成(cheng)套基(ji)礎知識：1、什么(me)(me)叫間(jian)隔距離？滿(man)足對隔離器所(suo)規定的(de)安全要求的(de)斷(duan)(duan)開(kai)觸頭間(jian)的(de)電(dian)(dian)氣間(jian)隙(xi)叫間(jian)隔距離。2、真(zhen)空斷(duan)(duan)路器有何特點和用(yong)途？⑴特點：① 熄弧能力強，燃弧時間(jian)短，全分斷(duan)(duan)時間(jian)也短。② 觸頭電(dian)(dian)磨損小(xiao)(xiao)(xiao)，電(dian)(dian)壽命長(chang)，觸頭不受外界有害氣體的(de)侵蝕(shi)。③ 觸頭開(kai)距小(xiao)(xiao)(xiao)，減小(xiao)(xiao)(xiao)了(le)操(cao)(cao)動(dong)機構(gou)的(de)操(cao)(cao)作功，機械壽命也長(chang)。④ 結構(gou)簡單，維修工作量(liang)小(xiao)(xiao)(xiao)，真(zhen)空滅弧與觸頭不需檢修。⑤ 體積(ji)小(xiao)(xiao)(xiao)，重量(liang)輕。⑥ 環境(jing)污染小(xiao)(xiao)(xiao)。⑦ 適(shi)合于(yu)頻繁(fan)操(cao)(cao)作和快速切(qie)斷(duan)(duan)，特別適(shi)合于(yu)切(qie)斷(duan)(duan)電(dian)(dian)容(rong)性負(fu)載(zai)電(dian)(dian)路。⑵用(yong)途：適(shi)用(yong)于(yu)作為配(pei)電(dian)(dian)和控制設(she)備，尤其適(shi)用(yong)頻繁(fan)操(cao)(cao)作，控制高(gao)壓(ya)(ya)電(dian)(dian)動(dong)機，切(qie)合電(dian)(dian)容(rong)器組，保護大型硅整流裝置等高(gao)壓(ya)(ya)電(dian)(dian)器設(she)備使用(yong)。低壓(ya)(ya)開(kai)關(guan)柜(ju)具有多種(zhong)保護功能，如過載(zai)保護、短路保護和漏電(dian)(dian)保護等。交流低壓(ya)(ya)配(pei)電(dian)(dian)柜(ju)怎(zen)么(me)(me)樣

目(mu)前應用較廣(guang)的有電(dian)(dian)(dian)(dian)(dian)磁阻(zu)尼(ni)(ni)式、空氣(qi)阻(zu)尼(ni)(ni)式、電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機式和電(dian)(dian)(dian)(dian)(dian)子式時間(jian)(jian)繼電(dian)(dian)(dian)(dian)(dian)器(qi)。按延(yan)(yan)時方式可分為以下(xia)兩(liang)類：1.通電(dian)(dian)(dian)(dian)(dian)延(yan)(yan)時型(xing)。該(gai)繼電(dian)(dian)(dian)(dian)(dian)器(qi)線圈在(zai)獲得輸(shu)入(ru)信號(hao)(hao)（或通電(dian)(dian)(dian)(dian)(dian)）后，立即(ji)開始延(yan)(yan)時，待延(yan)(yan)時完，其執行部分（即(ji)觸(chu)頭(tou)）才(cai)輸(shu)出信號(hao)(hao)（即(ji)動(dong)(dong)(dong)作(zuo)）。當輸(shu)入(ru)信號(hao)(hao)消(xiao)失(shi)，繼電(dian)(dian)(dian)(dian)(dian)器(qi)恢(hui)復(fu)動(dong)(dong)(dong)作(zuo)前狀態。其動(dong)(dong)(dong)作(zuo)情況，即(ji)從線圈通電(dian)(dian)(dian)(dian)(dian)到(dao)觸(chu)頭(tou)動(dong)(dong)(dong)作(zuo)所經歷(li)的時間(jian)(jian)（T）稱(cheng)通電(dian)(dian)(dian)(dian)(dian)延(yan)(yan)時時間(jian)(jian)。2.斷(duan)電(dian)(dian)(dian)(dian)(dian)延(yan)(yan)時型(xing)。該(gai)繼電(dian)(dian)(dian)(dian)(dian)器(qi)與前者(zhe)相反，當獲得輸(shu)入(ru)信號(hao)(hao)（通電(dian)(dian)(dian)(dian)(dian)）后，執行部分立即(ji)輸(shu)出信號(hao)(hao)，當輸(shu)入(ru)信號(hao)(hao)消(xiao)失(shi)，（斷(duan)電(dian)(dian)(dian)(dian)(dian)）繼電(dian)(dian)(dian)(dian)(dian)器(qi)經一(yi)定延(yan)(yan)時，才(cai)能(neng)恢(hui)復(fu)到(dao)動(dong)(dong)(dong)作(zuo)前狀態，從線圈斷(duan)電(dian)(dian)(dian)(dian)(dian)到(dao)觸(chu)頭(tou)復(fu)位所需時間(jian)(jian)為斷(duan)電(dian)(dian)(dian)(dian)(dian)延(yan)(yan)時時間(jian)(jian)。智能(neng)低壓配(pei)電(dian)(dian)(dian)(dian)(dian)箱費用低壓開關柜可以根據不同的電(dian)(dian)(dian)(dian)(dian)氣(qi)負(fu)荷變化進行自動(dong)(dong)(dong)調整。

GGD型(xing)號結構(gou)(gou)特點： GGD型(xing)交流低(di)壓(ya)配(pei)電柜(ju)(ju)(ju)的(de)(de)(de)柜(ju)(ju)(ju)體(ti)采用(yong)通(tong)用(yong)柜(ju)(ju)(ju)形式，構(gou)(gou)架用(yong)8MF冷(leng)彎(wan)型(xing)鋼局部焊接組裝(zhuang)(zhuang)而(er)成，并有(you)20模的(de)(de)(de)安(an)裝(zhuang)(zhuang)孔(kong)，通(tong)用(yong)系數高(gao)。GGD柜(ju)(ju)(ju)充(chong)分(fen)考(kao)慮散熱(re)問題。在柜(ju)(ju)(ju)體(ti)上(shang)(shang)下(xia)兩端(duan)均有(you)不(bu)同數量的(de)(de)(de)散熱(re)槽(cao)孔(kong)，當柜(ju)(ju)(ju)內電器元件發(fa)熱(re)后(hou)，熱(re)量上(shang)(shang)升(sheng)，通(tong)過上(shang)(shang)端(duan)槽(cao)孔(kong)排出，而(er)冷(leng)風不(bu)斷地(di)由下(xia)端(duan)槽(cao)孔(kong)補(bu)充(chong)進柜(ju)(ju)(ju)，使(shi)密封的(de)(de)(de)柜(ju)(ju)(ju)體(ti)自下(xia)而(er)上(shang)(shang)形成一個(ge)自然通(tong)風道(dao)，達到散熱(re)的(de)(de)(de)目(mu)的(de)(de)(de)。 GGD柜(ju)(ju)(ju)按照現代化(hua)工業(ye)產(chan)品造型(xing)設計的(de)(de)(de)要(yao)求，采用(yong)黃金(jin)分(fen)割比的(de)(de)(de)方(fang)法設計柜(ju)(ju)(ju)體(ti)外(wai)形和各(ge)部分(fen)的(de)(de)(de)分(fen)割尺(chi)寸，使(shi)整柜(ju)(ju)(ju)美觀(guan)大方(fang)，面目(mu)一新。柜(ju)(ju)(ju)體(ti)的(de)(de)(de)頂蓋在需要(yao)時可拆(chai)除，便于現場主母線的(de)(de)(de)裝(zhuang)(zhuang)配(pei)和調整，柜(ju)(ju)(ju)頂的(de)(de)(de)四(si)角裝(zhuang)(zhuang)有(you)吊環(huan)，用(yong)于起吊和裝(zhuang)(zhuang)運。 柜(ju)(ju)(ju)體(ti)的(de)(de)(de)防護等(deng)級為IP30，用(yong)戶也可根據(ju)環(huan)境(jing)的(de)(de)(de)要(yao)求在IP20—IP40之間選擇(ze)。

什么是三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)路的(de)(de)(de)(de)(de)(de)(de)中(zhong)性(xing)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)？什么是三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)三(san)(san)(san)(san)(san)(san)(san)線(xian)(xian)(xian)(xian)(xian)制(zhi)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)？什么是三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)四(si)線(xian)(xian)(xian)(xian)(xian)制(zhi)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)？要把(ba)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)(de)(de)(de)三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)繞阻(zu)聯結(jie)成(cheng)星形(xing)，必須遵守一(yi)定的(de)(de)(de)(de)(de)(de)(de)聯結(jie)規則。這個規則就(jiu)是把(ba)三(san)(san)(san)(san)(san)(san)(san)根(gen)繞阻(zu)的(de)(de)(de)(de)(de)(de)(de)X、Y、Z連在(zai)一(yi)起（見(jian)下圖），這點就(jiu)叫(jiao)(jiao)(jiao)做發電(dian)(dian)(dian)(dian)(dian)(dian)(dian)機的(de)(de)(de)(de)(de)(de)(de)中(zhong)性(xing)點，通常又(you)叫(jiao)(jiao)(jiao)零點。三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)(de)(de)(de)星形(xing)接(jie)(jie)法：星形(xing)或三(san)(san)(san)(san)(san)(san)(san)角形(xing)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)(de)(de)三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)交(jiao)流(liu)系統中(zhong)，用三(san)(san)(san)(san)(san)(san)(san)根(gen)導(dao)線(xian)(xian)(xian)(xian)(xian)傳(chuan)輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)的(de)(de)(de)(de)(de)(de)(de)方式(shi)，叫(jiao)(jiao)(jiao)三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)三(san)(san)(san)(san)(san)(san)(san)線(xian)(xian)(xian)(xian)(xian)制(zhi)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。三(san)(san)(san)(san)(san)(san)(san)根(gen)導(dao)線(xian)(xian)(xian)(xian)(xian)分別接(jie)(jie)在(zai)星形(xing)或三(san)(san)(san)(san)(san)(san)(san)角形(xing)接(jie)(jie)線(xian)(xian)(xian)(xian)(xian)的(de)(de)(de)(de)(de)(de)(de)端(duan)點A、B、C。三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)(de)(de)(de)(de)(de)(de)三(san)(san)(san)(san)(san)(san)(san)角形(xing)接(jie)(jie)法：三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)交(jiao)流(liu)星形(xing)（也叫(jiao)(jiao)(jiao)“Y接(jie)(jie)”）系統中(zhong)，用四(si)根(gen)導(dao)線(xian)(xian)(xian)(xian)(xian)傳(chuan)輸(shu)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)的(de)(de)(de)(de)(de)(de)(de)方式(shi)，叫(jiao)(jiao)(jiao)三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)四(si)線(xian)(xian)(xian)(xian)(xian)制(zhi)供電(dian)(dian)(dian)(dian)(dian)(dian)(dian)。其中(zhong)三(san)(san)(san)(san)(san)(san)(san)根(gen)導(dao)線(xian)(xian)(xian)(xian)(xian)接(jie)(jie)在(zai)三(san)(san)(san)(san)(san)(san)(san)相(xiang)(xiang)(xiang)的(de)(de)(de)(de)(de)(de)(de)端(duan)點A、B、C，一(yi)根(gen)導(dao)線(xian)(xian)(xian)(xian)(xian)接(jie)(jie)在(zai)中(zhong)性(xing)點0。低壓(ya)開關柜采用可靠的(de)(de)(de)(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)(dian)(dian)流(liu)互感器和電(dian)(dian)(dian)(dian)(dian)(dian)(dian)壓(ya)互感器，能(neng)夠準(zhun)確測量電(dian)(dian)(dian)(dian)(dian)(dian)(dian)能(neng)參(can)數(shu)。

用(yong)途(tu)：裝(zhuang)置(zhi)適用(yong)于發電(dian)廠、石油、化(hua)工(gong)、冶金、紡織、高(gao)層建筑等行業的(de)(de)配(pei)(pei)電(dian)系(xi)(xi)統(tong)。在大型發電(dian)廠、石化(hua)系(xi)(xi)統(tong)等自動化(hua)程(cheng)度高(gao)，要求與計算機(ji)(ji)接口(kou)的(de)(de)場(chang)所，作(zuo)(zuo)為(wei)(wei)三相交流(liu)頻率(lv)(lv)50（60）Hz、額定工(gong)作(zuo)(zuo)電(dian)壓(ya)(ya)為(wei)(wei)380V（400）、（600），額定電(dian)流(liu)4000A以下的(de)(de)發、供電(dian)系(xi)(xi)統(tong)中(zhong)(zhong)的(de)(de)配(pei)(pei)電(dian)、電(dian)動機(ji)(ji)集中(zhong)(zhong)控制、無功功率(lv)(lv)補償(chang)使(shi)用(yong)的(de)(de)低壓(ya)(ya)成(cheng)套配(pei)(pei)電(dian)裝(zhuang)置(zhi)。裝(zhuang)置(zhi)符合IEC439—1《低壓(ya)(ya)成(cheng)套開(kai)關(guan)設(she)(she)備(bei)(bei)和控制設(she)(she)備(bei)(bei)》、GB7251《低壓(ya)(ya)成(cheng)套開(kai)關(guan)設(she)(she)備(bei)(bei)》、ZBK36001《低壓(ya)(ya)抽(chou)出(chu)式(shi)成(cheng)套開(kai)關(guan)設(she)(she)備(bei)(bei)》等標準。低壓(ya)(ya)開(kai)關(guan)柜能夠(gou)實(shi)現電(dian)力系(xi)(xi)統(tong)的(de)(de)遠程(cheng)監測和故障(zhang)診斷。交流(liu)低壓(ya)(ya)配(pei)(pei)電(dian)柜怎么樣

低壓(ya)開關(guan)柜(ju)采(cai)用可靠的絕緣(yuan)材料，能夠防止電(dian)(dian)氣(qi)設(she)備的漏電(dian)(dian)和短路。交流低壓(ya)配電(dian)(dian)柜(ju)怎(zen)么樣

成(cheng)套基礎知(zhi)識：1、在低(di)壓成(cheng)套開(kai)關(guan)(guan)設(she)備(bei)中帶電(dian)(dian)(dian)(dian)體的電(dian)(dian)(dian)(dian)氣間隙和爬電(dian)(dian)(dian)(dian)距離達不到要求時，應(ying)采取什(shen)么措施(shi)進行補救(jiu)？對(dui)其(qi)材料有和特(te)殊要求？應(ying)采用絕(jue)緣(yuan)措施(shi)（絕(jue)緣(yuan)包扎、絕(jue)緣(yuan)套管、噴涂環氧(yang)粉(fen)末等）其(qi)絕(jue)緣(yuan)材料應(ying)是自(zi)熄 性的。2、當低(di)壓成(cheng)套開(kai)關(guan)(guan)設(she)備(bei)的蓋(gai)、門、覆板和類似部件上裝(zhuang)設(she)有電(dian)(dian)(dian)(dian)氣元(yuan)件時是否可(ke)以通(tong)過一般的金(jin)(jin)屬螺(luo)釘或(huo)金(jin)(jin)屬鉸鏈(lian)(lian)連(lian)接(jie)(jie)就足(zu)以保護電(dian)(dian)(dian)(dian)路的連(lian)續性？不可(ke)儀通(tong)過一般的金(jin)(jin)屬螺(luo)釘連(lian)接(jie)(jie)或(huo)金(jin)(jin)屬鉸鏈(lian)(lian)連(lian)接(jie)(jie)來(lai)實施(shi)保護電(dian)(dian)(dian)(dian)路連(lian)接(jie)(jie)性，而必須裝(zhuang)設(she)專(zhuan)有接(jie)(jie)地線(xian)。交流低(di)壓配(pei)電(dian)(dian)(dian)(dian)柜怎么樣

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