摘要:本文介绍了安科瑞DJSF1352-RN直流电表在沙特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,通过分流器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 Saudi Arabia. It is mainly used to measure the DC current in the photovoltaic system, and cooperate with current shunts to measure, communicate and control the circuit system.
1.项目概述:Project Overview
该公司位于沙特,公司主要在当地从事小型光伏发电项目的安装施工与维护等业务。客户想要使用直流电表,用于光伏系统中直流侧电流电压的监测计量、通讯,要求电表具有两路直流电能测量的功能。
The company is located in Saudi Arabia. The company is mainly engaged in installation, construction and maintenance of small photovoltaic power generation center projects in Bulgaria and surrounding countries. The customer wants to use DC meters and hall sensors or current shunts for monitoring, metering and communication of current and voltage at the DC side of photovoltaic system, and demands that the DC energy meter would be able to measure two channels of DC circuits.
2.DJSF1352-RN/D仪表简介 DJSF1352-RN/D DC Energy Meters
DJSF1352-RN导轨式直流电能表带有双路直流输入,主要针对网络基站、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;可带继电器预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、预警、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)、电压电流功率峰值、谷值记录功能。
DJSF1352-RN rail-mounted DC power meter with double DC input channels, 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), maximum and minimum value recording function of voltage and current power.
3.型号及功能介绍 Type and Function Description
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 elecctric meter can be used.
Pulse constant:
4.客户特殊需求Requirements from Customer
4.1 以下是客户现场太阳能电板参数:
The following are the customer's on-site solar panel parameters:
4.2 两路直流电能计量
客户要求直流表具有两路直流电能计量功能,因此需要搭配两个分流器。
The customer requires a DC meter with two channels of direct current metering function, so two current shunts are needed to work with the meter.
参考文献 Bibliography
1.Solutions For Enterprise Micro-grid System 2021.04
词条
词条说明
电弧光保护原理电弧光保护,它的动作判断据为故障时产生的两个条件,即弧光和电流增量。当同时检测到弧光和电流增量时系统发出跳闸指令,当仅检测到弧光或者电流增量时发出报警信号,而不会发出跳闸指令。电弧光保护系统组成电弧光保护系统由主单元、电流单元、传感器单元、弧光传感器以及连接电缆组成。弧光传感器可放置在开关设备的任何位置(一般安装在母线室内,以检测母线故障),根据弧光传感器的实际物理位置可实现保护分区
ASD系列开关柜综合测控装置产品概述ASD适用于电网3~35kV系统中柜、手车柜、固定柜、环网柜等开关柜可替代传统二次元件,如带电显示器、温湿度控制器、开关位置信号灯、控制开关(按钮)、模拟卡、电气测试仪器等,使开关柜盘面整洁美观,调试维护方便。广泛应用于电厂、电力系统配电网、工厂、矿山、建筑等领域。国家标准和行业标准GB/T 17626.2-2018 电磁兼容性试验和测量技术GB/T 17626
【水电气智能远传集抄监控系统】水电气三表集抄系统都有什么特点
◆安装简单,抄控方便,运行可靠。◆**低功耗,内置大容量锂电池,可连续工作六年以上,确保产品的长时间使用。◆自动警示用户剩余水量,避免未缴费停水的尴尬局面。◆电动陶瓷阀全新设计,适应任何水质条件下的使用。◆采用国标优选尺寸,*改动管道,就可更换旧表。功能◆自动采集、保存读数。◆通过总线或网络抄表及读取数据。◆设置灵活:“阀控远传表”可实现预付费和阶梯水价,也可定额用水后自动关阀,收费后自动开阀。◆
电流变送器应用领域电流变送器在单片机控制的许多应用场合,都要使用变送器来将单片机不能直接测量的信号转换成单片机可以处理的电模拟信号,如电流变送器,压力变送器、温度变送器、流量变送器等。早期的变送器大多为电压输出型,即将测量信号转换为0-5V电压输出,这是运放直接输出,信号功率<0.05W,通过模拟/数字转换电路转换数字信号供单片机读取、控制。是将液位传感器里的下部的水和上部蒸汽的冷凝水通过仪
公司名: 江苏安科瑞电器制造有限公司
联系人: 陈经理
电 话:
手 机: 18860990285
微 信: 18860990285
地 址: 江苏无锡江阴市江苏江阴南闸东盟工业园东盟路5号
邮 编:
网 址: jhcj.cn.b2b168.com
公司名: 江苏安科瑞电器制造有限公司
联系人: 陈经理
手 机: 18860990285
电 话:
地 址: 江苏无锡江阴市江苏江阴南闸东盟工业园东盟路5号
邮 编:
网 址: jhcj.cn.b2b168.com