CN206618828U - A kind of discharge signal monitoring system of switch cubicle - Google Patents
A kind of discharge signal monitoring system of switch cubicle Download PDFInfo
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Abstract
本实用新型涉及一种开关柜的放电信号监测系统，包括集控单元、监控主机和安装支架，集控单元上连接有电压传感器、超声波传感器、温湿度传感器、噪声传感器，监控主机与集控单元相连，监控主机上连接有远程交互终端，安装支架与被监测的开关柜可拆卸连接；本实用新型的优点：通过集控单元实现电压传感器、超声波传感器、温湿度传感器和噪声传感器生成信号的连续实时采集，并通过监控组件接收集控单元上传的数据，能够对开关柜的局放信号进行初步定位和放电类型判断，并在短期内对局放信号进行在线监测，及时反馈信号变化，预防开关柜中的局放缺陷进一步加重所可能导致的设备突发性故障，保证开关柜和低压环网柜的安全运行，有效提高供电可靠性。
The utility model relates to a discharge signal monitoring system of a switchgear, comprising a centralized control unit, a monitoring host and a mounting bracket, the centralized control unit is connected with a voltage sensor, an ultrasonic sensor, a temperature and humidity sensor, a noise sensor, the monitoring host and the centralized control unit The remote interactive terminal is connected to the monitoring host, and the installation bracket is detachably connected to the monitored switchgear; the utility model has the advantages of realizing the continuous signal generation of the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor through the centralized control unit. Real-time collection, and receiving the data uploaded by the centralized control unit through the monitoring component, can carry out preliminary positioning and discharge type judgment of the partial discharge signal of the switchgear, and conduct online monitoring of the partial discharge signal in a short period of time, timely feedback signal changes, and prevent switchgear The further aggravation of partial discharge defects in the cabinet may lead to sudden failures of equipment, ensuring the safe operation of switch cabinets and low-voltage ring network cabinets, and effectively improving the reliability of power supply.
Description
技术领域technical field
本实用新型涉及一种开关柜的放电信号监测系统。The utility model relates to a discharge signal monitoring system of a switch cabinet.
背景技术Background technique
开关柜是一种电气设备，主要作用是在电力系统进行发电、输电、配电和电能转换的过程中，进行开合、控制和保护用电设备，目前，开关柜局放信号异常报告，主要由内部绝缘件受潮、老化等问题引起，严重影响到开关柜的安全可靠运行，现有检修人员不能实时的获取开关柜的相关信息，需要通过检修人员人工进行主动查看及故障原因的分析，由于检修人员的水平不一，导致故障的误诊和故障不及时被发现，可能引起局放缺陷突然扩大导致的开关柜设备状态恶化，不利于电网安全的运行。The switchgear is a kind of electrical equipment. Its main function is to open and close, control and protect the electrical equipment during the process of power generation, transmission, distribution and power conversion in the power system. At present, the abnormal report of the partial discharge signal of the switchgear mainly It is caused by problems such as damp and aging of the internal insulation parts, which seriously affect the safe and reliable operation of the switchgear. The existing maintenance personnel cannot obtain relevant information of the switchgear in real time, and the maintenance personnel need to manually actively check and analyze the cause of the failure. Due to The level of maintenance personnel is different, leading to misdiagnosis of faults and failure to be discovered in time, which may cause the sudden expansion of partial discharge defects and the deterioration of the state of switchgear equipment, which is not conducive to the safe operation of the power grid.
实用新型内容Utility model content
本实用新型要解决的技术问题就是提供一种开关柜的放电信号监测系统，解决现有的检修人员不能及时的获取开关柜内放电信号异常的技术问题。The technical problem to be solved by the utility model is to provide a discharge signal monitoring system of the switch cabinet, which solves the technical problem that the existing maintenance personnel cannot obtain the abnormal discharge signal in the switch cabinet in time.
为了解决上述技术问题，本实用新型是通过以下技术方案实现的：一种开关柜的放电信号监测系统，包括集控单元和监控主机，集控单元上连接有分别用于接收开关柜中局部放电源在开关柜柜壁产生的暂态对地电压信号的电压传感器，用于接收局部放电源在空间产生的超声波信号的超声波传感器，用于监测开关柜所处环境的温度和湿度的温湿度传感器，用于监测开关柜的环境噪声的噪声传感器，监控主机与集控单元相连用于接收集控单元上传的数据，监控主机上连接有远程交互终端，集控单元上还连接有供电组件，所述放电信号监测系统还包括用于固定电压传感器、超声波传感器、温湿度传感器和噪声传感器的安装支架，安装支架与被监测的开关柜可拆卸连接。In order to solve the above-mentioned technical problems, the utility model is realized through the following technical solutions: a discharge signal monitoring system of a switchgear, including a centralized control unit and a monitoring host, and the centralized control unit is connected with The voltage sensor for the transient ground voltage signal generated by the power supply on the wall of the switch cabinet, the ultrasonic sensor for receiving the ultrasonic signal generated by the partial discharge source in the space, and the temperature and humidity sensor for monitoring the temperature and humidity of the environment where the switch cabinet is located , a noise sensor used to monitor the environmental noise of the switchgear. The monitoring host is connected to the centralized control unit to receive the data uploaded by the centralized control unit. The monitoring host is connected to a remote interactive terminal, and the centralized control unit is also connected to a power supply component. The discharge signal monitoring system also includes mounting brackets for fixing voltage sensors, ultrasonic sensors, temperature and humidity sensors and noise sensors, and the mounting brackets are detachably connected to the monitored switchgear.
优选的，集控单元包括采集器和与采集器相连的处理器，处理器与监控主机相连，采集器分别与电压传感器、超声波传感器、温湿度传感器和噪声传感器相连，处理器与采集器相连用于对采集器采集的数据进行存储、打包并加密传输至监控主机，通过采集器对电压传感器、超声波传感器、温湿度传感器和噪声传感器生成的信号进行实时采集，并通过处理器实现数据的存储、打包并加密传输至监控主机，能保证数据的安全性能，采集效果好。Preferably, the centralized control unit includes a collector and a processor connected to the collector, the processor is connected to the monitoring host, the collector is respectively connected to a voltage sensor, an ultrasonic sensor, a temperature and humidity sensor and a noise sensor, and the processor is connected to the collector for The data collected by the collector is stored, packaged and encrypted and transmitted to the monitoring host, and the signals generated by the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor are collected in real time through the collector, and the data is stored and stored by the processor. Packing and encrypted transmission to the monitoring host can ensure the security performance of the data and the collection effect is good.
优选的，集控单元还包括箱体，采集器和处理器均设置在箱体内，安装支架设置在箱体上，且箱体上设有放置电压传感器、超声波传感器、温湿度传感器和噪声传感器的放置框，能防止集控单元的损坏，且减少整体集控单元的体积，安装支架设置在箱体上，能实现安装支架的同步携带，减少了携带时的工作量，放置框的设置，能防止电压传感器、超声波传感器、温湿度传感器和噪声传感器的丢失和损坏。Preferably, the centralized control unit also includes a box body, the collector and the processor are arranged in the box body, the mounting bracket is arranged on the box body, and the box body is provided with a place for placing a voltage sensor, an ultrasonic sensor, a temperature and humidity sensor and a noise sensor. The placement frame can prevent damage to the central control unit and reduce the volume of the overall centralized control unit. The installation bracket is set on the box body, which can realize the synchronous carrying of the installation bracket and reduce the workload when carrying. The setting of the placement frame can Prevent loss and damage of voltage sensors, ultrasonic sensors, temperature and humidity sensors and noise sensors.
优选的，安装支架包括竖杆和横杆，竖杆设置在横杆上，竖杆和横杆上均设有固定孔，横杆上设有磁铁或/和吸盘，竖杆和横杆上均设有标识牌，固定孔有利于电压传感器、超声波传感器、温湿度传感器和噪声传感器的快速安装拆卸，标识牌的设置，磁铁或/和吸盘实现了横杆与开关柜的安装拆卸，并保证连接的可靠性，防止信号采集时横杆的脱落，标识牌有利于检修人员检修及后续的维护。Preferably, the mounting bracket includes a vertical bar and a horizontal bar, the vertical bar is arranged on the horizontal bar, the vertical bar and the horizontal bar are provided with fixing holes, the horizontal bar is provided with magnets or/and suckers, and the vertical bar and the horizontal bar are all provided with fixing holes. There is an identification plate, and the fixing holes are conducive to the quick installation and disassembly of the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor. The setting of the identification plate, the magnet or/and suction cup realize the installation and disassembly of the cross bar and the switch cabinet, and ensure the connection The reliability is high, preventing the crossbar from falling off during signal collection, and the identification plate is conducive to maintenance personnel's inspection and subsequent maintenance.
优选的，监控主机与远程交互终端通过4G网络实现通讯，4G网络能够实现数据的快速传输，且能保证数据传输的高质量。Preferably, the monitoring host and the remote interactive terminal communicate through a 4G network, and the 4G network can realize fast data transmission and ensure high quality of data transmission.
优选的，供电组件包括220V交流电源和用于将220V交流电源转换成12V交流电源的变压器，220V交流电源通过变压器与集控单元相连，能实现对整个集控单元供电，使该监测系统中电压传感器、超声波传感器、温湿度传感器和噪声传感器的信号保持同步。Preferably, the power supply assembly includes a 220V AC power supply and a transformer for converting the 220V AC power supply into a 12V AC power supply. The 220V AC power supply is connected to the centralized control unit through the transformer, which can realize power supply to the entire centralized control unit, so that the voltage in the monitoring system The signals of sensors, ultrasonic sensors, temperature and humidity sensors and noise sensors are synchronized.
综上所述，本实用新型的优点：1.通过集控单元实现电压传感器、超声波传感器、温湿度传感器和噪声传感器生成信号的连续实时采集，并通过监控组件接收集控单元上传的数据，能够对开关柜的局放信号进行初步定位和放电类型判断，并在短期内对局放信号进行在线监测，及时反馈信号变化，预防开关柜中的局放缺陷进一步加重所可能导致的设备突发性故障，保证开关柜和低压环网柜的安全运行，有效提高供电可靠性；In summary, the utility model has the following advantages: 1. Realize the continuous real-time acquisition of signals generated by voltage sensors, ultrasonic sensors, temperature and humidity sensors and noise sensors through the centralized control unit, and receive the data uploaded by the centralized control unit through the monitoring component, which can Preliminary positioning and discharge type judgment of the partial discharge signal of the switchgear, and online monitoring of the partial discharge signal in a short period of time, timely feedback of signal changes, to prevent further aggravation of partial discharge defects in the switchgear may cause sudden failure of the equipment faults, ensure the safe operation of switchgear and low-voltage ring main unit, and effectively improve the reliability of power supply;
2.通过电压传感器和超声波传感器同时检测局部放电产生的暂态对地电压信号和超声波信号，实现对开关柜绝缘状态进行短中期连续监测；2. Simultaneously detect the transient ground voltage signal and ultrasonic signal generated by partial discharge through the voltage sensor and ultrasonic sensor to realize short-term and medium-term continuous monitoring of the insulation state of the switchgear;
3.相对于现有的检测工作，能大大提高了该项工作的工作效率，能结合中长期监测获取的数据信息，能够深入分析柜体中局放绝缘缺陷产生的原因；3. Compared with the existing detection work, the work efficiency of this work can be greatly improved, and the data information obtained by medium and long-term monitoring can be combined to deeply analyze the causes of partial discharge insulation defects in the cabinet;
4.远程交互终端的设置，检修人员可以在远方获取监控主机中的局放监测实时数据、历史数据和诊断结论，方便技术人员查看，并在重症开关柜中的局放缺陷有进一步恶化趋势时给予相关人员提醒警报；4. With the setting of the remote interactive terminal, the maintenance personnel can obtain the real-time data, historical data and diagnostic conclusions of the partial discharge monitoring in the monitoring host remotely, which is convenient for technicians to view, and when the partial discharge defects in the critical switch cabinet have a further deterioration trend Give relevant personnel a reminder alert;
5.安装支架与被监测的开关柜设置成可拆卸连接，能实现快速安装和拆卸，迅速实现对可疑开关柜的短期在线监测；5. The installation bracket and the monitored switch cabinet are set to be detachably connected, which can realize quick installation and disassembly, and quickly realize short-term online monitoring of suspicious switch cabinets;
6.整个放电信号监测系统结构简单、智能化高、安全性强、经济可靠的优点，能适用于变电所内35kV和10kV开关柜局部放电信号检测，也可用于配电环网柜，实用性能好。6. The entire discharge signal monitoring system has the advantages of simple structure, high intelligence, strong safety, and economy and reliability. It can be applied to the partial discharge signal detection of 35kV and 10kV switch cabinets in substations, and can also be used in power distribution ring network cabinets. Practical performance it is good.
附图说明Description of drawings
下面结合附图对本实用新型作进一步说明：Below in conjunction with accompanying drawing, the utility model is further described:
图1为本实用新型一种开关柜的放电信号监测系统的结构示意图；Fig. 1 is the structural representation of the discharge signal monitoring system of a kind of switchgear of the present utility model;
图2为本实用新型安装支架的结构示意图。Fig. 2 is a structural schematic diagram of the mounting bracket of the present invention.
具体实施方式detailed description
如图1、图2所示，一种开关柜的放电信号监测系统,包括集控单元1和监控主机2，集控单元1上连接有分别用于接收开关柜中局部放电源在开关柜柜壁产生的暂态对地电压信号的电压传感器3，用于接收局部放电源在空间产生的超声波信号的超声波传感器4，用于监测开关柜所处环境的温度和湿度的温湿度传感器5，用于监测开关柜的环境噪声的噪声传感器6，监控主机2与集控单元1相连用于接收集控单元1上传的数据，监控主机2上连接有远程交互终端7，集控单元1上还连接有供电组件8，所述放电信号监测系统还包括用于固定电压传感器3、超声波传感器4、温湿度传感器5和噪声传感器6的安装支架9，安装支架9与被监测的开关柜可拆卸连接。As shown in Figures 1 and 2, a discharge signal monitoring system for a switchgear includes a centralized control unit 1 and a monitoring host 2. The centralized control unit 1 is connected with a power supply for receiving partial discharges in the switchgear. The voltage sensor 3 for the transient ground voltage signal generated by the wall, the ultrasonic sensor 4 for receiving the ultrasonic signal generated by the partial discharge source in the space, and the temperature and humidity sensor 5 for monitoring the temperature and humidity of the environment where the switchgear is located. The noise sensor 6 is used to monitor the environmental noise of the switch cabinet. The monitoring host 2 is connected to the centralized control unit 1 to receive the data uploaded by the centralized control unit 1. The remote interactive terminal 7 is connected to the monitoring host 2, and the centralized control unit 1 is also connected to There is a power supply component 8, and the discharge signal monitoring system also includes a mounting bracket 9 for fixing the voltage sensor 3, the ultrasonic sensor 4, the temperature and humidity sensor 5 and the noise sensor 6, and the mounting bracket 9 is detachably connected to the monitored switch cabinet.
集控单元1包括采集器11和与采集器11相连的处理器12，处理器12与监控主机2相连，采集器11分别与电压传感器3、超声波传感器4、温湿度传感器5和噪声传感器6相连，处理器与采集器相连用于对采集器采集的数据进行存储、打包并加密传输至监控主机2，通过采集器对电压传感器、超声波传感器、温湿度传感器和噪声传感器生成的信号进行实时采集，并通过处理器实现数据的存储、打包并加密传输至监控主机，能保证数据的安全性能，采集效果好，本实施例中，可根据开关柜的型号设置电压传感器3和超声波传感器的个数，且电压传感器3的个数不大于7个，超声波传感器的个数不大于8个，温湿度传感器5和噪声传感器6均设置一个。The centralized control unit 1 includes a collector 11 and a processor 12 connected to the collector 11, the processor 12 is connected to the monitoring host 2, and the collector 11 is connected to the voltage sensor 3, the ultrasonic sensor 4, the temperature and humidity sensor 5 and the noise sensor 6 respectively , the processor is connected to the collector for storing, packing and encrypting the data collected by the collector to the monitoring host 2, and the collector is used to collect the signals generated by the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor in real time, And through the processor, the data is stored, packaged and encrypted to be transmitted to the monitoring host, which can ensure the safety performance of the data, and the collection effect is good. In this embodiment, the number of voltage sensors 3 and ultrasonic sensors can be set according to the model of the switch cabinet. And the number of voltage sensors 3 is not more than 7, the number of ultrasonic sensors is not more than 8, and the temperature and humidity sensor 5 and the noise sensor 6 are each provided with one.
集控单元1还包括箱体13，采集器和处理器均设置在箱体13内，安装支架9设置在箱体上，且箱体上设有放置电压传感器3、超声波传感器4、温湿度传感器5和噪声传感器6的放置框14，能防止集控单元的损坏，且减少整体集控单元的体积，安装支架设置在箱体上，能实现安装支架的同步携带，减少了携带时的工作量，放置框的设置，能防止电压传感器、超声波传感器、温湿度传感器和噪声传感器的丢失和损坏，安装支架9包括竖杆91和横杆92，竖杆设置在横杆上，竖杆和横杆上均设有固定孔93，横杆上设有磁铁94和吸盘95，竖杆和横杆上均设有标识牌96，固定孔有利于电压传感器、超声波传感器、温湿度传感器和噪声传感器的快速安装拆卸，标识牌的设置，磁铁或/和吸盘实现了横杆与开关柜的安装拆卸，并保证连接的可靠性，防止信号采集时横杆的脱落，标识牌有利于检修人员检修及后续的维护。The centralized control unit 1 also includes a box body 13, the collector and the processor are all arranged in the box body 13, the mounting bracket 9 is arranged on the box body, and the box body is provided with a voltage sensor 3, an ultrasonic sensor 4, a temperature and humidity sensor 5 and the placement frame 14 of the noise sensor 6 can prevent damage to the centralized control unit and reduce the volume of the overall centralized control unit. The installation bracket is arranged on the box body, which can realize the synchronous carrying of the installation bracket and reduce the workload when carrying , the setting of the placement frame can prevent the loss and damage of the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor. The mounting bracket 9 includes a vertical bar 91 and a horizontal bar 92. There are fixing holes 93 on the top, magnets 94 and suction cups 95 on the crossbar, and identification plates 96 on the vertical and crossbars. The fixing holes are conducive to the rapid installation of voltage sensors, ultrasonic sensors, temperature and humidity sensors and noise sensors. Installation and disassembly, identification plate setting, magnets or/and suction cups realize the installation and disassembly of the cross bar and the switch cabinet, and ensure the reliability of the connection, prevent the cross bar from falling off during signal collection, and the identification plate is conducive to the maintenance of maintenance personnel and subsequent maintenance maintain.
监控主机2与远程交互终端7通过4G网络实现通讯，4G网络能够实现数据的快速传输，且能保证数据传输的高质量，供电组件8包括220V交流电源81和用于将220V交流电源转换成12V交流电源的变压器82，220V交流电源通过变压器82与集控单元1相连，能实现对整个集控单元供电，使该监测系统中电压传感器、超声波传感器、温湿度传感器和噪声传感器的信号保持同步。The monitoring host 2 and the remote interactive terminal 7 realize communication through the 4G network. The 4G network can realize fast data transmission and ensure high quality of data transmission. The power supply component 8 includes a 220V AC power supply 81 and is used to convert the 220V AC power supply into a 12V AC power supply. The AC power transformer 82, the 220V AC power is connected to the centralized control unit 1 through the transformer 82, which can realize the power supply to the entire centralized control unit, so that the signals of the voltage sensor, ultrasonic sensor, temperature and humidity sensor and noise sensor in the monitoring system are kept in sync.
使用时，通过磁铁94和吸盘95将安装支架9安装固定在可疑开关柜上，并根据开关柜的型号设置电压传感器3和超声波传感器4的个数，然后将电压传感器3、超声波传感器4、温湿度传感器5、噪声传感器6根据标识牌96的指示进行安装固定，采集器11实现电压传感器3、超声波传感器4、温湿度传感器5、噪声传感器6生成信号的连续实时采集，并通过处理器12对采集器采集的数据进行存储、打包并加密传输至监控主机2内，监控主机实现对数据的存储、监测显示、分析预警、数据挖掘、设备统一管理、产生各种类型报表等功能，并可以通过4G网络与远程交互终端7通讯，远程交互终端7可以在远方获取监控主机中的局放监测实时数据、历史数据和诊断结论，方便检修人员查看，并在重症开关柜中的局放缺陷有进一步恶化趋势时给予相关人员提醒警报。During use, the installation bracket 9 is installed and fixed on the suspicious switch cabinet by the magnet 94 and the suction cup 95, and the number of the voltage sensor 3 and the ultrasonic sensor 4 is set according to the model of the switch cabinet, and then the voltage sensor 3, the ultrasonic sensor 4, the temperature and humidity Sensor 5 and noise sensor 6 are installed and fixed according to the indication of identification plate 96, and collector 11 realizes the continuous real-time collection of signals generated by voltage sensor 3, ultrasonic sensor 4, temperature and humidity sensor 5, and noise sensor 6, and collects signals through processor 12. The data collected by the device is stored, packaged and encrypted and transmitted to the monitoring host 2. The monitoring host realizes the functions of data storage, monitoring and display, analysis and early warning, data mining, unified management of equipment, and generation of various types of reports. The network communicates with the remote interactive terminal 7, and the remote interactive terminal 7 can remotely obtain the real-time data, historical data and diagnostic conclusions of PD monitoring in the monitoring host, which is convenient for maintenance personnel to check, and further worsens the partial discharge defects in the critical switch cabinet Alert relevant personnel when trends occur.
除上述优选实施例外，本实用新型还有其他的实施方式，本领域技术人员可以根据本实用新型作出各种改变和变形，只要不脱离本实用新型的精神，均应属于本实用新型所附权利要求所定义的范围。In addition to the above-mentioned preferred embodiment, the utility model also has other implementation modes, those skilled in the art can make various changes and deformations according to the utility model, as long as they do not depart from the spirit of the utility model, all should belong to the appended rights of the utility model The scope defined by the requirement.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507556A (en) * | 2018-12-28 | 2019-03-22 | 国网山东省电力公司高密市供电公司 | MDS type switchgear fault detection alarm device |
| CN110554285A (en) * | 2019-09-02 | 2019-12-10 | 中铁工程设计咨询集团有限公司 | self-adaptive environmental noise suppression partial discharge monitoring method |
| CN111090271A (en) * | 2019-07-19 | 2020-05-01 | 国网湖北省电力有限公司武汉供电公司 | 35kv-10kv switchgear fault pre-diagnosis system and method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109507556A (en) * | 2018-12-28 | 2019-03-22 | 国网山东省电力公司高密市供电公司 | MDS type switchgear fault detection alarm device |
| CN111090271A (en) * | 2019-07-19 | 2020-05-01 | 国网湖北省电力有限公司武汉供电公司 | 35kv-10kv switchgear fault pre-diagnosis system and method |
| CN110554285A (en) * | 2019-09-02 | 2019-12-10 | 中铁工程设计咨询集团有限公司 | self-adaptive environmental noise suppression partial discharge monitoring method |
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