Application of Acrel Power Monitoring System in Ndola Stadium,Zambia

摘要：体育场弱电系统由11个子系统组成。其中，作为体育场弱电子系统之一，电力监控系统的功能是平时单机运行，赛事举办期间和消防系统、智能照明系统联动，保障场馆在承办比赛期间的用电稳定性和安全性。

关键词：系统集成；智能电力仪表；电力监控系统；用电安全

Abstract：The stadium weak electricity system consists of 11 subsystems. Among them, as one of the stadium's weak electricity system, the function of the power monitoring system is to operate usually as a stand-alone machine, which is linked with the fire protection system and the smart lighting system to ensure the stability and safety of the stadium during the event.

Keywords：System integration；Intelligent power meter；Power monitoring system；Electrical safety

1 概述 Project Overview

援赞比亚恩多拉体育场是一座能容纳4万人的体育场。体育场位于恩多拉市市郊A3公路旁，总占地面积203300平方米，总建筑面积452080平方米，地上4层，建筑高度55.80米。共27台低压配电柜，116个配电回路。

Aid Zambia’s Ndola Stadium is a national stadium that can accommodate 40,000 people. The stadium is located next to the A3 highway in the suburbs of Ndola. It covers a total area of 203,300 square meters, with a total construction area of 452,080 square meters, 4 floors above the ground, and a building height of 55.80 meters. It has a total of 27 low-voltage power distribution cabinets and 116 power distribution circuits.

2 系统方案

援赞比亚恩多拉体育场电力监控系统为Acrel-2000型。本系统涉及回路共112个，配电柜上安装的仪表为安科瑞ACR系列及PZ系列多功能电力仪表。

The Acrel-2000 power monitoring system was used to aid the Ndola Stadium in Zambia. The system involves a total of 112 circuits, and the meters installed on the power distribution cabinet are ACR series and PZ series multifunctional power meters.

根据设计意图和实际情况，本电力监控系统为三层结构，现场设备层由安装在低压配电柜上的多功能仪表组成，经由RS485总线上传数据。通讯管理层由通讯机柜内的通讯服务器、光电转换器和工业以太网交换机等设备组成，其功能是连接现场设备层和站控管理层。站控管理层设备（监控主机、UPS电源、显示器等）均安装在监控室的通讯采集箱内。

According to the design intent and actual situation, the power monitoring system has a three-layer structure. The field equipment layer is composed of multi-function meters installed on the low-voltage power distribution cabinet, and data is uploaded via the RS485 bus. The communication management layer is composed of communication servers, photoelectric converters, and industrial Ethernet switches in the communication cabinet, and its function is to connect the field device layer and the station control management layer. The station control management layer equipment (monitoring host, UPS power supply, display, etc.) are installed in the communication collection box of the monitoring room.

低压配电系统的进线回路电参量采集采用ACR330ELH电能表，它能测量所有常规电力参数，如三相电压、电流、有功功率、无功功率、功率因数、频率、有功电度、无功电度，并可监测电压、电流的2-31次谐波分量、电流电压不平衡度等多种电网质量参数。本仪表带有4路光电隔离开关量输入接点，这些接点可以配合智能断路器实现回路的遥信开关量监测。该系列网络电力仪表主要应用于变电站自动化、配电网自动化、小区电力监控、工业自动化、能源管理系统及智能建筑等领域。

The electrical parameter collection of the incoming loop of the low-voltage power distribution system adopts the ACR330ELH power meter, which can measure all conventional power parameters, such as three-phase voltage, current, active power, reactive power, power factor, frequency, active energy, and it can monitor various power grid quality parameters such as voltage and current 2-31 harmonic components, current and voltage unbalance degree.This instrument has 4 photoelectric isolation switch input contacts, these contacts can cooperate with the intelligent circuit breaker to realize the remote signal switch monitoring of the circuit.This series of network power meters are mainly used in substation automation, distribution network automation, residential power monitoring, industrial automation, energy management systems, and intelligent buildings.

配出回路采用PZ80L系列电力仪表，该仪表主要完成三相电流的测量以及开关信号的检测。演出与商铺回路设计使用ACR120EL系列仪表，在三相电流和开关信号检测的基础上，加上所有常规电力参数测量和电能计量的功能。

The output circuit adopts the PZ80L series power meter, which mainly completes the measurement of the three-phase current and the detection of the switch signal. The circuit design for performances and shops uses the ACR120EL series of meters, based on the detection of three-phase current and switching signals, plus all conventional power parameter measurement and energy metering functions.

3 相关产品

4 项目小结Project Summary

在当今配电设施的应用中，配电安全性至关重要，本文介绍的Acrel-2000电力监控系统在恩多拉体育场的应用，可以实现对配电所供配电回路用电的实时监控，不仅能显示回路用电状况，还具有网络通讯功能，可以与通讯管理机、计算机等组成电力监控系统。系统实现对采集数据的分析、处理，实时显示配电所内各配电回路的运行状态，对分合闸、负载越限具有弹出报警对话框、语音提示、短信报警灯，并生成各种电能报表、分析曲线、图形等，便于电能的远程抄表以及分析、研究，该系统运行安全、可靠、稳定，为大型公建解决用电问题提供了真实可靠的依据。

In the application of today's power distribution facilities, power distribution safety is of paramount importance. The Acrel-2000 power monitoring system described in this article is used in Ndola Stadium. It can realize the real-time monitoring of the power consumption of the power supply and distribution circuit of the power distribution station, not only can display the power consumption of the circuit, but also has the network communication function, and can form a power monitoring system with the communication management machine and computer.

The system analyzes and processes the collected data and displays the operating status of each power distribution loop in real time.It has a pop-up alarm dialog box, voice prompt, SMS alarm light, and generates various electric energy reports, analysis curves, graphics, etc. It is convenient for remote meter reading, analysis and research of electric energy. The system is safe, reliable and stable in operation, and provides a true and reliable basis for large-scale public buildings to solve electricity problems.

5 现场图片 Photos on site

参考文献Bibliography

1.Solutions For Enterprise Micro-grid System 2020.02