简婷安科瑞电力工程股东受限集团公司 东莞嘉定  201801

内容提要：本文介绍了安科瑞DJSF1352-RN直流电表在尼日利亚小型光伏发电设施直流侧的应用。主要用于光伏系统中的电流的计量，通过霍尔对电路系统进行计量、通讯和控制等。

Abstract: This paper introduces the application of Acrel DJSF1352-RN DC energy meter in the DC side of a photovoltaic system in Nigeria. It is mainly used to measure the DC current in the photovoltaic system, and cooperate with hall current sensor to measure, communicate and control the circuit system.

01 工作概括

      该新企业应代替尼日利亚，就是一家新新能源汽车新企业。首要在南美洲做太阳能光伏太阳能电站顶目。企业客户要动用整流电表，代替太阳能光伏太阳能系统性中整流侧的监测站压力容器检验。

      The company is located in Nigeria and is a new energy company. Mainly engaged in photovoltaic power generation projects in Africa. The customer wants to use DC meters and hall sensors for monitor  current and voltage at the DC side of photovoltaic system.

02 DJSF1352-RN介绍

      DJSF1352-RN导轨式直流电能表，主要针对电信基站、直流充电桩、太阳能光伏等应用场合而设计，该系列仪表可测量直流系统中的电压、电流、功率以及正反向电能等。在实际使用现场，即可计量总电能，又可计量规定时间段内的电能。检测的结果既可用于本地显示，又能与工控设备、计算机连接，组成测控系统。

      仪表可具有红外通讯接口和RS-485通讯接口，同时支持Modbus-RTU协议和DLT645-97(07)协议；可带继电器报警输出和开关量输入功能；根据不同要求，通过仪表面板按键，对变比、报警、通讯进行设置；具有开关量事件记录（Modbus协议）、编程和事件设置记录（645协议）、数据瞬时和定时冻结功能（645协议）、电压电流功率值记录功能。

      DJSF1352-RN rail-mounted DC power meter designed for telecommunications base stations, DC charging piles, solar photovoltaic and other applications, this series of meters can measure the voltage, current, power and forward and reverse energy and so on in the DC system.The actual use of the site, you can measure the total power, but also measure the energy within a specified period of time. The test results can be used for local display, but also with industrial control equipment, computers to form a measurement and control system.

      The meter can have infrared communication interface and RS-485 communication interface, and supports Modbus-RTU protocol and DLT645-97 (07) protocol at the same time.The meter can have relay alarm output and digital input function;You can set the ratio, alarm, and communication through the meter panel keys according to different requirements.The meter can have event recording of switch (Modbus protocol), programming and event setting records (645 protocol), instantaneous and timing freeze function of data (645 protocol), value recording function of voltage and current power.

03 型号及功能介绍

      Note：when dual DC input（D）function is selected，if Hall current sensor input is used in current channel,a power supply module shall be provided to supply power to the second Hall sensor;if D function is not provided,the built-in power supply of electric meter can be used.

04 开口式霍尔电流传感器

05 客户要求 

      顾客下有个地球能相溶和动力装置。PV板，锂电池微电网与柴油发动机再次等离子发生器电信宽带网站，这三者之间的接触到同种根母线。顾客想要电流大小大小智能仪表来污染监测母线的电流大小大小输出功率。自己的地球能装置是电信宽带网移动信号塔，配套电是DC48V，电流大小大小是DC100A。

      The customer have a solar hybrid system. PV panel, battery storage and diesel generator for a telecom station，All the 3 systems are connected to a single bus bar. They wants to know the watt hour reading from the bus bar using a DC meter. And their solar site is a telecom site. the power supply voltage is DC 48V, the current is DC100A.

作者简介：简婷，女，本科，现就职于安科瑞电气股份有限公司，主要研究方向为建筑能耗监测系统。