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

援贊比亞恩多拉體育場是一座能容納4萬人的體育場。體育場位于恩多拉市市郊A3公路旁，總占地面積203300平方米，總建筑面積452080平方米，地上4層，建筑高度55.80米。共27臺低壓配電柜，116個配電回路。

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 系統(tǒng)方案

援贊比亞恩多拉體育場電力監(jiān)控系統(tǒng)為Acrel-2000型。本系統(tǒng)涉及回路共112個，配電柜上安裝的儀表為安科瑞ACR系列及PZ系列多功能電力儀表。

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.

根據(jù)設(shè)計意圖和實際情況，本電力監(jiān)控系統(tǒng)為三層結(jié)構(gòu)，現(xiàn)場設(shè)備層由安裝在低壓配電柜上的多功能儀表組成，經(jīng)由RS485總線上傳數(shù)據(jù)。通訊管理層由通訊機柜內(nèi)的通訊服務(wù)器、光電轉(zhuǎn)換器和工業(yè)以太網(wǎng)交換機等設(shè)備組成，其功能是連接現(xiàn)場設(shè)備層和站控管理層。站控管理層設(shè)備（監(jiān)控主機、UPS電源、顯示器等）均安裝在監(jiān)控室的通訊采集箱內(nèi)。

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.

低壓配電系統(tǒng)的進線回路電參量采集采用ACR330ELH電能表，它能測量所有常規(guī)電力參數(shù)，如三相電壓、電流、有功功率、無功功率、功率因數(shù)、頻率、有功電度、無功電度，并可監(jiān)測電壓、電流的2-31次諧波分量、電流電壓不平衡度等多種電網(wǎng)質(zhì)量參數(shù)。本儀表帶有4路光電隔離開關(guān)量輸入接點，這些接點可以配合智能斷路器實現(xiàn)回路的遙信開關(guān)量監(jiān)測。該系列網(wǎng)絡(luò)電力儀表主要應(yīng)用于變電站自動化、配電網(wǎng)自動化、小區(qū)電力監(jiān)控、工業(yè)自動化、能源管理系統(tǒng)及智能建筑等領(lǐng)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系列電力儀表，該儀表主要完成三相電流的測量以及開關(guān)信號的檢測。演出與商鋪回路設(shè)計使用ACR120EL系列儀表，在三相電流和開關(guān)信號檢測的基礎(chǔ)上，加上所有常規(guī)電力參數(shù)測量和電能計量的功能。

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 相關(guān)產(chǎn)品

4 項目小結(jié)Project Summary

在當今配電設(shè)施的應(yīng)用中，配電安全性至關(guān)重要，本文介紹的Acrel-2000電力監(jiān)控系統(tǒng)在恩多拉體育場的應(yīng)用，可以實現(xiàn)對配電所供配電回路用電的實時監(jiān)控，不僅能顯示回路用電狀況，還具有網(wǎng)絡(luò)通訊功能，可以與通訊管理機、計算機等組成電力監(jiān)控系統(tǒng)。系統(tǒng)實現(xiàn)對采集數(shù)據(jù)的分析、處理，實時顯示配電所內(nèi)各配電回路的運行狀態(tài)，對分合閘、負載越限具有彈出報警對話框、語音提示、短信報警燈，并生成各種電能報表、分析曲線、圖形等，便于電能的遠程抄表以及分析、研究，該系統(tǒng)運行安全、可靠、穩(wěn)定，為大型公建解決用電問題提供了真實可靠的依據(jù)。

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 現(xiàn)場圖片 Photos on site

參考文獻Bibliography

1.Solutions For Enterprise Micro-grid System 2020.02

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安科瑞電力監(jiān)控系統(tǒng)在援贊比亞恩多拉體育場的應(yīng)用

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