CN204789851U - Measurement secondary circuit wiring intelligent test appearance - Google Patents
Measurement secondary circuit wiring intelligent test appearance Download PDFInfo
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- CN204789851U CN204789851U CN201520507285.8U CN201520507285U CN204789851U CN 204789851 U CN204789851 U CN 204789851U CN 201520507285 U CN201520507285 U CN 201520507285U CN 204789851 U CN204789851 U CN 204789851U
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- charging capacitor
- mutual inductor
- chip microcomputer
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- 238000012360 testing method Methods 0.000 title claims abstract description 25
- 238000005259 measurement Methods 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 claims abstract description 65
- 238000001514 detection method Methods 0.000 abstract description 8
- 230000005611 electricity Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 3
- 230000010354 integration Effects 0.000 abstract 1
- 230000006698 induction Effects 0.000 description 12
- 230000006870 function Effects 0.000 description 10
- 238000004020 luminiscence type Methods 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 230000004397 blinking Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001939 inductive effect Effects 0.000 description 2
- 230000000541 pulsatile effect Effects 0.000 description 2
- 230000000087 stabilizing effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
- 230000016776 visual perception Effects 0.000 description 1
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- Testing Electric Properties And Detecting Electric Faults (AREA)
Abstract
The utility model discloses a measurement secondary circuit wiring intelligent test appearance, including the pulse signal device, the output passing signal line electricity of pulse signal device be connected with can side of centre gripping mutual -inductor the signal press from both sides, still including pressing from both sides with the output of mutual -inductor secondary side terminal centre gripping complex, two outputs are pressed from both sides has a charging capacitor through the output line is parallelly connected, the charging capacitor is anodal to have concatenated unidirectional diode with corresponding between the output line, anodal and the microcontroller type of charging capacitor hold electric the connection, singlechip output electricity is connected with the alarm. The advantage effect is: it is rational in infrastructure, can assist the completion to detect the wiring of the automatically controlled cabinet mutual -inductor of integration, easy operation, it is convenient to detect, and labour saving and time saving can the snap judgments testing result, and just alone can operate, helps improving detection efficiency.
Description
Technical field
The utility model relates to metering secondary wiring intelligent tester.
Background technology
Current 10kV power distribution cabinet generally adopts integrated design, mutual inductor and second loop return wiring thereof when equipment dispatches from the factory mounting arrangements in cabinet, this greatly facilitates the installation exercise of metering, but occurs the situation of mutual inductor error-polarity connection or secondary connection mistake sometimes.Because secondary connection layout is concealed, is difficult to by direct visual perception, in order to ensure metering accuracy, must verifies second loop return wiring.
Due to not to the special utility appliance that second loop return wiring is verified, the classic method that electric power commissioning staff uses is " break-make method surveyed by multimeter ", namely utilize multimeter to survey break-make gear and test secondary line one by one, thus distinguish mutual inductor side and electric energy meter side whether corresponding, whether wiring correct.
Classic method has following shortcoming and defect:
1, because mutual inductor inside is communicated with, therefore classic method needs to take mutual inductor secondary connection apart, also needs reconnection after verification, increases unnecessary trouble.
2, mutual inductor is installed to inside cabinet baffle plate, not easily touches, and test inconvenience, wastes time and energy.
3, pen meter of universal meter p-wire limited length, cannot directly be communicated with secondary connection both sides, needs the wire of extra sufficient length to form loop.
4, pen meter of universal meter is needle-like design, people must be had by test pencil by being pressed on second loop return wiring terminal when testing, power distribution cabinet for narrow space a people can only operate a test pencil, and therefore need at least two people to complete test job, work efficiency is lower.
Summary of the invention
The technical problems to be solved in the utility model provides a kind of rational in infrastructure for above-mentioned deficiency, can assist and the wiring of integrated electric cabinet mutual inductor has been detected, simple to operate, easy to detect, time saving and energy saving, can judge testing result fast, and a people just can operate, contribute to the metering secondary wiring intelligent tester improving detection efficiency.
For solving the problems of the technologies described above, this metering secondary wiring intelligent tester comprises pulse signal device, the output terminal of pulse signal device is electrically connected with the signal folder that can clamp mutual inductor primary side terminal by signal wire, also comprise and can clamp with mutual inductor secondary side terminal the output coordinated and press from both sides, two export folder is parallel with charging capacitor by output line, unilateral diode is serially connected with between charging capacitor positive pole and corresponding output line, the positive pole of charging capacitor is electrically connected with single-chip microcomputer input end, and single-chip microcomputer output terminal is electrically connected with alarm.
This metering secondary wiring intelligent tester realizes having assisted the wiring to integrated electric cabinet mutual inductor to detect by clipping pulse induction structure, simple to operate, easy to detect, time saving and energy saving, testing result can be judged fast, and a people just can operate, contribute to raising detection efficiency.
Clipping pulse induction structure is mainly arranged on the pulse signal device of mutual inductor primary side and is arranged on the induction test circuit of mutual inductor secondary side, wherein, the Main Function of pulse signal device produces pulse signal, pulse signal device output terminal is electrically connected with mutual inductor primary side terminal by signal wire, so just can continue to send pulse signal to mutual inductor primary side terminal.The principle of work of this patent is, mutual inductor is only responded to the electric current of change and changes, and therefore after mutual inductor primary side adds pulse signal, can obtain switching current at mutual inductor secondary side.Because mutual inductor has polarity, once or secondary connection just connect or reversal connection time, the inductive current direction that secondary circuit produces is different, therefore by judging that the faradic direction of secondary circuit can judge mutual inductor interstar connection correctness.This patent also comprises and can clamp two of coordinating with mutual inductor secondary side terminal and export and press from both sides, and exports folder and is connected in parallel on charging capacitor two ends by output line.For convenience of describing, by the output line be electrically connected with charging capacitor positive pole with exports folder and be called that positive output line and positive output are pressed from both sides or positive pole output line and positive pole export and press from both sides, by the output line be connected with charging capacitor negative electricity with export folder and be called that negative output line and negative output are pressed from both sides or negative pole output line and negative pole export and press from both sides.Also be serially connected with unilateral diode between positive pole output line and charging capacitor positive pole, the positive pole of unilateral diode is electrically connected with positive pole output line, and the negative pole of unilateral diode is electrically connected with the positive pole of charging capacitor.The Main Function of unilateral diode be utilize self unilateral conduction to transformer induced go out the flow direction of current signal control.Specifically, when induction current flows to charging capacitor negative pole, unilateral diode ends, and makes the charging that induction current can not realize charging capacitor, therefore charging capacitor does not exist any electric signal.When induction current flows to charging capacitor positive pole, unilateral diode conducting, induction current charges to charging capacitor.Pulse signal device sends pulsatile once signal to mutual inductor, and charging capacitor just accumulates certain charging charge.Utilize charging capacitor to preserve the ability of electric charge, secondary side weak current is accumulated and converts metastable voltage in a period of time to.Therefore the duration of charging is longer, and charging capacitor both end voltage is also higher.In this patent, the positive pole of charging capacitor is electrically connected with single-chip microcomputer input end, and single-chip microcomputer output terminal is electrically connected with alarm.Single-chip microcomputer constantly can gather charging capacitor signal, and when charging capacitor magnitude of voltage reaches setting range, not only the alarm of single-chip microcomputer meeting drive output is reported to the police, and such testing staff just can know the wiring correctness of mutual inductor, directly perceived but also facilitate.
No matter this patent is be connected with mutual inductor primary side terminal, or be connected with mutual inductor secondary side terminal, all that the mode being pressed from both sides and export folder clamping by signal is realized, avoid in traditional detection method the drawback needing testing staff always to keep pressed state with hand, not only operate simpler, and time saving and energy saving, a people can operate, and substantially increases detection efficiency.
As a kind of implementation, described pulse signal device comprises housing, is provided with main battery in housing, is in series with main resistor and pulse switch between main battery positive pole and a signal wire of correspondence, and main battery negative pole is electrically connected with another corresponding root signal wire.
This pulse signal device is by pulse switch closed moment, and main battery provides a power supply signal grown out of nothing to simulate or produce pulse signal to mutual inductor primary side terminal.Pulse switch is closed once, just produces a pulse signal, therefore tester can according to actual condition freely determine supply pulse signal number, very convenient.The main resistor being arranged on main battery positive pole mainly plays metering function, excessive to avoid mutual inductor primary side dash current, serves the effect of protection mutual inductor.
As a kind of preferred implementation, described alarm comprises green light and red light, and green light is connected in series the green light branch road formed by Single-chip Controlling luminescence with green light resistance, and red light is connected in series the red light branch road formed by Single-chip Controlling luminescence with red light resistance.
When mutual inductor primary side and secondary side wiring correct time, charging capacitor can to single-chip microcomputer send one on the occasion of voltage signal, now single-chip microcomputer can control the work of green light branch road, also namely controls green light flashing, to point out staff's wiring correct.Green light resistance mainly do with being current limliting, to make green light working properly.On the contrary, when mutual inductor primary side and secondary side wiring error, charging capacitor can not charge, single-chip microcomputer from charging capacitor do not collect one on the occasion of voltage signal, or gather the negative voltage signal that a numerical value is less, now single-chip microcomputer can control the work of red light branch road, also namely controls blinking red lamp luminous, to point out staff wiring error.Red light resistance mainly do with being current limliting, to make red light working properly.By the instruction of red light and green light, staff can judge wiring correctness very intuitively, makes testing more time saving and energy saving.
As improvement, output line two ends are parallel with amplitude limit stabilivolt.
The Main Function of amplitude limit stabilivolt carries out amplitude limit and voltage stabilizing to the electromotive force that mutual inductor secondary side terminal induces, also namely amplitude limit is carried out to the charging voltage of charging capacitor, charging capacitor and single-chip microcomputer input end can be made like this to match, fundamentally avoid and damage single-chip microcomputer because charging voltage is too high.
As further improvement, charging capacitor two ends are parallel with the discharge paths be connected in series by discharge resistance and discharge switch.
The Main Function of discharge paths discharges to charging capacitor, and charging capacitor can be made like this to recover electroless state and work of again charging.When needing electric discharge, only need close discharge switch, charging capacitor just forms discharge loop with discharge switch and discharge resistance, and the electric charge that such charging capacitor stores can be discharged by discharge resistance, operates very simple.
As improvement, single-chip microcomputer output terminal is also electrically connected with the loudspeaker playing test result voice.
Test result voice can be play to tester by loudspeaker, also very practical.Particularly when light is strong, the flicker of red light and green light will thicken, and voice broadcast will be more accurate and convenient.
In sum, adopt the metering secondary wiring intelligent tester of this structure, rational in infrastructure, can assist and the wiring of integrated electric cabinet mutual inductor has been detected, simple to operate, easy to detect, time saving and energy saving, can judge testing result fast, and a people just can operate, contribute to improving detection efficiency.
Accompanying drawing explanation
By reference to the accompanying drawings the utility model is described in further detail:
Fig. 1 is the structural representation of this patent;
Fig. 2 is the circuit theory diagrams of this patent.
Embodiment
As shown in the figure, this metering secondary wiring intelligent tester comprises pulse signal device 1, the output terminal of pulse signal device is electrically connected with the signal folder 4 that can clamp mutual inductor 3 primary side terminal by signal wire 2, also comprise and can clamp with mutual inductor secondary side terminal the output coordinated and press from both sides 5, two export folder is parallel with charging capacitor 7 by output line 6, unilateral diode 8 is serially connected with between charging capacitor positive pole and corresponding output line, the positive pole of charging capacitor is electrically connected with single-chip microcomputer 9 input end, and single-chip microcomputer output terminal is electrically connected with alarm.This metering secondary wiring intelligent tester mainly comprises the pulse signal device being arranged on mutual inductor primary side and the induction test circuit being arranged on mutual inductor secondary side, wherein, the Main Function of pulse signal device produces pulse signal, pulse signal device output terminal is electrically connected with mutual inductor primary side terminal by signal wire, so just can continue to send pulse signal to mutual inductor primary side terminal.The principle of work of this patent is, mutual inductor is only responded to the electric current of change and changes, and therefore after mutual inductor primary side adds pulse signal, can obtain switching current at mutual inductor secondary side.Because mutual inductor has polarity, once or secondary connection just connect or reversal connection time, the inductive current direction that secondary circuit produces is different, therefore by judging that the faradic direction of secondary circuit can judge mutual inductor interstar connection correctness.This patent also comprises and can clamp two of coordinating with mutual inductor secondary side terminal and export and press from both sides, and exports folder and is connected in parallel on charging capacitor two ends by output line.For convenience of describing, by the output line be electrically connected with charging capacitor positive pole with exports folder and be called that positive output line and positive output are pressed from both sides or positive pole output line and positive pole export and press from both sides, by the output line be connected with charging capacitor negative electricity with export folder and be called that negative output line and negative output are pressed from both sides or negative pole output line and negative pole export and press from both sides.Also be serially connected with unilateral diode between positive pole output line and charging capacitor positive pole, the positive pole of unilateral diode is electrically connected with positive pole output line, and the negative pole of unilateral diode is electrically connected with the positive pole of charging capacitor.The Main Function of unilateral diode be utilize self unilateral conduction to transformer induced go out the flow direction of current signal control.Specifically, when induction current flows to charging capacitor negative pole, unilateral diode ends, and makes the charging that induction current can not realize charging capacitor, therefore charging capacitor does not exist any electric signal.When induction current flows to charging capacitor positive pole, unilateral diode conducting, induction current charges to charging capacitor.Pulse signal device sends pulsatile once signal to mutual inductor, and charging capacitor just accumulates certain charging charge.Utilize charging capacitor to preserve the ability of electric charge, secondary side weak current is accumulated and converts metastable voltage in a period of time to.Therefore the duration of charging is longer, and charging capacitor both end voltage is also higher.In this patent, the positive pole of charging capacitor is electrically connected with single-chip microcomputer input end, and single-chip microcomputer output terminal is electrically connected with alarm.Single-chip microcomputer constantly can gather charging capacitor signal, and when charging capacitor magnitude of voltage reaches setting range, not only the alarm of single-chip microcomputer meeting drive output is reported to the police, and such testing staff just can know the wiring correctness of mutual inductor, directly perceived but also facilitate.
No matter this patent is be connected with mutual inductor primary side terminal, or be connected with mutual inductor secondary side terminal, all that the mode being pressed from both sides and export folder clamping by signal is realized, avoid in traditional detection method the drawback needing testing staff always to keep pressed state with hand, not only operate simpler, and time saving and energy saving, a people can operate, and substantially increases detection efficiency.
Described pulse signal device comprises housing 11, is provided with main battery 12 in housing, is in series with main resistor 13 and pulse switch 14 between main battery positive pole and a signal wire of correspondence, and main battery negative pole is electrically connected with another corresponding root signal wire.This pulse signal device is by pulse switch closed moment, and main battery provides a power supply signal grown out of nothing to simulate or produce pulse signal to mutual inductor primary side terminal.Pulse switch is closed once, just produces a pulse signal, therefore tester can according to actual condition freely determine supply pulse signal number, very convenient.The main resistor being arranged on main battery positive pole mainly plays metering function, excessive to avoid mutual inductor primary side dash current, serves the effect of protection mutual inductor.
Described alarm comprises green light 15 and red light 16, and green light is connected in series the green light branch road formed by Single-chip Controlling luminescence with green light resistance 17, and red light is connected in series the red light branch road formed by Single-chip Controlling luminescence with red light resistance 18.When mutual inductor primary side and secondary side wiring correct time, charging capacitor can to single-chip microcomputer send one on the occasion of voltage signal, now single-chip microcomputer can control the work of green light branch road, also namely controls green light flashing, to point out staff's wiring correct.Green light resistance mainly do with being current limliting, to make green light working properly.On the contrary, when mutual inductor primary side and secondary side wiring error, charging capacitor can not charge, single-chip microcomputer from charging capacitor do not collect one on the occasion of voltage signal, or gather the negative voltage signal that a numerical value is less, now single-chip microcomputer can control the work of red light branch road, also namely controls blinking red lamp luminous, to point out staff wiring error.Red light resistance mainly do with being current limliting, to make red light working properly.By the instruction of red light and green light, staff can judge wiring correctness very intuitively, makes testing more time saving and energy saving.
In this patent, output line two ends are parallel with amplitude limit stabilivolt 19.The Main Function of amplitude limit stabilivolt carries out amplitude limit and voltage stabilizing to the electromotive force that mutual inductor secondary side terminal induces, also namely amplitude limit is carried out to the charging voltage of charging capacitor, charging capacitor and single-chip microcomputer input end can be made like this to match, fundamentally avoid and damage single-chip microcomputer because charging voltage is too high.
Charging capacitor two ends are parallel with the discharge paths be connected in series by discharge resistance 20 and discharge switch 21.The Main Function of discharge paths discharges to charging capacitor, and charging capacitor can be made like this to recover electroless state and work of again charging.When needing electric discharge, only need close discharge switch, charging capacitor just forms discharge loop with discharge switch and discharge resistance, and the electric charge that such charging capacitor stores can be discharged by discharge resistance, operates very simple.
Single-chip microcomputer output terminal is also electrically connected with the loudspeaker 22 playing test result voice.Test result voice can be play to tester by loudspeaker, also very practical.Particularly when light is strong, the flicker of red light and green light will thicken, and voice broadcast will be more accurate and convenient.
Claims (6)
1. a metering secondary wiring intelligent tester, it is characterized in that: comprise pulse signal device (1), the output terminal of pulse signal device is electrically connected with signal folder (4) that can clamp mutual inductor (3) primary side terminal by signal wire (2), also comprise and can clamp with mutual inductor (3) secondary side terminal the output coordinated and press from both sides (5), two export folder (5) is parallel with charging capacitor (7) by output line (6), unilateral diode (8) is serially connected with between charging capacitor (7) positive pole and corresponding output line (6), the positive pole of charging capacitor (7) is electrically connected with single-chip microcomputer (9) input end, single-chip microcomputer (9) output terminal is electrically connected with alarm.
2. metering secondary wiring intelligent tester as claimed in claim 1, it is characterized in that: described pulse signal device (1) comprises housing (11), main battery (12) is provided with in housing (11), be in series with main resistor (13) and pulse switch (14) between main battery (12) positive pole and a corresponding signal wire (2), main battery (12) negative pole is electrically connected with another corresponding root signal wire (2).
3. metering secondary wiring intelligent tester as claimed in claim 2, it is characterized in that: described alarm comprises green light (15) and red light (16), green light (15) is connected in series with green light resistance (17) to form and controls luminous green light branch road by single-chip microcomputer (9), and red light (16) is connected in series with red light resistance (18) to form and controls luminous red light branch road by single-chip microcomputer (9).
4. metering secondary wiring intelligent tester as claimed in claim 3, is characterized in that: output line (6) two ends are parallel with amplitude limit stabilivolt (19).
5. the metering secondary wiring intelligent tester as described in claim as arbitrary in claim 1-4, is characterized in that: charging capacitor (7) two ends are parallel with the discharge paths be connected in series by discharge resistance (20) and discharge switch (21).
6. metering secondary wiring intelligent tester as claimed in claim 5, is characterized in that: single-chip microcomputer (9) output terminal is also electrically connected with the loudspeaker (22) playing test result voice.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520507285.8U CN204789851U (en) | 2015-07-14 | 2015-07-14 | Measurement secondary circuit wiring intelligent test appearance |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520507285.8U CN204789851U (en) | 2015-07-14 | 2015-07-14 | Measurement secondary circuit wiring intelligent test appearance |
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| Publication Number | Publication Date |
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| CN204789851U true CN204789851U (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520507285.8U Expired - Fee Related CN204789851U (en) | 2015-07-14 | 2015-07-14 | Measurement secondary circuit wiring intelligent test appearance |
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| Country | Link |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324411A (en) * | 2015-07-02 | 2017-01-11 | 国网山东省电力公司潍坊供电公司 | Intelligent tester for metering wiring of secondary circuit |
-
2015
- 2015-07-14 CN CN201520507285.8U patent/CN204789851U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106324411A (en) * | 2015-07-02 | 2017-01-11 | 国网山东省电力公司潍坊供电公司 | Intelligent tester for metering wiring of secondary circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20180714 |