ABB DDI 03

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描述

ABB DDI 03

?繼電保護(hù)狀態(tài)檢修的巡檢項(xiàng)目及巡檢周期
繼電保護(hù)裝置保護(hù)狀態(tài)檢修采用的巡檢模式是為獲得設(shè)備的運(yùn)行狀態(tài)的信息進(jìn)行的定期的檢查,其中相關(guān)工作人員對(duì)設(shè)備的運(yùn)行狀態(tài)巡視和裝置的檢修也屬于繼電保護(hù)裝置的巡檢內(nèi)容。電力系統(tǒng)運(yùn)行的電壓等級(jí)眾多,文章針對(duì)不大于110KV的電壓等級(jí)的系統(tǒng)為例,說(shuō)明其中的巡檢項(xiàng)目。首先,檢查微機(jī)保護(hù)裝置的運(yùn)行環(huán)境、溫度、濕度等條件是否滿(mǎn)足設(shè)備的正常運(yùn)行的相關(guān)要求。其次,檢查微機(jī)保護(hù)裝置面板的顯示內(nèi)容是否正常。最后,檢查微機(jī)保護(hù)裝置保護(hù)屏內(nèi)的功能開(kāi)關(guān)、電壓的投退、方式開(kāi)關(guān)等是否能夠正常工作,滿(mǎn)足可靠接觸的要求。
微機(jī)繼電保護(hù)裝置狀態(tài)檢修的巡視內(nèi)容主要包括:第一,電力系統(tǒng)中微機(jī)保護(hù)裝置各面板的運(yùn)行指示內(nèi)容和信息、面板顯示屏等是否正常工作,并注意檢查定制區(qū)號(hào)和整定單值的一致性。第二,保護(hù)屏內(nèi)的各種方式開(kāi)關(guān)、功能開(kāi)關(guān)以及壓板投退是否與電力運(yùn)行狀態(tài)要求一致,同時(shí)要注意檢查其接觸的可靠性和是否滿(mǎn)足整定單的要求。第三,回路運(yùn)行溫度的檢查。直流電源回路受電壓互感器、電流互感器等的影響,可采用紅外測(cè)溫儀器,檢查回路溫度。第四,針對(duì)二次回路運(yùn)行情況進(jìn)行檢查,其中主要是接線是否有松動(dòng)、接地可靠性、戶(hù)外端子箱和端子排是否發(fā)生腐蝕等情況進(jìn)行檢查。第五,反事故措施的執(zhí)行情況進(jìn)行檢查。反措檢查是為了提高電力系統(tǒng)設(shè)備運(yùn)行的可靠性,主要是檢查設(shè)備實(shí)際運(yùn)行情況和開(kāi)入量是否具有一致性,各項(xiàng)反措執(zhí)行情況是否符合相關(guān)要求。電壓等級(jí)低于110KV的電力系統(tǒng)運(yùn)行設(shè)備,要求繼電保護(hù)設(shè)備運(yùn)行的巡視周期為每月進(jìn)行一次巡視,檢修巡視要求每年一次。

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Tektronix Y350C NetTek OTDR YSU1315 SM Fiber Module
@CALIBRATED@13?10nm/1550nm Singlemode@90 Day Warranty@

Tektronix 492BP 10KHz to 21GHz Programmable GPIB Tested

Tektronix TekRanger2 TFS3031 SM MM Fiber TekRanger OTDR
@CALIBRATED@MM 850/1300nm@SM 1310/1550nm@90?DayWarranty@

Inet Turbo 7 16-Link SS7 test Set Tektronix Spectra
Make me an offer need to move this out!

TEK TDS784C 4CH DPO COLOR OSCILLOSCOPE 4GS/s 1GHz 2M HD

Tektronix TDS 520C TDS520C scope, 1F, 1M, 2F, VGA, GPIB
additional free NIST recalibration within one year

Tektronix TDS 684B TDS684B oscilloscope, NIST-certified
additional free NIST recalibration within one year

TEKTRONIX PG2012 PULSE GENERATOR *** ON SALE NOW***

Tektronix SPG600 Full Rack Video Signal Generators NEW

Tektronix AFG2020 Arbitrary Function Generator

Tektronix TDS 3044B 4 Channel 400MHZ 5S/s Oscilliscope
*****FREE SHIPPING!!! TO LOWER 48 AND CANADA!!!!!!**?***

Tektronix TDS784D 1 GHz, 4 Channel, 4 GSa/s

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(yōu)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(lèi)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。