WO2013139105A1 - 一种小型化高压电缆状态监测装置 - Google Patents

一种小型化高压电缆状态监测装置 Download PDF

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Publication number
WO2013139105A1
WO2013139105A1 PCT/CN2012/079296 CN2012079296W WO2013139105A1 WO 2013139105 A1 WO2013139105 A1 WO 2013139105A1 CN 2012079296 W CN2012079296 W CN 2012079296W WO 2013139105 A1 WO2013139105 A1 WO 2013139105A1
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Prior art keywords
voltage cable
data
sensor
communication unit
data collection
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PCT/CN2012/079296
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English (en)
French (fr)
Inventor
李海
高小庆
沈磊
宋琳
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上海市电力公司
国家电网公司
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Publication of WO2013139105A1 publication Critical patent/WO2013139105A1/zh

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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q9/00—Arrangements in telecontrol or telemetry systems for selectively calling a substation from a main station, in which substation desired apparatus is selected for applying a control signal thereto or for obtaining measured values therefrom
    • 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
    • G01R31/50—Testing of electric apparatus, lines, cables or components for short-circuits, continuity, leakage current or incorrect line connections
    • G01R31/58—Testing of lines, cables or conductors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D21/00—Measuring or testing not otherwise provided for
    • G01D21/02—Measuring two or more variables by means not covered by a single other subclass
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/10—Arrangements in telecontrol or telemetry systems using a centralized architecture
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04Q—SELECTING
    • H04Q2209/00—Arrangements in telecontrol or telemetry systems
    • H04Q2209/30—Arrangements in telecontrol or telemetry systems using a wired architecture

Definitions

  • the present invention relates to a cable condition monitoring device, and more particularly to a miniaturized high voltage cable state monitoring device. Background technique
  • the monitoring devices for high-voltage cables are installed in indoor 19-inch cabinets.
  • the installation space is large and the working environment is good.
  • the devices produced by various manufacturers adopt separate mechanisms, namely power modules and data acquisition modules.
  • the communication modules are installed separately, and this installation method takes up a lot of space. If such a device is installed in such a way as to be installed in a small-sized high-voltage cable working well or in a sheath transposing box, the space occupied by the device and the wiring between the modules may hinder the cable maintenance personnel from entering and leaving the working well, and at the same time maintaining the cable.
  • An object of the present invention is to provide a small-sized high-voltage cable state monitoring device that is small in size, convenient to install, and reliable in operation, in order to overcome the above-mentioned drawbacks of the prior art.
  • a miniaturized high-voltage cable state monitoring device comprising: a front-end measuring sensor group and a data collecting terminal, wherein the front-end measuring sensor group is connected to the data collecting terminal;
  • the front-end measurement sensor group transmits all the collected data to the data collection terminal, and the data collection terminal performs AD conversion processing and then sends the data to the upper computer.
  • the front-end measurement sensor group includes an access control sensor, an ambient temperature and humidity sensor, a sheath circulation sensor and a cable temperature sensor, and the access control sensors are respectively installed on a box door of the data collection terminal and a high-voltage cable sheath transposition box.
  • the ambient temperature and humidity sensor is installed on the data collection terminal and inside the box of the high voltage cable sheath transposition box, and the sheath loop sensor is installed on the grounding line of the high voltage cable sheath
  • the cable temperature sensor is mounted on the surface of the high voltage cable.
  • the data collection terminal includes a data collection unit, a communication unit and a power supply unit, wherein the power supply unit is respectively connected to the data collection unit and the communication unit, and the data collection unit is connected with the communication unit, and the data collection unit is The front end measurement is connected by a sensor group, and the communication unit is connected to the upper computer.
  • the data collection unit includes a sensor signal receiving circuit and a high voltage protection circuit that are sequentially connected,
  • the A/D converter and the CPU are connected to the sensor signal receiving circuit and the front end measuring sensor group, and the CPU is connected to the communication unit.
  • the communication unit includes a GPRS module and an RS485 bus.
  • the data acquisition unit, the communication unit and the power supply unit all adopt chip-packaged integrated circuit boards, and the integrated circuit board adopts horizontal welding for vertical capacitor welding, and horizontally installs three integrated circuit boards during installation. Installed on the same insulating base plate.
  • the present invention has the following advantages:
  • the height of the data collection terminal cabinet is greatly reduced compared with the traditional cabinet of the device. It is only one-half of the traditional cabinet, small in size, convenient to install, reliable in operation, and can be widely used in the transposition of the sheath in the working well of the high-voltage cable. The condition monitoring of equipment and ground transposition box does not affect the normal operation of the high voltage cable sheath transposition equipment during operation.
  • Figure 1 is a schematic structural view of the present invention
  • FIG. 2 is a schematic block diagram of a data collection terminal of the present invention.
  • FIG. 3 is a schematic structural diagram of a data collection terminal according to the present invention. detailed description
  • a miniaturized high-voltage cable state monitoring device includes a front-end measuring sensor 1 and a data collecting terminal 2.
  • the front-end measuring sensor 1 includes various measuring sensors such as an access sensor, an ambient temperature and humidity sensor, a sheath circulating current sensor, and a cable temperature sensor;
  • the data collecting terminal 2 includes a data collecting unit, a communication unit, and a power supply unit; and the access sensor is installed in the data.
  • the ambient temperature and humidity sensor is installed on the well wall next to the high-voltage cable working well data acquisition terminal 2 and the high-voltage cable sheath is transposed Inside the box, monitor the location temperature and humidity of the sensor; the sheath circulating current sensor is installed on the grounding wire of the high voltage cable sheath to monitor the circulating current of the high voltage cable sheath; the cable temperature sensor is installed on the surface of the high voltage cable to monitor the surface of the high voltage cable temperature. All data collected by the front-end measurement sensor 1 is transmitted to the data acquisition unit of the data collection terminal 2.
  • the schematic diagram of the data acquisition terminal 2 includes one data acquisition unit 3, one communication unit 4 and one power supply unit 5.
  • the power supply unit 5 provides the power required by the data acquisition unit 3 and the communication unit 4.
  • the data acquisition unit 3 collects and collects various sensor monitoring information transmitted by the front-end measurement sensor 1 and transmits it to the communication unit 4.
  • the data acquisition unit 3 includes a sensor signal receiving circuit, a high-voltage protection circuit, an A/D conversion circuit, and a CPU circuit.
  • the communication unit 4 transmits the data of the device to the upper computer through the communication link.
  • the communication unit has 2 communication links, which are RS485 twisted pair mode and GPRS wireless mode.
  • the size of each unit board in the data collection terminal 2 is: 140 mm X 70 mm X 10 mm (length X width X height) of the data acquisition unit 3; 100 mm X 70 mm X 10 mm (length X width X) of the communication unit 4
  • the power supply unit 5 is 140mmX 100mm X 30mm (length X width X height), and the data acquisition terminal 2 composed of the three functional circuit boards has a cabinet size of only 300mm X 200mm X 70mm (length X width X height).
  • the height of the cabinet is smaller than the conventional high-voltage cable state monitoring device, and the purpose of miniaturization is achieved.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Arrangements For Transmission Of Measured Signals (AREA)

Abstract

一种小型化高压电缆状态监测装置，包括前端测量用传感器组（1）和数据采集终端（2），所述的前端测量用传感器组（1）与数据采集终端（2）连接；所述的前端测量用传感器组（1）将采集到的数据全部传输给数据采集终端（2），数据采集终端进行AD转换处理后发送给上位机。与现有技术相比，该监测装置具有体积小、安装方便、工作可靠等优点。

Description

一种小型化高压电缆状态监测装置 技术领域
本发明涉及一种电缆状态监测装置， 尤其是涉及一种小型化高压电缆状态 监测装置。 背景技术
目前高压电缆的监测装置多安装在室内 19 英寸的机柜中， 其安装空间较 大， 工作环境较好， 为了接线方便， 各厂家生产的装置多采用分体的机构， 即 电源模块、 数据采集模块、 通讯模块分别独立安装， 这种安装方式会占用较大 的空间。 若在空间较小的高压电缆工作井井口附近或护层换位箱中采用这种方 式安装这类装置时， 装置占用的空间和模块间的接线会阻碍电缆维护人员进出 工作井， 同时电缆维护人员进出工作井的动作可能会损坏装置； 另外在高压电 缆工作井井口附近或护层换位箱中潮湿环境下， 这种安装方式也会使监测装置 无法正常运行， 过早损坏。 发明内容 本发明的目的就是为了克服上述现有技术存在的缺陷而提供一种体积小、 安装方便、 工作可靠的小型化高压电缆状态监测装置。
本发明的目的可以通过以下技术方案来实现：
一种小型化高压电缆状态监测装置， 其特征在于， 包括前端测量用传感器 组和数据采集终端， 所述的前端测量用传感器组与数据采集终端连接；
所述的前端测量用传感器组将采集的采集到的数据全部传输给数据采集终 端， 数据采集终端进行 AD转换处理后发送给上位机。
所述的前端测量用传感器组包括门禁传感器、 环境温湿度传感器、 护层环 流传感器和电缆温度传感器， 所述的门禁传感器分别安装在数据采集终端的箱 门上和高压电缆护层换位箱的箱门上， 所述的环境温湿度传感器安装在数据采 集终端上和高压电缆护层换位箱的箱体内部， 所述的护层环流传感器安装在高 压电缆护层的接地线， 所述的电缆温度传感器安装在高压电缆表面。 所述的数据采集终端包括数据采集单元、 通讯单元和供电单元， 所述的供 电单元分别与数据采集单元、 通讯单元连接， 所述的数据采集单元与通讯单元 连接， 所述的数据采集单元与前端测量用传感器组连接， 所述的通讯单元与上 位机连接。
所述的数据采集单元包括依次连接的传感器信号接收电路、高压保护电路、
A/D转换器、 CPU, 所述的传感器信号接收电路与前端测量用传感器组连接， 所述的 CPU与通讯单元连接。
所述的通讯单元包括 GPRS模块和 RS485总线。
所述的数据采集单元、通讯单元和供电单元均采用贴片封装的集成电路板， 该集成电路板对于立式电容焊接时采用卧式焊接， 安装时将 3个集成电路板采 用卧式安装法安装在同一个绝缘底板上。
与现有技术相比， 本发明具有以下优点：
数据采集终端箱体高度与该类装置传统箱体相比， 大大降低， 只有传统箱 体的二分之一， 体积小， 安装方便， 工作可靠， 可广泛用于高压电缆工作井中 护层换位设备及地面换位箱的状态监测， 运行时不影响高压电缆护层换位设备 的正常运行。 附图说明
图 1为本发明的结构示意图；
图 2为本发明的数据采集终端原理框图；
图 3为本发明的数据采集终端结构示意图。 具体实施方式
下面结合附图和具体实施例对本发明进行详细说明。
实施例
如图 1所示， 一种小型化高压电缆状态监测装置， 包括前端测量用传感器 1和数据采集终端 2。前端测量用传感器 1包括各种测量用传感器，如门禁传感 器， 环境温湿度传感器， 护层环流传感器， 电缆温度传感器； 数据采集终端 2 包括数据采集单元、 通讯单元和供电单元； 门禁传感器安装在数据采集终端 2 的箱门上和高压电缆护层换位箱的箱门上， 监测箱门开启状态； 环境温湿度传 感器安装在高压电缆工作井井口数据采集终端 2旁边的井壁上和高压电缆护层 换位箱的箱体内部， 监测传感器所处位置环境温湿度； 护层环流传感器安装在 高压电缆护层的接地线上， 监测高压电缆护层环流； 电缆温度传感器安装在高 压电缆表面， 监测高压电缆表面温度。 所有前端测量用传感器 1采集到的数据 全部传输给数据采集终端 2的数据采集单元。
如图 2所示， 数据采集终端 2原理图， 包括 1个数据采集单元 3， 1个通讯 单元 4和 1个供电单元 5。 供电单元 5提供数据采集单元 3及通讯单元 4所需 电能。 数据采集单元 3采集处理前端测量用传感器 1传输的各种传感器监测信 息并传输给通讯单元 4， 数据采集单元 3包括传感器信号接收电路、 高压保护 电路、 A/D转换电路、 CPU电路组成。 通讯单元 4将装置的数据通过通讯链路 传输给上位机。通讯单元有 2中通讯链路， 为 RS485双绞线方式和 GPRS无线 方式。
如图 3所示， 数据采集终端 2 中各单元板的尺寸为： 数据采集单元 3为 140mm X 70mm X 10mm (长 X宽 X高）； 通讯单元 4为 100mm X 70mm X 10mm (长 X宽 X高）； 供电单元 5为 140mmX 100mm X 30mm (长 X宽 X高）， 由这 3 个功能电路板构成的数据采集终端 2 的箱体尺寸只有 300mm X 200mm X 70mm (长 X宽 X高） ，箱体高度小于目前传统的高压电缆状态监测装置， 实现 了小型化的目的。

Claims

权 利 要 求
1. 一种小型化高压电缆状态监测装置， 其特征在于， 包括前端测量用传感 器组和数据采集终端， 所述的前端测量用传感器组与数据采集终端连接；
所述的前端测量用传感器组将采集的采集到的数据全部传输给数据采集终 端， 数据采集终端进行 AD转换处理后发送给上位机。
2.根据权利要求 1所述的一种小型化高压电缆状态监测装置，其特征在于， 所述的前端测量用传感器组包括门禁传感器、 环境温湿度传感器、 护层环流传 感器和电缆温度传感器， 所述的门禁传感器分别安装在数据采集终端的箱门上 和高压电缆护层换位箱的箱门上， 所述的环境温湿度传感器安装在数据采集终 端上和高压电缆护层换位箱的箱体内部， 所述的护层环流传感器安装在高压电 缆护层的接地线， 所述的电缆温度传感器安装在高压电缆表面。
3.根据权利要求 1所述的一种小型化高压电缆状态监测装置，其特征在于， 所述的数据采集终端包括数据采集单元、 通讯单元和供电单元， 所述的供电单 元分别与数据采集单元、通讯单元连接，所述的数据采集单元与通讯单元连接， 所述的数据采集单元与前端测量用传感器组连接， 所述的通讯单元与上位机连 接。
4.根据权利要求 3所述的一种小型化高压电缆状态监测装置，其特征在于， 所述的数据采集单元包括依次连接的传感器信号接收电路、高压保护电路、 A/D 转换器、 CPU, 所述的传感器信号接收电路与前端测量用传感器组连接， 所述 的 CPU与通讯单元连接。
5.根据权利要求 3所述的一种小型化高压电缆状态监测装置，其特征在于， 所述的通讯单元包括 GPRS模块和 RS485总线。
6.根据权利要求 3所述的一种小型化高压电缆状态监测装置，其特征在于， 所述的数据采集单元、 通讯单元和供电单元均采用贴片封装的集成电路板， 该 集成电路板对于立式电容焊接时采用卧式焊接， 安装时将 3个集成电路板采用 卧式安装法安装在同一个绝缘底板上。
PCT/CN2012/079296 2012-03-19 2012-07-27 一种小型化高压电缆状态监测装置 WO2013139105A1 (zh)

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