CN103713233A - Low-voltage distribution subcircuit identifying device - Google Patents
Low-voltage distribution subcircuit identifying device Download PDFInfo
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- CN103713233A CN103713233A CN201410001875.3A CN201410001875A CN103713233A CN 103713233 A CN103713233 A CN 103713233A CN 201410001875 A CN201410001875 A CN 201410001875A CN 103713233 A CN103713233 A CN 103713233A
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- resistance
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- voltage distribution
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- triode
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Abstract
The invention relates to a low-voltage distribution subcircuit identifying device which is characterized by comprising a switch triode (T), wherein the base electrode of the switch triode (T) is connected with a second resistor (R2) in series and then is connected with a first testing end (T1), a second testing end (T2) is directly connected with the positive electrode of a direct-current power supply, the emitting electrode of the switch triode (T) is directly connected with the positive electrode of the direct-current power supply, and the collector electrode of the switch triode (T) is connected with the negative electrode of the direct-current power supply through a fourth resistor (R4) and a battery main switch (K) which are connected with the switch triode (T) in series. The device further comprises a fifth resistor (R5) and a red light emitting diode (Dr), wherein the fifth resistor (R5) and the red light emitting diode (Dr) are connected in series and then connected with the fourth resistor (R4) in parallel. The low-voltage distribution subcircuit identifying device can be connected to the two ends of a load in parallel to judge whether the electric equipment passes through an electric energy meter according to light indications of the device.
Description
Technical field
The present invention relates to a kind of low-voltage distribution branch road identification device.
Background technology
In 220V low-voltage equipment power utility check, find to utilize the situation of contactor stealing, specifically: contactor coil process electric energy meter, its contact are around getting over electric power meter; When disconnecting the total power switch of electric energy meter outlet, contactor coil loses excitation, and contactor contact disconnects load; By long-term follow, observe, payload and monthly electric weight are not inconsistent, and because service wire is that concealed wire is installed and room is all fitted up, are difficult for judgement and check, cannot collect evidence, to power utility check, bring very large difficulty, cause power loss.
Summary of the invention
The object of this invention is to provide a kind of low-voltage distribution branch road identification device, can judge whether consumer has passed through electric energy meter.
A kind of low-voltage distribution branch road identification device, its special feature is: comprise switch triode, the base stage of this switch triode connects the first test lead after connecting with the second resistance, and the second test lead directly connects a DC power anode, the emitter of aforementioned switches triode directly connects this DC power anode, and its collector connects this DC power cathode by the 4th resistance and the installation's power source master switch of connecting; Also comprise the 5th resistance and red light emitting diodes, these both in parallel with aforementioned the 4th resistance after connecting, and the 6th resistance and green LED, these both connect after its two ends be connected with collector, the DC power anode of aforementioned switches triode respectively; Also comprise the 3rd resistance and the first diode, these both connect after its two ends be connected with the second resistance, installation's power source master switch respectively.
Wherein between the second test lead and the second resistance, be in series with the first resistance and the second button.
Wherein between the first test lead and the second resistance, be in series with white light-emitting diode and the 7th resistance, and be also parallel with the first button at the two ends of this white light-emitting diode and the 7th resistance.
The invention provides a kind of low-voltage distribution branch road identification device, by this device access in parallel load two ends, according to device lamplight pointing, can judge whether this consumer has passed through electric energy meter, and this apparatus structure is simple, easy to use, with low cost.In device circuit of the present invention, only adopt the common components such as resistance, electric capacity, triode, diode, easily realization, simple in structure, cheap.
Accompanying drawing explanation
Accompanying drawing 1 is circuit theory diagrams of the present invention.
Embodiment
As shown in Figure 1, the present invention is a kind of low-voltage distribution branch road identification device, comprise switch triode T, the base stage of this switch triode T meets the first test lead T1 after connecting with the second resistance R 2, and the second test lead T2 directly connects a DC power anode, the emitter of aforementioned switches triode T directly connects this DC power anode, and its collector connects this DC power cathode by the 4th resistance R 4 and the installation's power source master switch K connecting; Also comprise the 5th resistance R 5 and red light emitting diodes Dr, these both in parallel with aforementioned the 4th resistance R 4 after connecting, and the 6th resistance R 6 and green LED Dg, these both connect after its two ends be connected with collector, the DC power anode of aforementioned switches triode T respectively; Also comprise the 3rd resistance R 3 and the first diode D1, these both connect after its two ends be connected with the second resistance R 2, installation's power source master switch K respectively; Yellow light-emitting diode D4 and the 6th resistance R 6, power supply E are connected on a bit upper, and the other end is connected on the one-level of charge port.
Wherein between the second test lead T2 and the second resistance R 2, be in series with the first resistance R 1 and the second button AN2, between the first test lead T1 and the second resistance R 2, be in series with in addition white light-emitting diode Dw and the 7th resistance R 7, and be also parallel with the first button AN1 at the two ends of this white light-emitting diode Dw and the 7th resistance R 7.
Working power in apparatus of the present invention adopts 3-3.7V direct supply as working power, the first diode D1 is buck diode, thereby the 3rd resistance R 3 is 5.0 Ω, the first resistance R 1, be, after 4.8 Ω connect the second button AN2, to keep red light emitting diodes Dr to light.Components and parts are pressed the schematic diagram wiring of accompanying drawing 1.
The principle of work of apparatus of the present invention is as follows:
Working power in apparatus of the present invention adopts 3-3.7V direct supply as working power, and the first diode D1 is buck diode, and the 3rd resistance R 3 is 5.0 Ω; Triode T saturation conduction after the installation's power source K switch of closing, red light emitting diodes Dg conducting is lighted; Between the first test lead T1 and the second test lead T2, meet access 4.8 Ω resistance (determining according to the 8th of < < power supply and business rules > >), press the first button AN1, after connection, red light emitting diodes Dr should keep lighting constant; The first test lead T1 and the second test lead T2 short circuit, press the first button AN1, after connection, and triode T cut-off, green LED Dg conducting is lighted.Components and parts are pressed accompanying drawing 1 wiring.
The branch road of differentiating must carry out under power down mode, first disconnect the total power switch of electric energy meter, the first test lead T1 of input end test pencil and the second test lead T2 are connected across the branch road load switch power side that will differentiate, carry out electrical verification, branch road has voltage, white light-emitting diode Dw conducting is lighted, and this branch road, must this device of shut-down operation directly around having got over electric energy meter.
If branch road no-voltage, not conducting of white light-emitting diode Dw is not lighted, in the total power switch load-side of its electric energy meter by ABCN line shorting stub short circuit, the first test lead T1 and the second test lead T2 of input end test pencil are connected across the branch road that will differentiate, installation's power source master switch K closes, the first test lead T1 of input end test pencil and the second test lead T2 are equivalent to open circuit, switch triode T saturation conduction, red light emitting diodes Dr conducting, red light is lighted, now press the first button AN1, red light emitting diodes Dr keeps conducting to light, illustrate this branch road by contacts of contactor around having got over electric energy meter, there is stealing electricity phenomenon, if otherwise pressing the first button AN1, the first test lead T1 and the second test lead T2 of input end test pencil are equivalent to short circuit, switch triode T saturation conduction, red light emitting diodes Dr cut-off does not work, green LED Dg conducting, green light is lighted, and this branch road is around getting over electric energy meter.
Claims (3)
1. a low-voltage distribution branch road identification device, it is characterized in that: comprise switch triode (T), the base stage of this switch triode (T) connects the first test lead (T1) after connecting with the second resistance (R2), and the second test lead (T2) directly connects a DC power anode, the emitter of aforementioned switches triode (T) directly connects this DC power anode, and its collector connects this DC power cathode by the 4th resistance (R4) and the installation's power source master switch (K) of connecting; Also comprise the 5th resistance (R5) and red light emitting diodes (Dr), these both in parallel with aforementioned the 4th resistance (R4) after connecting, and the 6th resistance (R6) and green LED (Dg), these both connect after its two ends be connected with collector, the DC power anode of aforementioned switches triode (T) respectively; Also comprise the 3rd resistance (R3) and the first diode (D1), these both connect after its two ends be connected with the second resistance (R2), installation's power source master switch (K) respectively.
2. low-voltage distribution branch road identification device as claimed in claim 1, is characterized in that: wherein between the second test lead (T2) and the second resistance (R2), be in series with the first resistance (R1) and the second button (AN2).
3. low-voltage distribution branch road identification device as claimed in claim 1 or 2, it is characterized in that: wherein between the first test lead (T1) and the second resistance (R2), be in series with white light-emitting diode (Dw) and the 7th resistance (R7), and be also parallel with the first button (AN1) at the two ends of this white light-emitting diode (Dw) and the 7th resistance (R7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410001875.3A CN103713233B (en) | 2013-12-18 | 2014-01-03 | Low-voltage distribution branch road identification device |
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310699769.2 | 2013-12-18 | ||
| CN201310699769 | 2013-12-18 | ||
| CN2013106997692 | 2013-12-18 | ||
| CN201410001875.3A CN103713233B (en) | 2013-12-18 | 2014-01-03 | Low-voltage distribution branch road identification device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103713233A true CN103713233A (en) | 2014-04-09 |
| CN103713233B CN103713233B (en) | 2016-09-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410001875.3A Expired - Fee Related CN103713233B (en) | 2013-12-18 | 2014-01-03 | Low-voltage distribution branch road identification device |
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| Country | Link |
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| CN (1) | CN103713233B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068243U (en) * | 1990-05-28 | 1990-12-26 | 林耀基 | Anti-stealing electricity one-phase alternating current kilowatt-hour meter |
| CN2125142U (en) * | 1992-06-20 | 1992-12-16 | 大连燕山开关厂 | Protector for avoiding electricity fraudulent use |
| CN2299349Y (en) * | 1997-03-20 | 1998-12-02 | 杨枫林 | Controller for preventing fraudulent use of electricity |
| JP2006023281A (en) * | 2004-06-08 | 2006-01-26 | Yoshio Inoue | Electricity-stealing sensing method and integrating wattmeter |
| CN1752762A (en) * | 2005-10-18 | 2006-03-29 | 广东珠江开关有限公司 | Prediagnosis device of electric power equipment on line failure |
| CN203688712U (en) * | 2013-12-18 | 2014-07-02 | 国家电网公司 | Low-voltage power distribution branch identification device |
-
2014
- 2014-01-03 CN CN201410001875.3A patent/CN103713233B/en not_active Expired - Fee Related
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2068243U (en) * | 1990-05-28 | 1990-12-26 | 林耀基 | Anti-stealing electricity one-phase alternating current kilowatt-hour meter |
| CN2125142U (en) * | 1992-06-20 | 1992-12-16 | 大连燕山开关厂 | Protector for avoiding electricity fraudulent use |
| CN2299349Y (en) * | 1997-03-20 | 1998-12-02 | 杨枫林 | Controller for preventing fraudulent use of electricity |
| JP2006023281A (en) * | 2004-06-08 | 2006-01-26 | Yoshio Inoue | Electricity-stealing sensing method and integrating wattmeter |
| CN1752762A (en) * | 2005-10-18 | 2006-03-29 | 广东珠江开关有限公司 | Prediagnosis device of electric power equipment on line failure |
| CN203688712U (en) * | 2013-12-18 | 2014-07-02 | 国家电网公司 | Low-voltage power distribution branch identification device |
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| Publication number | Publication date |
|---|---|
| CN103713233B (en) | 2016-09-14 |
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| C14 | Grant of patent or utility model | ||
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
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Granted publication date: 20160914 Termination date: 20170103 |