安科(kē)瑞  陳(chén)聰 周潔

摘要：本文(wén)介(jiè)紹了安科瑞(ruì)DJSF1352-RN直(zhí)流電表(biǎo)在(zài)沙特小型(xíng)光(guāng)伏發電設(shè)施直(zhí)流(liú)側(cè)的應(yīng)用(yòng)。主(zhǔ)要用於光(guāng)伏(fú)係(xì)統(tǒng)中的(dí)電(diàn)流的計量，通過分(fēn)流(liú)器對(duì)電(diàn)路(lù)係統(tǒng)進行計量，通(tōng)訊和控製等。

  Abstract: This paper introduces the application of Acrel DJSF1352-RN DC energy meter in the DC side of a photovoltaic system in Saudi Arabia. It is mainly used to measure the DC current in the photovoltaic system, and cooperate with current shunts to measure, communicate and control the circuit system.

  1.項(xiàng)目概述(shù)：Project Overview

  該公(gōng)司位(wèi)於沙(shā)特，公(gōng)司主(zhǔ)要在當(dāng)地從事小型(xíng)光伏發(fā)電項目的(dí)安(ān)裝(zhuāng)施工與(yǔ)維護等業務。客戶想要使用(yòng)直(zhí)流(liú)電(diàn)表，用於(yú)光(guāng)伏係統中(zhōng)直流側電流(liú)電(diàn)壓(yā)的(dí)監測計量(liáng)，通訊(xùn)，要(yào)求電表(biǎo)具有兩路直流電能測量(liáng)的(dí)功(gōng)能。

  The company is located in Saudi Arabia. The company is mainly engaged in installation, construction and maintenance of small photovoltaic power generation center projects in Bulgaria and surrounding countries. The customer wants to use DC meters and hall sensors or current shunts for monitoring, metering and communication of current and voltage at the DC side of photovoltaic system, and demands that the DC energy meter would be able to measure two channels of DC circuits.

  2.DJSF1352-RN/D儀(yí)表簡(jiǎn)介 DJSF1352-RN/D DC Energy Meters

  DJSF1352-RN導軌(guǐ)式直流電能表帶(dài)有雙路直(zhí)流輸入(rù)，主(zhǔ)要針(zhēn)對網絡基站(zhàn)，直流(liú)充電(diàn)樁，太陽能(néng)光(guāng)伏(fú)等(děng)應用(yòng)場(cháng)合(hé)而設(shè)計，該係列儀(yí)表可測量直流係(xì)統中的(dí)電(diàn)壓，電流(liú)，功(gōng)率以(yǐ)及正反(fǎn)向電能(néng)等(děng)。在實際(jì)使(shǐ)用(yòng)現(xiàn)場，即(jí)可計量總電(diàn)能，又(yòu)可計(jì)量規定(dìng)時間段(duàn)內(nèi)的電能。檢測的結(jié)果既(jì)可用於本(běn)地顯(xiǎn)示，又能與工控設備(bèi)，計(jì)算機(jī)連接，組成測控係統(tǒng)。

  儀表可具(jù)有紅外(wài)通訊接(jiē)口和RS-485通訊接口(kǒu)，同(tóng)時支(zhī)持(chí)Modbus-RTU協(xié)議(yì)和(hé)DLT645-97(07)協議(yì)；可帶(dài)繼電器(qì)預警輸(shū)出(chū)和開關量(liáng)輸入功(gōng)能；根(gēn)據不同(tóng)要求(qiú)，通過儀表(biǎo)麵(miàn)板(bǎn)按(àn)鍵，對變(biàn)比(bǐ)，預警，通訊進(jìn)行(háng)設(shè)置；具(jù)有(yǒu)開關量事件記(jì)錄（Modbus協議(yì)），編程(chéng)和(hé)事件(jiàn)設(shè)置(zhì)記錄（645協(xié)議(yì)），數(shù)據(jù)瞬時(shí)和定(dìng)時(shí)凍結功能(néng)（645協(xié)議(yì)），電壓(yā)電流功率峰值，穀值記錄功能。

  DJSF1352-RN rail-mounted DC power meter with double DC input channels, designed for telecommunications base stations, DC charging piles, solar photovoltaic and other applications, this series of meters can measure the voltage, current, power and forward and reverse energy and so on in the DC system.The actual use of the site, you can measure the total power, but also measure the energy within a specified period of time. The test results can be used for local display, but also with industrial control equipment, computers to form a measurement and control system.

  The meter can have infrared communication interface and RS-485 communication interface, and supports Modbus-RTU protocol and DLT645-97 (07) protocol at the same time.The meter can have relay alarm output and digital input function;You can set the ratio, alarm, and communication through the meter panel keys according to different requirements.The meter can have event recording of switch (Modbus protocol), programming and event setting records (645 protocol), instantaneous and timing freeze function of data (645 protocol), maximum and minimum value recording function of voltage and current power.

  3.型號(hào)及功(gōng)能(néng)介紹 Type and Function Description

  Note：when dual DC input（D）function is selected，if Hall current sensor input is used in

  current channel,a power supply module shall be provided to supply power to the second Hall sensor;if D function is not provided,the built-in power supply of elecctric meter can be used.

  Pulse constant:

  4.客(kè)戶特殊需求Requirements from Customer

  4.1 以下(xià)是(shì)客(kè)戶現(xiàn)場太(tài)陽能(néng)電板參(cān)數：

  The following are the customer's on-site solar panel parameters:

  4.2 兩路(lù)直(zhí)流(liú)電能計量(liáng)

  客(kè)戶要求直(zhí)流表(biǎo)具(jù)有兩路(lù)直(zhí)流電能計(jì)量功(gōng)能，因(yīn)此(cǐ)需要搭(dā)配兩(liǎng)個(gè)分(fēn)流器。

  The customer requires a DC meter with two channels of direct current metering function, so two current shunts are needed to work with the meter.

  6.安裝圖片Installation Picture

  參(cān)考文獻 Bibliography

  1.Solutions For Enterprise Micro-grid System 2021.04