CN203849318U - High-voltage electroscope - Google Patents
High-voltage electroscope Download PDFInfo
- Publication number
- CN203849318U CN203849318U CN201420100929.7U CN201420100929U CN203849318U CN 203849318 U CN203849318 U CN 203849318U CN 201420100929 U CN201420100929 U CN 201420100929U CN 203849318 U CN203849318 U CN 203849318U
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- China
- Prior art keywords
- group
- operational amplifier
- control enclosure
- voltage
- source
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- Withdrawn - After Issue
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Abstract
The utility model discloses a high-voltage electroscope comprising a handle and a contact rod connected on a control box respectively. The contact rod comprises an insulation pipe and a contact. The insulation pipe is internally provided with a rectification filter circuit and a group of voltage-dividing resistors, and the rectification filter circuit and the group of voltage-dividing resistors are electrically connected with the contact in sequence. The pipe wall of the insulation pipe is provided with a group of location holes. The control box is internally provided with a positioning spring. The insulating pipe passes through the control box and is connected with the control box through cooperation between the positioning spring and the location holes. The control box is also internally provided with four operational amplifiers powered by a voltage stabilization DC source. One end of the positioning spring is connected with the voltage-dividing resistors in series to form anode inputs of the four operational amplifiers, and output drivers of the four operational amplifiers are arranged in light emitting diodes of the control box. The voltage-dividing resistors serially connected in a circuit are changed by adjusting the contact rod, so that output voltages obtained by the four operational amplifiers are enabled to be different; and power acquisition of an electric line and a three-phase balance condition are determined by the light emitting diodes, and whether a three-phase unbalance condition obviously exists in a line is determined by the light emitting diodes, so that operators are helped in screening and checking, and working efficiency is improved.
Description
Technical field
The utility model relates to electric power tool field, specifically a kind of high voltage testing device.
Background technology
Known, whether charged high voltage electroscope be to detect on power circuit one of common tool, current high voltage electroscope generally can only judge the charged situation of circuit simply, and in actual line data-logging maintenance work, usually need to judge the three-phase equilibrium problem of power circuit, but the specific purpose tool of detection three-phase equilibrium is complicated operation often, and the circuit of patrolling and examining for numerous needs will spend a large amount of time.
Utility model content
The purpose of this utility model is to provide a kind of high voltage testing device, whether this device not only can detect power circuit charged, can also judge on circuit whether have obvious three-phase imbalance, is beneficial to operating personnel's screening test, save time, increase work efficiency.
The utility model solves the technical scheme that its technical matters adopts:
A kind of high voltage testing device, comprise the handle and the feeler lever that are connected on control enclosure, control enclosure box face is provided with gauge tap, in control enclosure, be provided with constant voltage dc source, it is characterized in that, described feeler lever comprises insulation tube and the contact of being located at insulation tube top, in insulation tube, be provided with the current rectifying and wave filtering circuit electrically connecting with contact, rectification filter circuit output end is in series with a component piezoresistance successively, the tube wall of insulation tube is provided with one group of pilot hole, and the linkage section between every two adjacent divider resistances is all successively corresponding to a pilot hole; Control enclosure top and bottom is provided with the through hole of perforation, is provided with retainer spring in control enclosure, and insulation tube is located in through hole and is connected with control enclosure with the cooperation of pilot hole by retainer spring; In control enclosure, be provided with four-operational amplifier, constant voltage dc source is powered to four-operational amplifier by gauge tap, one end of retainer spring and the linkage section between divider resistance join, the other end is connected with first group of anodal 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 the first light emitting diode of being located at control enclosure box face.
Further, the positive pole of described constant voltage dc source is connected by second group of anodal input of gauge tap 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 the second light emitting diode of being located at control enclosure box face.
Further, one end that described retainer spring connects four-operational amplifier is also connected with the 3rd group of anodal input of four-operational amplifier, the 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 the hummer of being located at control enclosure box face.
The beneficial effects of the utility model are, by mobile feeler lever in through hole, can change the divider resistance being connected in circuit, the input voltage of adjusting four-operational amplifier, makes four-operational amplifier obtain different output voltages, and operating personnel judge the electric situation that obtains of power circuit by light emitting diode; Because the line voltage distribution of three-phase equilibrium is equal, so as long as the divider resistance of connecting when detecting different circuit is unequal, three-phase voltage is just uneven so, whether realization is to there is the judgement of obvious three-phase imbalance on circuit, be beneficial to operating personnel's screening test, save time, increase work efficiency.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is further illustrated:
Fig. 1 is the structural representation of the utility model embodiment;
Fig. 2 is the use schematic diagram of retainer spring and pilot hole in the utility model;
Fig. 3 is the circuit theory diagrams of the utility model embodiment.
Embodiment
Shown in Fig. 1, a kind of high voltage testing device that the utility model provides, comprises the handle 3 and feeler lever 2 that are connected on control enclosure 1, and control enclosure 1 box face is provided with gauge tap K1, the first light emitting diode D1, the second light emitting diode D2 and hummer BUZ; Shown in Fig. 2 and Fig. 3, feeler lever 2 comprises insulation tube 8 and the contact 4 of being located at insulation tube 8 tops, is provided with the current rectifying and wave filtering circuit 7 electrically connecting with contact 4 in insulation tube 8, and current rectifying and wave filtering circuit 7 output terminals are in series with divider resistance R1, R2, R3 and R4 successively; The tube wall of insulation tube 8 is provided with one group of pilot hole 5, and the linkage section between every two adjacent divider resistances is all successively corresponding to a pilot hole; Control enclosure 1 top and bottom is provided with the through hole of perforation, is provided with retainer spring 6 in control enclosure 1, and insulation tube 8 is located in through hole and by retainer spring 6 and is connected with control enclosure 1 with the cooperation of pilot hole 5; In control enclosure 1, be provided with constant voltage dc source 9 and four-operational amplifier CF324, constant voltage dc source 9 is powered to CF324 by gauge tap K1, one end of retainer spring 6 and the linkage section between divider resistance join, after other end resistance in series R5, be connected with first group of anodal input In1+ of CF324, first group of negative pole input In1-of CF324 connects the negative pole of constant voltage dc sources 9 by resistance R 7, first group of output Out1 of CF324 is connected to the negative pole of constant voltage dc source 9 successively after resistance in series R6 and the first light emitting diode D1.The positive pole of constant voltage dc source 9 is by being connected with second group of anodal input In2+ of CF324 after gauge tap K1 resistance in series R8, the negative pole that connects constant voltage dc source 9 after second group of negative pole input In2-resistance in series R10 of CF324, second group of output Out2 of CF324 connect the second light emitting diode D2 and the rear negative pole that is connected constant voltage dc source 9 of resistance R 9.
One end that retainer spring 6 connects CF324 is also connected with the 3rd group of anodal input In3+ of CF324 by resistance R 11, the 3rd group of negative pole input In3-of CF324 connects the negative pole of constant voltage dc source 9 by resistance R 12, after the 3rd group of output Out3 of CF324 connects hummer BUZ, be connected with the negative pole of constant voltage dc source 9.
During use, first mobile feeler lever 2, makes retainer spring 6 be positioned at the pilot hole of feeler lever 2 afterbodys, and divider resistance R1～R4 is connected in circuit, press gauge tap K1, constant voltage dc source 9 is CF324 power supply, and now, second group of output Out2 of CF324 drives the second light emitting diode D2, if D2 is luminous, shows that CF324 is working properly, can carry out next step detection, hand-held handle 3, with the contact 4 contact line of electric force on feeler lever 2, the alternating current on line of electric force obtains galvanic current through rectification and the filtering of current rectifying and wave filtering circuit 7, and direct current is through the In1+ of divider resistance R1～R4 and R5 input CF324, if the second light emitting diode D1 does not work, adjust feeler lever 2, retainer spring 6 is snapped in adjacent pilot hole, divider resistance R1～R3 is connected in circuit, the voltage of getting 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, showing has electricity on line of electric force, if the second light emitting diode D1 does not work, according to appeal step, continue to adjust feeler lever 2, retainer spring 6 is snapped in different pilot holes according to the order of sequence, if retainer spring 6 in a certain pilot hole time the second light emitting diode D1 light, show that line of electric force is charged, the hummer BUZ alert of also can sounding simultaneously, when retainer spring 6 snaps in the pilot hole of feeler lever 2 heads, do not have divider resistance to be connected in circuit, if now the second light emitting diode D1 does not work, show on line of electric force not charged, the detection whether realization is charged to line of electric force, in this process, resistance R 5, R6, R7, R9, R10, R11 and R12 play metering function.If the three-phase equilibrium of line of electric force, the voltage of three-phase should be consistent so, when using this electroscopic device respectively the charged situation of three-phase to be detected, when the second light emitting diode D1 lights, retainer spring 6 should be positioned at identical pilot hole, if retainer spring 6 is positioned at different pilot holes, show that the three-phase voltage on line of electric force is inconsistent, three-phase imbalance namely, now available dedicated instrument further detects the situation of three-phase imbalance, whether realization is to there is the judgement of obvious three-phase imbalance on circuit, be beneficial to operating personnel's screening test, save time, improved work efficiency.
The above, be only preferred embodiment of the present utility model, not the utility model done to any pro forma restriction; Any those of ordinary skill in the art, do not departing from technical solutions of the utility model scope situation, all can utilize method and the technology contents of above-mentioned announcement to make many possible changes and modification to technical solutions of the utility model, or be revised as the equivalent embodiment of equivalent variations.Therefore; every content that does not depart from technical solutions of the utility model; according to technical spirit of the present utility model to any simple modification made for any of the above embodiments, be equal to replacements, equivalence changes and modify, all still belong in the scope that technical solutions of the utility model protect.
Claims (3)
1. a high voltage testing device, comprise the handle and the feeler lever that are connected on control enclosure, control enclosure box face is provided with gauge tap, in control enclosure, be provided with constant voltage dc source, it is characterized in that, described feeler lever comprises insulation tube and the contact of being located at insulation tube top, in insulation tube, be provided with the current rectifying and wave filtering circuit electrically connecting with contact, rectification filter circuit output end is in series with a component piezoresistance successively, the tube wall of insulation tube is provided with one group of pilot hole, and the linkage section between every two adjacent divider resistances is all successively corresponding to a pilot hole; Control enclosure top and bottom is provided with the through hole of perforation, is provided with retainer spring in control enclosure, and insulation tube is located in through hole and is connected with control enclosure with the cooperation of pilot hole by retainer spring; In control enclosure, be provided with four-operational amplifier, constant voltage dc source is powered to four-operational amplifier by gauge tap, one end of retainer spring and the linkage section between divider resistance join, the other end is connected with first group of anodal 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 the first light emitting diode of being located at control enclosure 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 second group of anodal input of gauge tap 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 the second light emitting diode of being located at control enclosure box face.
3. a kind of high voltage testing device according to claim 1 and 2, it is characterized in that, one end that described retainer spring connects four-operational amplifier is also connected with the 3rd group of anodal input of four-operational amplifier, the 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 the hummer of being located at control enclosure box face.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100929.7U CN203849318U (en) | 2014-03-07 | 2014-03-07 | High-voltage electroscope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420100929.7U CN203849318U (en) | 2014-03-07 | 2014-03-07 | High-voltage electroscope |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203849318U true CN203849318U (en) | 2014-09-24 |
Family
ID=51562319
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420100929.7U Withdrawn - After Issue CN203849318U (en) | 2014-03-07 | 2014-03-07 | High-voltage electroscope |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203849318U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809013A (en) * | 2014-03-07 | 2014-05-21 | 吴延书 | High voltage electricity verification device |
-
2014
- 2014-03-07 CN CN201420100929.7U patent/CN203849318U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103809013A (en) * | 2014-03-07 | 2014-05-21 | 吴延书 | High voltage electricity verification device |
| CN103809013B (en) * | 2014-03-07 | 2016-06-29 | 吴延书 | A kind of high voltage testing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140924 Effective date of abandoning: 20160629 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |