CN113484698A - Partial discharge detection system based on environmental data feedback - Google Patents
Partial discharge detection system based on environmental data feedback Download PDFInfo
- Publication number
- CN113484698A CN113484698A CN202110559060.7A CN202110559060A CN113484698A CN 113484698 A CN113484698 A CN 113484698A CN 202110559060 A CN202110559060 A CN 202110559060A CN 113484698 A CN113484698 A CN 113484698A
- Authority
- CN
- China
- Prior art keywords
- data
- partial discharge
- module
- discharge detection
- terminal
- 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.)
- Pending
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
- G01R31/12—Testing dielectric strength or breakdown voltage ; Testing or monitoring effectiveness or level of insulation, e.g. of a cable or of an apparatus, for example using partial discharge measurements; Electrostatic testing
-
- G—PHYSICS
- G08—SIGNALLING
- G08C—TRANSMISSION SYSTEMS FOR MEASURED VALUES, CONTROL OR SIMILAR SIGNALS
- G08C17/00—Arrangements for transmitting signals characterised by the use of a wireless electrical link
- G08C17/02—Arrangements for transmitting signals characterised by the use of a wireless electrical link using a radio link
Abstract
The invention discloses an environmental data feedback-based partial discharge detection system, which comprises a data acquisition front end, a partial discharge detection terminal and a service data processing platform which are sequentially connected, wherein: the data acquisition front end is used for acquiring field operation data of equipment and various information obtained by detection; the partial discharge detection terminal is used for summarizing, processing and transmitting the acquired data; and the service data processing platform is used for judging the accuracy of the data and realizing data storage and data display. According to the technical scheme, automatic acquisition and data communication are achieved through the partial discharge detection terminal in the partial discharge detection of the power equipment, accurate temperature and humidity data and partial discharge detection data can be acquired and sent to the service platform, data support and information reference are provided for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case filing, and upgrading optimization of a power system is achieved.
Description
Technical Field
The invention relates to the technical field of partial discharge detection, in particular to a partial discharge detection system based on environmental data feedback.
Background
The method is characterized in that the partial discharge condition of the power system is monitored on line by utilizing a partial discharge monitoring technology so as to maintain in time when an insulation fault occurs at a certain monitoring point, and the method is an important means for ensuring the reliable operation of the power system. With the complexity of the power system, the requirement for the accuracy of the measured data is higher and higher to ensure the smooth operation of the power system. Temperature and humidity are important factors influencing the accuracy of the partial discharge monitoring data.
Data display exists, and in the process of carrying out partial discharge live detection on a power distribution room and a ring main unit in the current power operation site, an environment hygrothermograph is often required to be carried to record the detection environment of the site, and a detection report or a recording system is compiled after manual recording. The partial discharge change of environment temperature and humidity data corresponding to analysis is an important parameter, recording and entering are needed in each detection, no detection device capable of partial discharge and synchronous temperature and humidity acquisition exists in the current market, in order to solve the field detection efficiency and reduce the operation process, the partial discharge detection terminal is researched to automatically acquire and store temperature and humidity data, and the temperature and humidity data are automatically supplied to a service platform.
Chinese patent document CN201955439U discloses an "on-line partial discharge detection system". The device comprises a current sensor for detecting the medium and high voltage cables; the output end of the current sensor is connected with the input ends of the amplifying module and the phase detection module respectively, the output ends of the amplifying module and the phase detection module are connected with the input end of the data acquisition unit respectively, and the output end of the data acquisition unit is connected with the computer terminal. The technical scheme only realizes the measurement of the partial discharge, has single function, does not consider the influence of the environmental condition on the partial discharge, and has errors.
Disclosure of Invention
The invention mainly solves the technical problems that the prior technical scheme has single function and does not consider the influence of environmental conditions on partial discharge, and provides a partial discharge detection system based on environmental data feedback.
The technical problem of the invention is mainly solved by the following technical scheme: the invention comprises a data acquisition front end, a partial discharge detection terminal and a service data processing platform which are connected in sequence, wherein:
the data acquisition front end is used for acquiring field operation data of equipment and various information obtained by detection;
the partial discharge detection terminal is used for summarizing, processing and transmitting the acquired data;
and the service data processing platform is used for judging the accuracy of the data and realizing data storage and data display.
Preferably, the data acquisition front end comprises a transient ground voltage sensor, an ultrasonic sensor, an ultrahigh frequency sensor and a temperature and humidity sensor which are respectively connected with the partial discharge detection terminal. The data acquisition front end comprises a plurality of types of detection sensors, including transient earth voltage, ultrasonic wave, ultrahigh frequency and temperature and humidity sensors for local discharge detection, so as to acquire a plurality of information obtained by field operation and detection of equipment, including ultrahigh frequency signals and ultrasonic wave signals possibly released when the equipment is abnormal and environment temperature and humidity data corresponding to the abnormal conditions.
Preferably, the temperature and humidity sensor comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are connected with the partial discharge detection terminal through a filtering amplification circuit and a microprocessor in sequence. Temperature and humidity data in the environment are collected through the thermistor and the temperature sensitive resistor respectively, and accurate temperature and humidity are obtained through combination of the filtering amplification circuit and the microprocessor.
Preferably, the partial discharge detection terminal comprises a terminal power supply module, and a data acquisition module, a data conversion module, a terminal display module and a terminal communication module which are respectively connected with the terminal power supply module. The data acquisition module is used for acquiring detection data of the temperature and humidity sensor and the partial discharge detection sensor and transmitting the data to the data conversion module; the data conversion module is used for realizing AD conversion and signal conditioning of data of each channel and displaying the data on an LED screen of the terminal display module.
Preferably, the input end of the data acquisition module is respectively connected with the microprocessors of the transient earth voltage sensor, the ultrasonic sensor, the ultrahigh frequency sensor and the temperature and humidity sensor, and the output end of the data acquisition module is connected with the AD conversion module and the signal conditioning module in the data conversion module.
Preferably, the terminal communication module comprises a wired communication module adopting carrier communication and a Zi communication module adopting carrier communicationgAnd a wireless communication module for Bee communication. The wired communication module realizes information transmission only through a wire by using carrier communication, so that the realization cost is low; wireless communication module employing ZigBee communication compares other wireless communication modes, has low-power consumption, low cost, the long and big advantage of network capacity of stand-by time, and in the face of environmental configuration is more complicated, only relies on the electric wire transmission to need when the transformation degree is high, can reduce and reform transform the cost.
Preferably, the wired communication module comprises a zero-crossing detection circuit, a signal sending circuit, a signal coupling circuit, a signal receiving and filtering circuit and a zero-crossing synchronization circuit which are connected in sequence, wherein an input control end of the signal coupling circuit is connected with an electric wire, and an input end of the zero-crossing detection circuit and an output end of the zero-crossing synchronization circuit are connected with the carrier signal. The carrier wave judges sampling time through a zero-crossing detection circuit, and signals to be transmitted are sent through a signal sending circuit and are coupled to an electric wire through a signal coupling circuit for transmission; the information transmitted on the wire is also transmitted to the signal receiving filter circuit and the zero-crossing synchronization circuit through the signal coupling circuit, so that the information is transmitted in two directions, and the carrier sampling has the characteristic of stability.
Preferably, the wireless communication module comprises ZigBee communication unit and respectively with ZigA power supply filtering unit, a communication interface unit and an antenna which are connected with the Bee communication unit. The Zigbee communication unit is based on a Zigbee protocol standard and is used for receiving and processing the wireless data packets received by the antenna unit or outputting the wireless data packets to be sent to the antenna unit after sending and processing the wireless data packets, and the communication interface unit is used for being connected with the data processing module to receive and transmit data.
Preferably, the service data processing platform comprises a platform power supply module, and a platform communication module, a data processing module, a data storage module and a platform display module which are respectively connected with the platform power supply module, wherein the platform communication module is in wireless connection with the terminal communication module. The collected temperature and humidity data and the local release data are uploaded to a service data processing platform according to a certain rule, the data processing module compares the collected data with historical data stored in a data storage module, whether the collected data are abnormal or not is judged, if the collected data are abnormal, an alarm prompt is sent, and if the collected data are not abnormal, the collected data are stored in the data storage module.
Preferably, the service data processing platform is respectively connected with the monitoring management cloud platform and the access terminal, and the monitoring management cloud platform is connected with the access terminal. The monitoring management cloud platform realizes cloud storage of data, and the access terminal can realize monitoring of the data by connecting the service data processing platform or accessing the monitoring management cloud platform.
The invention has the beneficial effects that: in the partial discharge detection of the power equipment, automatic acquisition and data communication are realized through the partial discharge detection terminal, accurate temperature and humidity data and partial discharge detection data can be acquired and sent to a service platform, data support and information reference are provided for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case filing, and upgrading optimization of a power system is realized.
Drawings
Fig. 1 is a schematic circuit diagram of the present invention.
In the figure, 1 data acquisition front end, 1.1 transient state ground voltage sensor, 1.2 ultrasonic sensor, 1.3 ultrahigh frequency sensor, 1.4 temperature and humidity sensor, 2 partial discharge detection terminal, 2.1 terminal power module, 2.2 data acquisition module, 2.3 data conversion module, 2.4 terminal display module, 2.5 terminal communication module, 3 confession clothes data processing platform, 3.1 platform power module, 3.2 platform communication module, 3.3 data processing module, 3.4 data storage module, 3.5 platform display module.
Detailed Description
The technical scheme of the invention is further specifically described by the following embodiments and the accompanying drawings.
Example (b): the partial discharge detection system based on environmental data feedback of this embodiment, as shown in fig. 1, includes a data acquisition front end (1), a partial discharge detection terminal (2) and a service data processing platform (3) that are connected in sequence, wherein:
the data acquisition front end (1) is used for acquiring field operation data of equipment and detecting various information. The data acquisition front end (1) comprises a transient earth voltage sensor (1.1), an ultrasonic sensor (1.2), an ultrahigh frequency sensor (1.3) and a temperature and humidity sensor (1.4) which are respectively connected with the partial discharge detection terminal (2). The data acquisition front end comprises a plurality of types of detection sensors, including transient earth voltage, ultrasonic wave, ultrahigh frequency and temperature and humidity sensors for local discharge detection, so as to acquire a plurality of information obtained by field operation and detection of equipment, including ultrahigh frequency signals and ultrasonic wave signals possibly released when the equipment is abnormal and environment temperature and humidity data corresponding to the abnormal conditions. The temperature and humidity sensor (1.4) comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are sequentially connected with the partial discharge detection terminal (2) through a filtering amplification circuit and a microprocessor. Temperature and humidity data in the environment are collected through the thermistor and the temperature sensitive resistor respectively, and accurate temperature and humidity are obtained through combination of the filtering amplification circuit and the microprocessor.
And the partial discharge detection terminal (2) is used for summarizing, processing and transmitting the acquired data. The partial discharge detection terminal (2) comprises a terminal power supply module (2.1), and a data acquisition module (2.2), a data conversion module (2.3), a terminal display module (2.4) and a terminal communication module (2.5) which are respectively connected with the terminal power supply module (2.1).
The input end of the data acquisition module (2.2) is respectively connected with the microprocessors of the transient earth voltage sensor (1.1), the ultrasonic sensor (1.2), the ultrahigh frequency sensor (1.3) and the temperature and humidity sensor (1.4), and the output end of the data acquisition module (2.2) is connected with the AD conversion module and the signal conditioning module in the data conversion module (2.3). The data acquisition module 2.2 is used for acquiring detection data of the temperature and humidity sensor and the partial discharge detection sensor and transmitting the data to the data conversion module; the data conversion module is used for realizing AD conversion and signal conditioning of data of each channel and displaying the data on an LED screen of the terminal display module.
Terminal deviceThe communication module (2.5) comprises a wired communication module (3.1) adopting carrier communication and a module adopting ZigAnd a wireless communication module for Bee communication. The wired communication module realizes information transmission only through a wire by using carrier communication, so that the realization cost is low; wireless communication module employing ZigBee communication compares other wireless communication modes, has low-power consumption, low cost, the long and big advantage of network capacity of stand-by time, and in the face of environmental configuration is more complicated, only relies on the electric wire transmission to need when the transformation degree is high, can reduce and reform transform the cost.
The wired communication module comprises a zero-crossing detection circuit, a signal sending circuit, a signal coupling circuit, a signal receiving and filtering circuit and a zero-crossing synchronization circuit which are sequentially connected, wherein the input control end of the signal coupling circuit is connected with an electric wire, and the input end of the zero-crossing detection circuit and the output end of the zero-crossing synchronization circuit are connected with a carrier signal. The carrier wave judges sampling time through a zero-crossing detection circuit, and signals to be transmitted are sent through a signal sending circuit and are coupled to an electric wire through a signal coupling circuit for transmission; the information transmitted on the wire is also transmitted to the signal receiving filter circuit and the zero-crossing synchronization circuit through the signal coupling circuit, so that the information is transmitted in two directions, and the carrier sampling has the characteristic of stability. The wireless communication module comprises ZigBee communication unit and respectively with ZigA power supply filtering unit, a communication interface unit and an antenna which are connected with the Bee communication unit. The Zigbee communication unit is based on a Zigbee protocol standard and is used for receiving and processing the wireless data packets received by the antenna unit or outputting the wireless data packets to be sent to the antenna unit after sending and processing the wireless data packets, and the communication interface unit is used for being connected with the data processing module to receive and transmit data. The wireless communication mode also comprises a Wifi mode and a LoRa mode.
And the service data processing platform (3) is used for judging the accuracy of data and realizing data storage and data display. The service data processing platform (3) comprises a platform power supply module (3.1), a platform communication module (3.2), a data processing module (3.3), a data storage module (3.4) and a platform display module (3.5), wherein the platform communication module (3.2) is connected with the platform power supply module (3.1) respectively, and the platform communication module (3.2) is in wireless connection with the terminal communication module (2.5). The collected temperature and humidity data and the local release data are uploaded to a service data processing platform according to a certain rule, the data processing module compares the collected data with historical data stored in a data storage module, whether the collected data are abnormal or not is judged, if the collected data are abnormal, an alarm prompt is sent, and if the collected data are not abnormal, the collected data are stored in the data storage module.
The service data processing platform (3) is respectively connected with the monitoring management cloud platform and the access terminal, and the monitoring management cloud platform is connected with the access terminal. The monitoring management cloud platform realizes cloud storage of data, and the access terminal can realize monitoring of the data by connecting the service data processing platform or accessing the monitoring management cloud platform.
When the system works, firstly, a plurality of types of data acquisition front ends comprise transient earth voltage, ultrasonic waves, ultrahigh frequencies and temperature and humidity sensors for local discharge detection, and a plurality of information obtained by field operation and detection of equipment, including ultrahigh frequency signals and ultrasonic signals possibly released when the equipment is abnormal and environment temperature and humidity data corresponding to the abnormal conditions, are acquired, and the data are comprehensively detected by the acquisition front ends. And the data acquisition front end uploads the sensor monitoring data to the partial discharge detection terminal for display. Then the partial discharge detection terminal is communicated through a wired communication module of carrier wave or adopts ZigThe wireless communication module of Bee, Wifi and loRa communication will upload the humiture data and the office of gathering and will supply to serve data processing platform according to certain rule. The data processing module compares the acquired data with historical data stored in the data storage module, judges the accuracy of the data, sends out an alarm prompt if the data are abnormal, and stores the data in the data storage module if the data are not abnormal. The method provides data support and information reference for field equipment detection environment, equipment partial discharge fault diagnosis, defect elimination and case archiving, and realizes upgrading optimization of the power system. And then the service data processing platform synchronizes the data to the monitoring management cloud platform to realize cloud storage of the data, and the access terminal can realize monitoring of the data by connecting the service data processing platform or accessing the monitoring management cloud platform.
The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications or additions may be made to the described embodiments or alternatives may be employed by those skilled in the art without departing from the spirit or ambit of the invention as defined in the appended claims.
Although the terms data acquisition front-end, partial discharge detection terminal and service data processing platform are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed as being without limitation to any additional limitations that may be imposed by the spirit of the present invention.
Claims (10)
1. The utility model provides a detecting system is put in office based on environmental data feedback which characterized in that, puts detecting terminal (2) and supplies to serve data processing platform (3) including consecutive data acquisition front end (1), office, wherein:
the data acquisition front end (1) is used for acquiring field operation data of equipment and various information obtained by detection;
the partial discharge detection terminal (2) is used for summarizing, processing and transmitting the acquired data;
and the service data processing platform (3) is used for judging the accuracy of data and realizing data storage and data display.
2. The partial discharge detection system based on environmental data feedback according to claim 1, wherein the data acquisition front end (1) comprises a transient ground voltage sensor (1.1), an ultrasonic sensor (1.2), an ultrahigh frequency sensor (1.3) and a temperature and humidity sensor (1.4) respectively connected to the partial discharge detection terminal (2).
3. The partial discharge detection system based on environmental data feedback according to claim 2, wherein the temperature and humidity sensor (1.4) comprises a thermistor and a temperature sensitive resistor, and the thermistor and the temperature sensitive resistor are connected with the partial discharge detection terminal (2) through a filtering and amplifying circuit and a microprocessor in sequence.
4. The partial discharge detection system based on environmental data feedback according to claim 1, wherein the partial discharge detection terminal (2) comprises a terminal power module (2.1), and a data acquisition module (2.2), a data conversion module (2.3), a terminal display module (2.4) and a terminal communication module (2.5) respectively connected to the terminal power module (2.1).
5. The partial discharge detection system based on environmental data feedback according to claim 4, wherein an input end of the data acquisition module (2.2) is respectively connected to the microprocessors of the transient voltage sensor (1.1), the ultrasonic sensor (1.2), the ultrahigh frequency sensor (1.3) and the temperature and humidity sensor (1.4), and an output end of the data acquisition module (2.2) is connected to the AD conversion module and the signal conditioning module in the data conversion module (2.3).
6. The partial discharge detection system based on environmental data feedback according to claim 4, wherein the terminal communication module (2.5) comprises a wired communication module (3.1) adopting carrier communication and a wireless communication module adopting ZigBee communication.
7. The partial discharge detection system based on environmental data feedback according to claim 6, wherein the wired communication module comprises a zero-crossing detection circuit, a signal transmission circuit, a signal coupling circuit, a signal receiving filter circuit and a zero-crossing synchronization circuit, which are connected in sequence, an input control end of the signal coupling circuit is connected with a wire, and an input end of the zero-crossing detection circuit and an output end of the zero-crossing synchronization circuit are connected with a carrier signal.
8. The partial discharge detection system based on environmental data feedback of claim 6, wherein the wireless communication module comprises a ZigBee communication unit, and a power filtering unit, a communication interface unit and an antenna which are respectively connected with the ZigBee communication unit.
9. The partial discharge detection system based on environmental data feedback according to claim 1, wherein the service data processing platform (3) comprises a platform power supply module (3.1), and a platform communication module (3.2), a data processing module (3.3), a data storage module (3.4) and a platform display module (3.5) respectively connected to the platform power supply module (3.1), wherein the platform communication module (3.2) is wirelessly connected to the terminal communication module (2.5).
10. The partial discharge detection system based on environmental data feedback according to claim 1, wherein the service data processing platform (3) is connected to a monitoring management cloud platform and an access terminal, respectively, and the monitoring management cloud platform is connected to the access terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559060.7A CN113484698A (en) | 2021-05-21 | 2021-05-21 | Partial discharge detection system based on environmental data feedback |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110559060.7A CN113484698A (en) | 2021-05-21 | 2021-05-21 | Partial discharge detection system based on environmental data feedback |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN113484698A true CN113484698A (en) | 2021-10-08 |
Family
ID=77932992
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110559060.7A Pending CN113484698A (en) | 2021-05-21 | 2021-05-21 | Partial discharge detection system based on environmental data feedback |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113484698A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884842A (en) * | 2021-11-15 | 2022-01-04 | 国网湖南省电力有限公司 | Partial discharge monitoring system suitable for ring net cage |
| CN114071256A (en) * | 2021-11-15 | 2022-02-18 | 国网湖南省电力有限公司 | Partial discharge monitoring device suitable for ring net cage |
| CN114325254A (en) * | 2021-11-19 | 2022-04-12 | 南京征途信息技术有限公司 | Power transmission and transformation ultrasonic partial discharge sensor and method thereof |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203301475U (en) * | 2013-02-04 | 2013-11-20 | 深圳市航天泰瑞捷电子有限公司 | Carrier communication unit |
| CN205581259U (en) * | 2016-04-07 | 2016-09-14 | 苏州华天国科电力科技有限公司 | GIS local discharge on -line monitoring system with little meteorological monitoring |
| CN209373039U (en) * | 2018-12-29 | 2019-09-10 | 国网江苏省电力有限公司检修分公司 | A kind of live testing apparatus for local discharge based on RFID |
| CN111308239A (en) * | 2020-02-19 | 2020-06-19 | 上海迈内能源科技有限公司 | Wireless monitoring system for GIS state online monitoring |
| CN211014518U (en) * | 2019-08-19 | 2020-07-14 | 广东电网有限责任公司 | Partial discharge detection system |
| CN111679166A (en) * | 2020-07-23 | 2020-09-18 | 国家电网有限公司 | Switch cabinet partial discharge fault multi-source information fusion detection early warning system and method based on wireless transmission technology |
| CN111707913A (en) * | 2020-06-19 | 2020-09-25 | 国网河南省电力公司鹤壁供电公司 | Partial discharge detection device of power switch cabinet |
| CN212989540U (en) * | 2020-06-15 | 2021-04-16 | 南水北调中线信息科技有限公司 | Power cable partial discharge comprehensive online monitoring system based on multiple sensors |
-
2021
- 2021-05-21 CN CN202110559060.7A patent/CN113484698A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203301475U (en) * | 2013-02-04 | 2013-11-20 | 深圳市航天泰瑞捷电子有限公司 | Carrier communication unit |
| CN205581259U (en) * | 2016-04-07 | 2016-09-14 | 苏州华天国科电力科技有限公司 | GIS local discharge on -line monitoring system with little meteorological monitoring |
| CN209373039U (en) * | 2018-12-29 | 2019-09-10 | 国网江苏省电力有限公司检修分公司 | A kind of live testing apparatus for local discharge based on RFID |
| CN211014518U (en) * | 2019-08-19 | 2020-07-14 | 广东电网有限责任公司 | Partial discharge detection system |
| CN111308239A (en) * | 2020-02-19 | 2020-06-19 | 上海迈内能源科技有限公司 | Wireless monitoring system for GIS state online monitoring |
| CN212989540U (en) * | 2020-06-15 | 2021-04-16 | 南水北调中线信息科技有限公司 | Power cable partial discharge comprehensive online monitoring system based on multiple sensors |
| CN111707913A (en) * | 2020-06-19 | 2020-09-25 | 国网河南省电力公司鹤壁供电公司 | Partial discharge detection device of power switch cabinet |
| CN111679166A (en) * | 2020-07-23 | 2020-09-18 | 国家电网有限公司 | Switch cabinet partial discharge fault multi-source information fusion detection early warning system and method based on wireless transmission technology |
Non-Patent Citations (1)
| Title |
|---|
| 王坤涵: "环网柜局部放电在线监测系统研制", 《中国优秀硕士学位论文全文数据库工程科技Ⅱ辑》, no. 2, pages 19 - 28 * |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113884842A (en) * | 2021-11-15 | 2022-01-04 | 国网湖南省电力有限公司 | Partial discharge monitoring system suitable for ring net cage |
| CN114071256A (en) * | 2021-11-15 | 2022-02-18 | 国网湖南省电力有限公司 | Partial discharge monitoring device suitable for ring net cage |
| CN114325254A (en) * | 2021-11-19 | 2022-04-12 | 南京征途信息技术有限公司 | Power transmission and transformation ultrasonic partial discharge sensor and method thereof |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN113484698A (en) | Partial discharge detection system based on environmental data feedback | |
| KR101255843B1 (en) | System for management of elctrical power energy | |
| CN104301210B (en) | Analysis gateway for measuring device | |
| US20060083260A1 (en) | System and method for providing communication between intelligent electronic devices via an open channel | |
| US20060036795A1 (en) | Method and system for monitoring and transmitting utility status via universal communications interface | |
| US20150276825A1 (en) | Method and Apparatus for a Cloud-Based Power Quality Monitor | |
| CN110111552A (en) | A kind of bridge multipoint multi-channel strain wireless monitor system based on ZigBee | |
| CN207488428U (en) | A kind of partial discharge monitoring device | |
| CN202956861U (en) | Comprehensive pre-warning device for field deformation in tunnel and underground engineering | |
| CN103152274B (en) | Efficiency and secure data wireless networking route device, system and method | |
| CN211402560U (en) | Thing allies oneself with type low-voltage apparatus monitor terminal | |
| CN101819230A (en) | Method and device for monitoring power consumption of single board | |
| JP2009276354A (en) | Current-measuring device and current measurement method | |
| CN105223463A (en) | The monitoring system of ring main unit and method | |
| CN210270099U (en) | Wireless transmission type storage battery monitoring device | |
| CN204028339U (en) | A kind of power information acquisition terminal multifunctional detecting device | |
| CN204679104U (en) | Collecting and distributing type multiple physical field engineering safety dynamic monitoring early warning system | |
| CN202533100U (en) | Wireless humiture monitoring system | |
| CN202485809U (en) | Temperature data collection device | |
| CN201335764Y (en) | Water-power performance parameter on-line detecting system of water pump and/or water supply pipeline | |
| CN211928051U (en) | Low-voltage distribution network line loss diagnosis system | |
| CN215526008U (en) | Partial discharge detection terminal capable of automatically collecting environmental data | |
| CN209784791U (en) | Sensing data acquisition and processing system | |
| CN204679103U (en) | Detachable project security monitoring data acquisition unit | |
| CN107332348B (en) | Phase detection system |
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 |