CN114624532A - Stray current corrosion resistant power grid detection device - Google Patents

Stray current corrosion resistant power grid detection device Download PDF

Info

Publication number
CN114624532A
CN114624532A CN202210247392.6A CN202210247392A CN114624532A CN 114624532 A CN114624532 A CN 114624532A CN 202210247392 A CN202210247392 A CN 202210247392A CN 114624532 A CN114624532 A CN 114624532A
Authority
CN
China
Prior art keywords
stray current
detection box
detection
power grid
current corrosion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN202210247392.6A
Other languages
Chinese (zh)
Other versions
CN114624532B (en
Inventor
程宏波
谢子宁
卢伟楠
伦利
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
HUBEI ELECTRIC POWER Co JINGZHOU POWER SUPPLY Co
Jingzhou Jingli Engineering Design Consulting Co ltd
Shishou Power Supply Co of State Grid Hubei Electric Power Co Ltd
Original Assignee
Jiangxi Ruierte Electric Technology Co ltd
East China Jiaotong University
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Jiangxi Ruierte Electric Technology Co ltd, East China Jiaotong University filed Critical Jiangxi Ruierte Electric Technology Co ltd
Priority to CN202210247392.6A priority Critical patent/CN114624532B/en
Publication of CN114624532A publication Critical patent/CN114624532A/en
Application granted granted Critical
Publication of CN114624532B publication Critical patent/CN114624532B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • 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

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electric Cable Installation (AREA)

Abstract

The invention relates to the technical field of electric power detection, in particular to a stray current corrosion resistant power grid detection device. The device specifically comprises a detection box and a detector in the detection box; wherein still include: the detection box is fixedly arranged inside the protection base; the connecting device is used for weakening the influence of stray current when the cable is connected with the detector in the detection box and is arranged on the protective base; the collecting device is used for collecting stray current on the detection box, is arranged on one side of the outer wall of the detection box and is electrically connected with the controller; the controller is arranged in the detection box and used for judging whether stray current collected by the collecting device exceeds a preset threshold value or not, judging whether the monitored stray current leakage condition seriously exceeds the standard or not through the overflow time difference of the stray current, and if the stray current on the surface of the detection equipment exceeds the standard, drainage needs to be carried out on the stray current in time to ensure normal operation of the equipment.

Description

Stray current corrosion resistant power grid detection device
Technical Field
The invention relates to the technical field of electric power detection, in particular to a stray current corrosion resistant power grid detection device.
Background
The subway adopts direct current to pull the power supply mode, can produce stray current's influence between the rail ground, stray current can produce stronger corrosion to metal object along the line, bring huge security threat for the grounded metal especially metal pipeline along the line, so need to restrain the stray current along the subway line urgently, and want the distribution law of analysis subway stray current along the subway line, just detect after need overcoming the stray current along the subway line, the analysis stray current is to the corrosion mechanism of near metal object, in order to guarantee the normal of electric wire netting data, current electric wire netting detection device all is the connecting cable usually to detect, it receives stray current's environmental impact factor great, corrode check out test set easily, this can lead to check out test set detection error big in the past, the security is lower.
Disclosure of Invention
Technical problem to be solved
The invention aims to overcome the defects of the prior art, and provides a power grid detection device resistant to stray current corrosion, which solves the problems.
(II) technical scheme
The technical scheme of the invention is as follows: a stray current corrosion resistant power grid detection device comprises a detection box and a detector in the detection box; wherein still include:
a protective upper shell;
the protective base is spirally connected with the protective upper shell, and the detection box is fixedly arranged in the protective base;
the connecting device is used for weakening the influence of stray current when the cable is connected with the detector in the detection box and is arranged on the protective base;
the collecting device is used for collecting stray current on the detection box, is arranged on one side of the outer wall of the detection box and is electrically connected with the controller;
the controller is arranged in the detection box and used for judging whether the stray current collected by the collecting device exceeds a preset threshold value or not, and if the stray current exceeds the preset threshold value, the controller is linked with the warning device to act so as to early warn inspectors;
and the warning device is used for warning the patrol personnel after the stray current exceeds a threshold value.
As a further improvement of the technical scheme, the connecting device comprises a cable pressing inlet, a clamping disc, a grounding ring and a connecting column, the cable pressing inlet and the clamping disc are arranged in the protective base, the grounding ring led into the ground is arranged on the inner wall of the cable pressing inlet, so that partial current can be conveniently led into the ground through the grounding ring after the cable is connected, the direct influence on the detection equipment is avoided, the connecting column is arranged in the protective base and used for connecting the cable penetrating into the protective base, and the other end of the connecting column is connected to a collector in the detection box.
As a further improvement of the technical scheme of the invention, the connecting column is electrically connected with the collector through the conducting wire slot and the wire end, wherein the conducting wire slot is arranged in the protective base and penetrates through the bottom of the detection box to be connected to the wire end of the detection box, and the wire end is electrically connected with the collector.
As a further improvement of the technical scheme of the invention, the acquisition device is preferably a charge sensor, the charge sensor is electrically connected with the level input end of the controller, and the charge sensor can be used in combination with a voltage sensor.
As a further improvement of the technical scheme of the invention, a display screen for information lookup is arranged at the top of the detection box, the display screen is electrically connected with the detector, and the display screen is arranged right below the PMMA circular plate.
As a further improvement of the technical scheme of the invention, the warning device comprises an indicator, the indicator is fixedly arranged at the top of one side of the detection box through a spiral binding post, the top of the indicator is hermetically sleeved with a transparent protective cover, and the transparent protective cover is preferably made of a high-light-transmittance material.
As a further improvement of the technical scheme of the invention, the controller can preferably adopt an STM32 singlechip.
As a further improvement of the technical scheme of the invention, a visual PMMA circular plate is arranged at the top of the protective upper shell; a light outlet cover for leading out light of the indicator is arranged on one side of the protective upper shell, so that abnormal reminding of stray current is facilitated.
As a further improvement of the technical scheme of the invention, the protective base is provided with a plurality of preset locking holes for locking and fixing.
As a further improvement of the technical scheme of the invention, the side wall of the protective base is provided with a plurality of layers of reflective sleeves, so that the protective base is convenient to identify and warn at night.
As a further improvement of the technical scheme of the invention, in particular, the invention can also be connected with a drainage cabinet, so that the collected stray current can be conveniently discharged through the drainage cabinet, and the corrosion influence of the stray current on equipment is reduced.
The invention not only can directly avoid the detection equipment from being influenced by the corrosion of the subway stray current and weaken the metal corrosion of the stray current to the equipment, but also can provide a stray current monitoring system for monitoring the surface of the protected detection equipment on line.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a schematic diagram of the stray current trend of the present invention;
reference numerals are as follows: the device comprises a protective upper shell 1, a PMMA circular plate 101, a light-emitting cover 102, a light-reflecting sleeve 103, a protective base 2, a preset locking hole 201, a cable pressure inlet 202, a clamping disc 203, a grounding ring 204, a connecting column 3, a conducting wire slot 301, a wire end 302, a collector 303, a detection box 4, a charge sensor 401, a display screen 402, an indicator 403, a transparent protective cover 4031, a spiral binding post 4032, a controller 404 and a detector 5.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Embodiment 1, please refer to fig. 1 and fig. 2, a stray current corrosion resistant power grid detection device includes a detection box 4 and a detector 5 in the detection box 4; wherein, the utility model also comprises a protective upper shell 1; the protective base 2 is spirally connected with the protective upper shell 1, and the detection box 4 is fixedly arranged inside the protective base 2; the connecting device is used for weakening the influence of stray current when a cable is connected with the detector 5 in the detection box 4 and is arranged on the protective base 2; the collecting device is used for collecting stray current on the detection box 4, is arranged on one side of the outer wall of the detection box 4 and is electrically connected with the controller 404; the controller 404 may preferably be an STM32 single chip microcomputer; the controller 404 is arranged in the detection box 4 and is used for judging whether the stray current collected by the collecting device exceeds a preset threshold value or not, and if the stray current exceeds the preset threshold value, the controller is linked with the warning device to act so as to early warn inspectors; the warning device is used for warning the inspection personnel after the stray current exceeds a threshold value, and a visual PMMA circular plate 101 is arranged at the top of the protective upper shell 1; the light-emitting cover 102 for leading out light of the indicator 403 is arranged on one side of the protective upper shell 1, so that abnormal reminding of stray current is facilitated.
In this embodiment, the protection base 2 is provided with a plurality of preset locking holes 201 for locking and fixing the invention; the lateral wall of the protective base 2 is provided with a plurality of layers of reflective sleeves 103, so that the reflective sleeves can be recognized and warned at night conveniently.
In this embodiment, connecting device includes that cable pressure inlet 202, clamping disk 203, ground ring 204 and spliced pole 3 are equipped with cable pressure inlet 202 and clamping disk 203 in the protection base 2, cable pressure inlet 202 inner wall is equipped with leading-in to secret ground ring 204, makes things convenient for the cable to pass through the leading-in underground of ground ring with partial current after inserting, avoids direct influence check out test set, and spliced pole 3 sets up in protection base 2 for connect and penetrate to the cable in the protection base 2, the 3 other ends of spliced pole are connected to the collector 303 in the detection case 4, furtherly, wherein spliced pole 3 is connected with collector 303 through switching on wire casing 301 and line end 302 electricity, and wherein switching on wire casing 301 and locate inside the protection base 2, run through the line end 302 that detection case 4 bottom is connected to detection case 4, and line end 302 is connected with collector 303 electricity.
In this embodiment, a display screen 402 for information review is disposed on the top of the detection box 4, the display screen 402 is electrically connected to the detector 5, and the display screen 402 is disposed right below the PMMA circular plate 101.
In this embodiment, the collecting device is preferably a charge sensor 401, the charge sensor 401 is electrically connected to the level input terminal of the controller 404, and the charge sensor 401 can be used in combination with a voltage sensor.
In this embodiment, the warning device includes an indicator 403, the indicator 403 is fixedly mounted on the top of one side of the detection box 4 through a screw terminal 4032, a transparent protective cover 4031 is hermetically sealed on the top of the indicator 403, and the transparent protective cover 4031 is preferably made of a high-light-transmittance material.
When in engineering installation, the device is locked on an earth surface installation seat through a preset locking hole 201, a cable penetrates into the protection chassis 2 through the cable pressure inlet 202, the diameter of the cable pressure inlet 202 is a passage which is gradually reduced, at the moment, the grounding ring 204 is in contact with the surface of the cable, most of stray current is conveniently led into the ground, part of tiny stray current can be collected by the charge sensor 401 of the detection box, when enough charges are accumulated to form potential difference, a level signal is transmitted to the controller 404, the controller 404 is linked with the indicator 3 to work, an early warning signal is sent out and linked with a central control room connected with the controller 404, when an inspector arrives and checks and releases the accumulated stray current (as shown in figure 3), the corrosion influence of the stray current on power grid detection equipment is reduced, as a further improvement of the invention, the invention can also be connected with a drainage cabinet, and the collected stray current can be conveniently discharged through the drainage cabinet, reduce the corrosive influence of the stray current on the equipment.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (8)

1.一种耐杂散电流腐蚀的电网检测设备，包括检测箱(4)以及检测箱(4)内的检测器(5)；其特征在于，还包括：1. A power grid detection device resistant to stray current corrosion, comprising a detection box (4) and a detector (5) in the detection box (4); it is characterized in that, also comprises: 防护上壳(1)；Protective upper shell (1); 防护底座(2)，所述防护底座(2)与防护上壳(1)螺旋连接，检测箱(4)固定安装于防护底座(2)内部；a protective base (2), the protective base (2) is screwed with the protective upper shell (1), and the detection box (4) is fixedly installed inside the protective base (2); 连接装置，用于电缆与检测箱(4)内的检测器(5)连接时削弱杂散电流的影响，所述连接装置设置于防护底座(2)上；a connection device for reducing the influence of stray current when the cable is connected to the detector (5) in the detection box (4), the connection device is arranged on the protective base (2); 采集装置，用于采集检测箱(4)上的杂散电流，设置于检测箱(4)外壁一侧，与控制器(404)电连接；a collection device for collecting stray currents on the detection box (4), arranged on one side of the outer wall of the detection box (4), and electrically connected to the controller (404); 控制器(404)，设置于检测箱(4)内，用于判断采集装置采集到的杂散电流是否超出预设阈值，若杂散电流超出预设阈值，则联动警示装置动作，对巡检人员进行预警；A controller (404), arranged in the detection box (4), is used for judging whether the stray current collected by the collecting device exceeds a preset threshold value, and if the stray current exceeds the preset threshold value, the linkage warning device acts, and the inspection personnel to warn; 警示装置，用于杂散电流超过阈值后对巡检人员起警示作用。The warning device is used to warn the inspection personnel when the stray current exceeds the threshold. 2.根据权利要求1所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述连接装置包括电缆压入口(202)、夹紧盘(203)、接地环(204)和连接柱(3)，防护底座(2)内设有电缆压入口(202)和夹紧盘(203)，所述电缆压入口(202)内壁设有导入至地下的接地环(204)，连接柱(3)设置于防护底座(2)内，所述连接柱(3)另一端连接至检测箱(4)内的采集器(303)。2. The power grid detection device resistant to stray current corrosion according to claim 1, characterized in that: the connection device comprises a cable pressure inlet (202), a clamping plate (203), a grounding ring (204) and The connecting column (3), the protective base (2) is provided with a cable pressing inlet (202) and a clamping disc (203), and the inner wall of the cable pressing inlet (202) is provided with a grounding ring (204) leading to the ground, connecting the The column (3) is arranged in the protective base (2), and the other end of the connecting column (3) is connected to the collector (303) in the detection box (4). 3.根据权利要求1所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述连接柱(3)与采集器(303)通过导通线槽(301)和线端(302)电连接，其中导通线槽(301)设于防护底座(2)内部，贯穿检测箱(4)底部连接至检测箱(4)的线端(302)，线端(302)与采集器(303)电连接。3. The power grid detection device resistant to stray current corrosion according to claim 1, characterized in that: the connecting column (3) and the collector (303) pass through the conducting wire slot (301) and the wire end ( 302) Electrical connection, wherein the conducting wire slot (301) is arranged inside the protective base (2), and is connected to the wire end (302) of the detection box (4) through the bottom of the detection box (4), and the wire end (302) is connected to the collecting The device (303) is electrically connected. 4.根据权利要求1所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述采集装置优选电荷传感器(401)，所述电荷传感器(401)与控制器(404)电平输入端电连接。4. A power grid detection device resistant to stray current corrosion according to claim 1, characterized in that: the collection device is preferably a charge sensor (401), and the charge sensor (401) is electrically connected to the controller (404). The flat input terminal is electrically connected. 5.根据权利要求1所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述检测箱(4)顶部设有显示屏(402)，所述显示屏(402)与检测器(5)电连接，所述显示屏(402)设于PMMA圆板(101)的正下方。5. The power grid detection device resistant to stray current corrosion according to claim 1, characterized in that: a display screen (402) is provided on the top of the detection box (4), and the display screen (402) is connected with the detection The device (5) is electrically connected, and the display screen (402) is arranged directly below the PMMA circular plate (101). 6.根据权利要求1所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述警示装置包括指示器(403)，所述指示器(403)通过螺旋接线柱(4032)固定安装于检测箱(4)一侧顶部。6. The power grid detection device resistant to stray current corrosion according to claim 1, characterized in that: the warning device comprises an indicator (403), and the indicator (403) passes through a screw terminal (4032) It is fixedly installed on the top of one side of the detection box (4). 7.根据权利要求6所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述指示器(403)顶部密封套接有透明防护罩(4031)。7. The power grid detection device resistant to stray current corrosion according to claim 6, characterized in that: the top of the indicator (403) is sealed and sleeved with a transparent protective cover (4031). 8.根据权利要求7所述的一种耐杂散电流腐蚀的电网检测设备，其特征在于：所述透明防护罩(4031)优选高透光型材料。8 . The power grid detection device resistant to stray current corrosion according to claim 7 , characterized in that: the transparent protective cover ( 4031 ) is preferably a material with high light transmission.
CN202210247392.6A 2022-03-14 2022-03-14 A power grid detection device resistant to stray current corrosion Active CN114624532B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202210247392.6A CN114624532B (en) 2022-03-14 2022-03-14 A power grid detection device resistant to stray current corrosion

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202210247392.6A CN114624532B (en) 2022-03-14 2022-03-14 A power grid detection device resistant to stray current corrosion

Publications (2)

Publication Number Publication Date
CN114624532A true CN114624532A (en) 2022-06-14
CN114624532B CN114624532B (en) 2024-06-18

Family

ID=81902460

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202210247392.6A Active CN114624532B (en) 2022-03-14 2022-03-14 A power grid detection device resistant to stray current corrosion

Country Status (1)

Country Link
CN (1) CN114624532B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115982914A (en) * 2023-02-16 2023-04-18 华东交通大学 Method and system for evaluating grounding grid corrosion based on elastic grid theory
CN119198763A (en) * 2024-11-29 2024-12-27 江西瑞尔特电气科技有限公司 Insulator contamination detection method and system based on multi-spectral fusion

Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1239785A (en) * 1984-03-14 1988-08-02 John R. Shambroom Capacitance height gage applied in reticle position detection system for electron beam lithography apparatus
JPH05133995A (en) * 1991-11-13 1993-05-28 Chubu Electric Power Co Inc Insulation deterioration diagnosis method for power cables
US20050212525A1 (en) * 2003-11-21 2005-09-29 Rogers David M Advanced 24/7 differential oscilloscope with remote access and security features for detection of neutral to earth voltage
CN201555886U (en) * 2009-12-15 2010-08-18 贵州大学 Buried gas pipeline stray current neuro-fuzzy control energy-saving drainage equipment
CN202171732U (en) * 2011-07-21 2012-03-21 深圳市华力特电气股份有限公司 Centralized subway stray current supervising device
CN102508018A (en) * 2011-11-10 2012-06-20 上海电机学院 Stray current monitoring and protecting device and method
CN104852349A (en) * 2015-04-20 2015-08-19 南方电网科学研究院有限责任公司 An overpressure protection device for natural gas pipeline system
CN205003207U (en) * 2015-08-24 2016-01-27 南京大全自动化科技有限公司 A subway stray current collector
CN105572558A (en) * 2015-12-09 2016-05-11 浙江大学 Power diode module working junction temperature on-line detection system and detection method
CN106026037A (en) * 2016-02-02 2016-10-12 江苏省电力公司南京供电公司 Cable surface stray current protection device and method based on active reduction of electric potential
CN205800830U (en) * 2016-05-23 2016-12-14 南京大全自动化科技有限公司 A kind of subway stream discharging system
JP2017122666A (en) * 2016-01-08 2017-07-13 東日本旅客鉄道株式会社 Lightning arrester leakage current detection method, lightning arrester leakage current detection device, and lightning arrester leakage current monitor device
CN109211761A (en) * 2018-09-12 2019-01-15 西安建筑科技大学 The experimental rig and method that simulation metro stray current influences concrete durability
CN111254443A (en) * 2020-03-18 2020-06-09 中国船舶重工集团公司第七二五研究所 Seawater pipeline stray current detection and control device and method
CN111487184A (en) * 2020-04-11 2020-08-04 华东交通大学 Experimental platform for simulating stray current leakage and corrosion of subway train

Patent Citations (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CA1239785A (en) * 1984-03-14 1988-08-02 John R. Shambroom Capacitance height gage applied in reticle position detection system for electron beam lithography apparatus
JPH05133995A (en) * 1991-11-13 1993-05-28 Chubu Electric Power Co Inc Insulation deterioration diagnosis method for power cables
US20050212525A1 (en) * 2003-11-21 2005-09-29 Rogers David M Advanced 24/7 differential oscilloscope with remote access and security features for detection of neutral to earth voltage
CN201555886U (en) * 2009-12-15 2010-08-18 贵州大学 Buried gas pipeline stray current neuro-fuzzy control energy-saving drainage equipment
CN202171732U (en) * 2011-07-21 2012-03-21 深圳市华力特电气股份有限公司 Centralized subway stray current supervising device
CN102508018A (en) * 2011-11-10 2012-06-20 上海电机学院 Stray current monitoring and protecting device and method
CN104852349A (en) * 2015-04-20 2015-08-19 南方电网科学研究院有限责任公司 An overpressure protection device for natural gas pipeline system
CN205003207U (en) * 2015-08-24 2016-01-27 南京大全自动化科技有限公司 A subway stray current collector
CN105572558A (en) * 2015-12-09 2016-05-11 浙江大学 Power diode module working junction temperature on-line detection system and detection method
JP2017122666A (en) * 2016-01-08 2017-07-13 東日本旅客鉄道株式会社 Lightning arrester leakage current detection method, lightning arrester leakage current detection device, and lightning arrester leakage current monitor device
CN106026037A (en) * 2016-02-02 2016-10-12 江苏省电力公司南京供电公司 Cable surface stray current protection device and method based on active reduction of electric potential
CN205800830U (en) * 2016-05-23 2016-12-14 南京大全自动化科技有限公司 A kind of subway stream discharging system
CN109211761A (en) * 2018-09-12 2019-01-15 西安建筑科技大学 The experimental rig and method that simulation metro stray current influences concrete durability
CN111254443A (en) * 2020-03-18 2020-06-09 中国船舶重工集团公司第七二五研究所 Seawater pipeline stray current detection and control device and method
CN111487184A (en) * 2020-04-11 2020-08-04 华东交通大学 Experimental platform for simulating stray current leakage and corrosion of subway train

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
A. DEMETRIOU 等: "Stray Current DC Corrosion Blind Spots Inherent to Large PV Systems Fault Detection Mechanisms: Elaboration of a Novel Concept", 《IEEE TRANSACTIONS ON POWER DELIVERY。 *
杨立新 等: "轨道交通杂散电流腐蚀的监测及防护研究", 《铁道工程学报》 *

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN115982914A (en) * 2023-02-16 2023-04-18 华东交通大学 Method and system for evaluating grounding grid corrosion based on elastic grid theory
CN119198763A (en) * 2024-11-29 2024-12-27 江西瑞尔特电气科技有限公司 Insulator contamination detection method and system based on multi-spectral fusion

Also Published As

Publication number Publication date
CN114624532B (en) 2024-06-18

Similar Documents

Publication Publication Date Title
CN206772345U (en) A kind of cable tunnel inner cable running environment data collection station
CN114624532A (en) Stray current corrosion resistant power grid detection device
CN115166405B (en) Transformer operating status online monitoring device and monitoring method
CN107482565A (en) A cable well cover for intelligent monitoring
CN101359820A (en) Practical electric leakage protector detecting dangerous leakage voltage value
CN207069533U (en) A kind of cable channel cover plate device with water detection function
CN202267542U (en) Temperature monitoring alarm of high voltage electric apparatus
CN211504017U (en) Monitoring system for deep displacement of garbage pile
CN210270555U (en) Wisdom street facility management system
CN205827581U (en) The tamper-proof prior-warning device of power cable passage
CN217542902U (en) Damaged detection device of well lid
CN213147921U (en) NB-IoT intelligent well lid monitoring equipment
CN104505743A (en) Electrification door open alarming and recording system for comprehensive distribution cabinet
Fu Manhole cover intelligent detection and management system
CN110375933A (en) A kind of oil storage tank leak detection apparatus
CN214098600U (en) Electric power communication optical cable prevents outer broken alarm device
CN207781283U (en) A kind of electrified track traffic traction power supply system Intelligent insulating
CN202885903U (en) Alarming device of cable clamping layer inflow
US9678117B2 (en) Integral safety display for a test switch
CN201392380Y (en) Multifunctional error detecting device
CN212254258U (en) Transformer oil level indicating and comprehensive alarming device
CN101033686A (en) Device for monitoring start-stop of pumping unit of well and collecting current of up-down stroke current and stroke
CN217546158U (en) An anti-damage device for a transmission line
CN205643658U (en) Ripple measuring device
CN215953877U (en) Integrated automatic monitoring station with wire breakage alarm function

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
TA01 Transfer of patent application right

Effective date of registration: 20240527

Address after: 434000 Taiyue Road, Shashi District, Jingzhou City, Hubei Province

Applicant after: Hubei Electric Power Company Jingzhou Power Supply Company

Country or region after: China

Applicant after: Shishou Power Supply Company of State Grid Hubei Electric Power Co.,Ltd.

Applicant after: JINGZHOU JINGLI ENGINEERING DESIGN CONSULTING CO.,LTD.

Address before: 330006 No. 808, Shuanggang East Street, Nanchang Economic and Technological Development Zone, Jiangxi Province

Applicant before: East China Jiaotong University

Country or region before: China

Applicant before: Jiangxi ruierte Electric Technology Co.,Ltd.

TA01 Transfer of patent application right
GR01 Patent grant
GR01 Patent grant