CN119738652A - A method and device for fault diagnosis and protection of electric power system - Google Patents
A method and device for fault diagnosis and protection of electric power system Download PDFInfo
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- CN119738652A CN119738652A CN202411682844.9A CN202411682844A CN119738652A CN 119738652 A CN119738652 A CN 119738652A CN 202411682844 A CN202411682844 A CN 202411682844A CN 119738652 A CN119738652 A CN 119738652A
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- fault diagnosis
- working box
- power system
- protection device
- fixedly installed
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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
本发明属于电力系统诊断保护领域，具体的说是一种电力系统故障诊断保护方法及装置，包括底板；滑动安装于底板顶部的工作箱；活动安装于工作箱内腔的故障诊断保护装置主体；所述故障诊断保护装置主体一侧开设有两个插线孔，所述工作箱一侧开设有两个通线孔，所述工作箱外表面固定安装有两个固线块，两个所述固线块顶部共同滑动安装有压紧板，所述固线块通过通线孔与工作箱内腔相贯通；通过第二电机输出轴带着螺纹杆转动，螺纹杆驱动压紧板向下移动，压紧板配合固线块将线夹紧，使用时在故障诊断系统检测出故障时，螺纹杆反转驱动压紧板向上移动，同时电动伸缩杆伸长弧形板将线从插线孔移出，实现断电的目的，同时配合警示灯对工作人员加以提醒。
The present invention belongs to the field of power system diagnosis and protection, and specifically, is a power system fault diagnosis and protection method and device, comprising a base plate; a working box slidably mounted on the top of the base plate; a fault diagnosis and protection device body movably mounted in the inner cavity of the working box; two wire insertion holes are provided on one side of the fault diagnosis and protection device body, two wire through holes are provided on one side of the working box, two wire fixing blocks are fixedly mounted on the outer surface of the working box, a clamping plate is slidably mounted on the top of the two wire fixing blocks, and the wire fixing blocks are connected with the inner cavity of the working box through the wire through holes; the threaded rod is rotated by the second motor output shaft, the threaded rod drives the clamping plate to move downward, and the clamping plate cooperates with the wire fixing block to clamp the wire, and when the fault diagnosis system detects a fault during use, the threaded rod reverses to drive the clamping plate to move upward, and at the same time, the electric telescopic rod extends the arc plate to move the wire out of the wire insertion hole, thereby achieving the purpose of power off, and at the same time, a warning light is used to remind the staff.
Description
Technical Field
The invention relates to the field of power system fault diagnosis protection, in particular to a power system fault diagnosis protection method and device.
Background
The fault diagnosis and protection method of the power system is one of key technologies in the operation of the power system, relates to the stability, the safety and the reliability of the power system, has great significance for the development of the power system, and is continuously updated and upgraded along with the rapid development of computer technologies, communication technologies and artificial intelligence technologies.
Through searching, the patent document with the publication number CN 113286461B discloses a distribution line diagnosis device with a reinforced safety protection structure, which comprises a device body, a protection shell, first shock absorption components and second shock absorption components, wherein the device body is arranged in the protection shell, the two sides of the protection shell are respectively provided with the first shock absorption components, and the second shock absorption components are arranged at the bottom of the protection shell.
Because the device body sets up in the protective housing, protective housing's both sides are provided with a first damper respectively to can improve the device body left and right sides and receive the ability of striking the collision, protective housing bottom second damper's setting simultaneously can effectively cushion and come from the ascending impact of vertical direction, further improved the device body and receive the ability of striking, because the electric wire is to be connected on diagnostic device body during the use, and need in time make electric wire and diagnosis protection device break away from when electric power system breaks down and above-mentioned device is difficult to accomplish the work that diagnostic device breaks away from with the electric wire when electric power system breaks down.
Here we provide a power system fault diagnosis protection device.
Disclosure of Invention
Therefore, the invention aims to solve the technical problem that the wire and the fault detection device are inconvenient to separate when faults occur in the prior art.
In order to solve the above technical problems, the present invention provides a diagnostic protection device for an electric power system, including:
A bottom plate;
the working box is slidably arranged at the top of the bottom plate;
A fault diagnosis protection device main body movably mounted in the inner cavity of the working box;
Two plug wire holes are formed in one side of the fault diagnosis protection device main body, two through wire holes are formed in one side of the working box, two wire fixing blocks are fixedly arranged on the outer surface of the working box, the tops of the two wire fixing blocks are jointly and slidably provided with a compression plate, and the wire fixing blocks are communicated with the inner cavity of the working box through the through wire holes.
In one embodiment of the invention, four first grooves are formed in the top of the bottom plate, a limiting rod is slidably arranged on the inner surface of each first groove, first springs are wound on the outer surface of each limiting rod, connecting plates are fixedly connected to the bottom of each limiting rod, the four connecting plates are fixedly arranged on the outer surface of the working box together, four second springs are uniformly and fixedly arranged on the bottom of the working box, and the four second springs are fixedly arranged on the top of the bottom plate.
In one embodiment of the invention, a second groove is formed in one side of the working box, a sealing plate is rotatably arranged on the inner surface of the second groove, a supporting rod is fixedly arranged on the base part of the working box, fourth grooves are formed in two sides of the working box, a shutter is fixedly arranged on the inner surface of each fourth groove, two third grooves are formed in the top of the working box, and a fixing frame is fixedly arranged on the inner surface of each third groove.
In one embodiment of the invention, four vertical rods are uniformly and fixedly arranged in the inner cavity of the working box, two sliding blocks are slidably arranged on the outer surfaces of the vertical rods, a third spring is wound on the outer surfaces of the vertical rods, the four sliding blocks on the same side are fixedly connected with a spring piece together, three limiting blocks are fixedly arranged on the inner wall of the working box, and a vent hole is formed in the bottom of the working box.
In one embodiment of the invention, a plurality of fourth springs are fixedly arranged on the inner wall of the working box, and one ends of the fourth springs are fixedly connected with a baffle plate.
In one embodiment of the invention, a first belt pulley is rotatably arranged in the inner cavity of the fixing frame, the bottom of the first belt pulley is fixedly connected with fan blades, the top of the working box is fixedly provided with a first motor, the output shaft of the first motor is fixedly connected with a second belt pulley, and the two first belt pulleys and the second belt pulley are driven by a belt.
In one embodiment of the invention, a top cover is fixedly arranged at the top of the working box, a warning lamp is fixedly arranged at the top of the top cover, a vent pipe is fixedly arranged at the top of the top cover, one end of the vent pipe penetrates into an inner cavity of the top cover, the other end of the vent pipe penetrates into the inner cavity of the working box through a vent hole, a cooling box is fixedly connected to the outer surface of the vent pipe, the cooling box is fixedly arranged at the top of the top cover, and a plurality of semiconductor refrigerating sheets are fixedly arranged in the inner cavity of the cooling box.
In one embodiment of the invention, the outer surface of the working box is fixedly provided with a mounting frame, the top of the mounting frame is fixedly provided with a second motor, and the output shaft of the second motor penetrates through the top of the mounting frame and is fixedly connected with a threaded rod.
In one embodiment of the invention, the compression plate is slidably mounted on the inner surface of the mounting frame, a threaded hole is formed in the top of the mounting frame, and the threaded rod is in threaded fit with the threaded hole.
In one embodiment of the invention, two connecting pieces are fixedly arranged on one side of the mounting frame, an electric telescopic rod is fixedly arranged at the bottom of each connecting piece, and an arc-shaped plate is fixedly connected to the output end of each electric telescopic rod.
A fault diagnosis protection method for an electric power system, the method comprising the steps of:
S1, creating a fault diagnosis protection task of a power system;
S2, inputting a data threshold value of the power system in normal operation into the fault diagnosis protection system;
s3, detecting the power system by a fault diagnosis protection system when the power system works, and if the detection data is within a threshold value, normally working;
And S4, detecting the power system by the fault diagnosis protection system when the power system works, and if the detection data is not within the threshold value, powering off and giving an alarm.
Compared with the prior art, the technical scheme of the invention has the following advantages:
according to the fault diagnosis protection device for the electric power system, the fault diagnosis protection device body is connected with a circuit through the wire insertion hole, then the second motor output shaft drives the threaded rod to rotate, the threaded rod rotates on the inner surface of the threaded hole to drive the pressing plate to move downwards, the pressing plate is matched with the wire fixing block to clamp the wire, when the fault diagnosis system detects faults in use, the second motor output shaft drives the threaded rod to rotate reversely and drive the pressing plate to move upwards, the limitation of the wire is relaxed, meanwhile, the electric telescopic rod stretches, the arc plate is supported against the wire, the wire is moved out of the wire insertion hole along with the stretching of the arc plate of the electric telescopic rod, the purpose of power failure is achieved, and meanwhile, a warning lamp is matched to remind workers.
According to the fault diagnosis protection device for the electric power system, the fault diagnosis protection device main body can be clamped in the inner cavity of the working box through the fourth spring, the baffle plate and the two spring pieces, and the impact on the fault diagnosis protection device main body caused by the impact can be reduced when the working box encounters the impact by matching with the second spring and the first spring, so that the impact on the normal operation of the fault diagnosis protection device main body caused by external factors is reduced.
According to the fault diagnosis protection device for the electric power system, the output shaft of the first motor drives the second belt pulley to rotate, and the two first belt pulleys can respectively drive the two fan blades to rotate through belt transmission, so that the purposes of air circulation and cooling of the working box and the top cover inner cavity are achieved, the cooling box on the outer surface of the ventilation pipe is matched with the semiconductor refrigerating sheet, the ventilation pipe and the air in the ventilation pipe can be cooled, and the purpose of finally cooling the working box and the top cover inner cavity of the fault diagnosis protection device is achieved.
Drawings
In order that the invention may be more readily understood, a more particular description of the invention will be rendered by reference to specific embodiments thereof that are illustrated in the appended drawings.
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of a floor support structure of the present invention;
FIG. 3 is a schematic view of the internal structure of the working box of the present invention;
FIG. 4 is a schematic view of a fourth spring connection structure according to the present invention;
FIG. 5 shows the top cover of the present invention schematic diagram of inner cavity structure;
FIG. 6 is a schematic view of a compacting plate driving mechanism of the present invention;
fig. 7 is a flow chart of the present invention.
The specification is that 1, a bottom plate, 11, a first groove, 12, a limit rod, 13, a first spring, 14, a connecting plate, 15, a second spring, 2, a working box, 21, a second groove, 211, a sealing plate, 22, a third groove, 221, a fixing frame, 222, a first belt pulley, 223, a fan blade, 224, a belt, 225, a first motor, 226, a second belt pulley, 23, a fourth groove, 231, a shutter, 24, a vertical rod, 241, a sliding block, 242, a third spring, 243, a spring piece, 25, a limiting block, 26, a wire through hole, 27, a fourth spring, 271, a baffle, 28, a vent hole, 29, a supporting rod, 3, a top cover, 31, a warning lamp, 32, a vent pipe, 33, a cooling box, 331, a semiconductor refrigerating plate, 4, a fault diagnosis protection device main body, 41, a wire insertion hole, 51, a wire fixing block, 52, a mounting frame, 53, a second motor, 54, a threaded rod, 55, a pressing plate, 551, a threaded hole, 56, a connecting piece, 561, an electric telescopic rod.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific examples, which are not intended to be limiting, so that those skilled in the art will better understand the invention and practice it.
Referring to fig. 1 to 6, the fault diagnosis protection device for the electric power system comprises a base plate 1, a working box 2 slidably mounted on the top of the base plate 1, and a fault diagnosis protection device main body 4 movably mounted in the inner cavity of the working box 2, wherein two wire insertion holes 41 are formed in one side of the fault diagnosis protection device main body 4, two wire through holes 26 are formed in one side of the working box 2, two wire fixing blocks 51 are fixedly mounted on the outer surface of the working box 2, a compression plate 55 is slidably mounted on the top of each of the two wire fixing blocks 51, and the wire fixing blocks 51 are communicated with the inner cavity of the working box 2 through the wire through holes 26.
The power diagnosis protection device always detects the safe use of the circuit, firstly, a protection task is input into a fault diagnosis protection system, then a monitoring data threshold value when the power system works normally is input into the fault diagnosis protection system, then the fault diagnosis protection device main body 4 is connected with a wire and used, the fault diagnosis protection system always detects the wire in the use process, data on the wire is between the data threshold values when the wire is used normally, and when the data on the wire exceeds or is lower than the threshold value, the fault diagnosis protection system can actively cut off the power to detect the wire.
During use, wires are inserted into the wire inserting holes 41 in the fault diagnosis protection device main body 4 in the working box 2 through the wire fixing blocks 51, at the moment, the two wires are connected through the fault diagnosis protection device main body 4, the fault diagnosis protection device main body 4 can safely monitor a circuit formed by the two wires during use, and after the wires pass through the wire fixing blocks 51, the pressing plate 55 is driven to move downwards and matched with the wire fixing blocks 51 to press the two wires, so that the wires are prevented from being separated from the fault diagnosis protection device main body 4 during use, and faults occur.
Further, as shown in fig. 2, in the fault diagnosis protection device for the electric power system, four first grooves 11 are formed in the top of the bottom plate 1, a limiting rod 12 is slidably mounted on the inner surface of each first groove 11, a first spring 13 is wound on the outer surface of each limiting rod 12, a connecting plate 14 is fixedly connected to the bottom of each limiting rod 12, four connecting plates 14 are fixedly mounted on the outer surface of the working box 2 together, four second springs 15 are uniformly and fixedly mounted on the bottom of the working box 2, and four second springs 15 are fixedly mounted on the top of the bottom plate 1.
When the invention is used, the working box 2 is supported by the four second springs 15, the four limiting rods 12 slide on the inner surfaces of the first grooves 11, so that the limiting effect on the working box 2 can be achieved, when the working box 2 is in collision, the four first springs 13 play a role in pulling the working box 2, and when the working box 2 is in collision, the first springs 13 and the second springs 15 are matched, so that part of impact force on the working box 2 can be absorbed.
Further, as shown in fig. 3 and fig. 4, a second groove 21 is formed on one side of the working box 2, a sealing plate 211 is rotatably mounted on the inner surface of the second groove 21, a supporting rod 29 is fixedly mounted on the base portion of the working box 2, fourth grooves 23 are formed on two sides of the working box 2, a shutter 231 is fixedly mounted on the inner surface of the fourth grooves 23, two third grooves 22 are formed on the top of the working box 2, and a fixing frame 221 is fixedly mounted on the inner surface of the third grooves 22;
Four vertical rods 24 are uniformly and fixedly arranged in the inner cavity of the working box 2, two sliding blocks 241 are slidably arranged on the outer surfaces of the vertical rods 24, a third spring 242 is wound on the outer surfaces of the vertical rods 24, the four sliding blocks 241 on the same side are fixedly connected with a spring piece 243 together, three limiting blocks 25 are fixedly arranged on the inner wall of the working box 2, and vent holes 28 are formed in the bottom of the working box 2;
the inner wall of the working box 2 is fixedly provided with a plurality of fourth springs 27, and one ends of the fourth springs 27 are fixedly connected with a baffle 271.
When the fault diagnosis protection device is used, the fault diagnosis protection device main body 4 is placed in the inner cavity of the working box 2 through the second groove 21, two sides of the fault diagnosis protection device main body 4 are propped against by the two spring pieces 243, when the outside of the working box 2 is impacted, the fault diagnosis protection device main body 4 can shake and press the spring pieces 243 on two sides, the spring pieces 243 drive the sliding blocks 241 to slide along the vertical rods 24, at the moment, the sliding blocks 241 can press the third springs 242, the third springs 242 can absorb the force caused by partial impact, the impact on the fault diagnosis protection device main body 4 is further reduced, in order to further avoid the excessive impact on the fault diagnosis protection device main body 4 when the working box 2 is impacted, the baffle plates 271 are connected to prop against one side of the fault diagnosis protection device main body 4 through the plurality of fourth springs 27, and the other side of the fault diagnosis protection device main body 4 is tightly clung to the limiting blocks 25, so that not only can sufficient shaking space be reserved for the fault diagnosis protection device main body 4, but also can ensure the stability of the fault diagnosis protection device main body 4 in the working box 2, and severe displacement or impact on the normal use of the fault diagnosis protection device main body 4 is avoided;
During the use, because fault diagnosis protection device main part 4 can generate heat at the during operation, consequently when the temperature is not high, the staff can be through opening shutter 231 and carry out ventilation treatment to the inner chamber of work box 2, realizes the radiating purpose to the inner chamber of work box 2, and this can be when the temperature is not high to fault diagnosis protection device main part 4 cooling, plays the purpose of saving electric power.
Further, as shown in fig. 5, a first belt pulley 222 is rotatably installed in the inner cavity of the fixing frame 221, a fan blade 223 is fixedly connected to the bottom of the first belt pulley 222, a first motor 225 is fixedly installed at the top of the working box 2, an output shaft of the first motor 225 is fixedly connected with a second belt pulley 226, and the two first belt pulleys 222 and the second belt pulley 226 are driven by the belt 224;
the utility model discloses a semiconductor refrigerating plate, including work box 2, roof 2 top fixed mounting has top cap 3, roof 3 top fixed mounting has warning light 31, roof 3 top fixed mounting has breather pipe 32, breather pipe 32 one end runs through to roof 3 inner chamber, the breather pipe 32 other end runs through to work box 2 inner chamber through air vent 28, breather pipe 32 surface fixedly connected with cooling tank 33, cooling tank 33 fixed mounting is at roof 3 top, cooling tank 33 inner chamber fixed mounting has a plurality of semiconductor refrigerating plate 331.
When the temperature of the inner cavity of the working box 2 is too high, the shutter 231 is first closed, the output shaft of the first motor 225 rotates with the second belt pulley 226, the other two first belt pulleys 222 start to rotate through the belt 224, the first belt pulleys 222 drive the fan blades 223 to rotate, the air in the inner cavity of the top cover 3 can be blown into the inner cavity of the working box 2, the air in the inner cavity of the working box 2 flows out through the vent holes 28, the flowing air enters the vent pipe 32, when the air flows in the vent pipe 32 and passes through the cooling box 33, the semiconductor refrigerating sheets 331 in the inner cavity of the cooling box 33 can reduce the temperature of water in the inner cavity of the cooling box 33, the water can cool the vent pipe 32, the temperature of the air in the inner cavity of the vent pipe 32 is further reduced, the cooled air enters the inner cavity of the top cover 3 through the vent pipe 32, the air inner circulation of the working box 2 and the inner cavity of the top cover 3 can be realized, and the purpose of cooling the fault diagnosis protection device main body 4 can be achieved.
Further, as shown in fig. 6, the outer surface of the working box 2 is fixedly provided with a mounting frame 52, the top of the mounting frame 52 is fixedly provided with a second motor 53, and an output shaft of the second motor 53 penetrates through the top of the mounting frame 52 and is fixedly connected with a threaded rod 54;
the pressing plate 55 is slidably mounted on the inner surface of the mounting frame 52, a threaded hole 551 is formed in the top of the mounting frame 52, and the threaded rod 54 is in threaded mounting on the inner surface of the threaded hole 551;
Two connecting pieces 56 are fixedly arranged on one side of the mounting frame 52, an electric telescopic rod 561 is fixedly arranged at the bottom of the connecting pieces 56, and an arc plate 562 is fixedly connected to the output end of the electric telescopic rod 561.
When the fault diagnosis protection device is used, firstly, two wires respectively pass through the two wire fixing blocks 51, the wire ends are finally propped against the inner cavity of the wire insertion hole 41, then, the output shaft of the second motor 53 is used for carrying the threaded rod 54, the threaded rod 54 rotates on the inner surface of the threaded hole 551, the pressing plate 55 is started to move downwards and press the wires, so that the connection between the wires and the fault diagnosis protection device main body 4 is more stable, when a fault diagnosis protection system detects that a fault occurs in the wires, the output shaft of the second motor 53 is used for carrying the threaded rod 54 to overturn, so that the pressing plate 55 moves upwards to release the restriction of the wires of the pressing plate 55, and meanwhile, the electric telescopic rod 561 is extended, so that the arc plate 562 is contacted with the wires and extrudes the wires out of the wire insertion hole 41, thereby realizing the power-off purpose, and meanwhile, when the fault occurrence of the wires is detected, the warning lamp 31 is continuously lighted so as to remind a worker to quickly find the fault and release the fault.
A fault diagnosis protection method for an electric power system comprises the following steps:
S1, creating a fault diagnosis protection task of a power system;
S2, inputting a data threshold value of the power system in normal operation into the fault diagnosis protection system;
s3, detecting the power system by a fault diagnosis protection system when the power system works, and if the detection data is within a threshold value, normally working;
And S4, detecting the power system by the fault diagnosis protection system when the power system works, and if the detection data is not within the threshold value, powering off and giving an alarm.
According to the working principle, firstly, the wire heads of two wires penetrate through the wire fixing block 51 and are inserted into the wire inserting hole 41, then the output shaft of the second motor 53 drives the threaded rod 54 to rotate, the threaded rod 54 rotates on the inner surface of the threaded hole 551 to drive the pressing plate 55 to move downwards, the pressing plate 55 is matched with the wire fixing block 51 to clamp the wires, when a fault diagnosis system detects faults in use, the output shaft of the second motor 53 drives the threaded rod 54 to rotate reversely and drive the pressing plate 55 to move upwards, the limitation of the wires is relaxed, meanwhile, the electric telescopic rod 561 stretches, the arc plate 562 is supported against the wires, the wire is moved out of the wire inserting hole 41 along with the stretching of the electric telescopic rod 561, the purpose of power outage is achieved, and meanwhile, the electric telescopic rod is matched with the warning lamp 31 to remind workers.
During the use, can press from both sides the fault diagnosis protection device main part 4 tight at work box 2 inner chamber through fourth spring 27, baffle 271 and two spring leaves 243, cooperation second spring 15 and first spring 13 can reduce the impact that the striking produced to fault diagnosis protection device main part 4 when work box 2 meetting the striking, reduced the influence that external factor led to the fact to the normal work of fault diagnosis protection device main part 4, rotate through first motor 225 output shaft and drive second belt pulley 226, can make two first belt pulleys 222 drive two flabellum 223 rotation respectively through the belt 224 transmission, with the purpose of realizing air circulation and cooling to work box 2 and top cap 3 inner chamber, cooling down to the air in breather pipe 32 and the breather pipe 32 through the cooler bin 33 cooperation semiconductor refrigeration piece 331 of breather pipe 32 surface, and then reached the purpose of finally cooling down to fault diagnosis protection device main part 4 to work box 2 and top cap 3 inner chamber.
It is apparent that the above examples are given by way of illustration only and are not limiting of the embodiments. Other variations and modifications of the present invention will be apparent to those of ordinary skill in the art in light of the foregoing description. It is not necessary here nor is it exhaustive of all embodiments. And obvious variations or modifications thereof are contemplated as falling within the scope of the present invention.
Claims (10)
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202411682844.9A CN119738652A (en) | 2024-11-22 | 2024-11-22 | A method and device for fault diagnosis and protection of electric power system |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202411682844.9A CN119738652A (en) | 2024-11-22 | 2024-11-22 | A method and device for fault diagnosis and protection of electric power system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120908603A (en) * | 2025-10-09 | 2025-11-07 | 南通同裕光电科技有限公司 | Ground fault diagnosis device for power distribution network |
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- 2024-11-22 CN CN202411682844.9A patent/CN119738652A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN120908603A (en) * | 2025-10-09 | 2025-11-07 | 南通同裕光电科技有限公司 | Ground fault diagnosis device for power distribution network |
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