CN2280912Y - Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity - Google Patents
Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity Download PDFInfo
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- CN2280912Y CN2280912Y CN 96220131 CN96220131U CN2280912Y CN 2280912 Y CN2280912 Y CN 2280912Y CN 96220131 CN96220131 CN 96220131 CN 96220131 U CN96220131 U CN 96220131U CN 2280912 Y CN2280912 Y CN 2280912Y
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Abstract
The utility model relates to a double-metering three-phase four-wire mutual-induction electricity larceny preventing electric energy meter, comprising an electric energy meter, a current mutual inductor, an electricity larceny preventing device, an electricity penalty detection device, and an electricity penalty display. The three-phase four-wire power supply line of the utility model passes through the current mutual inductor, and the signal end of the current mutual inductor, the electricity larceny preventing device, and the electricity penalty device are in electric connection. The electricity penalty display is in mechanical connection with the driving motors of the electricity larceny preventing device and the electricity penalty detection device. The utility model which is provided with an electricity penalty device with electricity larceny metering has the advantages of simple and compact structure, convenient use, reliable performance of electricity larceny prevention, etc.
Description
The utility model relates to a kind of two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter, particularly relates to a kind ofly having anti-electricity-theft and penalizing two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters of electric installation.
Electric energy meter great majority of the prior art do not have anti-stealing electricity function, growth along with industrial boom and national economy income, electrical appliance and power consumption sharply rise, stealing electricity phenomenon also increases simultaneously, and more and more serious, especially some factories, enterprise and high-power electricity consumer, its electricity filching means brilliant, make power supply department hard to guard against, caused serious economy loss to country, therefore electricity filching behavior is monitored, taken precautions against and hits in electricity consumption becomes a major issue.The technology of some anti-electricity-theft electric energy meters is arranged in the prior art, but obtain applying few, mainly be: 1. adopt mode easily to cause fault, and do not meet reality at electric energy meter internal cutting off power circuit; 2. the anti-electricity-theft device in electric energy meter easily influences the correct meter energy of electric energy meter, and fragile; 3. can not stop the short circuit current transformer, disconnect electric energy meter potential winding voltage, the current transformer and utilize big electric current to pour in down a chimney stealing modes such as making the dial plate counter-rotating of playing a reversed role: 4. do not have the metering of power-steeling quantity; 5. the anti-electricity-theft device that does not have three-phase four-wire system.
The purpose of this utility model is to avoid weak point of the prior art and provides a kind of simple and compact for structure, and is easy to use, and anti-electricity-theft dependable performance has two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters of penalizing electric installation that stealing is measured.
The purpose of this utility model can reach by following measure: two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters include electric energy meter, also be provided with current transformer, anti-electricity-theft, penalize electric detection means and penalize electric display to constitute, electric energy meter three-phase four-wire power line passes current transformer, current transformer induced signal end and anti-electricity-theft, penalize electric installation to electrically connect, penalize electric display to be connected with anti-electricity-theft, as to penalize electric installation driving motor shaft mechanical.Integrate thus three-phase and four-line formula active electric energy meter, current transformer and anti-electricity-theft, penalize electric installation and penalize electric display, make simple and compact for structure, easy to use, anti-electricity-theft dependable performance, and never influence the correct metering of electric weight.
The purpose of this utility model can also reach by following measure: two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters as depicted in figs. 1 and 2, its current transformer is a zero-sequence transformer, the A of electric energy meter, B, the C three-phase supply passes the CTA of current transformer CT respectively, CTB, the primary input terminal of CTC and CTN, be connected to consumer through output terminal, the secondary input end of current transformer CT and output terminal connect with the current terminal of electric energy meter respectively, be that CTA input end and input end connect with 01 and 03 end respectively, the input end of CTB and output terminal connect with 04 and 06 end respectively, the input end of CTC and output terminal connect with 07 and 09 end respectively, the input end of CTN and output terminal connect with 010 and 011 end respectively, A, B, the C three-phase supply is respectively with 02,05,08 end connects, neutral line N connects with 010, and input end L1 and the L2 of current transformer CT take over control stealing, penalize electric detection means.Form an independently current transformer container thus, outside case, leave three-phase four-wire power end of incoming cables and leading-out terminal line bank, three-phase supply is imported by left side line bank, receive load by the output of the right line bank, one row and the corresponding binding post of connection box of electric energy meter end is housed above the current transformer container, during installation the binding post of current transformer container upper end is injected the wiring hole implementation positive connection of the terminals of electric energy meter, make electric energy meter and current transformer form an integral body, be convenient to power supply department and install.Thereby stopped the short circuit current transformer, disconnected electric energy meter potential winding voltage, the current transformer and utilize the big electric current to pour in down a chimney to make the stealing electricity method of dial plate counter-rotating of playing a reversed role.
The utility model is described in further detail to utilize accompanying drawing:
Fig. 1 is the structural representation of a kind of two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters of the present utility model;
Fig. 2 is anti-electricity-theft, the structural representation of penalizing electric detection means of a kind of two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters of the present utility model.
In the of the present utility model pair of metering three-phase four line mutual inductance anti-electricity-theft electric energy meters shown in Figure 1, include electricity Can table 40, current transformer container 30, the electric current that is consisted of by transformer CTA, CTB, CTC and CTN Transformer CT is ZCT, the A of electric energy meter 40, B, C three phase mains and neutral conductor N, The current terminal 01,02,03,04,05,06,07,08,09 of electric energy meter 40,010 and 011, Signal detection end L1 and the L2 of Current Transmit.
Of the present utility model pair of metering three-phase four line mutual inductance anti-electricity-theft electric energy meters shown in Figure 2 anti-electricity-theft, penalize In the electric detection means, include SF017 thick film detected set grow up to be a useful person Ic, resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13, high-power resistance RX1, RX2 and RX3, capacitor C 1, C2, C3 and C4, diode D1, D2, D3, D4, D5, D6 and D7, Zener diode Z2 and Z3, and micro-stepping motor M formation, the in addition signal of Current Transmit The current terminal 02,05 of test side L1 and L2, electric energy meter 40,08 and 010.
The utility model is described in further detail with the following Examples:
Two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter of the present utility model as depicted in figs. 1 and 2, include electric energy meter 40, also be provided with current transformer CT, anti-electricity-theft, penalize electric detection means and penalize electric display to constitute, electric energy meter 40 three-phase four-wire power lines pass current transformer CT, current transformer CT induced signal end L1 and L2 and anti-electricity-theft, penalize electric installation to electrically connect, penalize electric display to be connected with anti-electricity-theft, as to penalize electric installation driving motor M shaft mechanical.Current transformer CT is a zero-sequence transformer, the A of electric energy meter 40, B, the C three-phase supply passes the CTA of current transformer CT respectively, CTB, the primary input terminal of CTC and CTN, be connected to consumer through output terminal, the secondary input end of current transformer CT and output terminal connect with the current terminal of electric energy meter 40 respectively, be that CTA input end and input end connect with 01 and 03 end respectively, the input end of CTB and output terminal connect with 04 and 06 end respectively, the input end of CTC and output terminal connect with 07 and 09 end respectively, the input end of CTN and output terminal connect with 010 and 011 end respectively, A, B, the C three-phase supply is respectively with 02,05,08 end connects, neutral line N connects with 010, and input end L1 and the L2 of current transformer CT take over control stealing, penalize electric detection means.
Two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter of the present utility model as depicted in figs. 1 and 2, it is anti-electricity-theft, penalizing electric detection means can be by the SF017 thick film detected set Ic that grows up to be a useful person, resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13, capacitor C 1 and C2, diode D7, and micro-stepping motor M becomes, 3 pin of integrator Ic meet current transformer CT input end L1 by resistance R 2,2 pin by resistance R 5 and R3 series connection to current transformer CT input end L2, connecting resistance R1 between L1 and the L2, L2 is by resistance R 4 ground connection, 1 pin of integrator Ic is connected to 2 pin by resistance R 5, and connect 13 pin by resistance R 6,12 pin are by resistance R 8 ground connection, and connect 10 pin by resistance R 7,9 pin connect 10 pin by resistance R 10, and connect 8 pin and diode D7 anode by capacitor C 1, diode D7 plus earth, negative electrode connects 6 pin and connects 7 pin by resistance R 12, negative electrode also connects the positive pole of capacitor C 2, capacitor C 2 minus earths, and connect 5 pin by resistance 11, integrator 7 pin connect 5 pin by resistance R 13, and micro-stepping motor M positive pole connects 7 pin, minus earth, its output shaft with penalize electric display mechanical attachment.
A kind of two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meters of the present utility model as depicted in figs. 1 and 2; it is anti-electricity-theft; penalize electric detection means can be provided with by diode D1; D2; D3; D4; D5 and D6; voltage stabilizing diode Z2 and Z3 high-power resistance RX1; RX2 and RX3; and the power protecting circuit of capacitor C 3 and C4 formation; diode D1; D2; the anode of D3 is connected to D4 respectively; D5; the negative electrode of D6; and respectively by resistance R X1; RX2; RX3 and current terminal 02; 05; 08 connects; diode D1; D2; the negative electrode of D3 connects 4 pin of integrator IC; be connected to the anode of capacitor C 3 and the negative electrode of voltage stabilizing diode Z2; diode D4; D5; the anode of D6 connects 11 pin of integrator IC; be connected to the negative electrode of capacitor C 4 and the anode of voltage stabilizing diode Z3, the negative electrode of the anode of capacitor C 4 and voltage stabilizing diode Z3 connects with the anode of the negative electrode of capacitor C 3 and voltage stabilizing diode Z2; and connect and ground connection with current terminal 010.
A kind of pair of the present utility model is measured three-phase and four-line mutual inductance anti-electricity-theft electric energy meters as shown in Figure 1, and it penalizes electric display can be the electric display of penalizing of bidirectional measuring.Can prevent that thus electricity filching person from sending electricity and make electric energy meter dial plate counter-rotating from current transformer container leading-out terminal is counter.
That the utility model is provided with in electric energy meter is anti-electricity-theft, penalize electric detection means and penalize electric display, detect the stealing signal by current transformer CT, the current transformer input end 01,04 of electric energy meter and 07 and the current transformer input end 010 of the neutral line pass current transformer together, detection signal through current transformer is anti-electricity-theft, penalize electric detection means to drive the stepping motor of penalizing electric display, makes and penalizes electric display to measure.When normal electricity consumption, three-phase current normally measures electric energy meter through CTA, the CTB of current transformer CT, three coils that the secondary two ends of CTC are delivered to electric energy meter respectively with induction current, the electric current I a+Ib+Ic sum that this moment, three-phase supply was responded to through current transformer equates with the size of current that neutral line current transformator returns, direction is opposite, promptly the electric current by current transformer is zero, therefore the iron core magnetic flux that is installed with the current transformer CT of four current input terminals is zero, anti-electricity-theft, penalize electric detection means not work, be in servo condition.When electricity filching person carries out stealing, as any inlet wire and outlet with road wiring short circuit current transformer container, when being arranged, load diminished by an electric current of short circuit in the current transformer, the electric current of current transformer of flowing through does not wait with the electric current that returns, iron core at current transformer CT has produced magnetic flux, L1, L2 also just produces induction current, this induction current is through anti-electricity-theft, after penalizing electric detection means to carry out multistage amplification and anti-interference process, drive micro-stepping motor M and drive the electric display work of penalizing, institute's power-steeling quantity is carried out separately or double measuring, reach punishment electricity filching person.
The utility model compared with prior art has the electric installation of penalizing of the stealing of being provided with metering, and is simple in structure tight Gather, easy to use, the characteristics such as anti-electricity-theft dependable performance.
Claims (5)
1. one kind pair is measured three-phase and four-line mutual inductance anti-electricity-theft electric energy meter, include electric energy meter, it is characterized in that also being provided with current transformer, anti-electricity-theft, penalize electric detection means and penalize electric display to constitute, electric energy meter three-phase four-wire power line passes current transformer, current transformer induced signal end and anti-electricity-theft, penalize electric installation to electrically connect, penalize electric display to be connected with anti-electricity-theft, as to penalize electric installation driving motor shaft mechanical.
2. two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter according to claim 1, it is characterized in that said current transformer is a zero-sequence transformer, the A of electric energy meter, B, the C three-phase supply passes the CTA of current transformer CT respectively, CTB, the primary input terminal of CTC and CTN, be connected to consumer through output terminal, the secondary input end of current transformer CT and output terminal connect with the current terminal of electric energy meter respectively, be that CTA input end and input end connect with 01 and 03 end respectively, the input end of CTB and output terminal connect with 04 and 06 end respectively, the input end of CTC and output terminal connect with 07 and 09 end respectively, the input end of CTN and output terminal connect with 010 and 011 end respectively, A, B, the C three-phase supply is respectively with 02,05,08 end connects, neutral line N connects with 010, and input end L1 and the L2 of current transformer CT take over control stealing, penalize electric detection means.
3. two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter according to claim 1 and 2, it is characterized in that said anti-electricity-theft, penalize electric detection means by the SF017 thick film detected set Ic that grows up to be a useful person, resistance R 1, R2, R3, R4, R5, R6, R7, R8, R9, R10, R11, R12 and R13, capacitor C 1 and C2, diode D7, and micro-stepping motor M constitutes, 3 pin meet current transformer CT input end L1 by resistance R 2,2 pin by resistance R 5 and R3 series connection to current transformer CT input end L2, connecting resistance R1 between L1 and the L2, L2 is by resistance R 4 ground connection, 1 pin of integrator Ic is connected to 2 pin by resistance R 5, and connect 13 pin by resistance R 6,12 pin are by resistance R 8 ground connection, and connect 10 pin by resistance R 7,9 pin connect 10 pin by resistance R 10, and connect 8 pin and diode D7 anode by capacitor C 1, diode D7 plus earth, negative electrode connects 6 pin and connects 7 pin by resistance R 12, negative electrode also connects the positive pole of capacitor C 2, capacitor C 2 minus earths, and connect 5 pin by resistance 11, integrator 7 pin connect 5 pin by resistance R 13, and micro-stepping motor M positive pole connects 7 pin, minus earth, its output shaft with penalize electric display mechanical attachment.
4. two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter according to claim 3; it is characterized in that said anti-electricity-theft; penalize electric detection means to be provided with by diode D1; D2; D3; D4; D5 and D6; voltage stabilizing diode Z2 and Z3 high-power resistance RX1; RX2 and RX3; and the power protecting circuit of capacitor C 3 and C4 formation; diode D1; D2; the anode of D3 is connected to D4 respectively; D5; the negative electrode of D6; and respectively by resistance R X1; RX2; RX3 and current terminal 02; 05; 08 connects; diode D1; D2; the negative electrode of D3 connects 4 pin of integrator IC; be connected to the anode of capacitor C 3 and the negative electrode of voltage stabilizing diode Z2; diode D4; D5; the anode of D6 connects 11 pin of integrator IC; be connected to the negative electrode of capacitor C 4 and the anode of voltage stabilizing diode Z3, the negative electrode of the anode of capacitor C 4 and voltage stabilizing diode Z3 connects with the anode of the negative electrode of capacitor C 3 and voltage stabilizing diode Z2; and connect and ground connection with current terminal 010.
5. two metering three-phase and four-line mutual inductance anti-electricity-theft electric energy meter according to claim 1 and 2 is characterized in that said to penalize electric display be the electric display of penalizing of bidirectional measuring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220131 CN2280912Y (en) | 1996-08-06 | 1996-08-06 | Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 96220131 CN2280912Y (en) | 1996-08-06 | 1996-08-06 | Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2280912Y true CN2280912Y (en) | 1998-05-06 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 96220131 Expired - Fee Related CN2280912Y (en) | 1996-08-06 | 1996-08-06 | Double metering-function three-phase four-wire mutural-induction electric meter preventing from fraudulent use of electricity |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2280912Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608374A (en) * | 2012-03-30 | 2012-07-25 | 辽宁省电力有限公司丹东供电公司 | Portable unit power utilization metering device |
| CN105259381A (en) * | 2015-10-28 | 2016-01-20 | 江苏省电力公司常州供电公司 | Portable active electric energy metering device |
| CN110400423A (en) * | 2019-07-31 | 2019-11-01 | 杭州鸿鹄电子有限公司 | A kind of multi-functional flowmeter of integral type Internet of Things and control method |
| CN116223903A (en) * | 2023-05-06 | 2023-06-06 | 烟台东方威思顿电气有限公司 | Anti-interference circuit and method for three-phase three-wire electric energy meter under alternating current magnetic field |
-
1996
- 1996-08-06 CN CN 96220131 patent/CN2280912Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102608374A (en) * | 2012-03-30 | 2012-07-25 | 辽宁省电力有限公司丹东供电公司 | Portable unit power utilization metering device |
| CN105259381A (en) * | 2015-10-28 | 2016-01-20 | 江苏省电力公司常州供电公司 | Portable active electric energy metering device |
| CN105259381B (en) * | 2015-10-28 | 2017-05-10 | 江苏省电力公司常州供电公司 | Portable active electric energy metering device |
| CN110400423A (en) * | 2019-07-31 | 2019-11-01 | 杭州鸿鹄电子有限公司 | A kind of multi-functional flowmeter of integral type Internet of Things and control method |
| CN116223903A (en) * | 2023-05-06 | 2023-06-06 | 烟台东方威思顿电气有限公司 | Anti-interference circuit and method for three-phase three-wire electric energy meter under alternating current magnetic field |
| CN116223903B (en) * | 2023-05-06 | 2023-09-19 | 烟台东方威思顿电气有限公司 | Anti-interference circuit and method for three-phase three-wire electric energy meter under alternating current magnetic field |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C53 | Correction of patent for invention or patent application | ||
| COR | Change of bibliographic data |
Free format text: CORRECT: PATENTEE; FROM: WEIBA ELECTRIC METER FACTORY, ZHANJIANG CITY TO: WEIBA METER ( SHENZHEN ) CO., LTD. |
|
| CP03 | Change of name, title or address |
Address after: 518000 Shenzhen Luohu District City Songyuan Road No. 68 building 4 layer 3 contact: Li Yingzhou Patentee after: Granville power meter (Shenzhen) Co., Ltd. Address before: 524022 No. 22, Renmin Road, Zhanjiang Development Zone, Guangdong, China Patentee before: Weiba Electric-Meter Factory, Zhanjiang City |
|
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| C57 | Notification of unclear or unknown address | ||
| DD01 | Delivery of document by public notice |
Addressee: Granville electric meter (Shenzhen Co., Ltd.) Document name: Notice of termination |