FC-SDI-1624

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Email:sales@cxplcmro.com

描述

FC-SDI-1624

電力變壓器在正常運行中其產(chǎn)生的電磁交流聲的頻率相對較為穩(wěn)定,所以電力變壓器在高壓試驗中如果操作人員發(fā)現(xiàn)其內(nèi)部聲音異常,則可能是電力變壓器過載運行、內(nèi)部零件松動、貼心最外層硅鋼片未夾緊、頂蓋螺絲松動、內(nèi)部電壓過高、內(nèi)部接觸不良以及電力變壓器短路等故障,或電力變壓器繞組中存在較大的電流等,上述多種情況都能導(dǎo)致電力變壓器高壓試驗中出現(xiàn)內(nèi)部聲音異常情況。上述故障發(fā)生后操作人員可以通過電力變壓器內(nèi)部聲音來判斷其是否出現(xiàn)故障,在判定故障發(fā)生后操作人員要對電力變壓器上述部位進行斷電檢查,并根據(jù)故障原因來采取合理的措施進行解決。電力變壓器在高壓試驗中如果出現(xiàn)自動跳閘的現(xiàn)象,則需要操作人員通過外部檢查來確定故障原因,如果是由于操作人員在高壓試驗中的操作原因?qū)е缕涮l,則不需要對電力變壓器進行外部檢查,但是如果不是認(rèn)為原因?qū)е码娏ψ儔浩魈l,則要求操作人員必須徹底、全面的對電力變壓器進行內(nèi)部檢查,避免電力變壓器在后期使用中發(fā)生火災(zāi)。如果電力變壓器周圍出現(xiàn)火災(zāi)則其會自動保護動作,通過自動切斷斷路器來避免電氣設(shè)備受到損毀,如果電力變壓器在火災(zāi)時沒有自動斷開,則要通過手動操作來將斷路器斷開才能進行火情撲救,這也是火災(zāi)情況下針對電力變壓器操作的主要前提條件。電力變壓器正常運行情況下的油位會控制在一定范圍內(nèi),并且根據(jù)當(dāng)?shù)鼐唧w情況來對油位進行適當(dāng)調(diào)整,所以在電力變壓器高壓試驗中如果發(fā)現(xiàn)油位明顯變化,要求操作人員首先要確定電力變壓器是否存在漏油現(xiàn)象,當(dāng)油位明顯上升時則首先要考慮是否環(huán)境溫度對其產(chǎn)生的影響。如果針對上述情況時可以排除掉環(huán)境溫度因素,則操作人員要對油標(biāo)管、呼吸管等部位進行檢查,確定其在運行中是否存在堵塞現(xiàn)象,并要根據(jù)實際檢查結(jié)構(gòu)來對其進行處理,這樣才能確保電力變壓器在后期使用中的安全性、穩(wěn)定性。

產(chǎn)品承諾:
保?證?全新原裝進口,
保?證?安全準(zhǔn)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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Triconex?Siemens?Yaskawa?ABB?GE?Ovation?AB?Foxboro?Motorola?Schneider?XYCOM?KUKA
? 專業(yè)銷售進口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)實力庫存商家

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專業(yè)銷售進口DCS? PLC系統(tǒng)備件模塊

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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(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(xué)習(xí)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(xí)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(xué)會一種至于其它的學(xué)習(xí)起來也就簡單了。