CN201181513Y - Remote integrated warning system of power transformer - Google Patents
Remote integrated warning system of power transformer Download PDFInfo
- Publication number
- CN201181513Y CN201181513Y CNU2007201998010U CN200720199801U CN201181513Y CN 201181513 Y CN201181513 Y CN 201181513Y CN U2007201998010 U CNU2007201998010 U CN U2007201998010U CN 200720199801 U CN200720199801 U CN 200720199801U CN 201181513 Y CN201181513 Y CN 201181513Y
- Authority
- CN
- China
- Prior art keywords
- warning system
- chip microcomputer
- circuit
- sensor
- transformer
- 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
- Alarm Systems (AREA)
Abstract
The utility model provides a power transformer long-distance comprehensive warning system, which comprises a single chip micyoco, a sensor, a GSM transmitting/receiving module, a GSM common mobile communication network and an alarm-receiving terminal. The GSM transmitting/receiving module and the sensor are connected with the single chip micyoco, and the GSM transmitting/receiving module and the alarm-receiving terminal are connected with the GSM common mobile communication network in a wireless communication manner. When a transformer is stolen or has an abnormal operating state, a warning signal can be transmitted to the mobile phone of a related personnel and a 110 message warning platform in a message manner. The anti-theft function of the warning system is provided with three detection defense lines and can prevent warning absence when the transformer is stolen. When the transformer operates normally, the operating temperature, the load current, the output voltage, the oil level, the transformer-to-ground current leakage and the core multi-point grounding failure can be monitored. Once the failure or the over-standard of a parameter occurs, the related personnel can be informed of overhauling in time via the GSM network.
Description
Technical field
The utility model relates to the long-range integrated warning system of a kind of power transformer, when stolen phenomenon takes place especially a kind of power transformer or power transformer duty timely system of remote alarms when unusual.
Background technology
Be installed in the power transformer of outdoor application, the power transformer that use particularly remote relatively region, stolen, the destroyed phenomenon of power transformer often takes place in for want of effective anti-theft measure, forms large tracts of land, has a power failure for a long time; Or fail in time to find and processing causes power transformer to burn to have a power failure because of power transformer overload, unusual overtemperature etc.Utilities Electric Co. and user are caused direct, indirect economic loss, also industrial and agricultural production and daily life are caused difficulty.
Regulation according to " power transformer operating standard ", transformer, substation transformer in the unattended substation must regularly be patrolled to working conditions such as temperature, liquid level, pressure relief valve, gas relay, leakage of oils, do support so power department must be equipped with suitable manpower and materials.
Present existing transformer anti-theft alarm all has only single anti-theft feature, can not to the overtemperature of transformer, overvoltage, overload, electric leakage etc. directly the parameter of infringement transformer operate as normal in time monitor and report to the police.
The utility model content
Technical problem to be solved in the utility model provides the long-range integrated warning system of a kind of power transformer, make it can be when transformer suffers that the burglar steals, the heat transfer agent that produces in time sends in related personnel's the mobile phone or 110 SMS alarm platforms with short message mode by the GSM common mobile, and send chimes of doom or carry out the scene and propaganda directed to communicate, thereby criminal offence deterred hit or responding is in time arrested, avoid damage further to enlarge.
For solving the problems of the technologies described above, the utility model provides a kind of power transformer long-range integrated warning system, is characterized in comprising: single-chip microcomputer, sensor, GSM transceiver module, GSM common mobile and the terminal of receiving a crime report; The GSM transceiver module links to each other with single-chip microcomputer with sensor, and the GSM transceiver module links with receive a crime report terminal and the wireless telecommunications of GSM common mobile.
When the transformer operate as normal, the long-range integrated warning system of power transformer of the present utility model, can monitor duties such as the working temperature of transformer, load current, output voltage, oil level and transformer Leaked Current of Line to Ground, multipoint earthing of iron core fault, in case there is fault or the parameter situation that exceeds standard to take place, can in time notify the related personnel to overhaul by the GSM network, prevent that fault from continue enlarging, cause transformer to damage or personal safety is threatened.
Described sensor comprises: three-phase voltage and power failure sensing circuit 21, threephase load current sensor 22, ground wire current sensor 23, inclination sensor 24, anti-theft wire 25, liquid level sensor 26, digital temperature sensor 27, alarm internal temperature sensor 28, alarm lid magnetic switch 29 and five tunnel backup sensors input ports 30, this port can connect external equipments such as transformer gas relay contact, pressure releasing of brake contact, metering bin door switch, pressure-type thermometer contact, infrared switch.The user can edit the short message content of warning as required and the control corresponding actuating of relay is set.
The output terminal of described three-phase voltage and power failure sensing circuit, threephase load current sensor and ground wire current sensor is connected with analog to digital conversion circuit respectively, the output terminal of each analog to digital conversion circuit is connected with buffer circuit in turn, and the output terminal of each buffer circuit links to each other with single-chip microcomputer successively; The output terminal of described inclination sensor, anti-theft wire and liquid level sensor is connected with signal processing circuit respectively, and the output terminal of each signal processing circuit is connected with buffer circuit in turn, and the output terminal of each buffer circuit links to each other with single-chip microcomputer successively; The output terminal of digital temperature sensor is connected with buffer circuit, and the output terminal of this buffer circuit links to each other with single-chip microcomputer; The output terminal of alarm internal temperature sensor is connected with signal processing circuit, and the output terminal of this signal processing circuit links to each other with single-chip microcomputer 1; Alarm lid magnetic switch links to each other with single-chip microcomputer; The backup sensors input port links to each other with single-chip microcomputer through buffer circuit.
This warning system also comprises: the audio alert loudspeaker that link to each other with the GSM transceiver module with single-chip microcomputer, and the microphone input circuit that links to each other with the GSM transceiver module.
This warning system also comprises: the data-carrier store that links to each other with single-chip microcomputer, and the concealed antenna that links to each other with the GSM transceiver module.
This warning system also comprises: be serially connected with signal processing circuit and signal isolation circuit between sensor and the single-chip microcomputer.
This warning system also comprises: the controlling output circuit that links to each other with single-chip microcomputer.
Technique scheme of the present utility model has the following advantages compared to existing technology: can be when transformer suffers that the burglar steals, the heat transfer agent that produces in time sends in related personnel's the mobile phone or 110 SMS alarm platforms with short message mode by the GSM common mobile, and send chimes of doom or carry out the scene and propaganda directed to communicate, thereby criminal offence deterred hit or responding is in time arrested, avoid damage further to enlarge.
Description of drawings
Accompanying drawing 2 is the sensor circuit block diagram of the utility model embodiment.
Embodiment
Described signal processing circuit 3 comprises: first analog to digital conversion circuit 31, second analog to digital conversion circuit 32, the 3rd analog to digital conversion circuit 33, first signal transformation circuit 34, secondary signal shaping circuit 35, the 3rd signal transformation circuit 36, the 4th signal transformation circuit 38; Described signal isolation circuit 4 comprises: first buffer circuit 41, second buffer circuit 42, the 3rd buffer circuit 43, the 4th buffer circuit 44, the 5th buffer circuit 45, the 6th buffer circuit 46, the 7th buffer circuit 47 and the 8th buffer circuit 48.
Circuit block diagram in conjunction with the accompanying drawings, further analyze the principle of work of warning system:
Crime characteristics according to offender's theft transformer, the anti-theft feature of the long-range integrated warning system of power transformer of the present utility model is provided with three roads and detects the defence line, first road is that three-phase have a power failure not to be reported to the police simultaneously: the three-phase mains voltage of power transformer output sends first analog to digital conversion circuit 31 to and converts pulse signal with the input voltage respective frequencies to after three-phase voltage and power failure sensing circuit 21 detect, be sent to single-chip microcomputer 1 by first buffer circuit 41 again and analyze; Second road is that transformer tilts to report to the police: inclination sensor 24 detects the horizontal level signal of transformer, sends 34 shapings of first signal transformation circuit to, is sent to single-chip microcomputer 1 by the 4th buffer circuit 44 again and analyzes; The 3rd road is anti-theft wire short circuit or the burn out detection that is wrapped on the transformer case: when anti-theft wire 25 open circuits or short circuit, signal is sent to single-chip microcomputer 1 by buffer circuit the 5th again and analyzes through 35 shapings of secondary signal shaping circuit.When one of them phenomenon took place, single-chip microcomputer 1 sent instruction and corresponding short message content to GSM transceiver module 5, is sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, makes the related personnel in time handle thievery, stoped loss to enlarge.Audio alert loudspeaker 10 send chimes of doom simultaneously, deterrence offender's larceny.The personnel that receive a crime report connect back audio alert loudspeaker 10 and stop chimes of doom automatically and available handsets or phone dial the telephone number of this warning system, change talking state over to, and the personnel that receive a crime report carry out on-site monitoring by microphone 11, and propaganda directed to communicate by audio alert loudspeaker 10.
Be provided with the three lines of defence and guarantee that transformer takes place not fail to report when stolen, and solved the wrong report phenomenon that the sensor of other burglar alarm uses infrared ray sensor, microwave remote sensor and shock sensor to exist.
If the offender is before committing theft, when earlier this warning system body being destroyed, as cut off the lead-in wire of any sensor, after single-chip microcomputer 1 detects fault-signal, send instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel.Cover as this warning system body is opened, alarm lid magnetic switch 29 transmits signal to single-chip microcomputer 1 immediately, after single-chip microcomputer 1 detects signal, send instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, before this warning system is destroyed, in time notify the related personnel.The signal emitting antenna of this warning system adopts concealed design, and the delinquency prevention molecule destroys the emitting antenna of warning system earlier, makes the warning message of warning system can not be sent to GSM common mobile 6, loses warning function.
Transformer is when operate as normal, the three-phase mains voltage of transformer output sends first analog to digital conversion circuit 31 to and converts pulse signal with input voltage height respective frequencies to after three-phase voltage and power failure sensing circuit 21 detect, being sent to single-chip microcomputer 1 by first buffer circuit 41 again analyzes, when output wherein one mutually or two-phase or three-phase voltage when being higher than the overvoltage setting value or being lower than under-voltage setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel in time to take measures.
Transformer is when operate as normal, the threephase load electric current of transformer sends second analog to digital conversion circuit 32 to and converts pulse signal with load current size respective frequencies to after load current sensor 22 detects, being sent to single-chip microcomputer 1 by second buffer circuit 42 again analyzes, when output wherein one mutually or the electric current of two-phase or three-phase when being higher than the overload setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel in time to take measures.
Transformer is when operate as normal, the ground wire electric current of transformer sends the 3rd analog to digital conversion circuit 33 to and converts pulse signal with load current size respective frequencies to after ground wire current sensor 23 detects, being sent to single-chip microcomputer 1 by the 3rd buffer circuit 43 again analyzes, when electric leakage or multipoint earthing of iron core take place transformer, when the ground wire electric current surpasses setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel in time to take measures.
Oil-filled transformer is when operate as normal, oil level in the oil tank of transformer sends 36 shapings of the 3rd signal transformation circuit to after liquid level sensor 26 detects, being sent to single-chip microcomputer 1 by the 6th buffer circuit 46 again analyzes, when the oil level in the oil tank of transformer is lower than setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel in time to take measures.
Transformer is when operate as normal, the digital temperature sensor 27 of the position that temperature is the highest when being installed in the work of transformer oil reservoir tip position or transformer, the working temperature of transformer is converted to digital signal, being sent to single-chip microcomputer 1 by the 7th buffer circuit 47 analyzes, when the temperature of transformer is higher than the overtemperature alarm setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel in time to take measures.When the temperature of transformer continues to be increased to overtemperature tripping operation setting value, single-chip microcomputer 1 sends instruction and corresponding short message content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel, and to controlling output circuit 9 output signals, the action of driving tripping relay, disconnecting consumers guarantees that transformer is not burnt.
The long-range integrated warning system of power transformer of the present utility model also has been equipped with five tunnel backup sensors input ports 30, is connected to single-chip microcomputer 1 by the 8th buffer circuit 48.Port can be used to connect transformer gas relay contact, pressure releasing of brake contact, metering bin door switch, the pressure-type thermometer contact, external equipments such as infrared switch, the user is according to equipment requirements that port connect, store with the mobile phone editor and by alarming short message content to the data-carrier store 12 of this warning system of GSM common mobile 6 transmission corresponding ports, behind contact or switch motion that port connects, single-chip microcomputer 1 sends instruction and corresponding port short messages stored content to GSM transceiver module 5, be sent to the receive a crime report mobile phone or the center 7 of receiving a crime report by GSM common mobile 6, notify the related personnel.
The long-range integrated warning system of power transformer of the present utility model at power transformer output three-phase voltage is just often powered by the power supply of transformer output, and to high capacity full sealed non-maintenance charge in batteries standby in the warning system.During the power transformer power failure, automatically be transformed into the standby battery power supply, the accumulator continued power of sufficient electrical energy can reach more than 15 days, in the time of can surpassing more than 10 days as power off time, can insert solar battery group at the built-in solar cell interface of this warning system, charge to standby battery when bright and clear by day, by standby battery continued power, guarantee warning system in the monitoring state during insufficient light night.Because of this warning system for a long time in outdoor application, for preventing that winter, temperature was crossed the low internal circuit operate as normal that influences, this warning system is provided with and adds circuit temperature automatically, when warning system temperature inside sensor 28 detects temperature and is lower than 0 ℃, automatically start the resistance work of heating, when internal temperature is higher than 10 ℃, stop to heat.
The transformer operational factor alarming value of the long-range integrated warning system monitoring of power transformer of the present utility model all can be set by the user, the user is sent to the telephone number of this warning system by GSM common mobile 6 with mobile phone or other corresponding note of terminal 7 editors of receiving a crime report, send single-chip microcomputer 1 to after GSM transceiver module 5 receives data in the warning system, single-chip microcomputer 1 is stored in user's set-point data in the storer 12.The terminal telephone number of receiving a crime report that presets in the warning system can be set many sets of numbers, and by user's setting before warning system is used, the setting of establishing method same parameter alarming value guarantees that alarming short message that warning system sends is by reliable reception.
This warning system has regularly inspection function, and when the transformer operate as normal, warning system sent the information of instruction and transformer operate as normal according to the data of each road sensor input to GSM transceiver module 5 by single-chip microcomputer 1 every 24 hours, notified the related personnel.
This warning system also is provided with the long-range function of setting up defences, withdraw a garrison, control output.In the time of need safeguarding transformer as the maintenance personal, warning system may run into the maintenance personal transformer is carried out the operation that three-phase do not have a power failure simultaneously and sends the theft alarming short message.Before the maintenance personal has a power failure, be sent to warning system with the mobile phone editor code note of withdrawing a garrison by GSM common mobile 6, warning system withdraws from monitor state.After maintenance is finished, be sent to warning system with the mobile phone editor code note of setting up defences by GSM common mobile 6, warning system reenters monitor state.The related personnel also can trip, close a floodgate and control by the control output state of this operation measure to warning system.
Controlled by unrelated person for preventing warning system, this warning system is provided with user cipher, when having only modification setting value note that the related personnel sends or the password of controlling note correct, could make amendment or the duty of warning system is controlled projects such as the pre-set parameter in the warning system, telephone numbers.
Claims (6)
1, the long-range integrated warning system of a kind of power transformer is characterized in that comprising: single-chip microcomputer (1), sensor (2), GSM transceiver module (5), GSM common mobile (6) and the terminal of receiving a crime report (7);
GSM transceiver module (5) links to each other with single-chip microcomputer (1) with sensor (2), and GSM transceiver module (5) and the terminal of receiving a crime report (7) link with GSM common mobile (6) wireless telecommunications.
2, the long-range integrated warning system of power transformer as claimed in claim 1 is characterized in that: described sensor (2) comprising: three-phase voltage and power failure sensing circuit (21), threephase load current sensor (22), ground wire current sensor (23), inclination sensor (24), anti-theft wire (25), liquid level sensor (26), digital temperature sensor (27), alarm internal temperature sensor (28), alarm lid magnetic switch (29) and backup sensors input port (30); The output terminal of described three-phase voltage and power failure sensing circuit (21), threephase load current sensor (22) and ground wire current sensor (23) is connected with analog to digital conversion circuit respectively, the output terminal of each analog to digital conversion circuit is connected with buffer circuit in turn, and the output terminal of each buffer circuit links to each other with single-chip microcomputer 1 successively; The output terminal of described inclination sensor (24), anti-theft wire (25) and liquid level sensor (26) is connected with signal transformation circuit respectively, and the output terminal of each signal transformation circuit is connected with buffer circuit in turn, and the output terminal of each buffer circuit links to each other with single-chip microcomputer 1 successively; The output terminal of digital temperature sensor (27) is connected with buffer circuit, and the output terminal of this buffer circuit links to each other with single-chip microcomputer 1; The output terminal of alarm internal temperature sensor (28) is connected with signal transformation circuit, and the output terminal of this signal transformation circuit links to each other with single-chip microcomputer 1; Alarm lid magnetic switch (29) links to each other with single-chip microcomputer (1); Backup sensors input port (30) links to each other with single-chip microcomputer (1) through buffer circuit.
3, the long-range integrated warning system of power transformer as claimed in claim 1 or 2, it is characterized in that: this warning system also comprises: the audio alert loudspeaker (10) that link to each other with GSM transceiver module (5) with single-chip microcomputer (1), and the microphone input circuit (11) that links to each other with GSM transceiver module (5).
4, the long-range integrated warning system of power transformer as claimed in claim 1 or 2, it is characterized in that: this warning system also comprises: the data-carrier store (12) that links to each other with single-chip microcomputer (1), and the concealed antenna that links to each other with GSM transceiver module (5).
5, the long-range integrated warning system of power transformer as claimed in claim 1, it is characterized in that: this warning system also comprises: be serially connected with signal processing circuit (3) and signal isolation circuit (4) between sensor (2) and the single-chip microcomputer (1).
6, the long-range integrated warning system of power transformer as claimed in claim 1 or 2, it is characterized in that: this warning system also comprises: the controlling output circuit (9) that links to each other with single-chip microcomputer (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201998010U CN201181513Y (en) | 2007-11-25 | 2007-11-25 | Remote integrated warning system of power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201998010U CN201181513Y (en) | 2007-11-25 | 2007-11-25 | Remote integrated warning system of power transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201181513Y true CN201181513Y (en) | 2009-01-14 |
Family
ID=40251011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201998010U Expired - Fee Related CN201181513Y (en) | 2007-11-25 | 2007-11-25 | Remote integrated warning system of power transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201181513Y (en) |
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136757A (en) * | 2010-01-26 | 2011-07-27 | 陈家斌 | Intelligent control device of 6-20kV ring network switch cabinet |
| CN102213620A (en) * | 2010-04-08 | 2011-10-12 | 陈家斌 | Overtemperature remote alarm for distribution transformer |
| CN102213731A (en) * | 2010-04-06 | 2011-10-12 | 陈家斌 | Overcurrent phase-missing remote alarm for distribution transformer |
| CN102213621A (en) * | 2010-04-09 | 2011-10-12 | 陈家斌 | Remote overheating alarm device of outlet joint of distribution transformer |
| CN102427278A (en) * | 2011-12-13 | 2012-04-25 | 河南省电力公司平顶山供电公司 | Current limit-exceeding message supervising system for outdoor low-voltage contact control cabinet of box-type transformer |
| CN102522823A (en) * | 2011-12-24 | 2012-06-27 | 淅川县电业局 | Over-limit current message monitoring system of outdoor low-voltage box transformer substation connection control cabinet |
| CN103487168A (en) * | 2013-09-30 | 2014-01-01 | 河南开启电力实业有限公司 | Temperature rise on-line detecting device for distribution transformer |
| CN104408846A (en) * | 2014-10-29 | 2015-03-11 | 国家电网公司 | Anti-theft system |
| CN105118252A (en) * | 2015-07-14 | 2015-12-02 | 国家电网公司 | Unattended transformer substation automatic drainage system fault alarm device |
| CN105302049A (en) * | 2015-12-03 | 2016-02-03 | 广州供电局有限公司 | Transformer station environment monitoring device |
| CN105528869A (en) * | 2014-10-23 | 2016-04-27 | 国家电网公司 | Alarm device of oil-immersed transformer |
| CN106338632A (en) * | 2016-11-22 | 2017-01-18 | 陕西诺维北斗信息科技股份有限公司 | Precise-Beidou-positioning-based intelligent grid management host |
| CN109141656A (en) * | 2018-08-01 | 2019-01-04 | 宁国市挚友合金钢材料有限公司 | A kind of Operation Condition of Power Transformers alarm |
-
2007
- 2007-11-25 CN CNU2007201998010U patent/CN201181513Y/en not_active Expired - Fee Related
Cited By (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136757A (en) * | 2010-01-26 | 2011-07-27 | 陈家斌 | Intelligent control device of 6-20kV ring network switch cabinet |
| CN102213731A (en) * | 2010-04-06 | 2011-10-12 | 陈家斌 | Overcurrent phase-missing remote alarm for distribution transformer |
| CN102213620A (en) * | 2010-04-08 | 2011-10-12 | 陈家斌 | Overtemperature remote alarm for distribution transformer |
| CN102213621A (en) * | 2010-04-09 | 2011-10-12 | 陈家斌 | Remote overheating alarm device of outlet joint of distribution transformer |
| CN102427278A (en) * | 2011-12-13 | 2012-04-25 | 河南省电力公司平顶山供电公司 | Current limit-exceeding message supervising system for outdoor low-voltage contact control cabinet of box-type transformer |
| CN102522823A (en) * | 2011-12-24 | 2012-06-27 | 淅川县电业局 | Over-limit current message monitoring system of outdoor low-voltage box transformer substation connection control cabinet |
| CN103487168A (en) * | 2013-09-30 | 2014-01-01 | 河南开启电力实业有限公司 | Temperature rise on-line detecting device for distribution transformer |
| CN105528869A (en) * | 2014-10-23 | 2016-04-27 | 国家电网公司 | Alarm device of oil-immersed transformer |
| CN104408846A (en) * | 2014-10-29 | 2015-03-11 | 国家电网公司 | Anti-theft system |
| CN105118252A (en) * | 2015-07-14 | 2015-12-02 | 国家电网公司 | Unattended transformer substation automatic drainage system fault alarm device |
| CN105302049A (en) * | 2015-12-03 | 2016-02-03 | 广州供电局有限公司 | Transformer station environment monitoring device |
| CN106338632A (en) * | 2016-11-22 | 2017-01-18 | 陕西诺维北斗信息科技股份有限公司 | Precise-Beidou-positioning-based intelligent grid management host |
| CN109141656A (en) * | 2018-08-01 | 2019-01-04 | 宁国市挚友合金钢材料有限公司 | A kind of Operation Condition of Power Transformers alarm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201181513Y (en) | Remote integrated warning system of power transformer | |
| CN105261132A (en) | Transformer intelligent antitheft system | |
| CN204390383U (en) | A kind of silo remote real-time monitoring warning system | |
| CN203722669U (en) | Power tunnel semi-offline manhole cover monitoring system | |
| CN102760348A (en) | Remote monitoring and alarm device for transformer substation | |
| CN103366479B (en) | The tamper-proof theft protection long-distance monitorng device of transformer | |
| CN201045672Y (en) | Road lamp, electric wire and distribution equipment wireless antitheft alarm system | |
| CN201051614Y (en) | Multi-function intelligent theftproof alarming and distribution system | |
| CN201138498Y (en) | Theft-resisting early alarming apparatus of distributing transformer based on GSM technique | |
| CN201514691U (en) | Electrical anti-theft call system based on GSM network | |
| CN202059153U (en) | Leakage protector suitable for over-current inverse time lag protection circuit | |
| CN201673567U (en) | Pre-alarm security system of power transformer | |
| CN201853307U (en) | Wireless remote burglar electric warning control system | |
| CN208655010U (en) | A kind of remote auto switch | |
| CN106910306A (en) | A kind of base station anti-theft electric system | |
| CN202094598U (en) | Rated current adjustable leakage protector | |
| CN204719519U (en) | A kind of oil well intelligent wireless monitor control system | |
| CN108564752A (en) | Cable anti-theft system based on NB-IoT and its alarm method | |
| CN201185340Y (en) | Anti-theft alarm protecting equipment | |
| CN204102271U (en) | Anti-theft alarm device for temporary cable in construction site | |
| CN101916491A (en) | Intelligent protecting and monitoring system of water meter | |
| CN201876952U (en) | Intelligent security monitoring system for water meter | |
| CN202677593U (en) | Remote monitoring alarm device of transformer substation | |
| CN202305626U (en) | Intelligent automatic management system for preventing stealing electricity | |
| CN202059148U (en) | Leakage protector suitable for data communication |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090114 Termination date: 20121125 |