安科瑞 陳聰 周潔

摘要：隨著電力工業(yè)的發(fā)展，對設備的安全性、可靠性要求越來越高。在這種條件下，高壓設備的無線測溫系統(tǒng)應運而生。這種技術是將內(nèi)置電池或電流感應和無線發(fā)射模塊的測溫傳感器安裝于各測溫點，由于其體積小，且無需任何接線，其電氣安全性可以得到保證。傳感器周期性的將測溫數(shù)據(jù)無線發(fā)送至接收單元，接收單元可聯(lián)網(wǎng)將數(shù)據(jù)送至主站，以此實現(xiàn)一個區(qū)域系統(tǒng)的電氣溫度監(jiān)測。

??本文介紹了無線測溫傳感器在荷蘭某變配電室的應用

??Abstract: With the development power industry,the requirements for the safety and reliability of equipment are getting higher and higher. In this situation,ACREL wireless temperature monitoring system is designed for high voltage device. This technology is to install the temperature sensor with built-in battery or temperature sensor by current sensing and wireless transmitter module at each temperature measurement point. The sensor periodically sends the temperature measurement data wireless to the receiving unit, and the receiving unit can be connected to the network to send the data to the master station, thereby realizing electrical temperature monitoring of a regional system.

??This article introduce wireless monitoring system used in substations in Netherlands.

??1.當前現(xiàn)狀 Current Status

??多年來，由于技術水平的限制，雖然曾利用紅外測溫儀、紅外成像儀、感溫電纜、傳統(tǒng)的點式測溫系統(tǒng)希望解決上述問題，但都無法實現(xiàn)開關柜內(nèi)如斷路器、刀閘聯(lián)接點和觸頭測溫。目前，國內(nèi)電力測溫主要應用紅外點測儀和光纖測溫儀，而在線方式由于無法解決高壓絕緣問題，所以高壓開關的觸點等空間有限的電氣設備基本上都是處于*無監(jiān)控的狀態(tài)下運行，存在重大安全隱患。

??For many years, due to the limitations of the technical level, although infrared thermometer, infrared imager, temperature sensing cable, traditional point-type temperature measurement system have been used to solve the above problems, but can not achieve the switch cabinet such as circuit breaker, the connection point and contact temperature measurement. At present, domestic electric temperature measurement mainly uses infrared point measuring instrument and optical fiber temperature measuring instrument. However, the on-line method cannot solve the problem of high-voltage insulation, so the electrical equipment with limited space, such as the contact of high-voltage switch, basically operates in a completely unmonitored state, with major safety hazards.

??2.項目概述 Project Overview

??荷蘭DigIoT公司是一家電力物聯(lián)網(wǎng)公司，為當?shù)馗髯冸娬咎峁╇娏ξ锫?lián)網(wǎng)服務。客戶咨詢安科瑞無線測溫產(chǎn)品，希望通過安科瑞ATE無線溫度傳感器和ATC接收器，對開關柜內(nèi)的線纜進行溫度檢測，并通過RS485通訊將數(shù)據(jù)傳輸?shù)胶笈_進行實時監(jiān)控，從而可以預防開關柜內(nèi)部過熱發(fā)生故障，影響設備正常運轉(zhuǎn)，避免安全隱患。

??DigIoT is an electric IoT company, providing electrical IoT services for local substations. Customer consults  Acrel wireless temperature measurement products, attending through Acrel ATE wireless temperature sensor and ATC receiver, the cable in the switchgear temperature detection, And through RS485 communication data transmission to the back platform for real-time monitoring, can effectively prevent overheating failure, affect the normal operation of equipment, avoid safety risks.

??3.無線測溫產(chǎn)品介紹

??Wireless temperature monitoring device Introduction

??安科瑞在線測溫裝置適用于高低壓開關內(nèi)線纜街頭，斷路器觸頭，高壓線纜中間頭，低壓大電流等設備的溫度檢測，防止在運行過程中因氧化，松動等因素造成接點接觸電阻過大而發(fā)熱成為安全隱患，及時，持續(xù)及準確反映設備運行狀態(tài)，提供設備安全性。

??Acrel on-line temperature measurement device is suitable for the temperature detection of high and low voltage switches, circuit breaker contacts, high voltage cable middle heads, low voltage and high current equipment, to prevent contact caused by oxidation, loosening and other factors during operation Excessive contact resistance and heat generation become a safety hazard, timely, continuous and accurate reflection of equipment operating status, and equipment safety.

??3.1 無線測溫方案Wireless temperature measurement scheme

??1.測溫元件Temperature measuring instrument

??1）溫度傳感器Temperature sensor

??a. 電池供電型無線溫度傳感器Battery-powered wireless temperature sensor

??安裝于發(fā)熱部位，采集溫度量并通過無線方式傳輸?shù)膫鞲衅鳌?/p>

??目前無線溫度傳感器有四款：

??sensor installed in a heating area that collects temperature and transmits it wirelessly.

??There are currently four type wireless temperature sensors:

??b. CT感應取電無線溫度傳感器CT induction radio wireless temperature sensor

??安裝于斷路器觸頭、母排、電纜搭接點等大電流處，采集溫度量并通過無線方式傳輸?shù)膫鞲衅鳌?/p>

??目前無線溫度傳感器有兩款：

??sensor installed at a high current such as a circuit breaker contact, a bus bar, a cable lap contact, to collect temperature and transmit it wirelessly.

??There are currently two wireless temperature sensors:

??2）接收/顯示單元Receiving /displaying unit

??a. 接收單元Receiving unit

??b. 顯示單元Displaying Unit

??3.2結構圖 Structure

??3.3 產(chǎn)品方案組合圖 Typical Solution

??4.典型應用Typical Application