CN107069965B - Step voltage leakage alarm device for power distribution network and power distribution network leakage monitoring system in power supply district - Google Patents
Step voltage leakage alarm device for power distribution network and power distribution network leakage monitoring system in power supply district Download PDFInfo
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- CN107069965B CN107069965B CN201710250605.XA CN201710250605A CN107069965B CN 107069965 B CN107069965 B CN 107069965B CN 201710250605 A CN201710250605 A CN 201710250605A CN 107069965 B CN107069965 B CN 107069965B
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 27
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 34
- 238000004891 communication Methods 0.000 claims abstract description 34
- 238000001514 detection method Methods 0.000 claims abstract description 26
- 229910052742 iron Inorganic materials 0.000 claims abstract description 17
- 238000010295 mobile communication Methods 0.000 claims abstract description 16
- 238000012545 processing Methods 0.000 claims description 9
- 230000000007 visual effect Effects 0.000 claims description 9
- 238000012423 maintenance Methods 0.000 claims description 8
- 230000004044 response Effects 0.000 claims description 5
- 229910000831 Steel Inorganic materials 0.000 claims description 4
- 239000010959 steel Substances 0.000 claims description 4
- 238000000034 method Methods 0.000 claims description 3
- 230000006855 networking Effects 0.000 claims 1
- 238000009434 installation Methods 0.000 abstract description 6
- 230000010354 integration Effects 0.000 abstract description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000012806 monitoring device Methods 0.000 description 5
- 230000007613 environmental effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
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- 238000007689 inspection Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 230000008569 process Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J13/00—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network
- H02J13/00001—Circuit arrangements for providing remote indication of network conditions, e.g. an instantaneous record of the open or closed condition of each circuitbreaker in the network; Circuit arrangements for providing remote control of switching means in a power distribution network, e.g. switching in and out of current consumers by using a pulse code signal carried by the network characterised by the display of information or by user interaction, e.g. supervisory control and data acquisition systems [SCADA] or graphical user interfaces [GUI]
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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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- H02J13/0075—
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
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- Engineering & Computer Science (AREA)
- Human Computer Interaction (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Remote Monitoring And Control Of Power-Distribution Networks (AREA)
Abstract
The invention provides a step voltage leakage alarming device of a power distribution network and a leakage monitoring system of a power supply district, wherein the step voltage leakage alarming device of the power distribution network comprises a pair of ground electrodes, a leakage detection module and a wireless communication module, the pair of ground electrodes are used for detecting ground step voltages around special equipment used in the power distribution network, the special equipment used in the power distribution network refers to a transformer or an iron tower or a stay wire and sends the step voltages to the leakage detection module, the wireless communication module is a mobile phone communication module, and when the leakage detection module finds that the ground step voltages around the special equipment used in the power distribution network reach a certain set value, the ground step voltages are regarded as the leakage condition and alarm information is sent outwards through the mobile phone communication module and a mobile communication network. The device has the advantages of low cost, small volume, high integration level and practical and convenient installation.
Description
Technical Field
The invention relates to a step voltage leakage alarm device of a power distribution network and a power supply district power distribution network leakage monitoring system.
Background
At present, most of low-voltage outlet switches of distribution network transformers are air switches, and have no leakage checking function. The air switch has the advantages of high stability, no influence of electric leakage of part of circuits, and avoidance of unnecessary tripping operation, but when the electric leakage exists for a long time, the air switch cannot trip and warn, so that potential safety hazards are brought to the operation and maintenance of a power grid, and personal electric shock casualties can occur seriously.
The applicant has also studied by using a zero sequence current transformer and a leakage detection and wireless communication mode, wherein the zero sequence current transformer detects an electric wire at an outlet side of an air switch, but the scheme of the leakage detection wireless alarm is found to have the following defects: 1) When in installation, the conductive wires are required to be powered off to be installed, so that electricity consumption is affected; 2) The volume is large, a certain space is occupied, and the integration into modularization is not easy; 3) The product cost is high.
In addition, in addition to the leakage risk of the transformer, equipment such as high-low voltage iron towers and stay wires (used for fixing telegraph poles) in a power supply district can also have the leakage risk, the leakage monitoring system is still to be perfected, the original conception only needs to give an alarm, the functions are imperfect, and because the distribution positions of the transformer, the iron towers and the stay wires are different, not every maintainer can timely and quickly find the positions of the transformer, the high-low voltage iron towers and the stay wires, and the functions of positioning and navigating are objectively needed.
Disclosure of Invention
The invention aims to provide a step voltage leakage alarm device for a power distribution network, which has the advantages of low cost, small volume, high integration level and practical and convenient installation.
The invention further aims to provide a power distribution network leakage monitoring system in the power supply district, which can intuitively grasp the situation of special equipment with larger leakage risk in the power supply district, and timely find and timely process the special equipment.
The technical scheme of the invention is realized as follows:
power distribution network step voltage leakage alarm device, its characterized in that: the wireless communication module is a mobile phone communication module, and when the electricity leakage detection module finds that the ground step voltage around the special equipment used in the power distribution network reaches a certain set value, the situation of electricity leakage exists, and alarm information is sent outwards through the mobile phone communication module and a mobile communication network.
The leakage detection module sends alarm information to a set mobile phone on duty or a background computer monitoring center through a mobile phone communication module and a mobile communication network.
The electric leakage detection module is also connected with a field alarm circuit, and when the electric leakage of the circuit is found, the data processing module triggers the field alarm circuit to start, and the alarm circuit is an LED alarm circuit, an audible alarm circuit or an audible and visual alarm circuit.
The special equipment used in the power distribution network refers to a transformer or an iron tower or a stay wire, a pair of ground poles are used for detecting the ground around the transformer or the iron tower or the stay wire and are separated by at least 0.8 meter, and the pair of ground poles are made of galvanized round steel.
The electric leakage detection module and the on-site alarm circuit are manufactured into an integrated structure, the mobile phone communication module is a full-network communication or GSM mobile phone module, a telephone card chip is arranged in the mobile phone communication module, and the mobile communication network is a full-network communication or GSM communication network.
The electric leakage detection module adopts a track type residual current fire monitoring detector, and solar energy can be used for providing power for the track type residual current fire monitoring detector and the mobile phone communication module.
The utility model provides a power supply district distribution network electric leakage monitored control system, includes special equipment and a plurality of electric leakage alarm device, mobile communication network, the backstage supervisory equipment that use in a plurality of distribution network, the special equipment that uses in the distribution network be transformer or iron tower or act as go-between, its characterized in that: the power distribution network step voltage leakage alarming device is characterized in that at least one power distribution network step voltage leakage alarming device is installed on the ground near special equipment used in a power distribution network needing leakage monitoring, and the power distribution network step voltage leakage alarming device and a background monitoring device are networked to form a leakage monitoring system through a mobile communication network.
The background monitoring equipment comprises a background computer monitoring center, and further comprises an on-duty mobile phone and a mobile phone of an maintainer.
The background computer monitoring center associates each power distribution network step voltage leakage alarming device with map data corresponding to each power distribution network step voltage leakage alarming device to form a database, and when the power distribution network step voltage leakage alarming devices installed on the ground near special equipment used in a certain power distribution network send alarming information to the background computer monitoring center, the background computer monitoring center immediately sends the map data corresponding to the special equipment to a mobile phone of an maintainer, and the mobile phone of the maintainer can navigate to the position of the special equipment for sending leakage alarming by utilizing the map data.
The background computer monitoring center is provided with a distribution map of all special equipment in a power supply district and marked by marks, and when the power distribution network step voltage and electric leakage alarming device installed on the ground near a certain special equipment sends alarming information to the background computer monitoring center, the marks corresponding to the special equipment can carry out alarming display on the distribution map.
The background computer monitoring center is provided with a software recording unit, and the software recording unit can record the response time information of the step voltage and electric leakage alarming device of the power distribution network, such as alarming ID record, alarming time, maintenance processing time and on-duty personnel.
Compared with the prior art, the invention has the following advantages:
1) The step voltage leakage alarm device of the power distribution network adopts a pair of ground electrodes to detect leakage, has small volume, low cost and easy modularization integration compared with the detection mode of a zero sequence transformer, does not need to perform power failure treatment on a conductive wire during installation, and is convenient and flexible to install and use;
2) The ground poles are used for detecting the ground around special equipment (such as a transformer, an iron tower, a stay wire and the like) used in the power distribution network, and are separated by at least 0.8 meter, and the pair of ground poles are made of galvanized round steel, so that the cost is low and the installation is convenient;
3) The electric leakage detection module adopts a track type residual current fire monitoring detector and has the following advantages: a) Easy to install, does not need to reform transform the support, and direct clamp is just can fix on the steelframe. B) The rail type residual current fire monitoring detector integrates audible and visual alarm, so that the integration level is high; c) The power supply can be provided for the mobile phone communication module, and the functions are perfect; d) The volume is small and the cost is low.
4) The electric leakage detection module is also connected with an alarm circuit, and when the electric leakage condition of the circuit is found, the data processing module triggers the alarm circuit to start, and the alarm circuit is an LED alarm circuit, or an audible and visual alarm circuit, so that the on-site alarm is realized, and the electric power facility inspection personnel can also find the electric leakage condition in time, and the function is more perfect.
5) According to the power supply district distribution network electric leakage monitoring system, the background monitoring equipment of the power supply department can timely and intuitively know the electric leakage condition of the monitored special equipment in the power supply district, and basic data support is provided for the decision management of the leader;
6) The background computer monitoring center associates each step voltage and leakage alarming device of the power distribution network with corresponding map data to form a database, and when the step voltage and leakage alarming devices of the power distribution network installed on the ground near a certain special device (such as a transformer, an iron tower, a stay wire and the like) send alarming information to the background computer monitoring center, the background computer monitoring center immediately sends the map data of the position corresponding to the special device to a mobile phone of an maintainer, and the mobile phone of the maintainer can navigate to the position of the special device for sending leakage alarming by utilizing the map data. Valuable time is striven for the robbery, the function is more perfect, can be suitable for the condition that the maintainer is unclear to the position of transformer.
7) The background computer monitoring center is provided with a distribution map of all monitored special equipment in a power supply district and marked by marks, and when the power distribution network step voltage and electric leakage alarming device installed on the ground near a certain special equipment sends alarming information to the background computer monitoring center, the marks corresponding to the special equipment can carry out alarming display on the distribution map. Bit-led decisions provide more intuitive data.
8) A software recording unit is arranged in a background computer monitoring center and can record information of an alarming ID record, alarming time, maintenance processing time and response time of an on-duty person of the step voltage and electric leakage alarming device of the power distribution network. The remote alarm is realized, the potential safety hazard of electric leakage is conveniently and accurately handled in time, whether the operator on duty and the maintainer handle in time or not is recorded, responsibility is cleared, and the monitoring work is facilitated. The electric leakage condition of the power distribution network can be completely monitored by the mobile phone on duty, the mobile phone of an maintainer and the monitoring center of a background computer, so that the electric leakage monitoring system is convenient and visual to use and is not limited by the environmental site.
Drawings
Fig. 1 is a circuit block diagram of a first embodiment of the present invention.
Fig. 2 is a circuit block diagram of fig. 1 according to a second embodiment of the present invention.
Fig. 3 is a distribution map of all monitored electrical leakage dedicated equipment within a second powered jurisdiction in accordance with an embodiment of the present invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Embodiment one:
as shown in fig. 1, the step voltage leakage alarm device for a power distribution network of the present invention is characterized in that: the wireless communication module is a mobile phone communication module, and when the electricity leakage detection module finds that the ground step voltage around the special equipment used in the power distribution network reaches a certain set value, the situation of electricity leakage exists, and alarm information is sent outwards through the mobile phone communication module and a mobile communication network. The electric leakage detection module sends alarm information to a set mobile phone on duty or a background computer monitoring center through the mobile phone communication module and the mobile communication network. The electric leakage detection module is also connected with a field alarm circuit, and when the electric leakage of the circuit is found, the data processing module triggers the field alarm circuit to start, and the alarm circuit is an LED alarm circuit, or an audible and visual alarm circuit. The special equipment used in the power distribution network refers to a transformer or an iron tower or a stay wire, a pair of ground poles are used for detecting the ground around the transformer or the iron tower or the stay wire and are separated by at least 0.8 meter, and galvanized round steel is adopted for the pair of ground poles.
The electric leakage detection module and the on-site alarm circuit are manufactured into an integrated structure, the mobile phone communication module is a GSM mobile phone module, a telephone card chip is arranged in the mobile phone communication module, and the mobile communication network is a full-network communication or GSM communication network. The electric leakage detection module adopts a track type residual current fire monitoring detector which provides power for the mobile phone communication module.
The step voltage leakage alarm device for the power distribution network adopts a pair of ground electrodes to detect leakage, has small volume, low cost and easy modularization integration compared with a detection mode of a zero sequence transformer, does not need to perform power failure treatment on a conductive wire during installation, and is convenient and flexible to install and use.
When the leakage detection module finds that the line has leakage, the leakage detection module informs a person on duty of a line of leakage faults by using a mobile phone communication module, a mobile phone on duty and a background computer monitoring center which are set on a mobile communication network connection, so that the leakage situation is accurately detected, the person on duty is timely informed by the mobile phone, remote alarm is realized, potential safety hazards of leakage are conveniently and accurately handled in time, whether the person on duty and an maintainer handle in time is recorded, responsibility is separated, and development of supervision work is facilitated. The electric leakage condition of the power distribution network can be monitored completely through the mobile phone on duty, the use is convenient and visual, and the electric leakage monitoring device is not limited by the environmental site.
Embodiment two:
as shown in fig. 1 and fig. 2, a power supply district distribution network leakage monitoring system includes a plurality of special equipment used in a distribution network, a plurality of leakage alarm devices, a mobile communication network and a background monitoring device, wherein the special equipment used in the distribution network refers to a transformer or an iron tower or a stay wire, and is characterized in that: the power distribution network step voltage leakage alarming device is characterized in that the power distribution network step voltage leakage alarming device is arranged on the ground near special equipment used in a power distribution network needing leakage monitoring, and the power distribution network step voltage leakage alarming device and a background monitoring device are connected to form a leakage monitoring system through a mobile communication network.
The background monitoring equipment comprises a background computer monitoring center, and further comprises a mobile phone for duty and a mobile phone for overhauling personnel. The background computer monitoring center associates each power distribution network step voltage leakage alarming device with map data corresponding to each power distribution network step voltage leakage alarming device to form a database, when the power distribution network step voltage leakage alarming devices installed on the ground near special equipment used in a certain power distribution network send alarming information to the background computer monitoring center, the background computer monitoring center immediately sends position map data (such as a position positioning map in a mobile phone WeChat) corresponding to the special equipment to a mobile phone of an maintainer, and the mobile phone of the maintainer can navigate to the position of the special equipment sending leakage alarming by utilizing the map data. The function is perfect. The background computer monitoring center is connected to the mobile communication network through the communication module. The communication module may be a mobile phone.
The background computer monitoring center is provided with a distribution map for all special equipment in a power supply district and marked by marks, and when the power distribution network step voltage and electric leakage alarming device installed on the ground near a certain special equipment sends alarming information to the background computer monitoring center, the marks corresponding to the special equipment can carry out alarming display on the distribution map. The method is simple and visual, and provides basis for leading management decision of the power supply part.
A software recording unit is arranged in a background computer monitoring center and can record information of an alarming ID record, alarming time, maintenance processing time and response time of an on-duty person of the step voltage and electric leakage alarming device of the power distribution network. The ID record is corresponding to the identification number of each step voltage leakage alarm device of the power distribution network. The background computer monitoring center gives each power distribution network step voltage leakage alarm device a unique identification number.
In fig. 2 and fig. 3, it is assumed that 4 special devices for monitored electric leakage are arranged in a power supply district, namely a transformer 1, a pull rod 2, a transformer 3 and an iron tower 4, and a power distribution network step voltage electric leakage alarming device is respectively arranged on the ground near the transformer 1, the pull rod 2, the transformer 3 and the iron tower 4, namely a power distribution network step voltage electric leakage alarming device A1, a power distribution network step voltage electric leakage alarming device A2, a power distribution network step voltage electric leakage alarming device A3 and a power distribution network step voltage electric leakage alarming device A4, the corresponding distribution map of the special devices for electric leakage monitoring is marked with dots, and the lower part of each dot respectively represents A1, A2, A3 and A4, and respectively corresponds to the power distribution network step voltage electric leakage alarming device A1, the power distribution network step voltage electric leakage alarming device A2, the power distribution network step voltage electric leakage alarming device A3 and the power distribution network step voltage electric leakage alarming device A4.
A software recording unit is arranged in a background computer monitoring center and can record information of an alarming ID record, alarming time, maintenance processing time and response time of an on-duty person of the step voltage and electric leakage alarming device of the power distribution network. The remote alarm is realized, the potential safety hazard of electric leakage is conveniently and accurately handled in time, whether the operator on duty and the maintainer handle in time or not is recorded, responsibility is cleared, and the monitoring work is facilitated. The electric leakage condition of the power distribution network can be monitored completely through the mobile phone on duty, the use is convenient and visual, and the electric leakage monitoring device is not limited by the environmental site.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (4)
1. The utility model provides a power supply district distribution network electric leakage monitored control system, includes the special equipment and the several electric leakage alarm device that use in a plurality of distribution network, mobile communication network, backstage supervisory equipment, the special equipment that uses in the distribution network be transformer or iron tower or acting as go-between, distribution network step voltage electric leakage alarm device constitutes electric leakage monitored control system with backstage supervisory equipment networking through mobile communication network;
the electric leakage alarm devices comprise a pair of ground electrodes, an electric leakage detection module and a wireless communication module, wherein the ground electrodes are used for detecting ground step voltages around special equipment used in the power distribution network and sending the step voltages to the electric leakage detection module;
the method is characterized in that:
the electric leakage detection module adopts a track type residual current fire monitoring detector which provides power for the mobile phone communication module;
the mobile phone communication module is a GSM mobile phone module, a telephone card chip is arranged in the mobile phone communication module, and the mobile communication network is a full-network communication or GSM communication network;
the background monitoring equipment comprises a background computer monitoring center and a mobile phone of an maintainer;
the background computer monitoring center associates each power distribution network step voltage leakage alarming device with map data corresponding to each power distribution network step voltage leakage alarming device to form a database, when the power distribution network step voltage leakage alarming devices installed on the ground near special equipment used in a certain power distribution network send alarming information to the background computer monitoring center, the background computer monitoring center immediately sends map data corresponding to the special equipment to mobile phones of maintenance personnel, and the mobile phones of the maintenance personnel can navigate to positions of the special equipment for sending leakage alarming by utilizing the map data;
the background computer monitoring center is provided with a distribution map for all special equipment in a power supply district and marked by marks, and when the power distribution network step voltage and electric leakage alarming device installed on the ground near a certain special equipment sends alarming information to the background computer monitoring center, the marks corresponding to the special equipment can carry out alarming display on the distribution map.
2. The utility model provides a power supply district distribution network electric leakage monitored control system according to claim 1, characterized in that: the electric leakage detection module is also connected with a field alarm circuit, when the electric leakage of the circuit is found, the data processing module triggers the field alarm circuit to start, the alarm circuit is an LED alarm circuit, or an audible and visual alarm circuit, and the electric leakage detection module and the field alarm circuit are manufactured into an integrated structure.
3. The utility model provides a power supply district distribution network electric leakage monitored control system according to claim 2, characterized in that: the special equipment used in the power distribution network refers to a transformer or an iron tower or a stay wire, a pair of ground poles are used for detecting the ground around the transformer or the iron tower or the stay wire and are separated by at least 0.8 meter, and galvanized round steel is adopted for the pair of ground poles.
4. A utility grid leakage monitoring system according to claim 3, wherein: a software recording unit is arranged in a background computer monitoring center and can record information of an alarm ID record, alarm time, maintenance processing time and response time of an on-duty person of the step voltage and electric leakage alarm device of the power distribution network.
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| CN108957232A (en) * | 2018-07-18 | 2018-12-07 | 杭州新融方科技有限公司 | A kind of distribution net work earthing fault detection processing and its operating method |
| CN111239474B (en) * | 2020-02-24 | 2022-06-10 | 云南电网有限责任公司临沧供电局 | Step voltage detection method and system for single-phase broken line short-circuit tower of power transmission line |
| CN111239473B (en) * | 2020-02-24 | 2022-02-01 | 云南电网有限责任公司临沧供电局 | Broken string connects pole tower trouble step voltage risk evaluation system under perpendicular layering soil |
| CN112491007B (en) * | 2020-11-23 | 2023-06-27 | 云南电网有限责任公司临沧供电局 | Leakage current protection, monitoring and early warning system and method |
| CN113253181A (en) * | 2021-04-27 | 2021-08-13 | 国网安徽省电力有限公司安庆供电公司 | Intelligent information data acquisition and analysis system based on big data |
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