TKM3F3pole600VAC

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描述

TKM3F3pole600VAC

零序電流互感器的一次側(cè)三相導(dǎo)線穿過鐵芯,二次線圈繞在鐵芯上。正常情況下,由于零序電流互感器的一次側(cè)三相電流對稱,向量和為零,鐵芯中不會產(chǎn)生磁通,二次線圈中沒有電流。當(dāng)系統(tǒng)發(fā)生單相接地故障時(shí),三相電流之和不為零,鐵芯中出現(xiàn)零序磁通,該磁通在二次線圈上感應(yīng)出電勢,二次電流流過繼電器使之動作。
? ? 零序電流互感器是用來檢測微量的,檢測是否漏電.零序電流互感器是如何發(fā)出動作信號,以便執(zhí)行機(jī)構(gòu)執(zhí)行的,本身有輸出觸點(diǎn)嗎?零序電流互感器自身沒有輸出觸點(diǎn),必須和漏電保護(hù)繼電器配合使用.
? ?零序電流互感器與漏電保護(hù)繼電器組合,構(gòu)成漏電和接地故障保護(hù)裝置。通過零序電流互感器檢測出超過整定值的零序漏電電流,漏電保護(hù)繼電器對比額定動作電流,發(fā)出動作信號,斷開或接通報(bào)警回路。
? ? 三相不平衡可不一定要燒毀東西啊,只是對供電電網(wǎng)會造成一定的影響,配電一定要合理分配電能,每一相都不能差得太多了,這樣會使電能合理利用.零序電流互感器是一次穿過三相電纜,每相電流都相等的時(shí)候它不工作,而是當(dāng)三相電流不平衡的時(shí)候它才發(fā)出電流信號.帶動繼電器動作,達(dá)到保護(hù).一般的電流互感器工作時(shí)一次只穿過一相電線,它是對電流的計(jì)量和作保護(hù)之用。
? ?零序電流互感器屬于電流互感器的一種,用來檢測中性不平衡電流用的裝置,一般配合繼電保護(hù)裝置用。電流互感器是用來檢測某相電流或電氣保護(hù)線路電流的裝置,往往配合繼電保護(hù)裝置使用零序電流互感器一般用于檢測單相兩線電流或三相四線電流矢量和是否為零,不為零時(shí)輸出觸發(fā)信號;一般電流互感器只是檢測導(dǎo)線上電流的大小,常用于顯示。

產(chǎn)品承諾:
保?證?全新原裝進(jìn)口,
保?證?安全準(zhǔn)時(shí)發(fā)貨,
保?證售后服務(wù)質(zhì)量,
優(yōu)勢價(jià)格,大量現(xiàn)貨。

主營DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
品牌:ABB???,AB??,GE,FOXBORO,本特利,英維思,伍德沃德,西屋,瑞恩,施耐德,西門子,摩托羅拉,安川。力士樂。ACSO,橫河等進(jìn)口品牌。 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊
Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進(jìn)口DCS? PLC系統(tǒng)備件模塊 15天包退換 一年質(zhì)保 大量現(xiàn)貨? 國內(nèi)實(shí)力庫存商家

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專業(yè)銷售進(jìn)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(shí)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(dāng)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(jī)器人系統(tǒng)配件,大型伺服系統(tǒng)備件。

先介紹幾點(diǎn)經(jīng)驗(yàn)。
1、先通讀一遍“系統(tǒng)手冊”(不管能不能看懂,先了解個(gè)大概,以便學(xué)習(xí)編程時(shí)查找);
2、由位控邏輯入手,逐漸增加定時(shí)、計(jì)數(shù)等條件,把或、與、非關(guān)系理順;
3、進(jìn)而練習(xí)整數(shù)運(yùn)算、實(shí)數(shù)運(yùn)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(gè)物理回路驗(yàn)證,比如變頻器+電機(jī)+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(shí)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(jī)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(xué)會一種至于其它的學(xué)習(xí)起來也就簡單了。