CN100384043C - Protector of leakage and electricity steal - Google Patents
Protector of leakage and electricity steal Download PDFInfo
- Publication number
- CN100384043C CN100384043C CNB2005100445114A CN200510044511A CN100384043C CN 100384043 C CN100384043 C CN 100384043C CN B2005100445114 A CNB2005100445114 A CN B2005100445114A CN 200510044511 A CN200510044511 A CN 200510044511A CN 100384043 C CN100384043 C CN 100384043C
- Authority
- CN
- China
- Prior art keywords
- optocoupler
- connects
- controllable silicon
- pin
- circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005611 electricity Effects 0.000 title abstract description 8
- 230000001012 protector Effects 0.000 title abstract 2
- 239000003990 capacitor Substances 0.000 claims abstract description 16
- 230000000087 stabilizing effect Effects 0.000 claims abstract description 10
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 47
- 229910052710 silicon Inorganic materials 0.000 claims description 43
- 239000010703 silicon Substances 0.000 claims description 43
- 230000001681 protective effect Effects 0.000 claims description 10
- 230000001131 transforming effect Effects 0.000 claims description 6
- 230000007935 neutral effect Effects 0.000 claims description 3
- 230000002457 bidirectional effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 abstract 4
- 238000010168 coupling process Methods 0.000 abstract 4
- 238000005859 coupling reaction Methods 0.000 abstract 4
- 230000003287 optical effect Effects 0.000 abstract 4
- 230000006698 induction Effects 0.000 abstract 3
- 230000009466 transformation Effects 0.000 abstract 2
- 230000002265 prevention Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006837 decompression Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 230000007306 turnover Effects 0.000 description 1
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The present invention relates to an electric larceny and leakage preventing protector which relates to the technical field of electric larceny and leakage protection. The present invention is composed of a power supply transformation circuit, a signal pick-up and amplifying circuit, and an electric larceny and leakage preventing control and executive circuit, wherein the power supply transformation circuit comprises a capacitor C1, a resistor R1, a rectifying bridge D1, an electrolytic capacitor C4 and a voltage stabilizing tube D4; the signal pick-up and amplifying circuit comprises a mutual inductor, a diode D2 and a triode T1; the electric larceny and leakage preventing control and executive circuit comprises an integrated block '555' and an optical coupling connected with the integrated block '555'; the optical coupling is connected with a bidirectional thyristor and an on-resistor for the thyristor; a resistor R2 and capacitors C2 and C3 connected with the '555' provide delay conduction for the optical coupling. When the conditions of electric larceny and leakage occur, an induction coil of the mutual inductor generates induction current which is finally stopped by the optical coupling after passing through the diode D2, the triode T1 and the '555' so that the thyristor stops the induction current and a line stops supplying electricity so as to achieve the purposes of electric larceny and leakage prevention. The present invention is suitable for single-phase circuits and three-phase four-wire system circuits, has simple line, and is suitable for popularization.
Description
Technical field
The present invention relates to stealing electric leakage protection technology field, specifically be a kind of anti-electricity-theft and the electric leakage protective device.
Background technology
The social now electric form of popular robber that, back-pressure, anti-stream, notes pressure, step-down, the phase failure make ammeter can not form loop etc., can make ammeter counter-rotating, slow-speed, i.e. and stall reaches the purpose of its robber's electricity.To get up to be reacted to what may occur on the circuit be two kinds of situations but conclude: can make 1, that the total imbalance of electric current turnover reaches the stealing purpose in the circuit; 2, can make voltage decompression in the circuit, reach and steal electric purpose.The internal wiring complexity that existing anti-electricity-theft protective device has, civilian two electricity that only are applicable to that have promptly connect single-phase ammeter, function singleness.
Summary of the invention
In order to overcome the shortcoming that above-mentioned prior art exists, the purpose of this invention is to provide a kind of simple in structure and not only be applicable to single phase circuit but also can be used for the anti-electricity-theft of three-phase circuit and the protective device of electric leakage.
Technical scheme of the present invention is: a kind of anti-electricity-theft and the electric leakage protective device, form by power supply transforming circuit, picking up signal and amplifying circuit, thief-proof electric leakage control and executive circuit, it is characterized in that: first capacitor C 1 and a termination live wire after first resistance R 1 is in parallel in the power supply transforming circuit, the other end connects first contact of rectifier bridge D1, the second contact connecting to neutral line of rectifier bridge D1, the second electrochemical capacitor C4 in parallel, voltage stabilizing didoe D4 between the 3rd, the 4th contact of rectifier bridge D1; The end of mutual inductor coil L connects the emitter of triode T1 in picking up signal and the amplifying circuit, and connects the anode of voltage stabilizing didoe D4, the anode of another terminating diode D2 of mutual inductor coil L, and the negative electrode of diode D2 connects the base stage of triode T1; First pin one of " 555 " chip connects the emitter of triode T1 in thief-proof electric leakage control and the executive circuit, second pin two connects the collector electrode of triode T1, three-prong 3, the 4th pin 4 connects optocoupler two respectively, optocoupler one, the 5th pin 5 connects second capacitor C 3, the other end ground connection of second capacitor C 3, the 6th pin 6, connect an end of second resistance R 2 behind the 7th pin 7 short circuits and connect the positive pole of the first electrochemical capacitor C2, another termination the 8th pin 8 of second resistance R 2, the 8th pin 8, the 4th pin 4 short circuits, the 8th pin 8 connects the negative electrode of voltage stabilizing didoe D4, the minus earth of the first electrochemical capacitor C2; Optocoupler 1 ' connection is serially connected in the gate pole of the first controllable silicon G1 on the zero line, optocoupler 1 ' and the anode of the first controllable silicon G1 between be connected to the first controllable silicon conducting resistance R3, optocoupler 22 ' connection is serially connected in the grid of the second controllable silicon G2 on the live wire, optocoupler 22 ' with the anode of the second controllable silicon G2 between be connected the second controllable silicon conducting resistance R4; Mutual inductor coil L is on toroidal core, and described live wire, zero line are by passing in the magnetic core.
Described live wire is three, connect between two optocouplers that connect on " 555 " chip optocoupler 33 ', optocoupler 44 ', the gate pole of optocoupler 33 ' connection the 3rd controllable silicon G3, the 3rd controllable silicon G3 is serially connected on second live wire, and the 3rd controllable silicon conducting resistance R5 is serially connected with between optocoupler the three, the 3rd silicon controlled anode; The gate pole of optocoupler 44 ' connection the 4th controllable silicon G4, the 4th controllable silicon is serially connected on the 3rd live wire, and the 4th controllable silicon conducting resistance R6 is serially connected with between optocoupler the four, the 4th silicon controlled anode.
Serial connection one light-emitting diode between the three-prong 3 connected optocouplers one of " 555 " chip.
When no stealing leaky takes place, the operating voltage that power supply provides 5V for " 555 " chip, the 4th pin 4 of " 555 " chip is exported high level at this moment, three-prong 3 output low levels, the conducting of the bright expression series connection of light-emitting diode optocoupler, circuit normally send.When the stealing electric leakage takes place, at this moment, mutual inductor coil L produces an induced current, send into the base stage of triode T1 amplifies through diode D2 rectification, and the collector electrode that makes T1 produces a low level, and the three-prong 3 of " 555 " chip will be exported a high level, optocoupler is by obstructed at this moment, and the voltage on R3, the R4 is zero, and two controllable silicons end, circuit stops to send, this moment, the induced current of mutual inductor coil L disappeared, and circuit recovers to send electricity after several seconds, was also carrying out as the stealing electric leakage, circuit can have a power failure again, recovers normal up to circuit.
The invention has the beneficial effects as follows: it both had been applicable to that single phase circuit also was applicable to three-phase four-line system, and was anti-electricity-theft, electric leakage is satisfactory for result, and circuit is simple, is suitable for promoting.
Figure of description
Fig. 1 is the protective device circuit theory diagrams of thief-proof and leakance electricity in the single phase circuit;
Fig. 2 be in the three-phase four-line system anti-electricity-theft and the electric leakage the protective device circuit theory diagrams.
Embodiment
As shown in Figure 1, it is made up of power supply transforming circuit, picking up signal and amplifying circuit, thief-proof electric leakage control and executive circuit, first capacitor C 1 and a termination live wire after first resistance R 1 is in parallel in the power supply transforming circuit, the other end connects first contact of rectifier bridge D1, the second contact connecting to neutral line of rectifier bridge D1, the second electrochemical capacitor C4 in parallel, voltage stabilizing didoe D4 between the 3rd, the 4th contact of D1; The end of mutual inductor coil L connects the emitter of triode T1 in picking up signal and the amplifying circuit, and connects the anode of voltage stabilizing didoe D4, the anode of another terminating diode D2 of mutual inductor coil L, and the negative electrode of D2 connects the base stage of triode T1; 1 pin of " 555 " chip connects the emitter of triode T1 in thief-proof electric leakage control and the executive circuit, and " 555 " chip is a prior art, and personnel know in the present technique field; Second pin two of " 555 " chip connects the collector electrode of triode T1, three-prong 3, the 4th pin 4 connect respectively optocoupler 22 ', optocoupler 1 ', the 5th pin 5 connects second capacitor C 3, the other end ground connection of C3, connect an end of second resistance R 2 behind the 6th pin 6, the 7th pin 7 short circuits and connect the positive pole of the first electrochemical capacitor C2, another termination the 8th pin 8, the eight pins 8 of R2, the 4th pin 4 short circuits, the 8th pin 8 connects the negative electrode of voltage stabilizing didoe D4, the minus earth of C2; Optocoupler 1 ' connection is serially connected in the gate pole of the first controllable silicon G1 on the zero line, optocoupler 1 ' and the anode of G1 between be connected to the first controllable silicon conducting resistance R3, optocoupler 22 ' connection is serially connected in the gate pole of the second controllable silicon G2 on the live wire, optocoupler 22 ' with the anode of G2 between be connected the second controllable silicon conducting resistance R4, R3, R4 provide the conducting trigger voltage to bidirectional triode thyristor respectively; Mutual inductor coil L is on toroidal core, and described live wire, zero line are passed by the toroidal core mesopore.
During use, be connected with two kinds of forms as Fig. 1 and single-phase electric energy meter: the leading-out terminal of the end of incoming cables A termination single-phase electric energy meter of this device goes out the load of line segment B termination; Also can A termination line power, the load of B termination.
Its operation principle is as follows: when no stealing leaky takes place, the operating voltage that power supply provides 5V for " 555 " chip, the 4th pin 4 of " 555 " chip is exported high level, three-prong 3 output low levels at this moment, the conducting of the bright expression series connection of light-emitting diode D3 optocoupler, circuit normally send.When the stealing electric leakage takes place, at this moment, mutual inductor coil L produces an induced current, send into the base stage of triode T1 amplifies through diode D2 rectification, and the collector electrode that makes T1 produces a low level, and the three-prong 3 of " 555 " chip will be exported a high level, optocoupler is by obstructed at this moment, and the voltage on R3, the R4 is zero, and two controllable silicon G1, G2 end, circuit stops to send, this moment, the induced current of mutual inductor coil L disappeared, and circuit recovers to send electricity after several seconds, was also carrying out as the stealing electric leakage, circuit can have a power failure again, recovers normal up to circuit.Wherein recover to send the delay time of electricity to adjust by the size of regulating second resistance R, 2 resistances, when increasing the resistance of R2, it is elongated to delay time, and when reducing the resistance of R2 on the contrary, delay time shortens.
As shown in Figure 2, in the three-phase four-wire system circuit uses, with compare in the single phase circuit, increased by two optocouplers 3 ', 4 ' and corresponding controllable silicon G3, G4, controllable silicon conducting resistance R5, R6, its annexation is seen Fig. 2, the gate pole of optocoupler 33 ' connection the 3rd controllable silicon G3, the 3rd controllable silicon G3 is serially connected on second live wire, and the 3rd controllable silicon conducting resistance R5 is serially connected with between optocoupler the three, the 3rd silicon controlled anode; The gate pole of optocoupler 44 ' connection the 4th controllable silicon G4, the 4th controllable silicon is serially connected on the 3rd live wire, and the 4th controllable silicon conducting resistance R6 is serially connected with between optocoupler the four, the 4th silicon controlled anode.
When in three-phase four-line system, using, this device end of incoming cables leading-out terminal connected mode and the same single phase circuit of operation principle.
Claims (3)
- One kind anti-electricity-theft and the electric leakage protective device, form by power supply transforming circuit, picking up signal and amplifying circuit, thief-proof electric leakage control and executive circuit, it is characterized in that: first electric capacity (C1) and a termination live wire after first resistance (R1) is in parallel in the power supply transforming circuit, the other end connects first contact of rectifier bridge (D1), the second contact connecting to neutral line of rectifier bridge (D1), second electrochemical capacitor in parallel (C4), voltage stabilizing didoe (D4) between the 3rd, the 4th contact of rectifier bridge (D1); One end of mutual inductor coil in picking up signal and the amplifying circuit (L) connects the emitter of triode (T1), and connect the anode of voltage stabilizing didoe (D4), the anode of another terminating diode (D2) of mutual inductor coil (L), the negative electrode of diode (D2) connects the base stage of triode (T1); First pin (1) of " 555 " chip connects the emitter of triode (T1) in thief-proof electric leakage control and the executive circuit, second pin (2) connects the collector electrode of triode (T1), three-prong (3), the 4th pin (4) connects optocoupler two respectively, optocoupler one, the 5th pin (5) connects second electric capacity (C3), the other end ground connection of second electric capacity (C3), the 6th pin (6), connect an end of second resistance (R2) behind the 7th pin (7) short circuit and connect the positive pole of first electrochemical capacitor (C2), another termination the 8th pin (8) of second resistance (R2), the 8th pin (8), the 4th pin (4) short circuit, the 8th pin (8) connects the negative electrode of voltage stabilizing didoe (D4), the minus earth of first electrochemical capacitor (C2); Optocoupler one (1 ') connects the gate pole that is serially connected in first controllable silicon (G1) on the zero line, be connected to the first controllable silicon conducting resistance (R3) between the anode of optocoupler one (1 ') and first controllable silicon (G1), optocoupler two (2 ') connects the gate pole be serially connected in second controllable silicon (G2) on the live wire, is connected the second controllable silicon conducting resistance (R4) between the anode of optocoupler two (2 ') and second controllable silicon (G2); Mutual inductor coil (L) is on toroidal core, and described live wire, zero line are by passing in the magnetic core.
- 2. according to claim 1 a kind of anti-electricity-theft and the electric leakage protective device, it is characterized in that: described live wire is three, connect optocoupler three (3 '), optocoupler four (4 ') between two optocouplers that connect on " 555 " chip, optocoupler three (3 ') connects the gate pole of the 3rd controllable silicon (G3), the 3rd controllable silicon (G3) is serially connected on second live wire, and the 3rd controllable silicon conducting resistance (R5) is serially connected with between optocoupler the three, the 3rd silicon controlled anode; Optocoupler four (4 ') connects the gate pole of the 4th controllable silicon (G4), and the 4th controllable silicon is serially connected on the 3rd live wire, and the 4th controllable silicon conducting resistance (R6) is serially connected with between optocoupler the four, the 4th silicon controlled anode.
- 3. according to claim 1 and 2 a kind of anti-electricity-theft and the electric leakage protective device, it is characterized in that: between the connected optocoupler one of three-prong (3) of " 555 " chip the serial connection one light-emitting diode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445114A CN100384043C (en) | 2005-08-26 | 2005-08-26 | Protector of leakage and electricity steal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100445114A CN100384043C (en) | 2005-08-26 | 2005-08-26 | Protector of leakage and electricity steal |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1747271A CN1747271A (en) | 2006-03-15 |
| CN100384043C true CN100384043C (en) | 2008-04-23 |
Family
ID=36166656
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100445114A Expired - Fee Related CN100384043C (en) | 2005-08-26 | 2005-08-26 | Protector of leakage and electricity steal |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100384043C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103296637B (en) * | 2013-05-10 | 2016-04-13 | 国网山东省电力公司菏泽供电公司 | The anti-blank screen circuit of a kind of electric energy meter |
| CN107942129A (en) * | 2017-10-11 | 2018-04-20 | 杭州海兴电力科技股份有限公司 | Creepage detection method |
| CN109116176A (en) * | 2018-10-31 | 2019-01-01 | 国网山东省电力公司潍坊供电公司 | A kind of low-voltage leakage detection device and low-voltage leakage detection system |
| CN113311206A (en) * | 2021-05-31 | 2021-08-27 | 宁波迦南智能电气股份有限公司 | Method for realizing sampling, power supply or electricity stealing judgment by current transformer |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420721A (en) * | 1980-02-07 | 1983-12-13 | Sangamo Weston Limited | Electricity meters |
| CN2085967U (en) * | 1990-08-09 | 1991-10-02 | 曹世来 | Multipurpose protector for preventing fraudulent use and leakage of electricity |
| JP2000249730A (en) * | 1999-02-25 | 2000-09-14 | Ck Electronics Sdn Bhd | Improved power demand/supply meter and method |
-
2005
- 2005-08-26 CN CNB2005100445114A patent/CN100384043C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4420721A (en) * | 1980-02-07 | 1983-12-13 | Sangamo Weston Limited | Electricity meters |
| CN2085967U (en) * | 1990-08-09 | 1991-10-02 | 曹世来 | Multipurpose protector for preventing fraudulent use and leakage of electricity |
| JP2000249730A (en) * | 1999-02-25 | 2000-09-14 | Ck Electronics Sdn Bhd | Improved power demand/supply meter and method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1747271A (en) | 2006-03-15 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101697430B (en) | Power control method based CT electricity getting device of high voltage transmission line | |
| CN103326325A (en) | Short-circuit and low-voltage protective circuit of output of switching power source | |
| CN103166175B (en) | LED drive power protection circuit against input over-voltage | |
| CN100384043C (en) | Protector of leakage and electricity steal | |
| CN110212613A (en) | A kind of charge control switching circuit and charge control switching method | |
| CN104967326B (en) | A kind of single line constant current turns constant pressure electrical energy conversion circuit | |
| CN202818107U (en) | Power supply device based on power provided by ethernet | |
| CN206389350U (en) | A kind of light-coupled isolation communicating circuit | |
| CN206272229U (en) | For the reverse-connection preventing circuit of photovoltaic DC-to-AC converter direct current input side | |
| CN206379716U (en) | Electric automobile, onboard charger and its current foldback circuit | |
| CN106849296A (en) | A kind of charging module based on silicon carbide MOSFET | |
| CN1322651C (en) | Plug-and-play charger and its charge control method | |
| CN212875483U (en) | CT power supply | |
| CN112104022B (en) | CT power taking power supply | |
| CN206559119U (en) | A kind of battery MPPT charging circuits of photovoltaic off-grid system | |
| CN206547018U (en) | A kind of charging module based on silicon carbide MOSFET | |
| CN204794684U (en) | Electric current bypass and CCCV main circuit of constant voltage circuit are changeed in single line constant current | |
| CN203205828U (en) | LED driving power supply input overvoltage protection circuit | |
| CN203312774U (en) | Short-circuit and low-voltage protective circuit of output of switching power source | |
| CN113224802A (en) | Ground wire energy taking and storing device and method based on electromagnetic induction | |
| CN202679330U (en) | Synchronous pulse control circuit preventing fault of MCU and driver IC | |
| CN207166127U (en) | Alternating-current charging pile intelligent electric energy meter Switching Power Supply | |
| CN106199295A (en) | Ageing control system is filled in a kind of series connection soon | |
| CN106100128A (en) | Active power distribution network intelligent terminal's accumulator isolation monitoring device | |
| CN206962426U (en) | A kind of device for suppressing photovoltaic module PID effects |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Li Ming Document name: Notification that Application Deemed not to be Proposed |
|
| ASS | Succession or assignment of patent right |
Owner name: STATE GRID CORPORATION OF CHINA Effective date: 20140630 Owner name: HEZE POWER SUPPLY COMPANY STATE GRID SHANDONG ELEC Free format text: FORMER OWNER: LI MING Effective date: 20140630 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20140630 Address after: 274000 Shandong city in Heze Province, the road on the north side (opposite bank) Patentee after: Heze Power Supply Company, State Grid Shandong Electric Power Co., Ltd. Patentee after: State Grid Corporation of China Address before: 274000, Shandong City, Heze Peony Road, Xi'an Road, No. 159 technical school Patentee before: Li Ming |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080423 Termination date: 20170826 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |