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　　變電所電纜無線測溫傳感器Circuit design and dual power management technology

　　The wireless temperature measurement and early warning system of high-voltage substation adopts dual-power management technology to manage the intelligent temperature sensor and the wireless transceiver module respectively, which can reduce the power consumption and improve the service life of the sensor. Due to the small working current of temperature sensor, ultra-low power single-chip microcomputer and peripheral circuit, 3.6V, 3000mA battery is mainly used for power supply in the circuit design process. The large continuous discharge current and large pulse discharge current of the battery can reach 150mA and 300mA respectively. Calculated according to 80 battery utilization rate, Life expectancy can reach more than two years. Through the control of single chip microcomputer to the current do not need to work on the parts of power protection, effectively improve the utilization rate of electricity. In addition, in order to effectively prolong the service life of the wireless temperature measurement early warning system in high-voltage substation, under the premise of meeting the operating frequency of equipment, a smaller working frequency can be selected to reduce the power consumption of the single-chip microcomputer. Moreover, energy consumption should also be emphasized in the design of peripheral circuits and equipment selection.

　　產品簡介

　　功能：

　　ARTM-Pn無線測溫裝置:ARTM-Pn無線測溫裝置可以單獨安裝在高壓柜、低壓抽屜柜內，每臺裝置可以接收18個傳感器的數據，傳感器型號可選配ATE100、ATE200、ATE300。裝置帶有一路485接口，可將采集到的溫度數據上傳到監控中心。

　　ARTM8溫度巡檢儀:ARTM系列溫度巡檢測控儀適用于一路或多路溫度的測量和控制，主要應用于火電廠、水電站等場合的溫度巡檢測量及控制。測量8通道Pt100溫度，也可以屏蔽其中任意通道。每一通道溫度測量對應2段報警，繼電器輸出可以任意設置報警方向及報警值。

　　無線測溫集中采集觸摸屏:無線測溫觸摸屏可以嵌入式安裝在高壓柜、低壓抽屜柜內，每臺裝置可以接收240個傳感器的數據，可與ATE100、ATE200、ATE300三種傳感器選配使用。裝置帶有一路485接口、可選配一路以太網口，可將采集到的溫度數據上傳到監控中心。

　　應用范圍：

　　適用于高低壓開關柜內電纜接頭、斷路器觸頭、刀閘開關、高壓電纜中間頭、干式變壓器、低壓大電流等設備的溫度監測。

　　訂貨范例：

　　技術要求：1面高壓柜內斷路器觸頭6點、母排3點無源無線測溫

　　輔助電源：AC/DC 220V

　　顯示方式：單獨無線溫度顯示

　　綜上所述，確定型號為：無線測溫裝置：ARTM-P9-300,1臺;無線測溫傳感器：ATE300,9個

　　訂貨范例：

　　技術要求：10面高壓柜內斷路器觸頭6點、母排3點無線測溫

　　無線傳感器要求：電池供電、無線

　　顯示方式：集中無線溫度顯示

　　綜上所述，確定型號為:無線測溫集中觸摸屏：AARTM-7062HT-4(HI),1臺；無線測溫傳感器：ATE200,90個；無線測溫收發器：ATC200,10個

　　訂貨范例：

　　技術要求：10面高壓柜內斷路器觸頭6點、母排3點無線測溫

　　無線傳感器要求：無源無線

　　顯示方式：集中無線溫度顯示

　　綜上所述，確定型號為：無線測溫集中觸摸屏：ARTM-7062HT-4(HI),1臺；無線測溫傳感器：ATE300,90個；無線測溫收發器：ATC400,1個；電源模塊：ARTM-KDYA-DG30-24K，1個。

　　技術指標

　　產品功能

　　外形尺寸

　　產品報價

　　In the long-term operation process of high-voltage equipment, the temperature of many parts will rise sharply. For example, poor contact of switchgear contacts will lead to temperature rise and even burn, resulting in power outage accidents. Therefore, it is necessary to monitor the temperature of high voltage switchgear on line. The cT-BASED wireless temperature system does not need frequent battery replacement, which improves the reliability and practicability of the system. At the same time, this paper introduces how to realize the low power consumption of wireless temperature measurement system through software and hardware, and satisfy the use of small current of bus, and proves the practicability of this technology in practical application. Key words: CT power retrieval; High voltage equipment; Wireless temperature measurement; Low power consumption

　　變電所電纜無線測溫傳感器