安科瑞(rui) 繆凱倫(lun)
摘 要:隨(sui)著(zhu)社會經濟的(de)快速(su)發展,我國(guo)變電(dian)(dian)(dian)站正朝(chao)著(zhu)現(xian)代化的(de)方向(xiang)不斷發展,自動化設備以及繼(ji)電(dian)(dian)(dian)保(bao)護(hu)裝(zhuang)(zhuang)置(zhi)憑借自身優異性能而獲得廣泛應用。本文介紹的(de)AM系列(lie)的(de)微(wei)機保(bao)護(hu)裝(zhuang)(zhuang)置(zhi),可(ke)以針對(dui)貴陽萬科翡翠(cui)濱(bin)江配電(dian)(dian)(dian)工程中不同(tong)保(bao)護(hu)對(dui)象(xiang)提供(gong)對(dui)應的(de)保(bao)護(hu)功能。并根據實(shi)際(ji)情況對(dui)備自投保(bao)護(hu)裝(zhuang)(zhuang)置(zhi)的(de)邏輯進行優化,使得供(gong)電(dian)(dian)(dian)條(tiao)件(jian)更加(jia)嚴謹。很(hen)大(da)程度上提高(gao)了變電(dian)(dian)(dian)站運行的(de)可(ke)靠性、安全性和供(gong)電(dian)(dian)(dian)質量,有利于實(shi)現(xian)變電(dian)(dian)(dian)站綜合(he)自動化,實(shi)現(xian)無人(ren)或少人(ren)值(zhi)班。
關(guan)鍵詞(ci):安全性;可靠性;微機(ji)保(bao)(bao)護裝置;備自投保(bao)(bao)護裝置
1 概(gai)述(shu)
萬科企業股份有限公司成(cheng)立于1984年,經過三(san)十余年的(de)發展,已成為國內的(de)城鄉(xiang)建設與(yu)生(sheng)活(huo)服務(wu)商(shang),公司業務(wu)聚(ju)焦全國經濟活(huo)力的(de)三(san)大(da)經濟圈及中西部著(zhu)重城市。2016年(nian)公司躋身《財富》 “世界500強",位列榜單第356位,2017-2022年(nian)連續五年(nian)上(shang)榜。萬科(ke)始(shi)終堅持(chi)為(wei)普通人(ren)提供好(hao)(hao)(hao)產品、好(hao)(hao)(hao)服(fu)務,通過(guo)自身努力,為(wei)滿足人(ren)民(min)對美(mei)好(hao)(hao)(hao)生(sheng)活的各方面需求,做(zuo)出力所能及的貢獻(xian)。在鞏固住宅開發(fa)和物業服(fu)務固有(you)優勢的基礎(chu)(chu)上(shang),業務已延伸至商業、長(chang)租公寓、物流倉儲、酒店與度假(jia)、教(jiao)育等領域,為(wei)更(geng)好(hao)(hao)(hao)地(di)服(fu)務人(ren)民(min)美(mei)好(hao)(hao)(hao)生(sheng)活需要、實現可持(chi)續發(fa)展(zhan)奠定了(le)良好(hao)(hao)(hao)基礎(chu)(chu)。
本項(xiang)目為貴陽萬科翡(fei)翠濱江10kV樓配電工程(cheng),包括環網柜(ju)(ju)和高壓柜(ju)(ju)兩種柜(ju)(ju)型(xing),其中環網柜(ju)(ju)的出線作為中置柜(ju)(ju)的進(jin)線來給各個配電房進(jin)行供電。環網柜(ju)(ju)采用AGW15-12/V型真空開關柜(ju),進出線(xian)柜(ju)分(fen)別采用電纜下進線(xian)和下出線(xian)的方式(shi),利用SF6對(dui)開關柜進(jin)行全絕(jue)緣(yuan)全密封。高壓柜采用KYN28-12型金屬(shu)鎧裝手車式真空(kong)開關柜,高壓柜進出電纜采用下進下出,計量CT和PT的(de)精(jing)度都為0.2級(ji)。
2 項目(mu)需求
本次針對貴陽萬(wan)科翡翠濱江10kV樓配電(dian)工(gong)程(cheng)項目(mu)中不同對象配置不同的微機保(bao)護裝置。環網柜(ju)均配置AM2SE微機保護裝(zhuang)置(zhi);高壓柜進出線配置(zhi)AM3SE微(wei)機保護裝置;A1-2#酒(jiu)店配電房的(de)運行方式為兩回10kV電源一主一備供電方(fang)式(shi),高壓自動轉(zhuan)換(huan)開關(guan)柜中母聯柜配置AM5SE-B備自投保護裝置(zhi),把(ba)母聯柜當(dang)成進線1和進線2之間做進線備(bei)自投(tou)實現兩(liang)路進線(xian)的自動切換功(gong)能;A1-3#配電房的運行方式為兩回10kV電源互為備(bei)用的供(gong)電方式,高(gao)壓自動(dong)轉換開關柜中主供進線配置(zhi)AM5SE-B備自投保護裝置,實現(xian)兩(liang)路進線的自動(dong)切換功(gong)能。
進(jin)(jin)(jin)(jin)線(xian)(xian)(xian)備(bei)自(zi)(zi)(zi)(zi)投(tou)(tou)是指(zhi)主供(gong)(gong)(gong)(gong)進(jin)(jin)(jin)(jin)線(xian)(xian)(xian)失電(dian)(dian)(dian)后(hou),由備(bei)用(yong)(yong)電(dian)(dian)(dian)源(yuan)給負載供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)。若(ruo)需(xu)要(yao)(yao)自(zi)(zi)(zi)(zi)復(fu),則當(dang)主供(gong)(gong)(gong)(gong)進(jin)(jin)(jin)(jin)線(xian)(xian)(xian)恢復(fu)來電(dian)(dian)(dian)后(hou),由備(bei)用(yong)(yong)電(dian)(dian)(dian)源(yuan)再(zai)切回主供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)源(yuan)。其邏輯中(zhong)考慮的(de)(de)(de)(de)是備(bei)用(yong)(yong)電(dian)(dian)(dian)源(yuan)一直(zhi)帶(dai)電(dian)(dian)(dian),但備(bei)用(yong)(yong)電(dian)(dian)(dian)源(yuan)也存在失電(dian)(dian)(dian)的(de)(de)(de)(de)情況。在對進(jin)(jin)(jin)(jin)線(xian)(xian)(xian)備(bei)自(zi)(zi)(zi)(zi)投(tou)(tou)測試過程中(zhong)發現,當(dang)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)系統的(de)(de)(de)(de)電(dian)(dian)(dian)源(yuan)不需(xu)要(yao)(yao)自(zi)(zi)(zi)(zi)復(fu)且主供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)源(yuan)和備(bei)用(yong)(yong)電(dian)(dian)(dian)源(yuan)均失電(dian)(dian)(dian)時,主供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)源(yuan)恢復(fu)來電(dian)(dian)(dian)后(hou),備(bei)自(zi)(zi)(zi)(zi)投(tou)(tou)會直(zhi)接(jie)切換(huan)為(wei)主供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)源(yuan)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian),這與不需(xu)要(yao)(yao)自(zi)(zi)(zi)(zi)復(fu)的(de)(de)(de)(de)實際(ji)需(xu)求是相悖的(de)(de)(de)(de)。針(zhen)對這一問題,對備(bei)自(zi)(zi)(zi)(zi)投(tou)(tou)的(de)(de)(de)(de)邏輯進(jin)(jin)(jin)(jin)行了改(gai)進(jin)(jin)(jin)(jin),增(zeng)加了是否(fou)投(tou)(tou)入兩個進(jin)(jin)(jin)(jin)線(xian)(xian)(xian)的(de)(de)(de)(de)備(bei)投(tou)(tou)軟壓(ya)板,讓備(bei)自(zi)(zi)(zi)(zi)投(tou)(tou)條(tiao)件(jian)更加嚴謹,其保護功(gong)能更符合(he)供(gong)(gong)(gong)(gong)電(dian)(dian)(dian)系統的(de)(de)(de)(de)實際(ji)需(xu)求。
根(gen)據客戶的實際需求,本項目同時配置了(le)ASD200智能操控裝(zhuang)置(zhi),該裝(zhuang)置(zhi)安裝(zhuang)在開關(guan)柜(ju)上可以動態直觀的(de)模擬一(yi)次圖的(de)開關(guan)狀(zhuang)態,顯示主(zhu)回路的(de)帶電情況,并(bing)具有語音防誤(wu)提示等功能。
以上幾(ji)款微(wei)機保護裝(zhuang)置及智(zhi)能操控裝(zhuang)置主(zhu)要通過以下功能實(shi)現(xian)對高壓柜(ju)的設備運行情況實(shi)時監視(shi)和保護:
3 產品(pin)方案(an)
本項目10kV配(pei)電工(gong)程有2個戶外開關箱(xiang)和3個(ge)配電房,分(fen)別(bie)列舉一(yi)個(ge)戶(hu)外開關箱和1個配電(dian)房,上(shang)圖方案如下:
貴陽萬科(ke)翡翠濱(bin)江A1#樓配電項目所設微(wei)機保護及智(zhi)能(neng)操控裝(zhuang)置型號與數量如下:
上述貴(gui)陽(yang)萬科翡翠濱江A1#樓配電項目共(gong)配置(zhi)12臺AM2SE,11臺(tai)AM3SE-I微機保(bao)護裝置和2臺AM5SE-B備自投保護裝(zhuang)置,此外,本項目針對(dui)各回路配置15臺ASD200智能(neng)操控裝置(zhi),28只(zhi)AMC96電能表和(he)289只(zhi)AMC72電能(neng)表。
5 現場安裝圖片(pian)
本項目微(wei)機保護就地分(fen)散安裝在各個高(gao)壓開關柜(ju)上,保護裝置以及電能表現場(chang)安裝如下(xia)圖所示。
圖3 微(wei)機保護(hu)裝(zhuang)置以及電能表在貴(gui)陽萬科翡翠濱江A1#樓配(pei)電(dian)項目(mu)現場安裝圖(tu)片
6 結語(yu)
微機保(bao)護(hu)裝置在電(dian)力系統處于至關重要的位(wei)置,它能夠反應(ying)設(she)備(bei)的故障(zhang)和不正常工(gong)作狀(zhuang)態并自動迅速地(di)、有選擇性地(di)動作于斷(duan)路器將(jiang)故障(zhang)設(she)備(bei)從(cong)系統中切除,保(bao)證設(she)備(bei)繼續正常運行,將(jiang)事故(gu)范(fan)圍控制在較(jiao)小(xiao)范(fan)圍(wei)內(nei),提(ti)高系(xi)統運行的可靠性,較(jiao)大限(xian)度地(di)保(bao)證向用(yong)戶安全、連續供電。本文介紹的AM系列的微機保護(hu)裝置,可以針對(dui)貴陽(yang)萬(wan)科翡(fei)翠濱(bin)江配電工程中不同保護(hu)對(dui)(dui)象提供(gong)對(dui)(dui)應的保護(hu)功能(neng)。并根據備(bei)用電源也會失電的(de)實(shi)際情(qing)況對備(bei)自(zi)投保護裝(zhuang)置的(de)邏輯進行(xing)優化,使得保護條件(jian)更加嚴謹。很(hen)大程度上提高(gao)了變電(dian)站運行的可靠性(xing)、安全性(xing)和供(gong)電質(zhi)量,有(you)利于實(shi)(shi)現變電站綜合(he)自動(dong)化,實(shi)(shi)現無人或(huo)少人值班。
參考(kao)文(wen)獻
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