CN104833830B - A kind of plug-in type electricity-stealing prevention metering tank - Google Patents
A kind of plug-in type electricity-stealing prevention metering tank Download PDFInfo
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- CN104833830B CN104833830B CN201510201736.XA CN201510201736A CN104833830B CN 104833830 B CN104833830 B CN 104833830B CN 201510201736 A CN201510201736 A CN 201510201736A CN 104833830 B CN104833830 B CN 104833830B
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Abstract
The invention discloses a kind of plug-in type electricity-stealing prevention metering tank, including metering box body, electric energy meter, plug-in type pillar, on-off circuit and enclosed bus, wherein, multiple electric energy meters are installed in metering box body, enclosed bus connect plug-in type pillar by travel switch, different plug-in type pillars connect output line by on-off circuit, on-off circuit includes upper switch and lower switch, ON-OFF control circuit includes upper control loop and lower control loop, travel switch is connected with lower control loop normally closed switch, lower control loop normally closed switch controls lower switch by the timer that in-phase proportion amplifier is controlled with lower control loop normal open switch by OR circuit, the upper switch that upper control loop normal open switch passes through OR circuit controlling switch circuit by the timer that in-phase proportion amplifier and upper control loop normally closed switch are controlled.The present invention can be realized in the case of uninterrupted power supply, it is legal electric energy meter is moved, rotation, transformation etc..
Description
Technical field
The present invention relates to a kind of plug-in type electricity-stealing prevention metering tank.
Background technology
The anti-electricity-theft work of current Utilities Electric Co. is essentially all passive, i.e., electricity filching person has been carried out a period of time
Electricity filching behavior, anti-electricity-theft inspector becomes loss rate, power consumption in one period of client and the data such as changes by line loss per unit, platform area
It is analyzed or the means such as someone's report, finds out possible stealing user, then carry out on-site verification, evidence obtaining, confirms stealing
Electric quantity compensating, electricity charge recovery and punishment etc. is carried out after behavior in accordance with the law again to process afterwards.It is this kind of look into stealing work i.e. it is time-consuming again
Arduously, especially the stealing of looking into of low pressure Electricity customers works just as looking for a needle in a haystack.
Electricity filching means have two kinds in terms of big, and one is around more metering device stealing；Two is that destruction metering device is (main
If electric energy meter), be allowed to shunt, defluidization, it is disconnected mutually and using modes such as short-circuit clamps carry out stealing, second in both modes
The mode of kind is the most universal.
But if to carry out stealing using the second way, then need to be juggled things in electric energy meter point of incoming cables, if using slotting
Formula wiring is connect, External Insulation is shielded, then cannot change inlet wire current carries out stealing, unless electric energy meter need to be moved, now such as inserted
The formula connection side of connecing does interlock delay device, then be capable of achieving, and private key is not inserted into, then blocking device is invalid, postpones certain hour
After powered off, only insert private key, in the case of just may be implemented in uninterrupted power supply, movement, rotation, transformation electric energy
Table.
Anti-electricity-theft work can be made to be changed into actively, being investigated and prosecuted by after stealing from passive using the anti-electricity-theft device with this function
Prevented before being changed into stealing, alleviate the workload of power utility check personnel, ensure that power resource is not stolen illegally.
The content of the invention
The present invention is in order to solve the above problems, it is proposed that a kind of plug-in type electricity-stealing prevention metering tank, the present apparatus can be realized
In the case of uninterrupted power supply, it is legal electric energy meter is moved, rotation, transformation etc.；And during electricity filching person movement electric energy meter, then
Private key is such as not inserted within the time delay of setting, circuit will be powered off, and only in insertion private key after power-off
In the case of can just restore electricity.
To achieve these goals, the present invention is adopted the following technical scheme that：
A kind of plug-in type electricity-stealing prevention metering tank, including metering box body, electric energy meter, plug-in type pillar, on-off circuit and envelope
Enclosed bus, wherein, multiple electric energy meters are installed in metering box body, enclosed bus connect plug-in type branch by travel switch
Post, different plug-in type pillars connect output line by on-off circuit, and on-off circuit includes upper switch and lower switch, switch control
Circuit includes upper control loop and lower control loop, and travel switch is connected with lower control loop normally closed switch, and lower control loop is normal
It is defeated that make and break pass is together connected to OR circuit by in-phase proportion amplifier with the timer that lower control loop normal open switch is controlled
Enter end, switched under co- controlling, upper control loop normal open switch passes through in-phase proportion amplifier and upper control loop normally closed switch
The timer of control is together connected to the input of another OR circuit, the upper switch of co- controlling on-off circuit.
The ON-OFF control circuit includes controlling power circuit, upper control loop and lower control loop, wherein, control power supply
Circuit connection upper control loop and lower control loop, upper control loop, lower control loop include in-phase proportion amplifier, OR gate
Circuit, normal open switch, normally closed switch and timer, upper control loop is normally opened, normally closed switch respectively with in-phase proportion amplifier and
Timer is connected；Lower control loop is normally opened, normally closed switch is connected with timer and in-phase proportion amplifier respectively.
The lower control loop normally closed switch is interlocked with lower control loop normal open switch, upper control loop normally closed switch with it is upper
Control loop normal open switch is interlocked.
The opening of the lower control loop normally closed switch is controlled by travel switch, closure by upper control loop normally closed switch and
Private key is controlled.
The control of the auxiliary contact and lower control loop normally closed switch of the upper control loop normally closed switch of private key control
Coil processed series connection, while the auxiliary contact of the lower control loop normally closed switch of control and upper control loop normally closed switch control coil
Series connection.
Based on the method for work of above-mentioned batch meter, comprise the following steps：
(1) batch meter is opened, before mobile, transformation, rotation electric energy meter, private key is inserted；
(2) mobile electric energy meter, the travel switch action of plug-in type pillar connection, the letter of lower control loop normally closed switch control
Number loop disconnects, the lower control loop normal open switch closure for interlocking, exportable one section of high level, under after OR circuit
Control loop high level keeps；
(3) in the case where private key is inserted, the normally closed switch of upper and lower control loop realizes interlocking, upper control loop
Normally closed switch disconnects, and normal open switch closure, upper control loop can immediately export high level, realize uninterrupted power supply；
Etc. (4) after the completion of electric energy meter modification, transformation, electric energy meter is inserted into plug-in type pillar, pulls up private key, it is upper and lower
Control loop normally closed switch is closed, and upper and lower control loop normal open switch disconnects, and lower control loop high level is exported immediately, upper control
Loop high level processed time delay terminates afterwards for a period of time, closes batch meter chamber door.
In the step (3), such as start to be not inserted into private key, after mobile electric energy meter, keep defeated in lower control loop
Go out in the time of high level, insert private key, can still realize the control coil of control loop normally closed switch and lower control
The series loop of the auxiliary contact of loop normally closed switch is connected, and two normally closed switch is acted simultaneously, makes control loop normally closed
Switch off, normal open switch closure, upper control loop can immediately export high level.
In the step (3), private key is such as not inserted into all the time, after time delay, lower control loop high level becomes
It is low level, lower control loop disconnects, two normally closed switch of upper and lower two control loop are failure to actuate simultaneously, and upper control loop can not be defeated
Go out high level.
In the step (4), in the case where private key is not inserted into, even if being inserted into electric energy meter, lower control loop
After normally closed switch is due to disconnection, the control coil series loop of lower control loop normally closed switch can not be closed due to being not switched on
Close, lower control loop not can turn on still.
In step (1)-(4), if customers dial phone is reported for repairment, Utilities Electric Co. personnel insertion private key, lower control
The control coil series loop of loop normally closed switch processed is connected, and is capable of achieving normally closed switch closure, and it is high that lower control loop connects output
Level, realizes power supply, but this client is doubtful stealing client, and Utilities Electric Co. need to check batch meter whether there is change, electric energy meter need through
Laboratory verification rear is reusable.
Beneficial effects of the present invention are：
(1) present invention can realize the plug-in Fast Installation of electric energy meter, improve electric energy meter installation effectiveness；
(2) the replacing low -voltage Watt -hour meter that do not have a power failure is realized, i.e., no longer needs to have a power failure to family when low -voltage Watt -hour meter is changed, lifting
Good service level；
(3) when illegal mobile transformation electric energy meter, can automatically power off and cannot recover, prevent stealing from occurring；
(4) it is doubtful stealing client when being reported for repairment to the client equipped with this kind of batch meter, anti-electricity-theft investigation work can reduce model
Enclose, it is to avoid formula of looking for a needle in a haystack is generally investigated；
(5) suitable for multi-epitope batch meter, when doubtful stealing occurs, it is to avoid master switch tripping operation before table in batch meter, subtract
Power failure area is lacked.
Brief description of the drawings
Fig. 1 is anti-electricity-theft workflow schematic diagram of the invention；
Fig. 2 is arrangement schematic diagram of the invention；
Fig. 3 is ON-OFF control circuit structure principle chart of the invention；
Fig. 4 is the switching drive signal oscillogram under various operative scenarios of the invention.
Wherein, box body is 1. measured, 2. electric energy meter, 3. enclosed bus, 4. plug-in type pillar, 5 on-off circuits are 6. special
Key, 7. controlling power circuit, 8. normal open switch, 9. normally closed switch, 10. travel switch, 11. positive scaling circuits,
12.555 low level delay circuit outputs, 13. OR circuits.
Specific embodiment：
The invention will be further described with embodiment below in conjunction with the accompanying drawings.
As shown in Fig. 2 the present invention includes metering box body 1, electric energy meter 2, enclosed bus 3, plug-in type pillar 4, switch
Circuit 5, travel switch 10, the closed metering casing 1 that enters of bus 3 is connected with plug-in type pillar 4, be can't see in batch meter bright
Line, plug-in type pillar control travel switch 10, travel switch 10 is connected with normally closed switch 9, and normally closed switch is mutual with normal open switch 8
Lock, two normally closed switch auxiliary contact are controlled to connect with coil series circuit by private key 6.About two 9 points of normally closed switch
Not with the delay circuit of upper and lower control loop 555 and amplifying circuit is connected in proportion, about two normal open switch 8 respectively with control up and down
Amplifying circuit and 555 delay circuits are connected in proportion in loop.
2 operational amplifiers are each configured to two sign-changing amplifiers, can be obtained with (diminution) device is mutually amplified, such as after series connection
On Fig. 3 shown in control loop.
The relation of input voltage and output voltage is：Uo=UiR2·R4/(R3·R5)。
Can be by adjusting R2、R3、R4、R5Size, meet requirement to driving voltage size.
By shown in 555 timer configurations into control loop on Fig. 3, this circuit is initial output high level, works as operating voltage
Connect, electric capacity C1Have little time to charge, with electric capacity C1Charging, 555 timersPin (i.e. No. 2 pins) voltage reaches threshold
During threshold voltage, Vo output pins (i.e. No. 3 pins) voltage upset of 555 timers exports low level, and be always maintained at down.
The delay adjustmentses time is：Tw=R1·C1。
As shown in control loop on Fig. 3, in-phase amplification circuit output and the output of 555 delay circuits are exported by OR circuit
As the control signal of the upper switch of Fig. 2 on-off circuits 5, the optional 74LS32 of OR gate device etc..
Control loop control principle ibid control loop, repeats no more conduct here under Fig. 3, and this output signal is used as Fig. 2
The lower switch controlling signal of lower control loop on-off circuit 5.
Chamber door is measured when opening, it is desirable to insert private key, mobile transformation electric energy meter, travel switch action, normally closed switch
SB4, SB2 disconnect, normal open switch SB3, SB1 closure.Upper control loop exports high level immediately, and it is low that lower control loop postpones output
Level, ON-OFF control circuit output waveform is as shown in t9-t10 in Fig. 4.
Mobile transformation electric energy end of list (EOL), inserts plug-in type pillar, normally closed switch SB4, SB2 closure, normal open switch SB3, SB1
Disconnect, pull up private key, ON-OFF control circuit output waveform is as shown in t11-t12 in Fig. 4.
It is mobile to transform electric energy meter when metering chamber door is opened, and when being not inserted into private key, normally closed switch SB4 disconnects, normally opened
Switch SB3 closures, normally closed switch SB2, normal open switch SB1 keep original state, due to the timer-delay of lower control loop 555 electricity
Road, control circuit will keep one section of high level, and the retention time is Tw, and such as within this time, insertion private key still can be with
System keeps uninterrupted power supply, completes transformation rotation electric energy meter, and ON-OFF control circuit output waveform is as shown in t5-t6 in Fig. 4.
As being not inserted into private key always, ON-OFF control circuit output waveform is as shown in t1-t2 in Fig. 4.Now Fig. 3 is upper and lower
Control control loop exports low level, and Fig. 2 switches are in off-state, system cut-off.
Due to being not inserted into private key, the auxiliary contact of two normally closed switch and the series circuit of coil are in and disconnect shape
State, after lower control loop normally closed switch disconnects, even if be inserted into electric energy meter cannot also close, ON-OFF control circuit output waveform is such as
In Fig. 4 shown in t2-t3.
After such as powering off, client makes a phone call to report for repairment, and Utilities Electric Co. personnel can be by plugging private key, you can realize that system is led to
Electricity, ON-OFF control circuit output waveform is as shown in t3-t4 in Fig. 4.But, electric energy meter now may be processed, need to be through reality
Test room assay approval rear reusable.
Although above-mentioned be described with reference to accompanying drawing to specific embodiment of the invention, not to present invention protection model
The limitation enclosed, one of ordinary skill in the art should be understood that on the basis of technical scheme those skilled in the art are not
Need the various modifications made by paying creative work or deformation still within protection scope of the present invention.
Claims (10)
1. a kind of plug-in type electricity-stealing prevention metering tank, it is characterized in that：Including metering box body, electric energy meter, plug-in type pillar, switch electricity
Road and enclosed bus, wherein, multiple electric energy meters are installed in metering box body, enclosed bus are connected by travel switch and inserted
Formula pillar is connect, different plug-in type pillars connect output line by on-off circuit, and on-off circuit includes upper switch and lower switch, opens
Closing control circuit includes upper control loop and lower control loop, and travel switch is connected with lower control loop normally closed switch, lower control
Loop normally closed switch is together connected to OR gate by the timer that in-phase proportion amplifier is controlled with lower control loop normal open switch
Circuit input end, switchs under co- controlling, and upper control loop normal open switch is normal with upper control loop by in-phase proportion amplifier
The input that the timer for controlling together is connected to another OR circuit, the upper switch of co- controlling on-off circuit are closed in make and break.
2. a kind of plug-in type electricity-stealing prevention metering tank as claimed in claim 1, it is characterized in that：The ON-OFF control circuit also includes
Controlling power circuit, controlling power circuit connection upper control loop and lower control loop.
3. a kind of plug-in type electricity-stealing prevention metering tank as claimed in claim 1, it is characterized in that：The lower control loop normally closed switch
Interlocked with lower control loop normal open switch, upper control loop normally closed switch is interlocked with upper control loop normal open switch.
4. a kind of plug-in type electricity-stealing prevention metering tank as claimed in claim 3, it is characterized in that：The lower control loop normally closed switch
Opening controlled by travel switch, closure is controlled by upper control loop normally closed switch and private key.
5. a kind of plug-in type electricity-stealing prevention metering tank as claimed in claim 4, it is characterized in that：Controlled in the private key control
The control coil series connection of the auxiliary contact of loop normally closed switch and lower control loop normally closed switch, while the lower control loop of control is normal
The control coil series connection of auxiliary contact and upper control loop normally closed switch that make and break is closed.
6. the method for work of batch meter as claimed in claim 1, it is characterized in that：Comprise the following steps：
(1) batch meter is opened, before mobile, transformation, rotation electric energy meter, private key is inserted；
(2) mobile electric energy meter, the travel switch action of plug-in type pillar connection, the signal of lower control loop normally closed switch control is returned
Road disconnects, the lower control loop normal open switch closure for interlocking, exportable one section of high level, by lower control after OR circuit
Loop high level keeps；
(3) in the case where private key is inserted, the normally closed switch of upper and lower control loop is realized simultaneously switching off or closing, upper control
Loop normally closed switch processed disconnects, and normal open switch closure, upper control loop can immediately export high level, realize uninterrupted power supply；
Etc. (4) after the completion of electric energy meter modification, transformation, electric energy meter is inserted into plug-in type pillar, pulls up private key, upper and lower control
Loop normally closed switch closure, upper and lower control loop normal open switch is disconnected, and lower control loop high level is exported immediately, upper to control back
Road high level time delay terminates afterwards for a period of time, closes batch meter chamber door.
7. method of work as claimed in claim 6, it is characterized in that：In the step (3), such as start to be not inserted into private key
Spoon, after mobile electric energy meter, within the time that lower control loop keeps output high level, inserts private key, can still realize
The control coil of control loop normally closed switch is connected with the series loop of the auxiliary contact of lower control loop normally closed switch, and makes two
Normally closed switch is acted simultaneously, disconnects control loop normally closed switch, and normal open switch closure, upper control loop can immediately export height
Level.
8. method of work as claimed in claim 6, it is characterized in that：In the step (3), private key is such as not inserted into all the time
After spoon, time delay, lower control loop high level is changed into low level, and lower control loop disconnects, and the two of upper and lower two control loop
Normally closed switch is failure to actuate simultaneously, and upper control loop can not export high level.
9. method of work as claimed in claim 6, it is characterized in that：In the step (4), the feelings of private key are being not inserted into
Under condition, even if being inserted into electric energy meter, after lower control loop normally closed switch is due to disconnection, the control line of lower control loop normally closed switch
Circle series loop can not be closed due to being not switched on, and lower control loop not can turn on still.
10. method of work as claimed in claim 6, it is characterized in that：In step (1)-(4), if customers dial phone
Report for repairment, Utilities Electric Co. personnel insertion private key, the control coil series loop of lower control loop normally closed switch is connected, is capable of achieving
Normally closed switch is closed, and lower control loop connects output high level, realizes power supply, but this client is doubtful stealing client, and electric power is public
Department need to check batch meter whether there is change, and electric energy meter need to be reusable through laboratory verification rear.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510201736.XA CN104833830B (en) | 2015-04-24 | 2015-04-24 | A kind of plug-in type electricity-stealing prevention metering tank |
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| CN201510201736.XA CN104833830B (en) | 2015-04-24 | 2015-04-24 | A kind of plug-in type electricity-stealing prevention metering tank |
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| CN104833830A CN104833830A (en) | 2015-08-12 |
| CN104833830B true CN104833830B (en) | 2017-06-16 |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107275934B (en) * | 2017-06-19 | 2019-02-15 | 国网山东省电力公司电力科学研究院 | A kind of electric power system power distribution protective device, application and method |
| CN109188039B (en) * | 2018-09-28 | 2021-05-11 | 国网重庆市电力公司电力科学研究院 | Anti-electricity-stealing intelligent meter tail with communication function |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6236197B1 (en) * | 1998-05-15 | 2001-05-22 | Abb Power T&D Company Inc. | Apparatus and method for detecting tampering in a multiphase meter |
| CN2503491Y (en) * | 2001-09-25 | 2002-07-31 | 胜利油田龙发工贸有限责任公司 | Intelligence electric metering box for avoiding electric burglary |
| BRPI0705720A2 (en) * | 2007-10-23 | 2009-06-23 | Queiroz Silva Renato De | (cat catch) - intelligent self-tracking differential system (processes, components and schematics) supervised by gps or reverse geocoding |
| CN201666905U (en) * | 2009-05-26 | 2010-12-08 | 中国葛洲坝集团股份有限公司 | Multi-functional high-voltage electric energy metering meter box |
| CN101833021A (en) * | 2010-04-28 | 2010-09-15 | 河南省电力公司南阳供电公司 | Electricity-stealing prevention metering tank |
| CN204731279U (en) * | 2015-04-24 | 2015-10-28 | 国家电网公司 | A kind of plug-in type electricity-stealing prevention metering tank |
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Address after: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: State Grid Corporation of China Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. |
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Effective date of registration: 20210415 Address after: No. 150, Jinger Road, Daguanyuan, Shizhong District, Jinan City, Shandong Province Patentee after: Shandong Electric Power Marketing Center Patentee after: STATE GRID CORPORATION OF CHINA Patentee after: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. Address before: 100031 No. 86 West Chang'an Avenue, Beijing, Xicheng District Patentee before: STATE GRID CORPORATION OF CHINA Patentee before: ELECTRIC POWER RESEARCH INSTITUTE OF STATE GRID SHANDONG ELECTRIC POWER Co. |
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