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摘要：用户侧配电系统的智能化、精细化、可视化是当下配电管理的必然趋势。针对用户侧的配电进线回路，设计安装智能仪表，再通过设置仪表参数来实时监控各负载回路的工作状态；提高用能安全、提升设备维护效率、降低维护的人工成本、实现了配电系统监控的无人值守。通过数据的采集，对电参量的实时监测，分析负载侧用电质量以及配电系统的运行状态，为用户节约电力维护成本。现就冰岛Tandraberg公司电机监控改造加装我司电流表及频率表做一简要介绍。
Abstract: The intelligence, refinement and visualization of the distribution system are the trend of distribution management. The smart power meter is designed and installed for the power distribution circuit , in order to real time monitor the working state of each load circuit by setting the parameters of the smart meter. It can improve the safety of energy usage, improve the efficiency of equipment maintenance, reduce labor cost of maintenance, and realize the unattended monitoring of distribution system. Through data collection, real-time monitoring of electrical parameters, analysis of the power quality and distribution system running status, it will save users’ power maintenance costs. This article gives a brief introduction of Acrel PZ ammeter and frequency meter used in Iceland Tandraberg ehf company's motor monitoring project.
1.项目概述：
Project Overview
Tandraberg ehf公司位于冰岛Eskifjörður，是该国较大的冷冻托盘厂家之一，该公司的生产用电大多为电机负载，用于工艺切割。由于原电机控制柜未加电力仪表，且变频器工作状况不了解，不知道电机的运行状况，故采购我司PZ系列三相电流表用于电机电流监控以及频率表用于监测回路频率变化.
Tandraberg ehf company, located in Eskifjörður, is one of the largest manufacturers of refrigerated pallets in Iceland, Its main production electricity is motor load, which is used for process cutting. Since the original motor control cabinet doesn’t install with power measuring instrument, and the working condition of Variable-frequency Drive and moter are unknow. Therefore, they purchased Acrel PZ series three-phase ammeter for motor current monitoring and frequency meter for monitoring frequency change.
2.PZ系列可编程智能电测仪表介绍
PZ Series Programmable Intelligent Electric Meters
PZ系列仪表采用交流采样技术，可测量电网中的电流、电压、功率、功率因数和电能参数。它可通过面板按键设备电力参数。该仪表具有RS-485通讯接口，采用Modbus协议；也可以将电源信号转换成标准的直流模拟信号信号。该仪表还具有开关输入/输出、继电器/报警输出等。
PZ series of meters adopt AC sampling technology,which can separately measure the current, voltage, power, power factor and electric energy parameters in the grid .It can set the electrical parameter through the panel button.This meter has RS-485 communication interface,adopt Modbus protocol;also can convert the power signal into a standard DC analog signal.The meter also has switch input/output,relay/alarm output,etc.
3.型号说明
Model description
Technical features
4.安装图片
Installation picture
5.总结
PZ系列仪表具有较高的性能价格比，可以直接取代常规电力变送器及测量仪表。作为一种先进的智能化、数字化的前端采集元件，该电力仪表已广泛应用于各种控制系统,SCADA 系统和能源管理系统中。
PZ series power meter have high price performance, which can replace power transmitter and other measuring instrument. As an advanced intelligent and digital acquisition device, the power meter has been widely used in various control systems, SCADA systems and energy management systems.
参考文献；Bibliography
1. Solutions for enterprise micro-grid system
安科瑞 缪阳扬
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