安科瑞 劉秋霞

ACREL DC energy meter Application in Bangladesh

摘要：本文介紹了安科瑞直流電表在孟加拉某能源公司的應用。主要用于光伏直流柜內，配合分流器對匯流箱的輸出電流電壓等進行測量，并采集配電現場的開關信號，裝置帶有RS485接口可以把測量和采集的數據和設備狀態上傳。

Abstract: This article introduces the application of Acrel DC meters in POWERCOM company in Bangladesh. It is mainly used in photovoltaic DC cabinets to measure the output current and voltage of the combiner box , and collect switch signals at the power distribution site. The device has an RS485 interface to upload the measured and collected data and equipment status.

1.項目概述：

Project Overview

該公司位于孟加拉，是該國較大的能源公司之一。主要使用了直流多功能電表PZ72L-DE/CKJ和分流器，用于對匯流箱的輸出電流電壓等的測量，以及對開關量狀態的采集。

Power Control&Management-POWERCOM is located in Bangladesh and is one of the largest energy companies in the country. Mainly used DC multi-function meter PZ72L-DE/CKJ and shunt, used to measure the output current and voltage of the combiner box, and collect the status of the switch.

2.PZ系列直流可編程智能電表介紹

PZ Series DC Programmable Intelligent Electric Meters

PZ系列智能直流電能表是針對直流屏、太陽能供電、電信基站、充電樁等應用場合而設計的，該系列儀表可測量直流系統中的電壓、電流、功率、正向與反向電能。既可用于本地顯示，又能與工控設備、計算機連接，組成測控系統。同時它具有多種外圍接口功能可供用戶選擇：帶有RS-485通訊接口，采用Modbus-RTU協議；可帶繼電器報警輸出、開關量輸入/輸出。根據不同要求，通過儀表面板按鍵，對變比、通訊進行設置與控制。

產品符合 Q/GDW1825-2013《直流電能表技術規范》、GB/T29318-2012《電動汽車非車載充電電能計量》、Q/GDW364-2009《單相智能電能表技術規范》等標準的相關技術要求。

PZ series intelligent DC energy meter is designed for applications such as DC panels, solar power,telecommunications base stations, and charging posts. This series of instruments can measure voltage, current, power,forward and reverse power in DC system. It can be used for local display, and connected with industrial control

equipment, computers, form a measurement and control system. And it has a variety of external excuse functions for the user to choose: RS485 communication interface, Modbus-RTU protocol, relay alarm output, digital input/output. According to different requirements, through the instrument panel keys, you can set the ratio, communication parameters.

The product meets the relevant technical requirements of the standard Q/GDW1825-2013 DC power meter specification，GB/T29318-2012 Non-vehicle charging electric energy metering for electric vehicles，Q/GDW364-2009 Single-phase energy meter

specification.

3.型號說明

Model description

Technical features

Product functions

4.安裝圖片

Installation picture

5.總結

在光伏系統中，發電系統的安全性至關重要，PZ系列儀表作為一種先進的智能化、數字化的前端采集元件，已廣泛應用于直流屏、太陽能供電、電信基站、充電樁等場合。可以實現對發電回路的電參量的實時監控，不僅能顯示回路發電狀況，還具有網絡通訊功能，可以與串口服務器、計算機等組成電力監控系統。系統實現對采集數據的分析、處理，實時顯示光伏系統的運行狀態，為項目解決用電問題提供了真實可靠的依據，取得了較好的企業效益。In photovoltaic systems, the safety of the power generation system is very important. As an advanced intelligent and digital front-end collection component, PZ series meters have been widely used in DC screens, solar power supply, telecommunication base stations, charging piles and other occasions. It can realize real-time monitoring of the electrical parameters of the power generation loop, not only can display the power generation status of the loop, but also has a network communication function, and can form a power monitoring system with a serial server, a computer, etc. The system realizes the analysis and processing of the collected data, displays the operating status of the photovoltaic system in real time, provides a true and reliable basis for the project to solve the electricity problem, and has achieved good corporate benefits.

參考文獻；Bibliography

1. Solutions for enterprise micro-grid system