CN1264022C - Failure analysis monitoring method and system device used on power supply network - Google Patents
Failure analysis monitoring method and system device used on power supply network Download PDFInfo
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- CN1264022C CN1264022C CN 03136931 CN03136931A CN1264022C CN 1264022 C CN1264022 C CN 1264022C CN 03136931 CN03136931 CN 03136931 CN 03136931 A CN03136931 A CN 03136931A CN 1264022 C CN1264022 C CN 1264022C
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Abstract
The present invention relates to a method and a system device for monitoring failure analysis in a power supply network. Current sensors are respectively installed at an input branch terminal of a power line required monitoring and an outlet terminal of a monitor point users' electric energy metering device in the power supply network, an intelligent monitor is used for calculating current difference of a vector current signal in a circuit, and current difference calculation data are timed and synchronized to respectively transmit to a system central station by a private or a public wireless communication network. The system central station collects and analyzes the collected current difference calculation data according to a preset program, records the time-varying function curve of the current difference parameters of each of monitor points in real time, analyzes and prompts or alarms that the power utilization condition of one monitory point in the power supply network is in a normal or a failure condition in some a time period.
Description
Technical field:
The present invention is mainly used in monitoring, feedback, analysis and the warning to the unexpected fault of supply network and illegal stealing situation, belongs to wireless electricity anti-theft system method and system device and makes the field.
Background technology:
The line loss of electric energy is comparatively serious in the present supply network, and the size of line loss is one of important composite economic indicator estimating supply network.According to the analysis of power department, real line loss is not for the reason with electric line itself, and to the hardware modification of city and rural area two big electrical networks, real line loss is under control substantially by on a large scale for country and place.But, owing to, become the main cause of present grid line loss for unexpected fault and the loss that illegal electricity filching behavior is caused with electric line.Electric energy meter with anti-stealing electricity function of Xiao Shouing and device in the market with similar functions, only limit to the electricity filching behavior of use side is write down or monitors, technical stealing, the stealing of carrying out previously in the end of incoming cables of anti-electricity-theft ammeter (device) and the electricity filching behavior by force that destroys anti-electricity-theft instrument and device are then seemed powerless.Therefore, how to realize the line loss management of the confession power utilization network of highly effective and safe, unexpected fault that occurs in monitoring rapidly, feedback, analysis and the warning electrical network and illegal electricity filching behavior, the energy loss that control causes owing to this respect reason, being a technical task that presses for solution that improves power supply enterprise's economic benefit, also is present power supply enterprise one of unsolved technical barrier still.
Summary of the invention:
The objective of the invention is by design and dispose a cover intellectualized system to make electric administrative department can obtain the information of the electricity consumption situation of each power consumer in institute's compass of competency quickly and accurately, whether the electric power supply of accurately differentiating each branched line is under the management and state of a control of expection, so that unusual circumstance can take appropriate measures rapidly and treating method.
Overall technological scheme of the present invention is: thus by being gathered, calculate, handle the electricity consumption situation of differentiating monitored point, the vector current signal in the circuit of the line of electric force of supply network input divergent ends circuit and certain user's electric power meter leading-out terminal back whether is in normal slave mode.
In order to realize above-mentioned technical scheme, the present invention has taked the power consumer that need monitor certain, in the line of electric force input divergent ends of supply network and the leading-out terminal of electric power meter current sensor is installed respectively, current sensor is input to the intellectual monitoring device with the vector current signal in the power circuit, the intellectual monitoring device flows the difference data analysis to the size and the phase place of the vector current in the lead, to flow the difference analysis data by wireless transmitter module and periodically launch the intelligent analyzer that is transferred to master station of system, according to predefined program, the stream difference data that system imports the leading-out terminal of divergent ends and electric power meter to the line of electric force of collecting carries out computational analysis and processing, fast, correctly determine the normal condition of power utilization network, malfunction and stealing suspicion state, and point out or report to the police, therefore, the present invention is a kind of safety utilization of electric power management method and system and device of monitoring leak current fault and stealing suspicion completely.
Technical solution of the present invention: the one, utilize current phasor and null principle in each transmission pressure of normal ac power supply line, that is:
Have for the single phase power supply circuit: I
L+ I
N=0 ... formula (1)
Have for three-way three-wire system circuit: I
A+ I
B+ I
C=0 ... formula (2)
Have for three-way four wire line: I
A+ I
B+ I
C+ I
N=0 ... formula (3)
The 2nd, utilize unified nothing to be branched to the principle that electric current equates in the line.
When the vector current signal that offers the intellectual monitoring device when current sensor meets above-mentioned formula [(1), (2), (3) ,] by analysis, the intellectual monitoring device will flow the difference analysis data and be transferred to master station of system with the communication periodic transmission, and system will report that the electricity consumption situation of monitored point is normal; The vector current signal that offers the intellectual monitoring device when current sensor does not meet above-mentioned formula [(1), (2), (3) ,] by analysis, when the intellectual monitoring device will flow the difference analysis data transmission to master station of system, the intelligent analyzer of system will be according to the program of prior design, and the electricity consumption situation of reporting monitored point is to be in which kind of malfunction; When same separate lead is analyzed when inconsistent through the intelligent analyzer of master station of system at the current sensor of the leading-out terminal of line of electric force input divergent ends and electric power meter and current signal that the intellectual monitoring device monitors, system just can conclude between these 2 of the leading-out terminals of line of electric force input divergent ends and electric power meter electric leakage or stealing electricity phenomenon.In addition, the present invention can be according to the program of prior design, set different fault alarm absolute ratings, the time dependent function curve of vector current difference parameter that as required can each control point of real time record simultaneously with electric process, so that the electricity consumption situation in a period of time of certain control point is analyzed, to be fit to the demand of the management of power use widely and analysis.
Technical scheme of the present invention: 1. a kind of fault analysis method for supervising that is used for supply network; with the leading-out terminal of the electric power meter that needs monitoring current sensor is installed respectively in the line of electric force input divergent ends that supply network need be monitored; the vector current signal of the circuit that current sensor is detected with the intellectual monitoring device flows difference and calculates; by special-purpose or public cordless communication network respectively regularly and synchronously will flow and differ from computational data and be transferred to master station of system; master station of system carries out Macro or mass analysis according to predefined program to the stream difference computational data of collecting and handles; the time dependent function curve of stream difference parameter of each control point of real time record is in normal or malfunction is analyzed and pointed out or report to the police to the electricity consumption situation of section sometime of certain control point of supply network.For each control point, the current sensor of line of electric force input divergent ends, the stream difference computational data that the vector current signal of divergent ends imported line of electric force by the intellectual monitoring device periodically are transferred to master station of system; The current sensor of electric power meter leading-out terminal, intellectual monitoring device with the stream difference computational data of the vector current signal of the leading-out terminal of user's electric power meter periodically and and the intellectual monitoring device of line of electric force input divergent ends synchronously be transferred to master station of system.The intellectual monitoring device mainly is made up of stream difference analysis module and wireless transmitter module, the stream difference computational data that wireless transmitter module can periodically be launched transmission and monitored.Master station of system is made up of intelligent analyzer and system host, intelligent analyzer is made up of wireless receiving module and failure analysis module, intelligent analyzer by special-purpose or public wireless communication networks periodically the stream difference computational data of the vector current of the stream difference computational data of the vector current of the line of electric force input divergent ends of automatic reception control point and user's measuring apparatus leading-out terminal carry out Macro or mass analysis and handle.The private radio communication net refers to be specially the wireless communication networks of electric power system configuration, and the public radio communication net refers to the GSM/CDMA wireless communication networks of mobile operator.System host can automatically perform the application software that the electricity consumption situation is normal or malfunction is pointed out or reported to the police by general robot calculator with according to the information that intelligent analyzer is exported.2. it comprises the current sensor (5) that is installed in line of electric force input divergent ends, be installed in the intellectual monitoring device (6) that line of electric force input divergent ends is made up of stream difference analysis module and wireless transmitter module, be installed in the current sensor (8) on the leading-out terminal of electric power meter, be installed in the intellectual monitoring device (9) on the leading-out terminal of electric power meter, the intelligent analyzer (12) of the master station of system that forms by wireless receiving module and failure analysis module, main frame of master station of system (11) and system software, special-purpose or public cordless communication network (4), two intellectual monitoring devices (6,9) respectively to respective electrical flow sensor (5,8) the vector current signal of Cai Jiing flows difference calculating, and will flow the difference result of calculation be transmitted into master station of system by wireless communication networks, the intelligent analyzer of master station of system receives two intellectual monitoring devices (6 respectively by wireless communication networks, 9) the stream difference computational data of sending gathers computing, the analyzing and processing that system host (11) carries out the electricity consumption situation according to the data that gather calculating and the prior program of setting of intelligent analyzer (12).The allocation plan one of the current sensor (5) of the line of electric force of each control point input divergent ends and the current sensor (8) of measuring apparatus leading-out terminal: respectively dispose one group of 2 current sensor, one group of 3 current sensor or one group of 4 current sensor respectively during the supply line of single-phase, phase three-wire three or three-phase and four-line, promptly all dispose a current sensor on every electric power conductor; Allocation plan two: each sensing point be electric power input divergent ends and electric power meter leading-out terminal each only dispose a current sensor.Being installed in the current sensor (5) of line of electric force input divergent ends and intellectual monitoring device (6) utilizes the electric pole of high-altitude stringing to be installed in overhead higher obvious place or to be installed in the bifurcated wiring cabinet of the hidden underground line of electric force of underground cable interior or it is installed in the place that other unwarranted people can not easy operation; Be installed in the current sensor (8) of electric power meter and intellectual monitoring device (9) and be installed in position near user's electric power meter (7) leading-out terminal.
The present invention compares with background technology, owing to current sense technology, microcomputer data processing and wireless communication technology are integrated into an intellectualizing system that can obtain supply network electricity consumption condition information fast, therefore can obtain the relevant information of supply line's operation in real time in time.The present invention installs current sensor and intellectual monitoring device respectively simultaneously at the leading-out terminal of line of electric force input divergent ends and electric energy metrical, the possibility that makes anti-electricity-theft device be destroyed by electricity filching person is reduced to minimum, because no matter how electricity filching person sets the axe to above-mentioned current sensor and intellectual monitoring device, master station of system can both and report to the police the place that locking is broken down in very first time discovery.Therefore the present invention especially to the supply line between line of electric force bifurcated input end is before the end of incoming cables of the electric power meter of power consumer leak electricity, the situation of stealing can feed back, report to the police moment fast, be anti-electricity-theft (electric leakage) pick-up unit of existing supply or relevant instrument can't finish, solved that electric system is wanted to solve for a long time and the technical barrier that do not have solution.Secondly system of the present invention can carry out combination and compatibility with the power consuming administrative system of existing power department.
Description of drawings:
Fig. 1 is the functional schematic that the present invention is used for the supply network failure monitoring system.
Fig. 2 is the principle of work block diagram that the present invention is used for the supply network failure monitoring system.
Embodiment:
Embodiment 1: with reference to attached Fig. 1 and 2.The fault analysis method for supervising that is used for supply network, the leading-out terminal of the line of electric force input divergent ends that need monitor at supply network and control point user's electric power meter is installed current sensor respectively, the vector current signal of the circuit that current sensor is detected with the intellectual monitoring device flows difference and calculates, by special-purpose or public cordless communication network respectively regularly and synchronously will flow poor computational data and be transferred to master station of system; According to predefined program; master station of system carries out intellectual analysis to the stream difference computational data of collecting and handles; the time dependent function curve of stream difference parameter of each control point of real time record is in normal or malfunction is analyzed and pointed out or report to the police to the electricity consumption situation of section sometime of certain control point of supply network.
For each control point, the current sensor of line of electric force input divergent ends, the stream difference computational data that the vector current signal of divergent ends imported line of electric force by the intellectual monitoring device periodically are transferred to master station of system; The current sensor of measuring apparatus leading-out terminal, intellectual monitoring device with the stream difference computational data of the vector current signal of the leading-out terminal of user's electric power meter periodically and and the intellectual monitoring device of line of electric force input divergent ends synchronously be transferred to master station of system; The intellectual monitoring device mainly is made up of stream difference analysis module and wireless transmitter module.
Master station of system is made up of intelligent analyzer and system host, and intelligent analyzer is made up of wireless receiving module and failure analysis module, the stream difference computational data that wireless transmitter module can periodically be launched transmission and monitored; Intelligent analyzer by special-purpose or public wireless communication networks periodically the stream difference computational data of the vector current of the stream difference computational data of the vector current of the line of electric force input divergent ends of automatic reception control point and user's measuring apparatus leading-out terminal gather computing.
Embodiment 2: be used for the fault analysis monitoring system device of supply network, be made up of following each several part; Be installed in the current sensor (5) of line of electric force input divergent ends, be installed in the intellectual monitoring device (6) that line of electric force input divergent ends is made up of stream difference analysis module and wireless transmitter module, be installed in the current sensor (8) on the leading-out terminal of electric power meter, be installed in the intellectual monitoring device of forming by stream difference analysis module and wireless transmitter module on the leading-out terminal of electric power meter (9), the intelligent analyzer (12) of the master station of system that forms by wireless receiving module and failure analysis module, main frame of master station of system (11) and system software, special-purpose or public cordless communication network (4) is formed.Configuration to the current sensor (8) of the current sensor (5) of the line of electric force of each control point input divergent ends and measuring apparatus leading-out terminal, its scheme one is: respectively dispose one group of 2 current sensor, one group of 3 current sensor or one group of 4 current sensor respectively during the supply line of single-phase, phase three-wire three or three-phase and four-line, promptly all dispose a current sensor on every electric power conductor; Scheme two is: each sensing point be line of electric force input divergent ends and electric power meter leading-out terminal each only dispose a current sensor.
High voltage supply network (1) through transformer (2) to low-voltage power network (3) transmission of electric energy, because power consumer has a plurality of, for Fig. 1 for the purpose of simple and easy only draws wherein two (being user 1 and user 2), be example as needing to carry out the monitoring of electricity consumption situation on the supply network and the point of control explains orally with user 2 below.The metering result of electric energy is the functional value of voltage, electric current and these three variablees of electricity consumption time generally speaking, because voltage and time are Chang Bianliang clocklike, electric current is the power consumption argument of function.If the condition of the vector current coincidence formula of the supply line of a monitored point [(1), (2), (3)], the electricity consumption situation that just can judge this point is to be under the normal state.The effect of current sensor (5) is the working condition that detects the supply line of user 2 line of electric force input divergent ends, it is installed in the divergent ends that the Utilities Electric Co. power transmission line is introduced the user, utilizes the electric pole of high-altitude stringing to be installed in overhead higher obvious place or is installed in the bifurcated wiring cabinet of the hidden underground line of electric force of underground cable or it is installed in the place that other unwarranted people can not easy operation.The effect of current sensor (8) is the working condition that detects user 2 usefulness electric line, and it is installed in the position near user's measuring apparatus (7) leading-out terminal.
Current sensor (5) and current sensor (8) have two kinds of allocation plans, first kind of allocation plan is: for single-phase, respectively dispose one group of 2 current sensor during the supply line of phase three-wire three or three-phase and four-line respectively, one group of 3 current sensor or one group of 4 current sensor, be all to dispose a current sensor on the every electric power conductor, this allocation plan not only can detect by formula [(1), (2), (3)], and can detect the signal of the size of current of two points in the same separate lead of line of electric force input divergent ends and electric power meter leading-out terminal away from the stream difference data of detected vector current; Second kind of allocation plan is: each sensing point only disposes a current sensor.Second kind of allocation plan is suitable for the transmission line of electricity of polycore cable and the power supply of lead mutual insulating, the transmission line of electricity of inapplicable employing nuditing wire.
The effect of intellectual monitoring device (6) and intellectual monitoring device (9) is the vector current signal that current sensor (5) and current sensor (8) are gathered to be flowed difference calculate, and will flow and differ from result of calculation and be transmitted into master station of system by wireless communication networks.Intellectual monitoring device (6) nestles up current sensor (5) and installs, and intellectual monitoring device (9) nestles up current sensor (8) and installs, and its installation requirement is the same with corresponding current sensor installation requirement.The hardware and software configuration of intellectual monitoring should be determined according to the allocation plan of current sensor, when adopting the allocation plan of first kind of current sensor, the intellectual monitoring device should have and the same input interface number of current sensor quantity that is disposed, and should possess the vector calculus function.
Wireless telecommunications net (4) can utilize public radio communication nets such as the mobile communication GSM of ready-made mobile operator or CDMA, also can special-purpose wireless communication networks be installed separately to no board of trustee application channel.The effect of the intelligent analyzer of master station of system (12) is to receive the stream difference computational data of intellectual monitoring device (6) and (9) sending respectively by wireless communication networks to gather computing.System host (11) is according to the data that gather calculating of intelligent analyzer (12) and the program of setting in advance, carry out the analyzing and processing of electricity consumption situation: the one, change the function curve of drawing the electricity consumption situation in time according to each control point stream difference parameter, the 2nd, carry out the intellectuality of electricity consumption situation according to the variation of stream difference parameter and differentiate.
Be that example explains orally with first kind of current sensor allocation plan below, when all being in normal condition when supply line with electric line, the vector current signal that each current sensor collects must satisfy the condition of formula [(1), (2), (3)].When the stream difference parameter that feeds back to intelligent analyzer (12) when intellectual monitoring device (6) and intellectual monitoring device (9) does not satisfy the condition of formula [(1), (2), (3)], can come to set in advance discrimination principle like this: 1. the line of electric force input divergent ends vector current signal leading-out terminal vector current signal that satisfies formula [(1), (2), (3)], user's electric power meter does not satisfy formula [(1), (2), (3)], can judge the user electric power meter the leading-out terminal back take place with electric line unusual; 2. line of electric force input divergent ends vector current signal does not satisfy formula [(1), (2), (3)] and the leading-out terminal vector current signal of user's electric power meter satisfies formula [(1), (2), (3)], can judge line of electric force input divergent ends to taking place unusually with electric line between the end of incoming cables of user's electric power meter, general anti-electricity-theft device and instrument can't detect this type of situation; 3. the leading-out terminal vector current signal of line of electric force input divergent ends vector current signal and user's electric power meter does not satisfy formula [(1), (2), (3)], can judge that line of electric force input divergent ends with electric line abnormal conditions takes place all to the leading-out terminal back of usefulness electric line between the end of incoming cables of user's electric power meter and user's electric power meter.The stream difference parameter limit value that master station of system detects based on mentioned above principle and intellectual monitoring device is reported time, place and the property class that takes place for the situations such as electric leakage, short circuit or stealing suspicion in the electricity consumption circuit network respectively.
What should be understood that is: the foregoing description is just to explanation of the present invention, rather than limitation of the present invention, and any innovation and creation that do not exceed connotation of the present invention all should fall into protection scope of the present invention.
Claims (9)
1; a kind of fault analysis method for supervising that is used for supply network; it is characterized in that: with the leading-out terminal of the electric power meter of needs monitoring current sensor is installed respectively in the line of electric force input divergent ends that supply network need be monitored; the vector current signal of the circuit that current sensor is detected with the intellectual monitoring device flows difference and calculates; by special-purpose or public cordless communication network respectively regularly and synchronously will flow and differ from computational data and be transferred to master station of system; master station of system carries out Macro or mass analysis according to predefined program to the stream difference computational data of collecting and handles; the time dependent function curve of stream difference parameter of each control point of real time record is in normal or malfunction is analyzed and pointed out or report to the police to the electricity consumption situation of section sometime of certain control point of supply network.
2, the fault analysis method for supervising of supply network according to claim 1, it is characterized in that: for each control point, the current sensor of line of electric force input divergent ends, the stream difference computational data that the vector current signal of divergent ends imported line of electric force by the intellectual monitoring device periodically are transferred to master station of system; The current sensor of electric power meter leading-out terminal, intellectual monitoring device with the stream difference computational data of the vector current signal of the leading-out terminal of user's electric power meter periodically and and the intellectual monitoring device of line of electric force input divergent ends synchronously be transferred to master station of system.
3, the fault analysis method for supervising of supply network according to claim 2, it is characterized in that: the intellectual monitoring device is mainly by the forming of stream difference analysis module and wireless transmitter module, the stream difference computational data that wireless transmitter module can periodically be launched transmission and monitored.
4, the fault analysis method for supervising of supply network according to claim 1 and 2, it is characterized in that: master station of system is made up of intelligent analyzer and system host, intelligent analyzer is made up of wireless receiving module and failure analysis module, intelligent analyzer by special-purpose or public wireless communication networks periodically the stream difference computational data of the vector current of the stream difference computational data of the vector current of the line of electric force input divergent ends of automatic reception control point and user's measuring apparatus leading-out terminal carry out Macro or mass analysis and handle.
5, the fault analysis method for supervising of supply network according to claim 1 is characterized in that: the private radio communication net refers to be specially the wireless communication networks of electric power system configuration, and the public radio communication net refers to the GSM/CDMA wireless communication networks of mobile operator.
6, the fault analysis method for supervising of supply network according to claim 4 is characterized in that: system host automatically performs the application software that the electricity consumption situation is normal or malfunction is pointed out or reported to the police by general robot calculator with according to the information that intelligent analyzer is exported.
7, a kind of fault analysis monitoring system device that is used for supply network, it is characterized in that: it comprises the current sensor that is installed in line of electric force input divergent ends, be installed in the intellectual monitoring device that line of electric force input divergent ends is made up of stream difference analysis module and wireless transmitter module, be installed in the current sensor on the leading-out terminal of electric power meter, be installed in the intellectual monitoring device on the leading-out terminal of electric power meter, the intelligent analyzer of the master station of system that forms by wireless receiving module and failure analysis module, the main frame of master station of system and system software, special-purpose or public cordless communication network, two intellectual monitoring devices flow difference calculating to the vector current signal of corresponding current sensor collection respectively, and will flow the difference result of calculation be transmitted into master station of system by wireless communication networks, the intelligent analyzer of master station of system receives the stream difference computational data that two intellectual monitoring devices send respectively by wireless communication networks and gathers computing, and system host carries out the analyzing and processing of electricity consumption situation according to the data that gather calculating of intelligent analyzer and the program set in advance.
8, the fault analysis monitoring system device of supply network according to claim 7, it is characterized in that: the allocation plan one of the current sensor (5) of the line of electric force of each control point input divergent ends and the current sensor (8) of measuring apparatus leading-out terminal: respectively dispose one group of 2 current sensor, one group of 3 current sensor or one group of 4 current sensor respectively during the supply line of single-phase, phase three-wire three or three-phase and four-line, promptly all dispose a current sensor on every electric power conductor; Allocation plan two: each sensing point be line of electric force input divergent ends and electric power meter leading-out terminal each only dispose a current sensor.
9, according to the fault analysis monitoring system device of claim 7 or 8 described supply networks, it is characterized in that: be installed in the current sensor (5) of line of electric force input divergent ends and intellectual monitoring device (6) and utilize the electric pole of high-altitude stringing to be installed in overhead higher obvious place or to be installed in the bifurcated wiring cabinet of the hidden underground line of electric force of underground cable interior or it is installed in the place that other unwarranted people can not easy operation; Be installed in the current sensor (8) of electric power meter and intellectual monitoring device (9) and be installed in position near user's electric power meter (7) leading-out terminal.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03136931 CN1264022C (en) | 2003-05-22 | 2003-05-22 | Failure analysis monitoring method and system device used on power supply network |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03136931 CN1264022C (en) | 2003-05-22 | 2003-05-22 | Failure analysis monitoring method and system device used on power supply network |
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| Publication Number | Publication Date |
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| CN1479107A CN1479107A (en) | 2004-03-03 |
| CN1264022C true CN1264022C (en) | 2006-07-12 |
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| CN 03136931 Expired - Fee Related CN1264022C (en) | 2003-05-22 | 2003-05-22 | Failure analysis monitoring method and system device used on power supply network |
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| CN (1) | CN1264022C (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1314233C (en) * | 2004-06-11 | 2007-05-02 | 安徽鑫龙电器股份有限公司 | Network digital measuring and controlling system |
| CN1331294C (en) * | 2004-08-27 | 2007-08-08 | 江苏省电力公司南京供电公司 | Method for establishing electric network monitoring disaster back-up system |
| US7684441B2 (en) * | 2005-07-01 | 2010-03-23 | Bickel Jon A | Automated precision alignment of data in a utility monitoring system |
| CN101452637B (en) * | 2007-11-30 | 2012-07-04 | 北京市电力公司 | Centralized monitoring system and method for high-tension cable net |
| CN101566657B (en) * | 2008-04-22 | 2011-12-14 | 深圳浩宁达仪表股份有限公司 | Method and system for online metering and real-time monitoring of electric transmission line |
| CN102866289B (en) * | 2012-09-05 | 2014-10-29 | 山东康威通信技术股份有限公司 | Power cable sheath grounding current fault analysis method |
| CN104330701B (en) * | 2014-11-06 | 2017-05-24 | 扬州森源电气有限公司 | Single-phase fault monitoring wireless system for community and monitoring method thereof |
| CN104579868B (en) * | 2014-11-28 | 2016-08-24 | 广东电网有限责任公司电力调度控制中心 | Powerline network construction method based on pitch point importance |
| CN105372555B (en) * | 2015-11-05 | 2018-04-06 | 国网山西省电力公司大同供电公司 | A kind of electric power monitoring system with abort situation detection function |
| CN105915347A (en) * | 2016-04-19 | 2016-08-31 | 梅照付 | Control method for power electric wireless transmission device |
| CN106054004A (en) * | 2016-08-01 | 2016-10-26 | 国网安徽省电力公司凤台县供电公司 | User power data acquisition method and user power failure monitoring method |
| CN106330566A (en) * | 2016-09-13 | 2017-01-11 | 成都慧农信息技术有限公司 | Equipment used for on-line monitoring of power supply state and network state |
| CN110136413A (en) * | 2018-02-09 | 2019-08-16 | 上海宏英智能科技有限公司 | A kind of multi-functional data comparison system and its method |
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