6AV1242-0AB1

分類:
選擇深圳長欣,選擇放心,售后無憂
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描述

3HAC025338-004/06D D63T3G

電能表作為電能計量的專用儀表,在電能管理儀器儀表中占有很大比例,其性能直接影響著電能管理的效率和科技水平。從產(chǎn)品的功能、性能及經(jīng)濟效益等多方面來看,全電子電能表與傳統(tǒng)的感應(yīng)式電能表相比,存在著明顯的優(yōu)勢。而且電能表作為計量管理和用電管理的終端,它所提供的各種功能是實現(xiàn)電力系統(tǒng)自動化管理必不可少的。傳統(tǒng)的測量都是采用A/D轉(zhuǎn)換電路,但這種方法使部分電參量測量精度欠佳,性價比不理想,且軟件編程相對復雜,微控制器必須對采樣電路進行數(shù)據(jù)處理(如電壓、電流的平均值、有效值,有功、無功計算等)。而隨著現(xiàn)代電子產(chǎn)業(yè)的高速發(fā)展,測量電路的集成化、模塊化成為未來發(fā)展的趨勢,各大器件公司也紛紛推出自己的電能計量芯片。這種集成芯片不僅精確度高,而且硬件、軟件設(shè)計簡單,價格便宜,性價比高,極具市場潛力。本文給出了基于Microchip公司的MCP3906單相電能計量芯片,并以AVR公司的ATMega16為MCU設(shè)計開發(fā)的一款新型單相電能表實現(xiàn)方案。與以往電能表相比,該方案具有設(shè)計接口簡單、結(jié)構(gòu)緊湊、可靠性高等特點。

MCP3906的兩個數(shù)字高通濾波器(HPF1和HPF2)可以濾除兩個通道的系統(tǒng)偏移量,因此,有功功率的計算不含任何電路或系統(tǒng)偏移量。經(jīng)過高通濾波后,電壓和電流信號相乘,即可得出瞬時功率信號。此信號不含直流偏移分量,因此可有效利用求平均法(AveragingTechnique)計算出所需的有功功率輸出。
瞬時功率信號包含的有功功率信息就是瞬時功率的直流分量。求平均法可用于計算正弦和非正弦波形,以及所有功率因數(shù)。瞬時功率經(jīng)過低通濾波器(LPF)就可以產(chǎn)生瞬時有功功率信號。
通過MCP3906的DTF轉(zhuǎn)換器可對瞬時有功功率信息進行累加,以產(chǎn)生輸出脈沖,此脈沖的頻率與平均有功功率成比例。FOUT0和FOUT1輸出的低頻脈沖可用于設(shè)計驅(qū)動機電式計數(shù)器和雙相步進電機,以便顯示實際消耗的有功功率。每個脈沖對應(yīng)于一個固定的有功電量值,其功能可由F2、F1和F0的邏輯進行選擇。HFOUT輸出具有較高的頻率設(shè)定和較低的積分周期,可用于表征瞬時有功功率信號。由于累加時間較短,該輸出可使用戶在穩(wěn)定的負載條件下進行快速的校準。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準時發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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428 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

427 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

426 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

421 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

418 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

424 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

423 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

407 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

403 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

414 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

411 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

416 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

410 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

401 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

413 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

420 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

329 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

412 Sundstrand-Saue?r-Danfoss Hydraulic Series 47 Pump

專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

PLC模塊,可編程控制器,CPU模塊,IO模塊,AI模塊,通訊模塊。AB/施耐德/ABB/GE/本特利/西屋/英維斯/霍尼韋爾/黑馬/FU克斯波羅

15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實力庫存商家


選擇深圳長欣,選擇放心,售后無憂大量現(xiàn)貨,當天順豐發(fā)貨!
主營:本特利,英維思,伍德沃德,??怂共_、西屋、瑞恩、施耐德莫迪康、ABB、AB、西門子、摩托羅拉、GE發(fā)那科、安川、博世力士樂,ACSO,力士樂等各大品牌的DCS系統(tǒng)配件,機器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點經(jīng)驗。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個大概,以便學習編程時查找);
2、由位控邏輯入手,逐漸增加定時、計數(shù)等條件,把或、與、非關(guān)系理順;
3、進而練習整數(shù)運算、實數(shù)運算、類型轉(zhuǎn)換;
4、量程轉(zhuǎn)換、PID調(diào)節(jié)回路的建立及P、I、D參數(shù)的理解(最好是有個物理回路驗證,比如變頻器+電機+測速傳感器);
5、循環(huán)、順序、跳轉(zhuǎn)等程序控制(盡量避免跳轉(zhuǎn),非跳不可時也是跳的越近越好);
6、中斷、通訊、位置控制....

本人以ABB工業(yè)機器人配件DSQC系列和Motorola MVME系列,GE 卡件 模塊 驅(qū)動器系列為主攻。各位電工朋友可根據(jù)自己的條件選擇適合自己的PLC品牌,由于PLC的基本框架大同小異,學會一種至于其它的學習起來也就簡單了。