安科瑞徐行德/顧錫君

摘 要：高壓開關設備是變電站和配電站中保證電力系統安全運行的重要設備之一,因此,開關柜的穩定運行對于整個電力系統有非常重要的意義。設備老化、長期高負荷運行都可能使設備局部溫度過高而發生火災，因此,對變電站內的敏感設備進行溫度檢測變得尤為重要。

關鍵詞：高壓開關柜；無線測溫；溫度檢測

Abstract：High-voltage switchgear is one of the important equipment to ensure the safe operation of the power system in substations.Therefore, the stable operation of the switchgear is of great significance to the entire power system. The aging of equipment and long-term high-load operation may cause the local temperature of the equipment to be too high and cause fire.Therefore, temperature detection of sensitive equipment in substations becomes particularly important.

Keywords：High-voltage switchgear;Wireless temperature measurement;Measure temperature

1 項目概況Project Overview

本工程為金融投資中心項目，項目立足南寧，服務，面向東盟，總建筑面積約28萬多平方米，被列為市著重項目。

本工程包含10kV系統的6個配電房，共40面高壓柜。

This project is a financial investment center project, based in Nanning, serving the Beibu Gulf, facing ASEAN, with a total construction area of more than 280,000 square meters, and is listed as a key project of the city.

This project includes 6 power distribution rooms with 10kV system, with a total of 40 high-voltage cabinets.

2 產品需求及配置 Product requirements and configuration

本次針對廣西金投中心項目，需要配置微機保護裝置、智能操控裝置及無線測溫產品，對廠區內配電工程中除PT柜外所有高壓柜狀態進行全方面的監測。本項目共計使用微機保護裝置40只，智能操控裝置40只，有源無線傳感器480只。

無線測溫要求如下：

1）一次動態模擬圖，斷路器分合位置動態顯示；接地開關位置動態顯示；彈簧儲能動態顯示；

2）兩路溫濕度控制器功能，通訊線長6米，液晶顯示；

3）語音防誤提示功能，人體紅外感應探頭；

4）加熱器斷線報警；

5）柜內照明操作；

6）分合閘、儲能、遠方/就地開關；

7）高壓帶電顯示和閉鎖裝置；

8）RS485通訊功能，Modbus 通訊協議

9）每面高壓柜需12點測溫，傳感器采用電池供電，電池壽命應大于5年。

This time, for the Guangxi Golden Investment Center project, it is necessary to configure microcomputer protection devices, intelligent control devices and wireless temperature measurement products to monitor the status of all high-voltage cabinets in the power distribution project in the plant except for the PT cabinet.This project uses a total of 40 microcomputer protection devices, 40 intelligent control devices, and 480 active wireless sensors.

The requirements for wireless temperature measurement are as follows:

1) A dynamic simulation diagram, dynamic display of circuit breaker opening and closing position; dynamic display of grounding switch position; dynamic display of spring energy storage;

2) Two-channel temperature and humidity controller function, the communication line is 6 meters long, and the LCD display;

3) Voice anti-error prompt function, human body infrared sensor probe;

4) Heater disconnection alarm;

5) Lighting operation in the cabinet;

6) Opening and closing, energy storage, remote/local switch;

7) High voltage live display and locking device;

8) RS485 communication function, Modbus communication protocol

9) Each high-voltage cabinet needs to measure the temperature at 12 points, the sensor is powered by a battery, and the battery life should be greater than 5 years.

3 相關產品 Rated Products

4 結語Project Summary

高壓開關柜是電力傳輸系統的樞紐,起著通斷、控制或保護等作用,保障著系統安全運行。本文介紹的安科瑞無線測溫產品針對高壓開關柜內的綜合測控，實現開關柜盤面整潔、美觀，易于調試維護，實現集操作、顯示于一體的同時，對柜內銅排、電纜、斷路器觸頭等電氣節點的溫度進行監測，防止在運行過程中因氧化、松動、灰塵等因素造成接點接觸電阻過大而發熱成為隱患，提升設備安全保障。

The high-voltage switchgear is the hub of the power transmission system, which plays the role of on-off, control or protection, ensuring the safe operation of the system.The Acrel wireless temperature measurement products introduced in this article are aimed at the comprehensive measurement and control of high-voltage switch cabinets, and realize the clean and beautiful of the switch cabinet, easy to debug and maintain, and realize the integration of operation and display at the same time, monitor the temperature of electrical nodes such as copper bars, cables, and breaker contacts in the cabinet.Prevent the contact resistance from becoming too large due to oxidation, looseness, dust and other factors during operation and heat generation as a hidden danger, and improve the safety of the equipment.

5 現場安裝圖片Photos on site

參考文獻

[1] Solutions for Enterprise Micro-grid System.2020.02

產品推薦：導軌式直流電能表；直流霍爾傳感器；多用戶預付費電能表

作者介紹：徐行德，男，本科，江蘇安科瑞電器制造有限公司，主要從事光儲充等研發與應用