S-D4007-K

分類:
選擇深圳長(zhǎng)欣,選擇放心,售后無(wú)憂
大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
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電話:18150087953 / 18005022628

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Email:[email protected]

描述

S-D4007-K

電容器保護(hù)。電容器是由兩個(gè)電極及其間的介電材料構(gòu)成的,主要發(fā)揮著儲(chǔ)存電能和轉(zhuǎn)換電能的作用,即其自身會(huì)自動(dòng)以另一種狀態(tài)儲(chǔ)存10kV配電線網(wǎng)中多余的電能,在10kV配電線網(wǎng)中缺少電能時(shí),自動(dòng)將自身儲(chǔ)存電能轉(zhuǎn)化成配電網(wǎng)可以使用的電能,以能夠支持配電線網(wǎng)內(nèi)部的正常使用和運(yùn)作。針對(duì)電容器發(fā)揮的作用,串聯(lián)補(bǔ)償技術(shù)主要是通過(guò)避免電容器出現(xiàn)過(guò)負(fù)荷和不平衡現(xiàn)象來(lái)對(duì)電容器進(jìn)行保護(hù),在各個(gè)10kV配電線網(wǎng)中設(shè)置電壓和電流監(jiān)控系統(tǒng),并定期對(duì)電壓電流數(shù)值與正常數(shù)值進(jìn)行比對(duì),一旦發(fā)現(xiàn)高電壓或是低電壓現(xiàn)象,便立即拉起危險(xiǎn)警報(bào)提醒相關(guān)工作人員進(jìn)行檢查。MOV保護(hù)。串聯(lián)補(bǔ)償技術(shù)對(duì)MOV保護(hù)分為四部分:過(guò)電流保護(hù)、能量保護(hù)、溫度保護(hù)和不平衡保護(hù),過(guò)電流保護(hù)和不平衡保護(hù)原理同上文對(duì)電容器保護(hù)是相同的,都是在配電線網(wǎng)中加入監(jiān)控設(shè)備,并依據(jù)監(jiān)控設(shè)備內(nèi)部相關(guān)數(shù)據(jù)信息和標(biāo)準(zhǔn)信息比對(duì)結(jié)果,再?zèng)Q定下一步流程操作是否繼續(xù);相對(duì)于以上設(shè)備對(duì)故障穩(wěn)定發(fā)現(xiàn)的及時(shí)性,能量保護(hù)和溫度保護(hù)發(fā)現(xiàn)故障問(wèn)題的速度就會(huì)慢一些,因?yàn)槠涫遣捎梅e分曲線的形式,對(duì)一段時(shí)間內(nèi)部的MOV電流積分和定值進(jìn)行比較。間隙保護(hù)。由于配電線網(wǎng)所處環(huán)境問(wèn)題,會(huì)造成某些地區(qū)配電線網(wǎng)中出現(xiàn)短暫的故障現(xiàn)象,即在線網(wǎng)運(yùn)行的某一瞬間出現(xiàn)高電壓和低電壓現(xiàn)象,然后瞬間又恢復(fù)到正常電壓狀態(tài)。故針對(duì)這種現(xiàn)象,串聯(lián)補(bǔ)償保護(hù)加入了對(duì)設(shè)備的間隙保護(hù),這種保護(hù)能夠延遲這種間隙錯(cuò)誤時(shí)間段,以便配電線網(wǎng)內(nèi)部設(shè)備有足夠時(shí)間反應(yīng)和處理信息,減少對(duì)配電線網(wǎng)主設(shè)備的影響。

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(shì)價(jià)格,大量現(xiàn)貨。

主營(yíng)DCS系統(tǒng)配件
機(jī)器人系統(tǒng)配件
大型伺服系統(tǒng)配件
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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(guó)內(nèi)實(shí)力庫(kù)存商家

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Agilestar – AA1419003 – For Nortel – New in Box

Agilestar – AA1419004 – For Nortel – New in Box

Agilestar – FTLX8511D3 – For Finisar – New In Box

Agilestar – 10016 – For Extreme Networks – New in Box

Agilestar – 10017 – For Extreme Networks – New in Box

Agilestar – 10019 – For Extreme Networks – New in Box

Agilestar – E1MG-LHB – For Foundry Networks – NIB

Agilestar – ONS-SI-155-SR-M?M – For Cisco – New In Box

Agilestar – TEG-GBS80 – For use in TRENDnet New in Box

Agilestar – SU68AA – For use in Marconi – NIB

Agilestar – SU67AB – For use in Marconi – NIB

Agilestar – M8001-10000ELX – For use in Avaya – NIB

Agilestar – ONS-GX-2FC-MMI – For Cisco – New in Box

Agilestar – ONS-SE-GE-ZX – For Cisco – New in Box

Agilestar – ONS-XC-10G-SR-M?M – For Cisco – NIB

Agilestar – 808-38610-AS – For IMC Networks – New in Bo

Agilestar – ONS-SI-2G-S1 – For Cisco – New In Box

Agilestar – ONS-SE-ZE-EL – For Cisco – New in Box

Agilestar – JD063B – For HP – New in Box

Agilestar – FTL-1419-3D-AS – For Finisar – New in Box

Agilestar – SFP-ZX-80 – For use in Zyxel – New in Box

Agilestar – DS-SFP-FC4G-LW – For Cisco – New in Box

Agilestar – ONS-SE-GE-BXD-A?S – For Cisco – New in Box

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(guó)內(nèi)實(shí)力庫(kù)存商家


選擇深圳長(zhǎng)欣,選擇放心,售后無(wú)憂大量現(xiàn)貨,當(dāng)天順豐發(fā)貨!
主營(yíng):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(mén)子、摩托羅拉、GE發(fā)那科、安川、博世力士樂(lè),ACSO,力士樂(lè)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(cè)”(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(cè)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(dòng)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(huì)一種至于其它的學(xué)習(xí)起來(lái)也就簡(jiǎn)單了。