安科瑞DJSF1352-RN直流電表在尼日利亞太陽能混合動力系統的應用

來源：江蘇安科瑞電器制造有限公司 2021年12月08日 09:21

安科瑞師晴晴

江蘇安科瑞電器制造有限公司江蘇江陰

摘要：本文介紹了安科瑞DJSF1352-RN直流電表在尼日利亞小型光伏發電設施直流側的應用。主要用于光伏系統中的電流的計量，通過霍爾對電路系統進行計量、通訊和控制等。

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

1.項目概述：Project Overview

該公司位于尼日利亞，是一家新能源公司。主要在非洲從事光伏發電項目。客戶要使用直流電表，用于光伏系統中直流側的監測計量。

The company is located in Nigeria and is a new energy company. Mainly engaged in photovoltaic power generation projects in Africa. The customer wants to use DC meters and hall sensors for monitor current and voltage at the DC side of photovoltaic system.

2.DJSF1352-RN介紹 DJSF1352-RN DC Energy Meters

DJSF1352-RN導軌式直流電能表，主要針對電信基站、直流充電樁、太陽能光伏等應用場合而設計，該系列儀表可測量直流系統中的電壓、電流、功率以及正反向電能等。在實際使用現場，即可計量總電能，又可計量規定時間段內的電能。檢測的結果既可用于本地顯示，又能與工控設備、計算機連接，組成測控系統。

儀表可具有紅外通訊接口和RS-485通訊接口，同時支持Modbus-RTU協議和DLT645-97(07)協議；可帶繼電器報警輸出和開關量輸入功能；根據不同要求，通過儀表面板按鍵，對變比、報警、通訊進行設置；具有開關量事件記錄（Modbus協議）、編程和事件設置記錄（645協議）、數據瞬時和定時凍結功能（645協議）、電壓電流功率值記錄功能。

DJSF1352-RN rail-mounted DC power meter 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), value recording function of voltage and current power.

3.型號及功能介紹 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 electric meter can be used.

Technical parameters			Index
Input	Nominal value		Voltage input range	Current input
			DC 0-1000V	Hall sensor：0-20mA、4-20mA、0-5V，0-10V and so on.

	Overload		1.2 times rated (continuous); 2 times rated/1 second;
	Power consumption		Voltage: ≤0.2VA, current ≤0.1VA
Accuracy class			Class 1
Function	Display		8-bit segment LCD screen (LCD)
	Communication Interface		RS485（two options）
	Communication protocol		Modbus-RTU，DL/T 645-2007
	Switch		Switch output		2 Relay outputs, 2A/30VDC or 2A/250VAC
			Switch input		2 dry contact inputs
	Pulse output		A second pulse output, a energy pulse output
			See the SYS->PLUS display in the meter menu settings. For example: The meter displays 100, which is 100imp/kWh
Power Supply	Voltage range		AC/DC 85-265V or DC24V(±10%) or DC48V(±10%)
	Power consumption		≤ 3W
Power frequency withstand voltage			Power supply // Voltage input // Current input // Relay output and switch input // Communication interface / / Pulse output 3kV/1min Power supply // Relay output // Voltage input // Current input 3kV/1min Pulse output // Communication interface // Switch input 2kV/1min
Impulse withstand voltage			±6KV
Insulation resistance			≥ 40M ?
Average barrier-free working hours			≥50000h
Environment		Temperature	Normal operating temperature: -25 °C ~ +65 °C; Limit working temperature: -40 °C ~ +70 °C; Storage temperature: -40℃～+80℃
		Humidity	≤93%RH, no condensation, no corrosive gas
		Altitude	≤2500m

4.開口式霍爾電流傳感器Split Core Hall Current Transformer

Type	Rated current	Rated output	Measuring Aperture	Power Supply
AHKC-EKA	0-(50-500)A	5V/4V	Φ20mm	±15V
AHKC-EKAA	DC 0-(50-500)A	4-20mA	Φ20mm	12V/24V
AHKC-EKDA	AC 0-(50-500)A	4-20mA	Φ20mm	12V/24V
AHKC-EKB	0-(200-1000)A	5V/4V	Φ40mm	±15V
AHKC-EKBA	DC 0-(200-1000)A	4-20mA	Φ40mm	12V/24V
AHKC-EKBDA	AC 0-(200-1000)A	4-20mA	Φ40mm	12V/24V
AHKC-EKC	0-(500-1500)A	5V/4V	Φ55mm	±15V
AHKC-EKCA	DC 0-(500-1500)A	4-20mA	Φ55mm	12V/24V
AHKC-EKCDA	AC 0-(500-1500)A	4-20mA	Φ55mm	12V/24V
AHKC-K	0-(400-2000)A	5V/4V	64*16mm	±15V
AHKC-KAA	DC 0-(400-2000)A	4-20mA	64*16mm	12V/24V
AHKC-KDA	AC 0-(400-2000)A	4-20mA	64*16mm	12V/24V
AHKC-H	0-(500-3000)A	5V/4V	82*32	±15V
AHKC-KA	0-(500-5000)A	5V/4V	104*36	±15V
AHKC-HB	0-(2000-8000)A	5V/4V	132*52	±15V
	0-(10000-20000)A	5V/4V	132*52	±15V
	0-(25000-40000)A	5V/4V	132*52	±15V
AHKC-HBAA	DC0-(2000-8000)A	4-20mA	132*52	12V/24V
	DC0-(10000-20000)A	4-20mA	132*52	12V/24V
	DC0-(25000-40000)A	4-20mA	132*52	12V/24V
AHKC-HBDA	AC0-(2000-8000)A	4-20mA	132*52	12V/24V
	AC0-(10000-20000)A	4-20mA	132*52	12V/24V
	AC0-(25000-40000)A	4-20mA	132*52	12V/24V

5.客戶要求 Customer Requirement

客戶有一個太陽能混合動力系統。PV板，電池儲能與柴油發生器電信站，三者連接到同一根母線。客戶想用直流儀表來監測母線的電流電壓。他們的太陽能系統是電信基站，輔助電源是DC48V，電流是DC100A。

The customer have a solar hybrid system. PV panel, battery storage and diesel generator for a telecom station，All the 3 systems are connected to a single bus bar. They wants to know the watt hour reading from the bus bar using a DC meter. And their solar site is a telecom site. the power supply voltage is DC 48V, the current is DC100A.

參考文獻 Bibliography

1.Solutions For Enterprise Micro-grid System 2021.04

相關產品

免責聲明

凡本網注明“來源：儀表網”的所有作品，均為浙江興旺寶明通網絡有限公司-儀表網合法擁有版權或有權使用的作品，未經本網授權不得轉載、摘編或利用其它方式使用上述作品。已經本網授權使用作品的，應在授權范圍內使用，并注明“來源：儀表網”。違反上述聲明者，本網將追究其相關法律責任。
本網轉載并注明自其它來源（非儀表網）的作品，目的在于傳遞更多信息，并不代表本網贊同其觀點或和對其真實性負責，不承擔此類作品侵權行為的直接責任及連帶責任。其他媒體、網站或個人從本網轉載時，必須保留本網注明的作品第一來源，并自負版權等法律責任。
如涉及作品內容、版權等問題，請在作品發表之日起一周內與本網聯系，否則視為放棄相關權利。