摘 要：高压开关设备是变电站和配电站中保证电力系统安全运行的重要设备之一,因此,开关柜的稳定运行对于整个电力系统有非常重要的意义。设备老化、长期高负荷运行都可能使设备局部温度过高而发生火灾，因此,对变电站内的敏感设备进行温度检测变得尤为重要。

关键词：高压开关柜；无线测温；温度检测

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 项目概况Project Overview

本工程为金融投资中心项目，项目立足南宁，服务北部湾，面向东盟，总建筑面积约28万多平方米，被列为市着重项目。

本工程包含10kV系统的6个配电房，共40面高压柜。

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 产品需求及配置 Product requirements and configuration

本次针对广西金投中心项目，需要配置微机保护装置、智能操控装置及无线测温产品，对厂区内配电工程中除PT柜外所有高压柜状态进行全方面的监测。本项目共计使用微机保护装置40只，智能操控装置40只，有源无线传感器480只。

无线测温要求如下：

1）一次动态模拟图，断路器分合位置动态显示；接地开关位置动态显示；弹簧储能动态显示；

2）两路温湿度控制器功能，通讯线长6米，液晶显示；

3）语音防误提示功能，人体红外感应探头；

4）加热器断线报警；

5）柜内照明操作；

6）分合闸、储能、远方/就地开关；

7）高压带电显示和闭锁装置；

8）RS485通讯功能，Modbus 通讯协议

9）每面高压柜需12点测温，传感器采用电池供电，电池寿命应大于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 相关产品 Rated Products

4 结语Project Summary

高压开关柜是电力传输系统的枢纽,起着通断、控制或保护等作用,保障着系统安全运行。本文介绍的安科瑞无线测温产品针对高压开关柜内的综合测控，实现开关柜盘面整洁、美观，易于调试维护，实现集操作、显示于一体的同时，对柜内铜排、电缆、断路器触头等电气节点的温度进行监测，防止在运行过程中因氧化、松动、灰尘等因素造成接点接触电阻过大而发热成为隐患，提升设备安全保障。

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 现场安装图片Photos on site

参考文献

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

安科瑞 缪阳扬

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