficial effects as follows, series connection divider resistance in circuit can be changed by feeler lever mobile in through hole, adjusting the input voltage of four-operational amplifier, make four-operational amplifier obtain different output voltage, operator obtain electric situation by what Light-Emitting Diode judged power circuit；Owing to the line voltage distribution of three-phase equilibrium is equal, as long as so the divider resistance connected when the different circuit of detection is unequal, then three-phase voltage is just uneven, realize the judgement that whether there is obvious three-phase imbalance on circuit, it is beneficial to operator's screening inspection, saves the time, improve work efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the present invention is further described:
Fig. 1 is the structural representation of the embodiment of the present invention；
Fig. 2 is the use schematic diagram positioning spring and hole, location in the present invention；
Fig. 3 is the circuit theory diagrams of the embodiment of the present invention.
Detailed description of the invention
Shown in Fig. 1, a kind of high voltage testing device provided by the invention, including being connected to the handle 3 and feeler lever 2 that control on box 1, control box 1 box face and be provided with control switch K1, the first light emitting diode D1, the second light emitting diode D2 and buzzer BUZ；In conjunction with shown in Fig. 2 and Fig. 3, feeler lever 2 comprises insulation tube 8 and the contact 4 at 8 tops of being located at insulation tube, is provided with the current rectifying and wave filtering circuit 7 electrically connected with contact 4 in insulation tube 8, and current rectifying and wave filtering circuit 7 outfan has been sequentially connected in series divider resistance R1, R2, R3 and R4；The tube wall of insulation tube 8 is provided with hole 5, one group of location, and the linkage section between the adjacent divider resistance of each two is all corresponding in turn to and positions hole in one；Controlling the through hole that box 1 top and bottom is provided with through, control to be provided with location spring 6 in box 1, insulation tube 8 is located in through hole and is connected with controlling box 1 by positioning the spring 6 cooperation with hole 5, location；Control to be provided with in box 1 constant voltage dc source 9 and four-operational amplifier CF324, constant voltage dc source 9 is powered to CF324 by controlling switch K1, link between one end and the divider resistance of location spring 6 connects, after other end series resistance R5, first group of positive pole input In1+ with CF324 is connected, first group of negative pole input In1-of CF324 connects the negative pole of constant voltage dc source 9 by resistance R7, and first group of output Out1 of CF324 is connected to the negative pole of constant voltage dc source 9 after being sequentially connected in series resistance R6 and the first light emitting diode D1.The positive pole of constant voltage dc source 9 is connected by inputting In2+ with second group of positive pole of CF324 after control switch K1 series resistance R8, connecting the negative pole of constant voltage dc source 9 after second group of negative pole input In2-series resistance R10 of CF324, second group of output Out2 of CF324 connects and is connected the negative pole of constant voltage dc source 9 after the second light emitting diode D2 and resistance R9.
One end that location spring 6 connects CF324 is connected also by the 3rd group of positive pole input In3+ of resistance R11 and CF324, the 3rd group of negative pole input In3-of CF324 connects the negative pole of constant voltage dc source 9 by resistance R12, and the 3rd group of output Out3 of CF324 is connected with the negative pole of constant voltage dc source 9 after connecting buzzer BUZ.
During use, first moving feeler lever 2, make location spring 6 be positioned at the hole, location of feeler lever 2 afterbody, divider resistance R1～R4 connects in circuit；Pressing control switch K1, constant voltage dc source 9 is powered for CF324, and now, second group of output Out2 of CF324 drives the second light emitting diode D2, if D2 luminescence, shows that CF324 is working properly, it is possible to carry out next step detection；Hand-held handle 3, contacts electric lines of force with the contact 4 on feeler lever 2, and the rectification of the rectified filter circuit 7 of alternating current on electric lines of force and filtering obtain galvanic current, and unidirectional current inputs the In1+ of CF324 through divider resistance R1～R4 and R5；If the second light emitting diode D1 does not work, then adjust feeler lever 2, location spring 6 is made to snap in adjacent hole, location, divider resistance R1～R3 connects in circuit, the voltage got reduces, the voltage of the In1+ of input CF324 increases, the Out1 output voltage of CF324 also increases, if the second light emitting diode D1 lights, then show electric lines of force has electricity, if the second light emitting diode D1 does not work, then continue to adjust feeler lever 2 according to appeal step, location spring 6 is made to snap in different holes, location according to the order of sequence, if the second light emitting diode D1 lights when location spring 6 is in hole, a certain location, then show that electric lines of force is charged, buzzer BUZ also can sound and point out operator simultaneously；When location spring 6 snaps in the hole, location of feeler lever 2 head, divider resistance is not had to connect in circuit, if now the second light emitting diode D1 does not work, then show on electric lines of force not charged, realizing the detection whether electric lines of force is charged, in this process, resistance R5, R6, R7, R9, R10, R11 and R12 play metering function.If the three-phase equilibrium of electric lines of force, so the voltage of three-phase should be consistent, when using this electroscopic device respectively the charged situation of three-phase to be detected, when the second light emitting diode D1 lights, location spring 6 should be positioned at identical hole, location, if location spring 6 is positioned at different holes, location, then show that the three-phase voltage on electric lines of force is inconsistent, namely three-phase imbalance, now the situation of three-phase imbalance is detected by available dedicated instrument further, realize the judgement that whether there is obvious three-phase imbalance on circuit, it is beneficial to operator's screening inspection, the saving time, improve work efficiency.
The above, be only presently preferred embodiments of the present invention, and the present invention not does any pro forma restriction；Any those of ordinary skill in the art, without departing from, under technical solution of the present invention ambit, may utilize the method for the disclosure above and technology contents and technical solution of the present invention is made many possible variations and modification, or be revised as the Equivalent embodiments of equivalent variations.Therefore, every content without departing from technical solution of the present invention, to any simple modification made for any of the above embodiments, equivalent replacement, equivalence change and modify according to the technical spirit of the present invention, all still fall within the scope of technical solution of the present invention protection.
Claims (3)
1. a high voltage testing device, including being connected to the handle and feeler lever that control on box, control box box face and be provided with control switch, control to be provided with constant voltage dc source in box, it is characterized in that, described feeler lever comprises insulation tube and is located at the contact at insulation tube top, the current rectifying and wave filtering circuit electrically connected with contact it is provided with in insulation tube, rectification filter circuit output end has been sequentially connected in series a component piezoresistance, the tube wall of insulation tube is provided with hole, one group of location, and the link between the adjacent divider resistance of each two is all corresponding in turn to and positions hole in one；Controlling the through hole that box top and bottom is provided with through, control to be provided with location spring in box, insulation tube is located in through hole and is connected with controlling box by positioning the spring cooperation with hole, location；Control to be provided with four-operational amplifier in box, constant voltage dc source is powered to four-operational amplifier by controlling switch, link between one end and the divider resistance of location spring connects, the other end is connected with first group of positive pole input of four-operational amplifier, first group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and first group of output of four-operational amplifier drives is located at the first light emitting diode controlling box box face.
2. a kind of high voltage testing device according to claim 1, it is characterized in that, the positive pole of described constant voltage dc source is connected by controlling the second group of positive pole input of switch and four-operational amplifier, second group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and second group of output of four-operational amplifier drives is located at the second light emitting diode controlling box box face.
3. a kind of high voltage testing device according to claim 1 and 2, it is characterized in that, described location spring connects one end of four-operational amplifier and is also connected with the 3rd group of positive pole input of four-operational amplifier, 3rd group of negative pole input of four-operational amplifier connects the negative pole of constant voltage dc source, and the 3rd group of output of four-operational amplifier drives is located at the buzzer controlling box box face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081045.6A CN103809013B (en) | 2014-03-07 | 2014-03-07 | A kind of high voltage testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410081045.6A CN103809013B (en) | 2014-03-07 | 2014-03-07 | A kind of high voltage testing device |
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| Publication Number | Publication Date |
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| CN103809013A CN103809013A (en) | 2014-05-21 |
| CN103809013B true CN103809013B (en) | 2016-06-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410081045.6A Expired - Fee Related CN103809013B (en) | 2014-03-07 | 2014-03-07 | A kind of high voltage testing device |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057534Y (en) * | 2007-04-25 | 2008-05-07 | 夏大洪 | Induction type digital high-voltage electroscope |
| CN102841236A (en) * | 2012-09-02 | 2012-12-26 | 国家电网公司 | Multi-voltage-stage high voltage electroscope |
| CN102928799A (en) * | 2012-10-26 | 2013-02-13 | 四川省电力公司泸州电业局 | Handheld type power frequency high-voltage electroscope tester |
| CN203365531U (en) * | 2013-04-27 | 2013-12-25 | 国家电网公司 | Novel alternating-current and direct-current high-voltage electroscope |
| CN203849318U (en) * | 2014-03-07 | 2014-09-24 | 吴延书 | High-voltage electroscope |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008256534A (en) * | 2007-04-05 | 2008-10-23 | Chugoku Electric Power Co Inc:The | Extendable electroscope |
| JP2010243308A (en) * | 2009-04-06 | 2010-10-28 | Chugoku Electric Power Co Inc:The | Vibration-type voltage detector |
-
2014
- 2014-03-07 CN CN201410081045.6A patent/CN103809013B/en not_active Expired - Fee Related
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201057534Y (en) * | 2007-04-25 | 2008-05-07 | 夏大洪 | Induction type digital high-voltage electroscope |
| CN102841236A (en) * | 2012-09-02 | 2012-12-26 | 国家电网公司 | Multi-voltage-stage high voltage electroscope |
| CN102928799A (en) * | 2012-10-26 | 2013-02-13 | 四川省电力公司泸州电业局 | Handheld type power frequency high-voltage electroscope tester |
| CN203365531U (en) * | 2013-04-27 | 2013-12-25 | 国家电网公司 | Novel alternating-current and direct-current high-voltage electroscope |
| CN203849318U (en) * | 2014-03-07 | 2014-09-24 | 吴延书 | High-voltage electroscope |
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| Publication number | Publication date |
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| CN103809013A (en) | 2014-05-21 |
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Granted publication date: 20160629 Termination date: 20180307 |