CN106324431B - High tension cable non-contact electric leakage detection device - Google Patents
High tension cable non-contact electric leakage detection device Download PDFInfo
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- CN106324431B CN106324431B CN201610716851.5A CN201610716851A CN106324431B CN 106324431 B CN106324431 B CN 106324431B CN 201610716851 A CN201610716851 A CN 201610716851A CN 106324431 B CN106324431 B CN 106324431B
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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
- G01R31/083—Locating faults in cables, transmission lines, or networks according to type of conductors in cables, e.g. underground
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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
- Y04S10/00—Systems supporting electrical power generation, transmission or distribution
- Y04S10/50—Systems or methods supporting the power network operation or management, involving a certain degree of interaction with the load-side end user applications
- Y04S10/52—Outage or fault management, e.g. fault detection or location
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Abstract
The invention discloses a non-contact leakage detection device for a high-voltage cable, which comprises a base, wherein a touch display device is arranged on the front surface of the base, an information processing assembly is arranged in the base, a hexagonal telescopic frame is movably arranged on the upper surface of the base through a supporting rod, three signal preprocessing devices are arranged on the hexagonal telescopic frame through a movable intermediate body, a disc-shaped cover is fixedly arranged on the upper surface of each preprocessing device, a receiving device is arranged in the disc-shaped cover, and the receiving device is electrically connected with the signal preprocessing devices. The invention can check the leakage phenomenon in a mutual inductance mode to send out an alarm through the matching use of the touch display device, the information processing assembly, the signal preprocessing device and the receiving device, and carry out quick accurate stereotaxic to it, avoided the danger that technical worker carries out closely contact maintenance in the past.
Description
Technical Field
The invention relates to the technical field of strong current detection, in particular to a non-contact leakage detection device for a high-voltage cable.
Background
The high-voltage cable is one of power cables, is used for transmitting 10KV-35KV (1kv = 1000v), and is mostly applied to a main trunk of power transmission. The phenomenon of electric leakage of the high-voltage cable occurs occasionally, especially, the leakage of the high-voltage cable near the ground directly endangers the life safety of people. When a technician overhauls, the technician often needs to perform close-range contact inspection, which wastes a large amount of time and physical power and increases the risk of the technician, so that the high-voltage cable non-contact leakage detection device is provided.
Disclosure of Invention
The present invention provides a non-contact leakage detection device for a high voltage cable, so as to solve the problems in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: a high-voltage cable non-contact electric leakage detection device comprises a base, wherein a touch display device is arranged on the front surface of the base, an information processing assembly is arranged inside the base, a hexagonal telescopic frame is movably mounted on the upper surface of the base through a supporting rod and comprises six telescopic rods, the six telescopic rods are sequentially connected, three signal preprocessing devices are mounted on the hexagonal telescopic frame through a movable intermediate, a disc-shaped cover is fixedly mounted on the upper surface of each preprocessing device, a receiving device is arranged in the disc-shaped cover, and the receiving device is electrically connected with the signal preprocessing devices;
the telescopic rod comprises a main pipe shell, a sliding piece, a stop block, a connecting hole, a T-shaped air passage and a pressure valve, wherein the sliding piece is inserted at two ends of the main pipe shell, the stop block is arranged on the side wall of one end, extending to the inner cavity of the main pipe shell, of the sliding piece, the connecting hole is formed in the other end of the sliding piece, the T-shaped air passage used for communicating the inner cavity of the main pipe shell with the atmosphere is formed in the sliding piece, and the pressure valve is arranged at the upper end and the lower end of the T-shaped air passage;
the information processing component comprises a processor, an expansion processor, an alarm, a GPU and a bus, the processor comprises a controller, an arithmetic unit and a memory, the controller, the arithmetic unit and the memory are connected in a bidirectional mode, the controller is further connected with the expansion processor and the GPU in a bidirectional mode, the output end of the controller is connected with the input end of the alarm, the GPU is connected with the bus, the touch display device comprises a touch module, a liquid crystal module and an LED module, the output end of the touch module is electrically connected with the bus, the input end of the liquid crystal module is electrically connected with the bus, and the input end of the LED module is electrically connected with the bus;
the signal preprocessing device comprises a low-pass filter, a gain amplifier, a level regulator, a D/A converter and a preprocessing processor formed by a preprocessing controller and a preprocessing arithmetic unit which are connected in a bidirectional mode, the output end of the low-pass filter is connected with the input end of the gain amplifier, the output end of the gain amplifier is connected with the input end of the level regulator, the output end of the level regulator is connected with the input end of the D/A converter, the output end of the D/A converter is connected with the input end of the preprocessing processor, the preprocessing processor is connected with a processor of an information processing assembly in a bidirectional mode, the receiving device comprises a voltage transformer and a current transformer, and the voltage transformer and the current transformer are electrically connected with the input end of the low-pass filter through electric conductors.
Preferably, the activity midbody includes fixed roll, cell body, elastic component, spherical spring bolt and live-rollers, the lateral wall of fixed roll is equipped with the cell body, fixed mounting has the elastic component in the cell body, spherical spring bolt is installed to the upper end of elastic component, the live-rollers has been cup jointed to the lateral wall of fixed roll.
Preferably, the inner side wall of the fixed roller is tightly attached with a rubber anti-slip sleeve.
Preferably, the side wall of the fixed roller is uniformly provided with at least six groove bodies, and the number of the elastic pieces and the number of the spherical lock tongues are the same as that of the groove bodies.
Preferably, the movable intermediate body comprises a connecting column, two fixed semi-rings, a hasp, a supporting seat, a cavity and rolling balls, wherein one end of the connecting column is hinged with the two fixed semi-rings which are matched for use, the lower ends of the fixed semi-rings are connected through the hasp, the upper end of the connecting column is inserted into the cavity of the supporting seat, and at least eight rolling balls are uniformly distributed between the side wall of the connecting column and the inner wall of the cavity.
Preferably, the rolling balls are movably connected through a fixing ring.
In a preferred embodiment of the method of the invention, the included angle range of the touch display device and the horizontal plane is forty-five degrees to seventy-five degrees.
Compared with the prior art, the invention has the beneficial effects that: according to the invention, through the matched use of the touch display device, the information processing assembly, the signal preprocessing device and the receiving device, the electric leakage phenomenon can be checked in a mutual inductance mode to give an alarm, and the alarm is rapidly and accurately positioned in a three-dimensional mode, so that the danger of close-distance contact maintenance performed by a technical worker in the prior art is avoided, and the problems of time waste and physical strength waste during manual maintenance are also avoided.
Disclosure of Invention
FIG. 1 is a schematic top view of the present invention;
FIG. 2 isbase:Sub>A schematic structural view ofbase:Sub>A section A-A' of the present invention;
FIG. 3 is a schematic structural view of the telescopic rod of the present invention;
FIG. 4 is a diagram of a mobile intermediate of the present invention the structure of the first embodiment is shown schematically;
FIG. 5 is a schematic structural view of a movable intermediate of the present invention according to a second embodiment;
fig. 6 is a block diagram of the present invention.
In the figure: the device comprises a base 1, a touch display device 2, a support rod 3, a hexagonal telescopic frame 4, a telescopic rod 41, a main pipe shell 411, a sliding piece 412, a stop 413, a connecting hole 414, a T-shaped air passage 415, a pressure valve 416, a movable intermediate 5, a fixed roller 511, a slot body 512, an elastic piece 513, a spherical bolt 514, a rotating roller 515, a connecting column 521, a fixed half ring 522, a hasp 523, a supporting seat 524, a cavity 525, a rolling ball 526, a fixed ring 527, a signal preprocessing device 6, a dish-shaped cover 7 and a receiving device 8.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of the invention is not limited thereto.
Referring to fig. 1-4 and 6, the present patent provides a first embodiment: a high-voltage cable non-contact leakage detection device comprises a base 1, wherein a touch display device 2 is arranged on the front surface of the base 1, the included angle range between the touch display device 2 and the horizontal plane is sixty degrees, a technician can conveniently operate the device, an information processing assembly is arranged inside the base 1, a hexagonal telescopic frame 4 is movably arranged on the upper surface of the base 1 through a support rod 3, the hexagonal telescopic frame 4 comprises six telescopic rods 41, the six telescopic rods 41 are sequentially connected, the distance between signal preprocessing devices 6 is increased by manually unfolding the hexagonal telescopic frame 4, the detection range is enlarged, the position of a leakage point is accurately judged, three signal preprocessing devices 6 are arranged on the hexagonal telescopic frame 4 through movable intermediates 5, the movable intermediate body 5 comprises a fixed roller 511, groove bodies 512, elastic pieces 513, spherical locking tongues 514, rotating rollers 515 and rubber anti-slip sleeves 516, six groove bodies 512 are uniformly arranged on the side wall of the fixed roller 511, the elastic pieces 513 are fixedly arranged in each groove body 512, the spherical locking tongues 514 are arranged at the upper ends of the elastic pieces 513, the rotating rollers 515 are sleeved on the outer side wall of the fixed roller 511, the rotating rollers 515 can be rotated during adjustment, when the movable intermediate body stops at a proper position, the elastic pieces 513 and the spherical locking tongues 514 are fixed by using the outward force of the elastic pieces 513 and the spherical locking tongues 514, the rubber anti-slip sleeves 516 are tightly attached to the inner side wall of the fixed roller 511 to prevent the fixed roller 511 from rotating during rotation, the signal preprocessing device 6 can be conveniently adjusted in the elevation angle size through the movable intermediate body 5, the leakage position can be better judged, a dish-shaped cover 7 is fixedly arranged on the upper surface of the preprocessing device 6, and accordingly weak signals can be captured, a receiving device 8 is arranged in the dish-shaped cover 7, and the receiving device 8 is electrically connected with the signal preprocessing device 6;
the telescopic rod 41 comprises a main pipe shell 411, a sliding piece 412, a stop 413, a connecting hole 414, a T-shaped air passage 415 and a pressure valve 416, the sliding piece 412 is inserted at two ends of the main pipe shell 411, the stop 413 is arranged on the side wall of one end, extending to the inner cavity of the main pipe shell 411, of the sliding piece 412, the connecting hole 414 is arranged at the other end of the sliding piece 412, the T-shaped air passage 415 used for communicating the inner cavity of the main pipe shell 411 with atmosphere is arranged inside the sliding piece 412, the pressure valve 416 is arranged at the upper end and the lower end of the T-shaped air passage 415, the telescopic rod 41 is a foundation for realizing the expansion of the hexagonal telescopic frame 4, the pressure valve 416 can be opened through applied external force to perform air intake and exhaust work, meanwhile, the hexagonal telescopic frame 4 is prevented from automatically opening, and the phenomenon that the signal preprocessing device 6 is accidentally scratched and damaged is effectively prevented;
the information processing assembly comprises a processor, an expansion processor, an alarm, a GPU and a bus, wherein the processor comprises a controller, an arithmetic unit and a memory, the controller, the arithmetic unit and the memory are connected in a bidirectional mode, the controller is further connected with the expansion processor and the GPU in a bidirectional mode respectively, the output end of the controller is connected with the input end of the alarm, the GPU is connected with the bus, the touch display device comprises a touch module, a liquid crystal module and an LED module, the output end of the touch module is electrically connected with the bus, the input end of the liquid crystal module is electrically connected with the bus, and the input end of the LED module is electrically connected with the bus;
the signal preprocessing device 6 comprises a low-pass filter, a gain amplifier, a level regulator, a D/A converter and a preprocessing processor formed by a preprocessing controller and a preprocessing arithmetic unit which are connected in a bidirectional mode, the output end of the low-pass filter is connected with the input end of the gain amplifier, the output end of the gain amplifier is connected with the input end of the level regulator, the output end of the level regulator is connected with the input end of the D/A converter, the output end of the D/A converter is connected with the input end of the preprocessing processor, the preprocessing processor is connected with the processor of the information processing assembly in a bidirectional mode, the receiving device 8 comprises a voltage transformer and a current transformer, and the voltage transformer and the current transformer are electrically connected with the input end of the low-pass filter through electric conductors.
Referring to fig. 1-3, 5 and 6, the present patent provides a second embodiment: a high-voltage cable non-contact electric leakage detection device comprises a base 1, a touch display device 2 is arranged on the front surface of the base 1, the included angle range between the touch display device 2 and the horizontal plane is forty-five degrees to seventy-five degrees, an information processing assembly is arranged inside the base 1, a hexagonal expansion bracket 4 is movably mounted on the upper surface of the base 1 through a support rod 3, the hexagonal expansion bracket 4 comprises six expansion rods 41, the six expansion rods 41 are sequentially connected, three signal preprocessing devices 6 are mounted on the hexagonal expansion bracket 4 through a movable intermediate 5, the movable intermediate 5 comprises a connecting column 521, a fixed semi-ring 522, a hasp 523, a supporting seat 524, a cavity 525 and rolling balls 526, one end of the connecting column 521 is hinged with two matched fixed semi-rings, the lower ends of the fixed semi-rings are connected through the hasp 523, so that the fixed semi-rings can be fixedly mounted on the hexagonal expansion bracket 4, the upper end of the connecting column 521 is inserted into the cavity 525 of the supporting seat 524, at least eight rolling balls 526 are uniformly distributed between the side wall of the connecting column 521 and the inner wall 525 of the cavity, the rolling balls 526 are movably connected through a stirring mechanism, so that the movable semi-ring 5 is capable of being inserted into the cavity 524, the dish-shaped expansion bracket is convenient for receiving device 7, and is convenient for receiving the dish-shaped signal preprocessing devices 7, and the dish-shaped signal preprocessing devices are mounted on the dish-shaped signal preprocessing devices 7;
the telescopic rod 41 comprises a main pipe shell 411, a sliding part 412, a stop block 413, a connecting hole 414, a T-shaped air passage 415 and a pressure valve 416, the sliding part 412 is inserted at two ends of the main pipe shell 411, the stop block 413 is arranged on the side wall of one end, extending to the inner cavity of the main pipe shell 411, of the sliding part 412, the connecting hole 414 is arranged at the other end of the sliding part 412, the T-shaped air passage 415 used for communicating the inner cavity of the main pipe shell 411 with atmosphere is arranged inside the sliding part 412, the pressure valve 416 is arranged at the upper end and the lower end of the T-shaped air passage 415, the telescopic rod 41 is a foundation for realizing the expansion of the hexagonal telescopic frame 4, the pressure valve 416 can be opened through applied external force to perform air intake and exhaust work, meanwhile, the hexagonal telescopic frame 4 is prevented from automatically opening, and the phenomenon that the signal preprocessing device 6 is accidentally scratched and damaged is effectively prevented;
the information processing assembly comprises a processor, an expansion processor, an alarm, a GPU and a bus, wherein the processor comprises a controller, an arithmetic unit and a memory, the controller, the arithmetic unit and the memory are connected in a bidirectional mode in pairs, the controller is further connected with the expansion processor and the GPU in a bidirectional mode respectively, the output end of the controller is connected with the input end of the alarm, the GPU is connected with the bus, the touch display device comprises a touch module, a liquid crystal module and an LED module, the output end of the touch module is electrically connected with the bus, the input end of the liquid crystal module is electrically connected with the bus, and the input end of the LED module is electrically connected with the bus;
the signal preprocessing device 6 comprises a low-pass filter, a gain amplifier, a level regulator, a D/A converter and a preprocessing processor formed by bidirectional connection of a preprocessing controller and a preprocessing arithmetic unit, wherein the output end of the low-pass filter is connected with the input end of the gain amplifier, the output end of the gain amplifier is connected with the input end of the level regulator, the output end of the level regulator is connected with the input end of the D/A converter, the output end of the D/A converter is connected with the input end of the preprocessing processor, the preprocessing processor is connected with the processor of the information processing assembly in a two-way mode, the receiving device 8 comprises a voltage mutual inductor and a current transformer, the voltage mutual inductor and the current transformer are electrically connected with the input end of the low-pass filter through electric conductors, and the design can accurately separate effective information of the voltage mutual inductor and the current transformer when signals are obtained, so that the information processing assembly can be conveniently further processed.
The working principle is as follows: the receiving device 8 receives the weak signal when the high-voltage cable leaks electricity, and transmits the weak signal to the signal preprocessing device 6 for preprocessing, which mainly comprises the steps of filtering, gain amplification and signal type conversion, and transmitting the signals to an information processing assembly, starting an expansion processor if the signals are abnormal during processing, generating a three-dimensional image through a GPU, displaying missing points through a touch display device 2, and sending an alarm by an alarm.
The receiving device 8 checks the high-voltage cable in a mutual inductance mode, the danger of close-distance contact maintenance performed by a technical worker is avoided, the touch display device 2, the information processing assembly and the signal preprocessing device 6 are used in a processing and matching mode, the technical worker can conveniently complete quick and accurate three-dimensional positioning on the high-voltage cable leakage point at the position of the invention, the problem of time waste and physical force waste during manual maintenance is avoided, when large-range detection is performed, only the hexagonal telescopic frame 4 needs to be unfolded, and meanwhile, the movable intermediate body 5 is adjusted, and meanwhile, the accurate positioning on the leakage point is facilitated.
The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.
Claims (5)
1. The utility model provides a high tension cable non-contact electric leakage detection device which characterized in that: the device comprises a base (1), wherein a touch display device (2) is arranged on the front surface of the base (1), an information processing assembly is arranged inside the base (1), a hexagonal expansion bracket (4) is movably arranged on the upper surface of the base (1) through a support rod (3), the hexagonal expansion bracket (4) comprises six expansion rods (41), the six expansion rods (41) are sequentially connected, three signal preprocessing devices (6) are arranged on the hexagonal expansion bracket (4) through movable intermediates (5), a disc-shaped cover (7) is fixedly arranged on the upper surface of each signal preprocessing device (6), a receiving device (8) is arranged in the disc-shaped cover (7), and the receiving device (8) is electrically connected with the signal preprocessing devices (6);
the telescopic rod (41) comprises a main pipe shell (411), a sliding piece (412), a stop block (413), a connecting hole (414), a T-shaped air passage (415) and a pressure valve (416), wherein the sliding piece (412) is inserted into two ends of the main pipe shell (411), the stop block (413) is arranged on the side wall of one end, extending to the inner cavity of the main pipe shell (411), of the sliding piece (412), the connecting hole (414) is formed in the other end of the sliding piece (412), the T-shaped air passage (415) used for communicating the inner cavity of the main pipe shell (411) with the atmosphere is formed in the sliding piece (412), and the pressure valve (416) is installed at the upper end and the lower end of the T-shaped air passage (415);
the information processing assembly comprises a processor, an expansion processor, an alarm, a GPU and a bus, wherein the processor comprises a controller, an arithmetic unit and a memory, the controller, the arithmetic unit and the memory are connected in a bidirectional mode in pairs, the controller is further connected with the expansion processor and the GPU in a bidirectional mode respectively, the output end of the controller is connected with the input end of the alarm, the GPU is connected with the bus, the touch display device (2) comprises a touch module, a liquid crystal module and an LED module, the output end of the touch module is electrically connected with the bus, the input end of the liquid crystal module is electrically connected with the bus, and the input end of the LED module is electrically connected with the bus;
the signal preprocessing device (6) comprises a low-pass filter, a gain amplifier, a level regulator, a D/A converter and a preprocessing processor formed by a preprocessing controller and a preprocessing arithmetic unit which are connected in a bidirectional mode, the output end of the low-pass filter is connected with the input end of the gain amplifier, the output end of the gain amplifier is connected with the input end of the level regulator, the output end of the level regulator is connected with the input end of the D/A converter, the output end of the D/A converter is connected with the input end of the preprocessing processor, the preprocessing processor is connected with a processor of an information processing component in a bidirectional mode, the receiving device (8) comprises a voltage transformer and a current transformer, and the voltage transformer and the current transformer are electrically connected with the input end of the low-pass filter through electric conductors;
the movable intermediate body (5) comprises a fixed roller (511), a groove body (512), an elastic piece (513), a spherical locking bolt (514) and a rotating roller (515), the groove body (512) is arranged on the side wall of the fixed roller (511), the elastic piece (513) is fixedly installed in the groove body (512), the spherical locking bolt (514) is installed at the upper end of the elastic piece (513), and the rotating roller (515) is sleeved on the outer side wall of the fixed roller (511);
the included angle range of the touch display device (2) and the horizontal plane is forty-five degrees to seventy-five degrees.
2. The non-contact leakage detecting device for a high-voltage cable according to claim 1, wherein: and a rubber anti-slip sleeve (516) is tightly attached to the inner side wall of the fixed roller (511).
3. The non-contact leakage detecting device of claim 1, the method is characterized in that: at least six groove bodies (512) are uniformly arranged on the side wall of the fixed roller (511), and the number of the elastic pieces (513) and the number of the spherical locking tongues (514) are the same as that of the groove bodies (512).
4. A high-voltage cable non-contact leakage detecting device according to claim 1, characterized in that: activity midbody (5) are including spliced pole (521), fixed semi-ring (522), hasp (523), supporting seat (524), cavity (525) and rolling ball (526), the one end of spliced pole (521) articulates there are two fixed semi-ring (522) that match and use, and the lower extreme of fixed semi-ring (522) passes through hasp (523) and connects, the upper end of spliced pole (521) alternates in cavity (525) of supporting seat (524), and evenly distributed has eight at least rolling ball (526) between the lateral wall of spliced pole (521) and cavity (525) inner wall.
5. The non-contact leakage detecting device for a high-voltage cable according to claim 4, wherein: the rolling balls (526) are movably connected through a fixing ring (527).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716851.5A CN106324431B (en) | 2016-08-24 | 2016-08-24 | High tension cable non-contact electric leakage detection device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610716851.5A CN106324431B (en) | 2016-08-24 | 2016-08-24 | High tension cable non-contact electric leakage detection device |
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| CN106324431A CN106324431A (en) | 2017-01-11 |
| CN106324431B true CN106324431B (en) | 2023-04-14 |
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| CN201610716851.5A Active CN106324431B (en) | 2016-08-24 | 2016-08-24 | High tension cable non-contact electric leakage detection device |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2018035753A1 (en) * | 2016-08-24 | 2018-03-01 | 张甘霖 | Non-contact electric leakage detection device for high-voltage cable |
| CN110095645A (en) * | 2019-04-26 | 2019-08-06 | 广西电网有限责任公司电力科学研究院 | A kind of contactless electrical quantity measurement arrangement |
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| JP3110313U (en) * | 2005-02-10 | 2005-06-16 | 義範 佐藤 | Leakage alarm system with integrated high voltage cable leakage detection function and integrated alarm system |
| CN203630262U (en) * | 2013-12-06 | 2014-06-04 | 国网山东夏津县供电公司 | Non-contact electric leakage detector |
| WO2015141241A1 (en) * | 2014-03-19 | 2015-09-24 | 株式会社小松製作所 | Electric leakage detection device for in-vehicle power supply system, and hydraulic shovel |
| CN105182171A (en) * | 2015-10-29 | 2015-12-23 | 国网山东高唐县供电公司 | Current leakage detection and alarming device for electric pole |
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|---|---|---|---|---|
| CA2463112A1 (en) * | 2001-10-24 | 2003-05-01 | Shell Canada Limited | In situ thermal processing of a hydrocarbon containing formation via backproducing through a heater well |
| JP3110313U (en) * | 2005-02-10 | 2005-06-16 | 義範 佐藤 | Leakage alarm system with integrated high voltage cable leakage detection function and integrated alarm system |
| CN203630262U (en) * | 2013-12-06 | 2014-06-04 | 国网山东夏津县供电公司 | Non-contact electric leakage detector |
| WO2015141241A1 (en) * | 2014-03-19 | 2015-09-24 | 株式会社小松製作所 | Electric leakage detection device for in-vehicle power supply system, and hydraulic shovel |
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Effective date of registration: 20230328 Address after: No. 1, 7th Floor, Jinyuan Group Office Building, 296 Jinyang North Road, Guanshanhu District, Guiyang City, Guizhou Province, 550000 Applicant after: Guizhou Yuanlong Comprehensive Energy Industry Service Co.,Ltd. Address before: C-202, Building 6, Dingtai Fenghua Community, No. 1085 Qianhai Road, Nanshan District, Shenzhen, Guangdong Province, 518000 Applicant before: Zhang Ganlin |
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