CN103336157A - Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection - Google Patents
Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection Download PDFInfo
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- CN103336157A CN103336157A CN2013102617092A CN201310261709A CN103336157A CN 103336157 A CN103336157 A CN 103336157A CN 2013102617092 A CN2013102617092 A CN 2013102617092A CN 201310261709 A CN201310261709 A CN 201310261709A CN 103336157 A CN103336157 A CN 103336157A
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Abstract
The invention discloses a single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection. A light-emitting body, a current-limiting resistor, an electrode and connecting conductors are arranged on the electric energy meter; the light-emitting body and the current-limiting resistor are arranged in an insulation pipe; the connecting conductors are arranged among the insulation pipe, electric energy meter terminals 3 and 4 and the electrode; the electric energy meter terminals 3 and 4, the current-limiting resistor, the light-emitting body and the electrode are electrically connected. When the neutral and fire wires are reversely connected for electricity stealing, the fire wire is formed on the terminals 3 and 4; when the neutral wire is disconnected for electricity stealing, an electric potential is formed on the terminals 3 and 4; and only when a hand, a wall body and the electrode are contacted, the light-emitting body emits light for prompting people that the electric energy meter is in an electricity stealing state. Therefore, the single-phase electric energy meter has the characteristics of safety, reliability, simple structure, low cost and the like.
Description
Affiliated technical field
The present invention relates to measure the instrument of electric energy, relate in particular to a kind of single-phase electric energy meter that can identify zero live wire reversal connection and disconnected zero stealing.
Background technology
Existing single-phase electric energy meter is by two kinds of mechanical type, electronic types, and their mode of connection is identical, and namely power lead advances 1,3 terminals, and load line is drawn by 2,4 terminals, live wire inlet side button 1 specifically, and terminal 2 is drawn the load live wire; Zero line inserts terminal 3, terminal 4 is drawn the load zero line.Single-phase mechanical type electric energy meter error in dipping is big, progressively eliminated by market, single-phase electronic energy meter measuring accuracy height, highly sensitive, it is wide to load, the low grade of energy consumption is extensive use of by people, but common single-phase electronic energy meter only can be measured current signal that the live wire in-out end flows through and the voltage signal of electric energy meter end of incoming cables, cause to detect perfectly and to handle electricity filching behavior, also helpless to some simple electricity filching behaviors, according to statistics, China's electric flux of annual nearly 7,000,000,000 kw.h in recent years is stolen, direct economic loss reaches more than 30 hundred million yuan, day by day the stealing electricity phenomenon that spreads seriously jeopardizes power grid security and social stability, bring serious economy loss to country, social influence is abominable, contain extremely urgently, current stealing mode at common single-phase electronic energy meter mainly contains following several: one in accordance with the law, destroy the electric energy meter structure; Two, outside high-intensity magnetic field stealing; Three, current bypass stealing is specifically used the lead short circuit with electric energy meter live wire (or zero line) into and out of two ends; Four, zero live wire reversal connection stealing, specifically with live wire in the electric energy meter electric source line and zero line switch, again the former end that connects the load live wire on the electric energy meter terminal 2 of electrical equipment is directly inserted the earth, this moment, the electrical equipment consumed current flowed directly into the earth, and the electric current of the electric energy meter live wire current channel of flowing through is zero.Perhaps after the exchange of the live wire in the electric energy meter electric source line and zero line, load live wire one end and load zero line one end on neighbours' electric energy meter terminal 4 that become on the electric energy meter terminal 4 are formed the stealing power supply, during stealing, the electrical equipment consumed current flows into the neutral line current passage of neighbours' electric energy meter, and the electric current on former electric energy meter and the neighbours' electric energy meter live wire current channel is zero; Five, disconnect the zero line stealing, specifically the zero line in the electric energy meter electric source line is disconnected, only insert a live wire, again 01 of electrical equipment is terminated to the earth, this moment, the electrical equipment consumed current flowed directly into the earth, and making does not have line voltage to enter electric energy meter.After perhaps the zero line in the electric energy meter electric source line disconnects, load live wire one end on the electric energy meter terminal 2 and load zero line one end on neighbours' electric energy meter terminal 4 are formed the stealing power supply, the electrical equipment consumed current flows into the neutral line current passage of neighbours' electric energy meter equally during stealing, and former electric energy meter and neighbours' electric energy meter all do not measure.At above stealing conduct, power supply department has been taked electric energy meter sealed up for safekeeping in batch meter and has been used, and to the power lead on the batch meter, load line gets up with sleeve closure, this is to first, second, the third stealing mode has played interception, for the 4th, the 5th kind of stealing mode is still at one's wit's end, power supply department can't or can not be with the power lead on the batch meter, load line gets up with sleeve closure from the beginning to the end, some places are distinguished different color desires at power lead and are stoped zero live wire reversal connection stealing, but electricity filching person replaces with the rubber of same color after with zero live wire reversal connection or paints and coat identical color.Some electric energy meter manufacturing enterprises have produced some special single-phase electronic energy meters according to the 4th kind, the 5th kind stealing mode, specifically having produced with ADE7751 and BL6501 chip according to the 4th kind of stealing mode is the two-circuit electric energy meter of representative, it has played interception to zero live wire reversal connection stealing, but it can not stop disconnected zero stealing, and the cost height, market is beyond affordability; Produce the electric energy meter of the ADE7761 chip of resolving zero measurement pattern according to the 5th kind of stealing mode, but the measurement of power factor and external voltage when measuring of this table can't realize, the general rated voltage of using is measured as estimated value, but the estimated value of principal voltage in different regions, different electrical network has the error of several number percents, this is the limitation of this table, can not stop simultaneously zero live wire reversal connection stealing again, and the cost height, market is difficult to promote.
Summary of the invention
The purpose of this invention is to provide and a kind ofly can identify zero live wire reversal connection stealing, can identify the single-phase electric energy meter that disconnects the zero line stealing again simultaneously.
A kind of single-phase electric energy meter of identifying zero live wire reversal connection and disconnected zero stealing, it is characterized in that: set up luminophor, current-limiting resistance, insulation tube, electrode and bonding conductor at existing common single-phase electric energy meter, luminophor, current-limiting resistance are arranged in the insulation tube, insulation tube is arranged in the electric energy meter inner casing, bonding conductor be arranged on insulation tube and electric energy meter terminal 3,4 and electrode between, electric energy meter terminal 3,4, current-limiting resistance, luminophor and electrode are electrically connected; Lightening hole is set in the electric energy meter loam cake and faces toward luminophor.
Further, in insulation tube, be provided with spring, end cap.
Further, in insulation tube, be provided with lightening hole also facing to luminophor.
Further, described electrode contacts with body of wall or other object that links to each other with ground, and electrode is arranged on the electric energy meter reverse side, electric energy meter is enclosed in the plastics batch meter, electrode is arranged on plastics batch meter reverse side, and electric energy meter is enclosed in the metal batch meter, and electrode is the metal batch meter.
Further, described electrode outer end contacts with staff, and the electrode outer end is arranged on the electric energy meter lateral surface, and electric energy meter is enclosed in the batch meter, and the electrode outer end is arranged on the batch meter lateral surface.
The present invention is provided with the survey electric installation at electric energy meter terminal 3,4, has become live wire on zero live wire reversal connection stealing terminal 3,4; When disconnecting the zero line stealing, electric capacity and/or resistance inductive action, produced electromotive force at terminal 3,4, as long as electrode contacts with staff, body of wall or other object that links to each other with ground, luminophor is luminous, and this prompting people electric energy meter is in the power stealing state, owing to used insulation tube, electricity on the terminal 3,4 has been avoided directly being passed to electrode without resistance, has guaranteed safety; Survey in the electric installation and only adopt resistance, luminophor element, structure is extremely simple, cost is extremely cheap, competitive edge is remarkable.
Description of drawings
Fig. 1 is circuit theory diagrams of the present invention;
Fig. 2 is the structural representation of first embodiment of the present invention;
Fig. 3 is the structural representation of second embodiment of the present invention.
Among the figure: 1-electric energy meter terminal 3,4; The 2-current-limiting resistance; The 3-luminophor; The 4-electrode; 5-electric energy meter loam cake; 6-body of wall or other object that links to each other with ground; 7-reading hole; The 8-lightening hole; 9-pulse hole; 10-electric energy meter lateral surface.
Embodiment
Below in conjunction with description of drawings the specific embodiment of the present invention:
In Fig. 1, electric energy meter terminal 3,4 (1), current-limiting resistance (2), luminophor (3) are connected with electrode (4).The current-limiting resistance value is several megaohms, has guaranteed the person and Electrical Safety.
In embodiment illustrated in fig. 2, set up luminophor (3) on the existing common single-phase electric energy meter, current-limiting resistance (2), insulation tube, electrode (4), bonding conductor, spring and end cap, luminophor (3), current-limiting resistance (2), spring, end cap is arranged in the insulation tube, insulation tube is arranged in the electric energy meter inner casing, spring pressure guarantees each interelement reliable connection, end cap has made things convenient for the installation of element, bonding conductor is arranged on insulation tube and electric energy meter terminal 3,4 (1) and electrode (4) between, electric energy meter terminal 3,4 (1), current-limiting resistance (2), luminophor (3) and electrode (4) are electrically connected, lightening hole (8) is set in insulation tube and the electric energy meter loam cake (5) and faces toward luminophor (3), electrode (4) contacts and is arranged on the electric energy meter reverse side with body of wall or other object (6) that links to each other with ground.
Only on electrode (4), the outer end of electrode (4) contacts and is arranged on electric energy meter lateral surface (10) with staff in this example for another embodiment shown in Figure 3 and difference embodiment illustrated in fig. 2.
The luminous brightness of luminophor (3) is determined according to the actual needs of single-phase electric energy meter.Single-phase electric energy meter electrode (4) contact body of wall or other object (6) area that links to each other with ground are more big, and luminophor (3) brightness is also just more bright in the single-phase electric energy meter.
Claims (5)
1. the single-phase electric energy meter of identification zero a live wire reversal connection and disconnected zero stealing, it is characterized in that: set up luminophor (3), current-limiting resistance (2), insulation tube, electrode (4) and bonding conductor at single-phase electric energy meter, luminophor (3), current-limiting resistance (2) are arranged in the insulation tube, insulation tube is arranged in the electric energy meter inner casing, bonding conductor be arranged on insulation tube and electric energy meter terminal 3,4 and electrode (4) between, electric energy meter terminal 3,4 (1), current-limiting resistance (2), luminophor (3) and electrode (4) are electrically connected; Lightening hole (8) is set in electric energy meter loam cake (5) and faces toward luminophor (3).
2. according to the single-phase electric energy meter of the described identification of claim 1 zero live wire reversal connection and disconnected zero stealing, it is characterized in that: in insulation tube, be provided with spring, end cap.
3. according to the single-phase electric energy meter of the described identification of claim 1 zero live wire reversal connection and disconnected zero stealing, it is characterized in that: in insulation tube, be provided with lightening hole (8) also facing to luminophor (3).
4. according to the single-phase electric energy meter of the described identification of claim 1 zero live wire reversal connection and disconnected zero stealing, it is characterized in that: described electrode (4) contacts with body of wall or other object that links to each other with ground, electrode (4) is arranged on the electric energy meter reverse side, electric energy meter is enclosed in the plastics batch meter, electrode (4) is arranged on plastics batch meter reverse side, electric energy meter is enclosed in the metal batch meter, and electrode (4) is the metal batch meter.
5. according to the single-phase electric energy meter of the described identification of claim 1 zero live wire reversal connection and disconnected zero stealing, it is characterized in that: described electrode (4) outer end contacts with staff, electrode (4) outer end is arranged on electric energy meter lateral surface (10), electric energy meter is enclosed in the batch meter, and electrode (4) outer end is arranged on the batch meter lateral surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102617092A CN103336157A (en) | 2013-06-17 | 2013-06-17 | Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013102617092A CN103336157A (en) | 2013-06-17 | 2013-06-17 | Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection |
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| CN103336157A true CN103336157A (en) | 2013-10-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013102617092A Pending CN103336157A (en) | 2013-06-17 | 2013-06-17 | Single-phase electric energy meter capable of identifying electricity stealing of reverse neutral and fire wire connection and neutral wire disconnection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316816A (en) * | 2014-10-09 | 2015-01-28 | 国家电网公司 | Single-phase residential energy meter missort checking method |
| CN111458544A (en) * | 2020-04-18 | 2020-07-28 | 魏运昌 | Smart electric meter and production is with portable injection moulding device that prevents to block up thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047380U (en) * | 1988-04-06 | 1989-11-08 | 吴昭宇 | Anti-stealing electricity single-phase kilowatt-hour meter |
| CN201203639Y (en) * | 2008-05-23 | 2009-03-04 | 沈阳时尚实业有限公司 | Wireless communication three-phase electric energy metering monitoring instrument |
| CN201242558Y (en) * | 2008-05-12 | 2009-05-20 | 安徽省电力公司巢湖供电公司 | Electric-theft protection alarm indication device for single-phase electric energy meter |
| CN203385776U (en) * | 2013-06-17 | 2014-01-08 | 王怡凡 | Single-phase electric energy meter capable of recognizing electricity theft through reverse connection of live and neutral wires and neutral wire cutting-off |
-
2013
- 2013-06-17 CN CN2013102617092A patent/CN103336157A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2047380U (en) * | 1988-04-06 | 1989-11-08 | 吴昭宇 | Anti-stealing electricity single-phase kilowatt-hour meter |
| CN201242558Y (en) * | 2008-05-12 | 2009-05-20 | 安徽省电力公司巢湖供电公司 | Electric-theft protection alarm indication device for single-phase electric energy meter |
| CN201203639Y (en) * | 2008-05-23 | 2009-03-04 | 沈阳时尚实业有限公司 | Wireless communication three-phase electric energy metering monitoring instrument |
| CN203385776U (en) * | 2013-06-17 | 2014-01-08 | 王怡凡 | Single-phase electric energy meter capable of recognizing electricity theft through reverse connection of live and neutral wires and neutral wire cutting-off |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104316816A (en) * | 2014-10-09 | 2015-01-28 | 国家电网公司 | Single-phase residential energy meter missort checking method |
| CN104316816B (en) * | 2014-10-09 | 2017-11-21 | 国家电网公司 | A kind of single-phase resident's electric energy meter is visited one house after another investigation method |
| CN111458544A (en) * | 2020-04-18 | 2020-07-28 | 魏运昌 | Smart electric meter and production is with portable injection moulding device that prevents to block up thereof |
| CN111458544B (en) * | 2020-04-18 | 2020-12-11 | 无锡市恒通电器有限公司 | Smart electric meter and production is with portable injection moulding device that prevents to block up thereof |
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Application publication date: 20131002 |