Scope of application
导轨式电能表 3 phase 4 wire and 3 phase 3 wire electronic rail electric energy meter (hereinafter referred to as “instrument”) is the use of large-scale integrated circuits, the application of digital sampling technology, is designed for the power system, communication industry, construction industry and other power monitoring and power metering needs, mainly for the electrical circuit in the three-phase voltage, three-phase current, active power, reactive power, frequency, forward and reverse electric energy, four-quadrant electric energy and other parameters for real-time measurement and display, using standard DIN35mm Din rail mounting; As a monitoring terminal product of energy management system, it can be widely used in internal power assessment and monitoring of industrial and mining enterprises, hotels, schools and large public buildings.
电能表的性能指标符合以下相关技术标准：
GB/T 17215.211-2021
GB/T 17215.321-2021 电气测量设备（交流）特殊要求 第 21 部分：静态有功电能表（A 类、B 类、C 类）
GB/T 17215.323-2008 交流测量设备的特殊要求 第 23 部分：静态无功电能表（2 级和 3 级）
DL/T 645-2007 《多功能电能表通信协议》 MODUS-RTU 标准协议
产品特点
产品的主要功能包括：三相电压、三相电流、有功功率、无功功率、功率、功率因数、频率、有功电能计量、无功电能计量、需求统计复费率（可选）、谐波分析（可选）。
它有 RS485 通信端口，支持标准 ModBus 协议或 DL/T 645-2007 协议。
它可支持外部控制功能，最多可支持 2 个继电器输出端
DIN35mm 标准导轨安装，模块化结构设计，体积小，易于安装；
Din rail type energy meter Model description
Din rail type energy mete of size
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