CN105676064A - User-side leakage current monitoring method and system - Google Patents
User-side leakage current monitoring method and system Download PDFInfo
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- CN105676064A CN105676064A CN201610017799.4A CN201610017799A CN105676064A CN 105676064 A CN105676064 A CN 105676064A CN 201610017799 A CN201610017799 A CN 201610017799A CN 105676064 A CN105676064 A CN 105676064A
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- leakage current
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/08—Locating faults in cables, transmission lines, or networks
- G01R31/081—Locating faults in cables, transmission lines, or networks according to type of conductors
- G01R31/086—Locating faults in cables, transmission lines, or networks according to type of conductors in power transmission or distribution networks, i.e. with interconnected conductors
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
- G01R19/165—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values
- G01R19/16533—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application
- G01R19/16538—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies
- G01R19/16547—Indicating that current or voltage is either above or below a predetermined value or within or outside a predetermined range of values characterised by the application in AC or DC supplies voltage or current in AC supplies
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
Abstract
The application discloses a user-side leakage current monitoring method and system. The method comprises: leakage current information on a user side is collected; when the size of the leakage current is greater than a preset threshold, warning information is generated; the leakage current information and the warning information are collected and uploaded to a main station; and according to the leakage current information and the warning information, a potential fault point is located. The system comprises: a collector for collecting the leakage current information on the user side; a warning device for generating the warning information when the size of the leakage current is greater than the preset threshold; an uploading device for collecting the leakage current information and the warning information and uploading the leakage current information and the warning information to the main station; and a locating device used for locating the potential fault point according to the leakage current information and the warning information. The system can collect real-time user-side leakage current data and quickly locate the leakage fault point, reduces the time for looking for the fault point, reduces the time of labor and power failure, and improves the satisfaction of people.
Description
Technical field
The invention belongs to intelligent power grid technology field, particularly relate to a kind of user's side leakage current monitoring method and system.
Background technology
Along with the implementation of intelligent grid, according to the schemes call that intelligent grid is built by State Grid Corporation of China, China's electrical network will step into intellectualization times. Intelligent grid requires that the electrical equipment of hanging net operation allows for accepting Based Intelligent Control, and electrical network must using the information got from each equipment as controlling foundation. Wherein, communication and on-line monitoring, as the most direct mode obtaining facility information, are one of requisite configurations of grid equipment.
The total guarantor of intelligence has been realized in remote communicating function with part code insurance at present; can remotely check protector operation information and control protector; significantly improve RCD to the protective capability of platform district circuit, failure reason analysis ability; and can effectively reduce fault coverage, improve the efficiency of management and the service awareness of electricity net platform region. Along with people's improving constantly need for electricity and Electrical Safety, it is desirable to power supply department must grasp the line condition of each electricity consumption side at any time, it is ensured that power supply continuity.
But, can the Household electricity leakage protection device of current final stage user belongs to user's assets, there is certain difficulty in management, and always protect and it is critical only that installation rate and the operational percentage of Household electricity leakage protection device (family guarantor) by bringing normally into operation. The user that order foreground partition has under its command, once there is drain conditions, if the family of user side protects can not normally protect may result in always protects tripping operation, and can't determine the particular location that electric leakage occurs at present fast and effectively. Therefore, how the line electrical leakage stream situation of electricity consumption end domestic consumer is monitored in real time, have target go to search and fix a breakdown become a problem demanding prompt solution.
Summary of the invention
For solving the problems referred to above, the invention provides a kind of user's side leakage current monitoring method and system, it is capable of user's side leakage electricity real time data acquisition and quickly positions leak current fault point, shorten the investigation trouble point time, reduce the manual working time, thus improving total operational percentage protected, reducing power off time, improving masses' electricity consumption satisfaction.
A kind of user's side leakage current monitoring method provided by the invention, including:
Gather the leakage current information of user side;
When the size of described leakage current exceedes predetermined threshold value, produce warning message;
Collect described leakage current information and described warning message and be uploaded to main website;
According to described leakage current information and described warning message, incipient fault point is positioned.
Preferably, in above-mentioned user's side leakage current monitoring method, after described generation warning message, also include:
Open corresponding warning display lamp.
Preferably, in above-mentioned user's side leakage current monitoring method, also include after the described leakage current information gathering user side:
Store described leakage current information, as historical information.
Preferably, in above-mentioned user's side leakage current monitoring method, described collection described leakage current information and described warning message are also uploaded to main website and are:
Collect described leakage current information, and described leakage current information is screened, obtain effective information, and described effective information is uploaded to main website.
Preferably, in above-mentioned user's side leakage current monitoring method, described incipient fault point positioned after, also include:
The state of the described warning display lamp according to scene and the data results of described main website, investigate described incipient fault point.
A kind of user's side leakage current monitoring system provided by the invention, including:
Harvester, for gathering the leakage current information of user side;
Caution device, for when the size of described leakage current exceedes predetermined threshold value, producing warning message;
Upload device, be used for collecting described leakage current information and described warning message and being uploaded to main website;
Positioner, for according to described leakage current information and described warning message, positioning incipient fault point.
Preferably, in above-mentioned user's side leakage current monitoring system, also include: the warning display lamp being connected with described caution device, for opening when the size of described leakage current exceedes predetermined threshold value.
Preferably, in above-mentioned user's side leakage current monitoring system, also include: the storage device being connected with described harvester, be used for storing described leakage current information, as historical information.
Preferably, in above-mentioned user's side leakage current monitoring system, also include: upload, with described, the screening plant that device is connected, for described leakage current information is screened, obtain effective information.
Preferably, in above-mentioned user's side leakage current monitoring system, also include: the rechargeable battery being connected with described harvester, for powering for described harvester under powering-off state.
Above-mentioned user's side leakage current monitoring method provided by the invention and system, owing to its method includes: gather the leakage current information of user side; When the size of described leakage current exceedes predetermined threshold value, produce warning message; Collect described leakage current information and described warning message and be uploaded to main website; According to described leakage current information and described warning message, incipient fault point is positioned, therefore, it is possible to realize user's side leakage electricity real time data acquisition and quickly position leak current fault point, shorten the investigation trouble point time, reduce the manual working time, thus improving total operational percentage protected, reducing power off time, improving masses' electricity consumption satisfaction.
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to the accompanying drawing provided.
The schematic diagram of a kind of user's side leakage current monitoring method that Fig. 1 provides for the embodiment of the present application;
The schematic diagram of the first user's side leakage current monitoring system that Fig. 2 provides for the embodiment of the present application;
The schematic diagram of the second user's side leakage current monitoring system that Fig. 3 provides for the embodiment of the present application.
Detailed description of the invention
The core concept of the present invention is in that to provide a kind of user's side leakage current monitoring method and system, it is capable of user's side leakage electricity real time data acquisition and quickly positions leak current fault point, shorten the investigation trouble point time, reduce the manual working time, thus improving total operational percentage protected, reduce power off time, improve masses' electricity consumption satisfaction.
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments. Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention.
A kind of user's side leakage current monitoring method that the embodiment of the present application provides is as it is shown in figure 1, the schematic diagram of a kind of user's side leakage current monitoring method that provides for the embodiment of the present application of Fig. 1. The method comprises the steps:
S1: gather the leakage current information of user side;
In this step, the leakage current information of leakage current harvester Real-time Collection user side can be utilized, this leakage current harvester adopts the mode that transformer is external, and there is the structure dragging four, that is leakage current harvester can gather the leakage current information at 4 families simultaneously, and quit work during in order to avoid power down, can have duplex feeding mode, namely while 220V single-phase alternating current is powered, built-in rechargeable battery can also be utilized to be powered, this rechargeable battery ensure that continuous operation 24 hours after alternating current power-off, this makes it possible to provide convenient for the site examining and repairing process of staff.
S2: when the size of described leakage current exceedes predetermined threshold value, produces warning message;
In this step, concrete, when on-the-spot leakage current exceedes predetermined threshold value (transfinite warning value), software alarm flag set, and on-the-spot leakage current less than predetermined threshold value (transfinite warning value) time, software cleared alarm mark.
S3: collect described leakage current information and described warning message and be uploaded to main website;
In this step, it is possible to use collection described leakage current information that acquisition terminal is real-time and described warning message, concrete, relative to acquisition terminal of the prior art, the acquisition terminal of the present embodiment adds and carries out the interface of communication with described leakage current harvester. For communication modes therebetween, external small wireless (micropower is wireless) communication can be selected according to field condition, or it is directly connected to 485 lines and carries out communication, concrete, the rural area wireless signal that ground on the scene is spacious is little by building interference, can be selected for small wireless networking, the slightly remote wireless signal of distance to ground not can directly between acquisition terminal and leakage current current collector increase by one 485 connecting line carry out communication, acquisition terminal can be directly connected to 485 in the concentration community that density is big and carry out communication. It addition, this acquisition terminal can adopt GPRS, ADSL or PSTN mode that described leakage current information and described warning message are uploaded to main website.
S4: according to described leakage current information and described warning message, positions incipient fault point.
In this step, staff can by main website check each monitoring point real-time leakage data and and warning message, can quickly position trouble point that may be present by the analysis of data, take corresponding measure to avoid the generation of fault in time, this makes it possible to better ensure Electrical Safety.
By foregoing description it can be seen that the method that above-described embodiment provides is capable of user's side leakage electricity real time data acquisition and quickly positions leak current fault point, shorten the investigation trouble point time, reduce the manual working time, thus improving total operational percentage protected, reducing power off time, improving masses' electricity consumption satisfaction.
As another preferred version, in above-mentioned steps S2, after described generation warning message, it is also possible to comprise the steps:
S21: open corresponding warning display lamp.
This step is to supplement in step S2 one of software warning, hardware realizes warning, concrete, when on-the-spot leakage current exceedes predetermined threshold value, while software caution sign set, hardware alarm display lamp is bright, when on-the-spot electric leakage is less than predetermined threshold value, caution sign removed by software, and warning display lamp goes out simultaneously; And on-the-spot electric leakage exceedes predetermined threshold value and be continued above 40ms, software caution sign set, the simultaneously flicker of hardware fault lamp, after electrical leakage is less than predetermined threshold value, hardware fault display lamp still glimmers and keeps 24 hours. In this case, it becomes possible to facilitate operator scene to find the position gone wrong, improve the efficiency of solution problem. It should be noted that this step is only a preferred version of said method, without this step, the realization of said method also can't be affected.
Further, in above-mentioned steps S1, after the described leakage current information gathering user side, it is also possible to comprise the steps:
S11: store described leakage current information, as historical information.
Utilize this step, it is possible to the analysis for incipient fault point provides more foundation, and staff is when analyzing, in conjunction with real-time leakage data and warning message, it becomes possible to faster location incipient fault point, take the measure of necessity to avoid fault to occur in time. It should be noted that this step is also only a preferred steps of said method, without this step, without the enforcement affecting said method.
It addition, for the transfer rate improving information, improve work efficiency, above-mentioned steps S3 can be particularly preferred as:
Collect described leakage current information, and described leakage current information is screened, obtain effective information, and described effective information is uploaded to main website.
In this case, upload again after leakage current information sifting, avoid the excessive problem causing transmission speed slow of data volume, it also avoid the interference that subsequent analysis is formed by hash. And, described main website can increase user profile and the function of residual current statistics display. It should be noted that this concrete step is a preferred version of step S3, there is certain advantage, but if not adopting this step, without the realization affecting said method.
As another preferred embodiment, after above-mentioned steps S4, it is also possible to comprise the steps:
S41: the data results according to the state of on-the-spot described warning display lamp and described main website, investigates described incipient fault point.
In this step, concrete, once there is leakage tripping fault, main website can also for the certain foundation of the location offer of the analysis of failure cause and trouble point by the analysiss result of historical data, staff can slap, by the malfunction indicator lamp state of leakage current harvester and site infrare, the leakage current information that machine copy reading is arrived to on-the-spot simultaneously, in order to quickly investigates trouble point.It should be noted that this step is only supplementing of a preferred formula to said method, without this step, the realization of said method also can't be affected.
The first user's side leakage current monitoring system that the embodiment of the present application provides is as in figure 2 it is shown, the schematic diagram of the first user's side leakage current monitoring system that provides for the embodiment of the present application of Fig. 2. This system includes:
Harvester 201, for gathering the leakage current information of user side, it should be noted that, this harvester can be final stage leakage current harvester, 4 family leakage currents and single-phase 220V supply voltage can be gathered, there is 485 interfaces and infrared interface, the outside each item data that can be read harvester by 485 modes and far infrared mode, and each described harvester 201 can store the information at 4 families, the information of each household includes 512 leakage data, the minima record of the maximum record of the same day and upper one day and the same day and upper one day, can by 485 or infrared arrange device address, 4 family code names are distinguished in last 1 of the address of equipment, 0 represents the first family, 1 represents the second family, 2 represent the 3rd family, 3 represent the 4th family, and 4 family share other data can be set, described predetermined threshold value can also be set, including warning value and the failure warning value of transfiniting, leakage current record difference and leakage current intra-record slack byte time also can be set,
Caution device 202, for when the size of described leakage current exceedes predetermined threshold value, producing warning message, concrete, it is possible to include 1 family warning, 2 family warnings, 3 family warnings and the warning of 4 families;
Upload device 203, for collecting described leakage current information and described warning message and being uploaded to main website, data are passed to the private network of Utilities Electric Co. by communication modes such as GPRS, ADSL or PSTN, and data collection packing is passed to server and is finally resolved display by each client (always protecting on-line monitoring system) by front end processor again;
Positioner 204, for according to described leakage current information and described warning message, positioning incipient fault point, can quickly position trouble point that may be present by the analysis of data, take corresponding measure to avoid the generation of fault in time, it is possible to reduce fault rate.
The system that above-described embodiment provides is capable of user's side leakage electricity real time data acquisition and quickly positions leak current fault point, shorten the investigation trouble point time, reduce the manual working time, thus improving total operational percentage protected, reduce power off time, improve masses' electricity consumption satisfaction.
As another preferred embodiment, as it is shown on figure 3, the schematic diagram of the second user's side leakage current monitoring system that Fig. 3 provides for the embodiment of the present application. In this user's side leakage current monitoring system, also include: the warning display lamp 205 being connected with described caution device 202, for opening when the size of described leakage current exceedes predetermined threshold value, when on-the-spot leakage current exceedes predetermined threshold value, while software caution sign set, this warning display lamp is bright, when on-the-spot electric leakage is less than predetermined threshold value, caution sign removed by software, warning display lamp goes out simultaneously, in this case, it becomes possible to facilitate operator scene to find the position gone wrong, improve the efficiency of solution problem. Supplement it should be noted that this warning display lamp 205 is the one to said system, it is possible to bring convenience, and if being not arranged in warning display lamp without the function affecting said system.
Further, in above-mentioned user's side leakage current monitoring system, also include: the storage device 206 being connected with described harvester 201, for storing described leakage current information, as historical information, staff is when analyzing, described historical information by storage, in conjunction with real-time leakage data and warning message, it becomes possible to faster location incipient fault point, the measure of necessity is taked to avoid fault to occur in time.
As another preferred embodiment, in above-mentioned user's side leakage current monitoring system, it is also possible to including: upload, with described, the screening plant 207 that device 203 is connected, for described leakage current information is screened, obtain effective information, so can reduce transmitted data amount, improve transfer rate. If it should be noted that be not provided with this screening plant, the function of said system also can't be affected.
Additionally, in order to ensure the seriality that system works, it is also possible to including: the rechargeable battery 208 being connected with described harvester 201, for powering for described harvester under powering-off state, when blackout condition occurs, it is ensured that this harvester works on 24 hours.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses the present invention. The multiple amendment of these embodiments be will be apparent from for those skilled in the art, and generic principles defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments. Therefore, the present invention is not intended to be limited to the embodiments shown herein, and is to fit to the widest scope consistent with principles disclosed herein and features of novelty.
Claims (10)
1. user's side leakage current monitoring method, it is characterised in that including:
Gather the leakage current information of user side;
When the size of described leakage current exceedes predetermined threshold value, produce warning message;
Collect described leakage current information and described warning message and be uploaded to main website;
According to described leakage current information and described warning message, incipient fault point is positioned.
2. user's side leakage current monitoring method according to claim 1, it is characterised in that after described generation warning message, also include:
Open corresponding warning display lamp.
3. user's side leakage current monitoring method according to claim 2, it is characterised in that also include after the described leakage current information gathering user side:
Store described leakage current information, as historical information.
4. user's side leakage current monitoring method according to claim 3, it is characterised in that described collection described leakage current information and described warning message are also uploaded to main website and are:
Collect described leakage current information, and described leakage current information is screened, obtain effective information, and described effective information is uploaded to main website.
5. the user's side leakage current monitoring method according to any one of claim 2-4, it is characterised in that described incipient fault point positioned after, also include:
The state of the described warning display lamp according to scene and the data results of described main website, investigate described incipient fault point.
6. user's side leakage current monitoring system, it is characterised in that including:
Harvester, for gathering the leakage current information of user side;
Caution device, for when the size of described leakage current exceedes predetermined threshold value, producing warning message;
Upload device, be used for collecting described leakage current information and described warning message and being uploaded to main website;
Positioner, for according to described leakage current information and described warning message, positioning incipient fault point.
7. user's side leakage current monitoring system according to claim 6, it is characterised in that also include: the warning display lamp being connected with described caution device, for opening when the size of described leakage current exceedes predetermined threshold value.
8. user's side leakage current monitoring system according to claim 7, it is characterised in that also include: the storage device being connected with described harvester, is used for storing described leakage current information, as historical information.
9. user's side leakage current monitoring system according to claim 8, it is characterised in that also include: upload, with described, the screening plant that device is connected, for described leakage current information is screened, obtains effective information.
10. the user's side leakage current monitoring system according to any one of claim 6-9, it is characterised in that also include: the rechargeable battery being connected with described harvester, for powering for described harvester under powering-off state.
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| CN201610017799.4A CN105676064A (en) | 2016-01-12 | 2016-01-12 | User-side leakage current monitoring method and system |
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| CN107681777A (en) * | 2017-07-19 | 2018-02-09 | 国网浙江省电力公司衢州供电公司 | A kind of intelligent domestic leakage protection system and method |
| CN107707375A (en) * | 2017-05-26 | 2018-02-16 | 贵州白山云科技有限公司 | A kind of method and apparatus for positioning parsing failure |
| CN108303615A (en) * | 2017-12-29 | 2018-07-20 | 广东电网有限责任公司江门供电局 | A kind of localization method of low voltage electric network leakage point of electricity |
| CN109462214A (en) * | 2018-01-31 | 2019-03-12 | 国网浙江省电力公司湖州供电公司 | A kind of residual current transfinites failure segmentation investigation method |
| CN112104072A (en) * | 2020-08-04 | 2020-12-18 | 杭州华春科技有限公司 | Leakage monitoring switch |
| CN113270943A (en) * | 2021-06-03 | 2021-08-17 | 长沙理工大学 | Intelligent power distribution cabinet (box) safety monitoring and early warning method, system and device |
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| CN112104072A (en) * | 2020-08-04 | 2020-12-18 | 杭州华春科技有限公司 | Leakage monitoring switch |
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| CN113270943A (en) * | 2021-06-03 | 2021-08-17 | 长沙理工大学 | Intelligent power distribution cabinet (box) safety monitoring and early warning method, system and device |
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Application publication date: 20160615 |
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