CN2411488Y - Anti-fraudulent electric testing device - Google Patents
Anti-fraudulent electric testing device Download PDFInfo
- Publication number
- CN2411488Y CN2411488Y CN 99259042 CN99259042U CN2411488Y CN 2411488 Y CN2411488 Y CN 2411488Y CN 99259042 CN99259042 CN 99259042 CN 99259042 U CN99259042 U CN 99259042U CN 2411488 Y CN2411488 Y CN 2411488Y
- Authority
- CN
- China
- Prior art keywords
- user
- stealing
- voltage
- main frame
- electric
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Burglar Alarm Systems (AREA)
Abstract
The utility model relates to testing device for preventing from stealing electricity, which belongs to the device for testing and recording the electric stealing of a large electric power user in the electrical power system. The utility model is composed of a host machine and a branch machine. After solidified by resin, the host machine is hung on one phase in a high voltage bus of a user and connected with the wire connecting terminal of a low-voltage electric energy meter through an electric cable, and can test and record which phases where the user steals the electricity adopting a current mode and a voltage mode every time, the start time and the stop time of electric stealing and the electric power consumption in the process of the electric stealing of the user. The host machine can prevent from being destroyed by the user, and the user can not make mistakes on the power supply loop and the reference signal loop of the host machine. The branch machine is handheld data acquisition, and reads and displays the recordation on the host machine through an infrared communication mode.
Description
A kind of anti-electricity-theft pick-up unit belongs to the device that electric system detects and writes down large-scale power user's stealing situation.
In recent years, stealing electricity phenomenon grows in intensity, and has caused massive losses to national economy.Owing to there is large-scale power user's the stealing situation of 10KV or the above high pressure inlet wire of 10KV particularly serious, thus power system power supply department to part large-scale power user installation anti-electricity-theft pick-up unit.But at present the known anti-electricity-theft pick-up unit that is applied to the large-scale power user all is mounted in large-scale power user's low-voltage electric energy table side, and the barrier propterty of apparatus structure own is poor, and Chang Yin is destroyed by the user and loses anti-stealing electricity function; The power supply of existing apparatus all is to take from the on-the-spot low tension loop of user, and when the user juggles things in the low tension loop for the device power supply, device will lose the normal power supply of power supply and quit work; Existing apparatus all is from the low-pressure side acquired signal, and compare as reference signal and the signal that collects from user's low-voltage electric energy table side and to judge whether stealing of user, because the user still can juggle things at the acquired signal place of low-pressure side, so device can't play anti-electricity-theft effect this moment; Existing apparatus since the power consumption in can not the each stealing process of recording user therefore implement punishment and bring difficulty to power department.
The purpose of this utility model is: for electric system provides a kind of anti-electricity-theft pick-up unit, be used to detect and write down large-scale power user's stealing situation, it should be from the barrier propterty of stiffening device itself on the structure of device and the circuit design, anti-locking apparatus itself is destroyed by the user, prevent that the user from juggling things in the power supply loop and the reference signal loop of device, the assurance device reliably working, device can not only detect with recording user which to adopt current mode on mutually at every turn, the beginning and ending time of voltage-type stealing and stealing, and the power consumption in can also the each stealing process of recording user, implement punishment for power department reference data is provided.
The purpose of this utility model is achieved in that
A kind of anti-electricity-theft pick-up unit, it is made up of main frame and extension set.Main frame comprises current transformer CT
1(6), current transformer CT
2(7), power converting circuit (8), testing circuit (9), signal conversion circuit (10), A/D converter (11), Single Chip Microcomputer (SCM) system (12), voltage divider (13), reference voltage source (14), comparer I (15), comparer II (16), infrared receiving/transmission circuit (17).Barrier propterty for stiffening device itself, anti-locking apparatus itself is destroyed by the user, after main frame is cured as one with insulating resin, wear and hang over one in user's high voltage bus three-phase and go up mutually, and link to each other with the connection terminal of polycore cable with the low-voltage electric energy table, main frame is used to detect the stealing situation with recording user.Extension set is a data acquisition unit, utilizes rechargeable battery power supply, and personnel carry for the ease of the power department supervision of power consumption, and extension set is designed to hand-held, by the infrared communication mode, can read and show user's stealing situation of host record between it and main frame.
Utilize current transformer CT
1(6) and power converting circuit provide power supply for main frame, be cured in fully in the main frame by it, do not have electrical connecting wires with the on-the-spot low tension loop of user, so the user can't juggle things, can guarantee that the power supply of main frame can be given the main frame normal power supply all the time.
Utilize electric current inductor CT
2(7) phase current signal in high-pressure side collection user high voltage bus three-phase is according to the no-load voltage ratio summation current transformer CT of user's situ metrology Current Transformer
2(7) no-load voltage ratio, this signal is after the signal conversion circuit conversion, can obtain and user's situ metrology Current Transformer secondary circuit actual current size corresponding voltage signal, because the scope of large-scale power user high voltage bus three-phase current unbalance is less, so with this voltage signal signal after with voltage divider dividing potential drop as reference signal, compare with the signal that collects in user's low-voltage electric energy table side respectively corresponding to each phase current size, can judge which the user adopt the current mode stealing on mutually at, and provide corresponding signal and be sent to that Single Chip Microcomputer (SCM) system is handled and record, the effect of voltage divider is there be not stealing and the situation of judging user's stealing by accident takes place for fear of the user that may be caused by three-phase current unbalance; Utilize the three-phase voltage of large-scale power consumer networks to equate substantially and the fluctuation range features of smaller, ratings and fluctuation range thereof according to line voltage are chosen a suitable reference voltage source as reference signal, compare with the signal that collects in user's low-voltage electric energy table side respectively corresponding to each phase voltage size, can judge which the user adopt the voltage-type stealing on mutually at, and provide corresponding signal and be sent to that Single Chip Microcomputer (SCM) system is handled and record.Here because the reference signal loop is cured in the main frame, do not have electrical connecting wires,, guaranteed the reliability of device work so the user can't juggle things with on-the-spot low tension loop.
Single Chip Microcomputer (SCM) system is utilized the rated voltage summation current transformer CT of user's high voltage bus in the each stealing of recording user beginning and ending time, stealing mode
2High voltage bus current signal during user's stealing of (7) collecting, can calculate with the each stealing process of recording user in power consumption, though this value has been ignored the influence of three-phase current, Voltage unbalance, but because the scope of the three-phase current of large-scale power consumer networks, Voltage unbalance is less, so can be used as the reference data that power department is implemented to punish to the user.
Effect of the present utility model is: a kind of anti-electricity-theft pick-up unit, it is made up of main frame and extension set.Device itself can prevent to be destroyed by the user, and the user can't juggle things in the power supply loop and the reference signal loop of device, has guaranteed the device reliably working.Main frame can not only detect with recording user in beginning and ending time which adopts current mode, voltage-type stealing and stealing on mutually, and the power consumption in can also the each stealing process of recording user, implement punishment for power department reference data is provided, main frame is easy for installation, simple with the wiring of user's low-voltage electric energy table, do not influence the measuring accuracy of electric energy meter.Extension set is easy to carry, and handling safety, simple by the infrared communication mode, can read and show user's stealing situation of host record between it and main frame.This device can effectively suppress the strong stealing electricity phenomenon of healing, and avoids national economy to take a bath.
Description of drawings:
Accompanying drawing is a kind of principle schematic of anti-electricity-theft pick-up unit.
(1) main frame among the figure; (2) extension set; (3) user's low-voltage electric energy table; (4) high voltage bus; (5) multicore electricity core; (6) current transformer CT
1(7) current transformer CT
2(8) power converting circuit; (9) testing circuit; (10) signal conversion circuit; (11) A/D converter; (12) Single Chip Microcomputer (SCM) system; (13) voltage divider; (14) reference voltage source; (15) comparer I; (16) comparer II; (17) infrared receiving/transmission circuit.
Below in conjunction with accompanying drawing, be described in detail most preferred embodiment of the present utility model.
In the accompanying drawings, current transformer CT
1(6) summation current transformer CT
2(7) pass on the phase high voltage bus (4) in user's high voltage bus three-phase.Wherein, current transformer CT
1(6) be transformed into direct supply through power converting circuit (8), be the interior each several part power supply of main frame (1).Current transformer CT
2(7) be used for gathering phase high voltage bus (a 4) current signal in user's high voltage bus three-phase, according to the no-load voltage ratio summation current transformer CT of user's situ metrology Current Transformer
2(7) variation, this signal is after signal conversion circuit (10) conversion, obtain and user's situ metrology Current Transformer secondary circuit actual current size corresponding voltage signal, this voltage signal is divided into two-way, one the tunnel gives A/D converter (11), voltage divider (13) is given on another road, and with the signal after voltage divider (13) dividing potential drop as reference signal, in comparer I (15), reference signal is compared with the signal corresponding to each phase current size that collects in user's low-voltage electric energy table (3) side that testing circuit (9) is sent here respectively, certain phase signals of sending here when testing circuit (9) is during less than reference signal, can judge that then the user adopts the current mode stealing mutually at this, and provide signal and be sent to Single Chip Microcomputer (SCM) system (12) and handle and record.Because the scope of large-scale power consumer networks three-phase current unbalance is less, so only gathered the current signal of a phase high voltage bus (4) here, this signal is after conversion, compare with the signal that collects in user's low-voltage electric energy table (3) side respectively, do not only economy but also feasible like this corresponding to each phase current size; Comparer I (15) is actual to be made up of three identical comparers of function; The effect of voltage divider (13) is there be not stealing and the situation of judging user's stealing by accident takes place for fear of the user that may be caused by three-phase current unbalance.In comparer II (16), with reference voltage source (14) is that reference signal is compared with the signal corresponding to each phase voltage size that collects in user's low-voltage electric energy table (3) side that testing circuit (9) is sent here respectively, certain phase signals of sending here when testing circuit (9) is during less than reference signal, can judge that then the user adopts the voltage-type stealing mutually at this, and provide signal and be sent to Single Chip Microcomputer (SCM) system (12) and handle and record.Because the three-phase voltage of large-scale power consumer networks equates substantially and fluctuation range is less, so can choose suitable reference voltage source (14) according to line voltage ratings and fluctuation situation thereof here; Comparer II (16) is actual to be made up of three identical comparers of function.Single Chip Microcomputer (SCM) system (12) is in beginning and ending time of the each stealing of recording user, stealing mode, rated voltage and A/D according to user's high voltage bus (4) change the signal that (11) are sent here, power consumption in calculating and the each stealing process of recording user, though this value has been ignored the influence of three-phase voltage, current imbalance, but because three-phase voltage, the current imbalance scope of large-scale power consumer networks are less, so can be used as the reference data that power department is implemented to punish to the user.Partly be solidified into one with insulating resin in the empty frame among the figure, the main frame of constituent apparatus (1), main frame (1) are worn and are hung on user's high voltage bus (4), and link to each other with current terminal by voltage terminal of polycore cable (5) and user's low-voltage electric energy table (3).Owing to the reference voltage source (14) of main frame (1) with by current transformer CT
1(6), main frame (1) power supply that constitutes of power converting circuit (8) all is cured in the main frame (1), do not have electrical connecting wires with the on-the-spot low tension loop of user, so the user can't juggle things therein, guaranteed the reliability of main frame (1) work.For fear of of the influence of on-the-spot electromagnetic field to main frame (1) work, power converting circuit (8), testing circuit (9), signal conversion circuit (10), A/D converter (11), Single Chip Microcomputer (SCM) system (12), voltage divider (13), reference voltage source (14), comparer I (15), comparer II (16), infrared receiving/transmission circuit (17) need be shielded with shielding case, shielding case adopts double-decker, internal layer is an aluminium foil, and skin is a sheet iron.Extension set (2) is a data acquisition unit, utilizes rechargeable battery power supply, and personnel carry for the ease of the power department supervision of power consumption, and it is designed to hand-held, it with main frame (1) between by the infrared communication mode, read user's stealing situation that main frame (1) writes down.
Claims (1)
1. anti-electricity-theft pick-up unit, it is made up of main frame (1) and extension set (2), and main frame (1) comprises current transformer CT
1(6), current transformer CT
2(7), power converting circuit (8), testing circuit (9), signal conversion circuit (10), A/D converter (11), Single Chip Microcomputer (SCM) system (12), voltage divider (13), reference voltage source (14), comparer I (15), comparer II (16), infrared receiving/transmission circuit (17), extension set (2) is the hand-held data collection device, adopt the infrared communication form between it and main frame (1), feature of the present utility model is: the current transformer CT in the main frame (1)
1(6), current transformer CT
2(7), power converting circuit (8), testing circuit (9), signal conversion circuit (10), A/D converter (11), Single Chip Microcomputer (SCM) system (12), voltage divider (13), reference voltage source (14), comparer I (15), comparer II (16), infrared receiving/transmission circuit (17) are to be cured as one and to wear with insulating resin to hang over one in user's high voltage bus three-phase and go up mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99259042 CN2411488Y (en) | 1999-12-29 | 1999-12-29 | Anti-fraudulent electric testing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99259042 CN2411488Y (en) | 1999-12-29 | 1999-12-29 | Anti-fraudulent electric testing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2411488Y true CN2411488Y (en) | 2000-12-20 |
Family
ID=34041468
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99259042 Expired - Fee Related CN2411488Y (en) | 1999-12-29 | 1999-12-29 | Anti-fraudulent electric testing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2411488Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116782A (en) * | 2010-12-13 | 2011-07-06 | 中国电力科学研究院 | Electricity-stealing prevention on-line analysis method based on artificial intelligence |
| CN103217560A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Anti-stealing-electricity analysis meter |
| CN104391145A (en) * | 2014-12-03 | 2015-03-04 | 广东电网有限责任公司茂名供电局 | Online low voltage detection device for electric leakage and electric energy steal and implement method thereof |
| CN109932585A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院沈阳自动化研究所 | The adaptive binary chop algorithm of smart grid-oriented neighborhood net malicious user positioning |
| CN112147405A (en) * | 2020-09-28 | 2020-12-29 | 湖北理工学院 | Electricity stealing prevention device |
| CN112379161A (en) * | 2020-11-17 | 2021-02-19 | 国家电网有限公司 | Alarm method for judging electricity stealing behavior |
| CN112505403A (en) * | 2020-11-30 | 2021-03-16 | 国网山东省电力公司滨州供电公司 | Power distribution network metering protection system and method |
-
1999
- 1999-12-29 CN CN 99259042 patent/CN2411488Y/en not_active Expired - Fee Related
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102116782A (en) * | 2010-12-13 | 2011-07-06 | 中国电力科学研究院 | Electricity-stealing prevention on-line analysis method based on artificial intelligence |
| CN103217560A (en) * | 2013-03-23 | 2013-07-24 | 国家电网公司 | Anti-stealing-electricity analysis meter |
| CN104391145A (en) * | 2014-12-03 | 2015-03-04 | 广东电网有限责任公司茂名供电局 | Online low voltage detection device for electric leakage and electric energy steal and implement method thereof |
| CN104391145B (en) * | 2014-12-03 | 2016-05-11 | 广东电网有限责任公司茂名供电局 | Online low-voltage leakage power stealing testing arrangement and its implementation |
| CN109932585A (en) * | 2017-12-18 | 2019-06-25 | 中国科学院沈阳自动化研究所 | The adaptive binary chop algorithm of smart grid-oriented neighborhood net malicious user positioning |
| CN109932585B (en) * | 2017-12-18 | 2021-06-29 | 中国科学院沈阳自动化研究所 | Self-adaptive binary search algorithm for positioning malicious users of neighborhood network of smart power grid |
| CN112147405A (en) * | 2020-09-28 | 2020-12-29 | 湖北理工学院 | Electricity stealing prevention device |
| CN112379161A (en) * | 2020-11-17 | 2021-02-19 | 国家电网有限公司 | Alarm method for judging electricity stealing behavior |
| CN112505403A (en) * | 2020-11-30 | 2021-03-16 | 国网山东省电力公司滨州供电公司 | Power distribution network metering protection system and method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201234165Y (en) | Automatic control apparatus for power distribution system | |
| CN100557731C (en) | A kind of electronic mutual inductor with anti-stealing electricity function | |
| CN202103478U (en) | Comprehensive intelligent distribution box | |
| CN202737576U (en) | Intelligent measure-control apparatus used for low voltage power distribution network | |
| CN103323711B (en) | A kind of low-pressure grid-connection pick-up unit of distributed new electricity generation system and method | |
| CN101873010A (en) | Intelligent monitoring terminal of electric distribution system | |
| CN2411488Y (en) | Anti-fraudulent electric testing device | |
| CN102222959A (en) | Charging station | |
| CN103439546A (en) | Electric energy measuring system and method for low-voltage user photovoltaic power generation | |
| CN201075834Y (en) | High power alternating current frequency conversion apparatus for coal mining machine drag system | |
| CN203350356U (en) | High-voltage user photovoltaic power generation energy metering system | |
| CN111404179B (en) | Multifunctional three-phase imbalance treatment device and method | |
| CN201742167U (en) | Intelligent monitoring terminal of power distribution system | |
| CN202041612U (en) | Automatic locating device for earth faults of electricity transmission lines | |
| CN213181812U (en) | Low-voltage transformer area branch monitoring system and monitoring device | |
| CN202474745U (en) | Automatic cable transfer box for power distribution | |
| CN210273591U (en) | Mixed type direct current power supply device for transformer substation | |
| CN218647036U (en) | Intelligent voltage monitoring module | |
| CN203772958U (en) | Wireless clamp-shaped phase detection device | |
| CN201766342U (en) | Passive intelligent demarcation load switch controller | |
| CN219935992U (en) | Power detection device for facility fault analysis | |
| CN201035078Y (en) | Wireless synchronizing current electric voltage sensor | |
| CN208224353U (en) | A kind of high direct voltage intelligent early-warning device | |
| CN220401457U (en) | Portable DC power supply device for transformer substation | |
| CN206077066U (en) | Distribution substation's transformer energy saving control system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| 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 |