CN101839926A - Single-phase three-in electric energy meter for resisting technical electricity larceny - Google Patents

Single-phase three-in electric energy meter for resisting technical electricity larceny Download PDF

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Publication number
CN101839926A
CN101839926A CN 201010151775 CN201010151775A CN101839926A CN 101839926 A CN101839926 A CN 101839926A CN 201010151775 CN201010151775 CN 201010151775 CN 201010151775 A CN201010151775 A CN 201010151775A CN 101839926 A CN101839926 A CN 101839926A
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China
Prior art keywords
electric energy
energy meter
relay
phase
signal relay
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CN 201010151775
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Inventor
章国胜
闵尊南
高社贤
车延鹏
戴勇
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Jiangxi Vocational and Technical College of Electricity
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Jiangxi Vocational and Technical College of Electricity
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Priority to CN 201010151775 priority Critical patent/CN101839926A/en
Publication of CN101839926A publication Critical patent/CN101839926A/en
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Abstract

The invention relates to a single-phase three-in electric energy meter for resisting technical electricity larceny, which fully solves the user problem of technical electricity larceny, avoids any meter dispute between a power supply enterprise and users and is convenient for the power supply enterprise to dispose the short-circuit-to-earth failures of indoor live wires of the users (a led-in live wire and a zero wire are exchanged, the indoor zero wire is short circuited to ground, and the electric energy meter does not meter more electricity). Inestimable economic benefits are brought to the power supply enterprise by the single-phase three-in electric energy meter, and the power supply enterprise needs to adopt reformed mounting and connecting technologies. A single-phase three-in two-out electric energy meter is mounted and connected by leading a ground wire in the electric energy meter (shown in figures 13 and 14), and a single-phase three-in one-out electric energy meter is mounted and connected by only providing an AC single-phase 220V live wire for users to use (shown in figures 15 and 18).

Description

Single-phase three-in electric energy meter for resisting technical electricity larceny
Technical field
The present invention relates to a kind of anti-electricity-theft electric energy meter.Particularly a kind of single-phase three-in electric energy meter for resisting technical electricity larceny.
Background technology
At present, single-phase electric energy meter is widely used in town dweller's household electricity metering, along with the numerous common people's of China educational level improves constantly, it is more and more to understand how single-phase electric energy meter measures the personnel of electric energy, add that stealing specialist has valency to betray the stealing technology, in the town dweller, continue to bring out out various high-tech stealing electricity method, the electric energy that makes power department provide runs off in vain, continuous passing along with the time, occurred a lot of multiple electric energy of stealing low voltage electric network under the prerequisite of motionless single-phase electric energy meter seal and power supply department attaching seal in a large number on the market, we claim that it is the technology stealing.
Single-phase electric energy list structure housing figure, as shown in Figure 1:
The induction type single-phase electric energy meter is made up of parts such as voltage component, current element, rotating disk, register, shell, four hole ramp boxes.Its electric hookup is as shown in Figure 2:
After by Fig. 2 circuit electric energy meter being inserted low voltage electric network, when output 2 and 4 terminations are gone into load, current coil flows through electric current, and on current ferric core, produce the current work magnetic flux, the current work magnetic flux passes rotating disk, and the voltage power supply magnetic flux that potential winding is produced during inductive loop on rotating disk forms an acting force, makes the direction rotation of electric energy meter rotating disk towards defined, dial rotation makes the register counting, thereby the record current coil flows through the electric energy that load current consumes.
The single-phase electric energy meter critical defect is analyzed:
1, during false wiring in the current coil no current by the time stealing analyze (to all single-phase electric energy meters)
We find out from Fig. 2, the current coil of having connected between the terminal box wiring 1 and 2, and 1 start to exchange fire line, 3 connecting to neutral lines during correct wiring, at this moment as long as output terminal 2 and 4 connects load, current coil will pass through electric current, and electric energy meter will correctly measure.
When electric energy meter attaching line as shown in Figure 3 or the stealing family have a mind to electric energy meter inlet wire 1 connecting to neutral line, 3 when starting to exchange fire line, a line one ground stealing electricity phenomenon will occur.
The stealing family utilizes between connection box of electric energy meter terminal 3 and 4 not that crosstalk streamline circle carries out the technology stealing, and the used electric energy of load r is stolen in vain.
2, false wiring utilizes the zero line line drop to make the counter-rotating of electric energy meter rotating disk analyze (to the induction type single-phase electric energy meter)
We know the peak electricity consumption phase, circuit two ends will produce pressure drop, when zero line inlet wire 1 terminal current potential exceeds some magnitudes of voltage, in zero line 2 terminal outlets with a switch ground connection, as shown in Figure 4, the rotating disk of electric energy meter former just change situation become suddenly counter-rotating to Electric energy meter KWh counter fall the sign indicating number (because of being far longer than the I1 load current in the I2 electric current, the I2 electric current is that its direction is opposite with the I1 direction because of the zero line pressure drop forms a current channel over the ground).
3, a family false wiring, (to all single-phase electric energy meters) analyzed in two family associating stealings
When a family (B family) advanced connection box of electric energy meter appearance mistake, live wire advanced 3 terminals, and zero line advances 1 terminal.Another family, two families (A family) connection box of electric energy meter is correct, this two families associating stealing circuit as shown in Figure 5:
The B family provides live wire to the A family, A family B family live wire and oneself zero line electricity consumption, and two household electrical appliances streamline circles all do not have the electric current of passing through; Opposite A family provides zero line to the B family, B family A family zero line and oneself live wire electricity consumption; Thereby reach two family associating stealings.
It mainly is to have utilized single-phase electric energy meter only at live wire branch road (1 terminal and the 2 terminals) current coil of having connected that the seal of above-mentioned three kinds of not broken power supply departments carries out the technology stealing, and zero line branch road (3 terminals and 4 terminals) no current detecting element, but zero line is again to introduce on the ground wire of substation transformer.The user needs only and looks for a ground wire nearby, and makes live wire avoid the current coil branch road, and promptly mistake is received electric energy meter 3 terminals, thereby forms the 220V power supply of live wire, ground wire composition, reaches the purpose of stealing electric energy.
4, (to all single-phase electric energy meters) analyzed in the potential winding of electric energy meter (loop) no-voltage stealing:
Electric energy meter potential winding (loop) no-voltage stealing principle as shown in Figure 6
The user is intended to make an issue of on the mains side zero line, middle having been cut off of zero line of promptly advancing electric energy meter forms falseness, increase a zero line gauge tap K in zero line output back simultaneously, the user connects electricity consumption with the zero line of load with ground, forms the power supply of a live wire and ground wire, opens the K pass when the control ground wire and is in off-state, though the electric energy meter current coil flows through electric current, but the effect of electric energy meter no-voltage, so electric energy meter can not measure, and the electrical network electric energy is stolen.When subscriber switch K was in closure, electric energy meter obtained voltage, as long as the electrical appliance electric energy meter just can correctly be measured, so every month metering electric degree of electric energy meter can be independently controlled at the stealing family.This stealing mode makes power supply department hard to guard against, is difficult to find its electricity filching behavior.
The single-phase electric energy meter inner structure is improved process:
Single-phase electric energy meter technology stealing analysis-by-synthesis is two kinds, and first kind is utilized false wiring to implement a fiery ground stealing, and second kind is that control electric energy meter decompression is implemented a fiery ground stealing.
1. prevent the electric energy meter failure of a fiery ground stealing:
Be a fiery ground stealing that prevents that false wiring from occurring, power supply enterprise and production electric energy meter enterprise used the ADE7761 electric energy computation chip in static electric energy meter in recent years, and at electric energy meter 3 and 4 terminals serial connection high precision current transformer, make electric energy meter have two cover current measuring elements, the ADE7761 electric energy computation chip selects the electric current of big current branch in electric energy meter 1 and 2 terminals branch roads and electric energy meter 3 and the 4 terminals branch roads to carry out electric energy metrical as metering current automatically, solves a fiery ground stealing.But control electric energy meter decompression is implemented a fiery ground stealing electricity phenomenon still not to be resolved (as shown in Figure 7).
Among Fig. 7 single-phase three goes out to prevent that technology stealing electric energy meter is exactly that single-phase three of our development is advanced two (one) and gone out electric energy meter (anti-technology stealing), and to appoint be the electric energy meter no-voltage to occur not export live wire in the 220V power supply to the one ground stealing of user's one line under correct and false wiring situation as long as its does not have.And an anti-line one ground stealing electric energy meter (ADE7761 electric energy computation chip) user's one line one ground stealing under the no-voltage situation of electric energy meter still can be carried out.
In addition, an anti-line one ground stealing electric energy meter (ADE7761 electric energy computation chip) is though be inhibited to a fiery ground stealing electricity phenomenon, but caused the complaint that the user who aligns electricity commonly used overcharges the electric weight electricity charge again, its main cause also is that the ADE7761 electric energy computation chip selects the electric current of big current branch in electric energy meter 1 and 2 terminals branch roads and electric energy meter 3 and the 4 terminals branch roads to carry out electric energy metrical as metering current automatically.Below our electric weight of analyzing many meterings are (as the Fig. 8 and shown in Figure 9) how to take place.
Supply line as Fig. 8: Room 301 and Room 302 are same floor opposite house, Room 301 and Room 401 are last going downstairs, during the house building electric wire arrangement, make that wherein shared or short circuit appears in the zero line at two families (or many families), when 301 Room electricity consumptions, Room 302 (or Room 401) do not have electricity consumption, and the neutral line current of Room 301 will partly be got back to the zero line of power supply by the zero line measuring element of Room 302 (or Room 401), make the electric energy meter of Room 302 (or Room 401) carry out electric energy metrical.
Short circuit appears in user's zero line and the earth, causes user's neutral line current greater than the live wire current phenomena.Fig. 9 is that the indoor electric wire of user goes wrong because of insulation, zero line forms a power circuit over the ground, when peak of power consumption arrives, D point current potential is high over the ground during to a certain numerical value, the neutral line current I1 of N user power utilization arrives some electric current I 3 user's earth point by the zero line measuring element of this electric energy meter, when if the user does not have electricity consumption or flows through zero line measuring element I3 electric current greater than user power utilization load current I1, electric energy meter will start neutral line current and carry out electric energy metrical, measure electric weight for this user more.
An anti-in sum line one ground stealing electric energy meter (ADE7761 electric energy computation chip) does not only solve user's a line one ground stealing electricity phenomenon fully, caused the dispute of many meterings electric weight again, therefore the power supply enterprise that has has to stop into to purchase the electric energy meter (ADE7761 electric energy computation chip) of an anti-line one ground stealing.3 and 4 ramps (power supply enterprise can not go to get rid of huge numbers of families' zero line shorted to earth fault) that user's zero line shorted to earth phenomenon have to the short circuit electric energy meter appear in an anti-line one ground stealing electric energy meter in use.
2, the defective of single-phase intelligent electric energy meter:
We carried out technology stealing test to the single-phase intelligent electric energy meter, and its measurement loop is basic identical with an anti-line one ground stealing electric energy meter.It does not solve user people is a line one ground stealing that makes the electric energy meter decompression, will cause metering dispute when mutual short circuit of user's zero line and zero line shorted to earth.3 and 4 ramps (power supply enterprise can not go to get rid of huge numbers of families' zero line shorted to earth fault) that user's zero line shorted to earth phenomenon have to the short circuit electric energy meter appear in single-phase intelligent electric energy meter in use, make intelligent electric energy meter lose the function of monitoring neutral line current.When intelligence system finds that the user owes the electricity charge, electricity consumption that can't Long-distance Control false wiring user (net that can only have a power failure is supplied with user's zero line, and the user still can a fiery ground electricity consumption).
Summary of the invention
The object of the present invention is to provide a kind of more can accurately the metering to exchange the anti-technology stealing electric energy meter that single-phase 220V live wire is given user's electric energy.Prevent that the user from artificially connecing enforcement one a fiery ground stealing and artificially making the electric energy meter decompression implement a fiery ground stealing the electric energy meter mistake.
Technical scheme of the present invention has following:
Technical scheme of the present invention has single-phase three to advance two and go out and single-phase three advance one and go out two kinds, and control mode has four kinds of the control type of interchange, DC control formula, alternating current-direct current control type, orthogonal Flow Control standard.
Increased by three elements and introduced ground wire in former single-phase electric energy meter inside as control signal, its operation circuit figure such as Figure 10, Figure 11, Figure 12 representative be three to advance two schemes that go out, Figure 15, Figure 16 and Figure 17 representative be three to advance a scheme that outes.Control element can carry out conversion according to the production technology process level: the big Current Control Relay A of alternating current 220V can be substituted by the AC relay after the alternating current 220V step-down, also can be substituted by the DC relay behind the alternating current 220V step-down rectifier.Equally, first signal relay 1C of alternating current 220V and secondary signal relay 2C can be transformed to the AC signal relay after the alternating current 220V step-down, also can be transformed to the direct current signal relay behind the alternating current 220V step-down rectifier.
Electric energy meter control power supply or live wire output are made up of big Current Control Relay A and operation circuit (ground wire of the live wire of signal relay 1C, signal relay 2C, connection box of electric energy meter terminal, the zero line of connection box of electric energy meter terminal, connection box of electric energy meter terminal), its control signal derives from live wire, zero line, the ground wire of 220V respectively, so we claim that it is " single-phase three-in electric energy meter for resisting technical electricity larceny ".Three advance live wire and the zero line of two removing from mould electric energy meter output AC 220V, and three advance the live wire of a removing from mould electric energy meter output AC 220V.
Though the present invention has the multiple form of expression and application mode is installed, but the general character of core is: increased by three elements and introduced ground wire as control signal in former single-phase electric energy meter inside, having increased these three elements is big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C.
Based on these three general character that element is all technical schemes of the present invention, we propose following technical proposal especially for examining reference:
First scheme: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5.Figure 19 has embodied a concentrated reflection of this three general character that element is all technical schemes of the present invention.
Alternative plan: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 2C1;
Input zero line 3 and the input ground wire 5 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1.
The representative of this scheme be illustrate among Figure 19 single-phase three advance a technology that outes.
Third party's case: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 1C1;
Input zero line 3 and the input ground wire 5 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1; Big Current Control Relay A connects output zero line 4 by often opening node A2.
The representative of this scheme be illustrate among Figure 19 single-phase three advance two technology that go out.
Single-phase three-in electric energy meter for resisting technical electricity larceny adopts to exchange in the control type, and the operating voltage parameter of big Current Control Relay A is 220V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 220V, and Control current is the 0.2-0.5 ampere.Adopt in the DC control formula, the operating voltage parameter of big Current Control Relay A is 9V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 9V, and Control current is the 0.2-0.5 ampere.
Because the Control current of big Current Control Relay A is the 10-60 ampere, so be called big Current Control Relay A; And the Control current of the first signal relay 1C and secondary signal relay 2C is the 0.2-0.5 ampere, only needs the very little electric current of input just can work, so be called signal relay.
Single-phase three-in electric energy meter for resisting technical electricity larceny, wherein: often open and be in series with electric energy meter electric current detecting element between node A1 and the live wire 1.
Advantage of the present invention is as follows:
1. single-phase three advance two goes out electric energy meter corresponding improvement has been carried out in electric energy meter inside, on-the-spot install if introduce ground wire to electric energy meter inside with regard to may command user's technology stealing, its advantage is as follows:
There is not false wiring (during false wiring electric energy meter not output AC 220V voltage) in on-the-spot attaching;
Fiery ground stealing electricity phenomenon when effectively having prevented false wiring;
An one fiery ground stealing electricity phenomenon when effectively having prevented the electric energy meter no-voltage;
Electric energy meter has the function that protection input signal (ground wire and zero line) enters electric energy meter.
Single-phase three advance two go out electric energy meter more exactly metering electric energy meter output AC 220V power supply give user's electric energy.
2. single-phase three advance one, and to go out electric energy meter be to advance two single-phase three to go out on the electric energy meter basis development and form, the on-the-spot installation as long as introduce ground wire to electric energy meter inside, electric energy meter only send the live wire of an alternating current 220V to give the user, the live wire that user power utilization use electric energy meter provides and the ground wire of oneself earth mat are formed the alternating current 220V power supply, and the zero line of the low pressure three-phase and four-line of power supply enterprise is only pressed for the electric energy meter power taking and measured the electric energy and public utilities electricity consumptions (bad place of setting up ground wire) such as city street lamp, the traffic signals of communicating by letter amplification that live wire is sent.Electric energy meter output is given the user through the alternating current 220V live wire of series current detecting element and is used, thus control user's a line (fire) ground stealing, and its advantage is as follows:
There is not false wiring (during false wiring electric energy meter not the live wire of output AC 220V voltage) in on-the-spot attaching;
Fiery ground stealing electricity phenomenon when effectively having prevented false wiring;
An one fiery ground stealing electricity phenomenon when effectively having prevented the electric energy meter no-voltage;
Electric energy meter has the function that protection input signal (ground wire and zero line) enters electric energy meter.
Electric energy meter reduces the characteristics of low-voltage power supply line loss in addition.
Single-phase three advance one go out electric energy meter more exactly the live wire of metering electric energy meter output AC 220V give the user electric energy (avoid the big current voltage drop of zero line make electric energy meter few voltage and few quantity calculation); When the zero line of the low pressure three-phase and four-line of power supply enterprise accident disconnects under the weather extremes situation, can not burn out household electrical appliances because of the zero point drift of user's three-phase load unbalance voltage.
The present invention has solved user's technology stealing problem fully, do not exist yet any metering dispute takes place between power supply enterprise and user, (live wire and zero line in the exchange house lead in make the electricity consumption of indoor zero line shorted to earth also to make things convenient for simultaneously the indoor live wire shorted to earth of power supply enterprise's process user fault.But this electric energy meter of zero line shorted to earth is disregarded volume and electricity).Its use will bring immeasurable economic benefit to power supply enterprise, and the single-phase electric energy meter attachment technique of power supply enterprise will be reformed simultaneously.Single-phase three advance two attachings that go out electric energy meter will be incorporated into ground wire in the electric energy meter that (see Figure 13-Figure 14), single-phase three advance live wire that an attaching that outes electric energy meter only delivers the single-phase 220V of stream uses to the user and (see Figure 15-Figure 18).
Description of drawings
Fig. 1 is an induction type electric energy meter housing synoptic diagram.
Fig. 2 is the single-phase electric energy meter wiring diagram.
Fig. 3 is a line one ground stealing analysis chart of electric energy meter false wiring.
Fig. 4 is an electric energy meter false wiring electric energy meter rotating disk counter-rotating analysis chart.
Fig. 5 is electric energy meter false wiring two family associating stealing analysis charts.
Fig. 6-1,6-2 are electric energy meter no-voltage stealing analysis charts.
Fig. 7-1,7-2 are electric energy meter no-voltage stealing comparison Test Drawings.
Fig. 8 is the shared many metering coulometric analysis figure of many families zero line of an anti-line one ground stealing electric energy meter.
Fig. 9 is that user's zero line ground connection of an anti-line one ground stealing electric energy meter is measured coulometric analysis figure more.
Figure 10 single-phase three advances two and goes out electric energy meter internal wiring figure, adopts to exchange control type.
Figure 11 single-phase three advances two and goes out electric energy meter internal wiring figure, adopts the DC control formula.
Figure 12-1,12-2 single-phase three advance two and go out electric energy meter internal wiring figure, adopt the alternating current-direct current control type.
Figure 13 single-phase three advances two and goes out electric energy meter field and install figure concentratedly.
Figure 14 single-phase three advances two and goes out electric energy meter field list table installation diagram.
Figure 15 single-phase three advances one and goes out electric energy meter back panel wiring and on-the-spot single table installation diagram, adopts to exchange control type.
Figure 16 single-phase three advances one and goes out electric energy meter back panel wiring and on-the-spot single table installation diagram, adopts the DC control formula.
Figure 17-1,17-2 single-phase three advance one and go out electric energy meter back panel wiring and on-the-spot single table installation diagram, adopt the alternating current-direct current control type.
Figure 18 single-phase three advances one and goes out electric energy meter field and install figure concentratedly.
Figure 19 is single-phase anti-technology stealing electric energy meter core operation circuit synoptic diagram.
Reference numeral: input live wire 1; input zero line 3; input ground wire 5; the first signal relay 1C; secondary signal relay 2C; high-current relay A; load R; stealing load r; A family A; B family B; electric energy meter electric current detecting element X; K switch; register F1; nameplate F2; rotating disk F3; four hole ramp box F4; N user power utilization F5; line resistance F6; B family stealing load F7; A family stealing load F8; single-phase three advance two goes out to prevent technology stealing electric energy meter F9; electric energy meter F10 is stolen on an anti-line one ground; bulb F11 does not work; bright bulb F12; step-down rectifying circuit F13; three advance two goes out electric energy meter F14; user's earth leakage protective device F15; three advance one goes out electric energy meter F16; electric energy meter table lid H1; electric energy meter machine stamen H2; electric energy meter operation circuit H3; connection box of electric energy meter box H4.
Specific embodiment
Embodiment 1: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, and wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5.Figure 19 has embodied a concentrated reflection of this three general character that element is all technical schemes of the present invention.
Embodiment 2: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, and wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 2C1;
Input ground wire 5 and the input zero line 3 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1.
The representative of this scheme be illustrate among Figure 19 single-phase three advance a technology that outes.
Embodiment 3: single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit and core operation circuit, and wherein: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 2C1;
Input ground wire 5 and the input zero line 3 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1; Big Current Control Relay A connects output zero line 4 by often opening node A2.
The representative of this scheme be illustrate among Figure 19 single-phase three advance two technology that go out.
Embodiment 4: single-phase three-in electric energy meter for resisting technical electricity larceny, and wherein: adopt to exchange in the control type, the operating voltage parameter of big Current Control Relay A is 220V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 220V, and Control current is the 0.2-0.5 ampere.Adopt in the DC control formula, the operating voltage parameter of big Current Control Relay A is 9V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 9V, and Control current is the 0.2-0.5 ampere.All the other are with embodiment 1 or 2 or 3.
Embodiment 5: single-phase three-in electric energy meter for resisting technical electricity larceny, its control element can carry out conversion according to the production technology process level, the big Current Control Relay A of alternating current 220V can be substituted by the AC relay after the alternating current 220V step-down, also can be substituted by the DC relay behind the alternating current 220V step-down rectifier.Equally, first signal relay 1C of alternating current 220V and secondary signal relay 2C can be transformed to the AC signal relay after the alternating current 220V step-down, also can be transformed to the direct current signal relay behind the alternating current 220V step-down rectifier.
Embodiment 6: single-phase three-in electric energy meter for resisting technical electricity larceny, the first signal relay 1C with normally closed node 1C1 and secondary signal relay 2C with often opening in the circuit that node 2C1 all is connected on big Current Control Relay A working coil.
Embodiment 7: single-phase three-in electric energy meter for resisting technical electricity larceny, the working coil of the first signal relay 1C insert on the connection box of electric energy meter terminal of input zero line 3 and input ground wire 5.
Embodiment 8: single-phase three-in electric energy meter for resisting technical electricity larceny, the working coil of secondary signal relay 2C insert on the connection box of electric energy meter terminal of input live wire 1 and input ground wire 5.
Embodiment 9: single-phase three-in electric energy meter for resisting technical electricity larceny, wherein: often open and be in series with electric energy meter electric current detecting element between node A1 and the live wire 1.All the other are with embodiment 1 or 2 or 3.

Claims (13)

1. single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit, connection box of electric energy meter terminal box and core operation circuit, it is characterized in that: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5.
2. single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit, connection box of electric energy meter terminal box and core operation circuit, it is characterized in that: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 2C1;
Input zero line 3 and the input ground wire 5 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1.
3. single-phase three-in electric energy meter for resisting technical electricity larceny, comprise watchcase, electric energy meter machine stamen circuit, connection box of electric energy meter terminal box and core operation circuit, it is characterized in that: the core operation circuit comprises big Current Control Relay A, the first signal relay 1C, secondary signal relay 2C; Input live wire 1, input zero line 3, input ground wire 5;
The first signal relay 1C connects the big Current Control Relay A of control with normally closed node 1C1;
Secondary signal relay 2C connects the big Current Control Relay A of control with often opening node 2C1;
Input ground wire 5 and the input zero line 3 controls first signal relay 1C;
Input live wire 1 and input ground wire 5 control secondary signal relay 2C;
Big Current Control Relay A connects output live wire 2 by often opening node A1; Big Current Control Relay A connects output zero line 4 by often opening node A2.
4. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, its core operation circuit is characterised in that: control element can carry out conversion according to the production technology process level, the big Current Control Relay A of alternating current 220V can be substituted by the AC relay after the alternating current 220V step-down, also can be substituted by the DC relay behind the alternating current 220V step-down rectifier.Equally, first signal relay 1C of alternating current 220V and secondary signal relay 2C can be transformed to the AC signal relay after the alternating current 220V step-down, also can be transformed to the direct current signal relay behind the alternating current 220V step-down rectifier.
5. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: when correct wiring of electric energy meter (live wire advances 1 terminal, zero line advances 3 terminals) and Access Control ground wire, electric energy meter just can be exported 220V power supply or live wire and use to the user.
6. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: during electric energy meter false wiring (live wire advances 3 terminals, zero line advances 1 terminal), electric energy meter can not be exported the 220V power supply or live wire uses to the user.
7. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny; it is characterized in that: the electrical energy meter electricity source is not during the connecting to neutral line; electric energy meter can not be exported the 220V power supply or live wire uses to the user, and the electric energy meter operation circuit has the function that the protection zero line enters electric energy meter.
8. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny; it is characterized in that: during the earth-free line of electric energy meter; electric energy meter can not be exported the 220V power supply or live wire uses to the user, and the electric energy meter operation circuit has the function that the protection ground wire enters electric energy meter.
9. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: adopt to exchange in the control type: the operating voltage parameter of big Current Control Relay A is 220V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 220V, and Control current is the 0.2-0.5 ampere.Adopt in the DC control formula: the operating voltage parameter of big Current Control Relay A is 9V, and Control current is the 10-60 ampere; The operating voltage parameter of the first signal relay 1C and secondary signal relay 2C is 9V, and Control current is the 0.2-0.5 ampere.
10. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: often open and be in series with electric energy meter electric current detecting element between node A1 and the live wire 1.
11., it is characterized in that according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny: the first signal relay 1C with normally closed node 1C1 and secondary signal relay 2C with often opening in the circuit that node 2C1 all is connected on big Current Control Relay A working coil.
12. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: the working coil of the first signal relay 1C inserts on the connection box of electric energy meter terminal of input zero line 3 and input ground wire 5 or 4.
13. according to claim 1 or 2 or 3 described single-phase three-in electric energy meter for resisting technical electricity larceny, it is characterized in that: the working coil of secondary signal relay 2C inserts on the connection box of electric energy meter terminal of input live wire 1 and input ground wire 5 or 4.
CN 201010151775 2010-04-20 2010-04-20 Single-phase three-in electric energy meter for resisting technical electricity larceny Pending CN101839926A (en)

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CN103995161A (en) * 2014-06-03 2014-08-20 深圳市康拓普信息技术有限公司 Method and system for discriminating electricity stealing and leaking users
CN104155497A (en) * 2014-07-24 2014-11-19 国网河南省电力公司平顶山供电公司 Single-phase electric energy meter anti-electricity-theft method
CN107238754A (en) * 2016-03-29 2017-10-10 华为技术有限公司 A kind of method and apparatus for detecting electricity
CN111525697A (en) * 2020-05-09 2020-08-11 西安交通大学 Medium and low voltage power distribution network electricity larceny prevention method and system based on current monitoring and line topology analysis

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CN201654095U (en) * 2010-04-20 2010-11-24 江西电力职业技术学院 Single-phase three-inlet anti-technical electricity stealing electric energy meter

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CN2345983Y (en) * 1998-01-09 1999-10-27 张务正 Anti-steal electrical apparatus for single-phase pre-payment electric energy meter
CN2405226Y (en) * 1999-12-28 2000-11-08 李全喜 Multi-functional theft-proof device for single phase electric meter
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CN103995161A (en) * 2014-06-03 2014-08-20 深圳市康拓普信息技术有限公司 Method and system for discriminating electricity stealing and leaking users
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CN107238754A (en) * 2016-03-29 2017-10-10 华为技术有限公司 A kind of method and apparatus for detecting electricity
CN111525697A (en) * 2020-05-09 2020-08-11 西安交通大学 Medium and low voltage power distribution network electricity larceny prevention method and system based on current monitoring and line topology analysis

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