安科瑞 陳聰

 Application of wireless temperature measurement products in low-voltage swtichgear in Singpore 

摘要：溫度是表征電力一次設備運行正常的一個重要參數。隨著用電量的急劇增長，為了滿足用電需求，變電站的開關柜等高低壓設備長期運行在線狀態(tài)，過負荷運行會導致一次設備的發(fā)熱及過熱，這一現象在負荷增長較快的地區(qū)顯得尤為普遍。這些情況如不及時得到監(jiān)控，及時處理，都將發(fā)生不可預測的大事故。通過對開關柜溫度的實時監(jiān)測，即可知道開關柜運行工況，通過電網信息資源整合，就可為狀態(tài)檢修提供強有力的依據因此，進行安全溫度監(jiān)測及智能化控制是非常有必要的。

Abstract: Temperature is an important parameter that characterizes the normal operation of electric primary equipment. With the rapid increase in power consumption, in order to meet the demand for electricity, high and low voltage equipment such as switch cabinets in substations are operating online for a long time. Overload operation will cause heating and overheating of primary equipment. This phenomenon is especially true in areas with fast load growth. universal. If these situations are not monitored and dealt with in time, unpredictable accidents will occur. Through real-time monitoring of the temperature of the switchgear, the operating conditions of the switchgear can be known, and the integration of power grid information resources can provide a strong basis for condition maintenance. Therefore, safe temperature monitoring and intelligent control are very necessary.

關鍵字：無線測溫傳感器，無線測溫系統(tǒng)，433Mhz無線測溫

Keywords: Wireless temperature sensor, wireless temperature monitoring system, 433Mhz wireless temperature sensor

1.項目概述 Project Overview

某新加坡客戶為中低壓電氣柜成套公司，對無線測溫產品非常感興趣，選擇我司ATE400型CT感應取電式傳感器，并且采用ATC450收發(fā)器來連接顯示屏，后期計劃通過4G網關上傳云平臺系統(tǒng)。合理監(jiān)控過熱故障，避免安全隱患。

A Singapore customer is a complete company for low- and medium-voltage electrical cabinets and is very interested in wireless temperature measurement products. He chose our company's ATE400 CT induction power sensor, and used ATC450 transceivers to connect to the touchscreen. In the future, it plans to upload to the cloud platform through the 4G gateway. system. Effectively monitor overheating faults to avoid potential safety hazards.

2.無線測溫產品介紹Introduction of Wireless Temperature Measurement Product

安科瑞在線測溫裝置適用于高低壓開關內線纜街頭，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.無線測溫系統(tǒng)特點 Features of Wireless Temperature Monitoring System

（1）無線測溫模塊安全可靠、安裝維護簡單，適合對中開關高電壓、大電流接點處進行溫度監(jiān)測，被測設備的結構不需要變動。

（2）整個無線測溫系統(tǒng)可以通過無線方式通訊，信號傳輸方便。

（3）無線測溫系統(tǒng)抗干擾能力強，對脈沖干擾、快速瞬變干擾、靜電輻射、電磁場輻射等的抗干擾能力達到國家四級標準，同時設備運行不影響中壓開關的分、合閘操作以及保護裝置的動作。

（4）應用在工業(yè)（煤礦、鋼鐵、石油、化工）、電廠、學校、醫(yī)院、市政建設、交通設施（機場、火車站）、商業(yè)建筑、會展中心、光伏發(fā)電、新能源等領域。

(1) The wireless temperature measurement module is safe and reliable, and easy to install and maintain. It is suitable for temperature monitoring at the high voltage and high current contacts of the middle switch. The structure of the device under test does not need to be changed.

(2) The entire wireless temperature measurement system can communicate wirelessly, and the signal transmission is convenient.

(3) The wireless temperature measurement system has strong anti-interference ability, and its anti-interference ability against pulse interference, fast transient interference, electrostatic radiation, electromagnetic field radiation, etc. has reached the national four-level standard, and the operation of the equipment does not affect the opening and closing of the medium voltage switch Operation and protection device actions.

(4) Application in industry (coal, steel, petroleum, chemical), power plants, schools, hospitals, municipal construction, transportation facilities (airports, railway stations), commercial buildings, convention and exhibition centers, photovoltaic power generation, new energy and other fields.

4.無線測溫解決方案 Wireless Temperature Monitoring Solution

4.1 測溫傳感器 Wireless temperature sensor

4.1.1 CT感應取電無線測溫傳感器 Wireless temperature sensor by CT sensing  

ATE400                                 

·Small size;

·Wireless transmit;

·Wireless transmission distance, 150 meters;

·Fase sampling frequency,15s;

·CT-powered, more than 5A starting current;

·Widely temperature measuring range, -40℃~125℃.

4.1.2電池供電型無線測溫傳感器 Wireless temperature sensor powered by battery

1) ATE200

·Wireless transmit;

·Wireless transmission distance, 150m;

·Fase sampling frequency, 25s;

·Battery -powered, more than 5 years;

·Widely temperature measuring range, -40℃~125℃.

ATE100

·Wireless transmit;

·Wireless transmission distance, 150m;

·Fase sampling frequency, 25s;

·Battery -powered, more than 5 years;

·Widely temperature measuring range, -40℃~125℃.

ATE100M

·Wireless transmit;

·Wireless transmission distance, 150m;

·Fase sampling frequency, 25s;

·Battery -powered, more than 5 years;

·Widely temperature measuring range, -40℃~125℃.

4.2 采集/顯示終端 Receiver/Display Unit

4.2.1 接收單元 Receiver

1)ATC600-C

·Wireless transceiver;

·Maximum measuring 240 points;

·1 RS485 serial communication, Modbus-RTU;

·2 alarm relays;

·Power supply adapt with AC/DC220V, AC/DC110V.

2)ATC450-C

·Wireless transceiver;

·Maximum measuring 60 points;

·1 RS485 serial communication, Modbus-RTU;

·Power supply adapt with DC24V

4.2.2 顯示單元 Display Unit

1) ARTM-Pn

·Wireless temperature measurement, maximum measuring 60 points;

·U, I, P, Q, f, Ep, Eq measurement；

·4 digital inputs;

·2 alarm relays;

·LCD display;

·Power supply adapt with AC220V, DC220V, DC110V, AC110V;

·1 RS485 serial communication, Modbus-RTU.

5.結構圖 Typical Connection

6.應用場景 Application

參考文獻Bibliography

1.Solutions For Enterprise Micro-grid System 2020.02