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202211-16
箱式變壓器可以承受多少kW的用電量？
這個(ge)(ge)問題(ti)首先涉及(ji)到一個(ge)(ge)概念，那(nei)(nei)就是kVA和kW之(zhi)間的(de)(de)關系及(ji)區(qu)別。 kVA（千伏(fu)安）是視(shi)在(zai)功(gong)(gong)(gong)(gong)率(lv)(lv)的(de)(de)單位(wei)，kW（千瓦）則是有(you)(you)(you)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)的(de)(de)單位(wei)。除了視(shi)在(zai)功(gong)(gong)(gong)(gong)率(lv)(lv)和有(you)(you)(you)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)以外，還有(you)(you)(you)無(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)，無(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)的(de)(de)單位(wei)是kvar（千乏）。 那(nei)(nei)有(you)(you)(you)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)、無(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)、視(shi)在(zai)功(gong)(gong)(gong)(gong)率(lv)(lv)它們有(you)(you)(you)啥(sha)區(qu)別呢(ni)？ 有(you)(you)(you)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)是用電器實際(ji)消耗(hao)的(de)(de)功(gong)(gong)(gong)(gong)率(lv)(lv)，即電能(neng)轉換為其他形式能(neng)量(liang)(liang)。 比(bi)如(ru)日常大家所交的(de)(de)電費，交的(de)(de)就是有(you)(you)(you)功(gong)(gong)(gong)(gong)電量(liang)(liang)； 無(wu)功(gong)(gong)(gong)(gong)功(gong)(gong)(gong)(gong)率(lv)(lv)是指(zhi)某些設(she)備(bei)并沒(mei)有(you)(you)(you)真正消耗(hao)電，它只是暫時把(ba)電存起來(lai)的(de)(de)那(nei)(nei)部分功(gong)(gong)(gong)(gong)率(lv)(lv)。 比(bi)如(ru)某個(ge)(ge)用電設(she)備(bei)里面 -
202211-15
柴油發電機廠家教大家如何訂購柴油發電機組
柴(chai)油發(fa)(fa)電(dian)(dian)機(ji)(ji)組屬自備電(dian)(dian)站交流(liu)供電(dian)(dian)設備的(de)一(yi)種類型(xing)，是(shi)一(yi)種小型(xing)獨立的(de)發(fa)(fa)電(dian)(dian)設備，以內燃機(ji)(ji)作動(dong)力，驅動(dong)同(tong)步(bu)交流(liu)發(fa)(fa)電(dian)(dian)機(ji)(ji)而(er)發(fa)(fa)電(dian)(dian)。 現代(dai)柴(chai)油發(fa)(fa)電(dian)(dian)機(ji)(ji)組由(you)柴(chai)油機(ji)(ji)，三相交流(liu)無刷同(tong)步(bu)發(fa)(fa)電(dian)(dian)機(ji)(ji)、控(kong)制箱(xiang)（屏）、散熱(re)水(shui)箱(xiang)、聯軸(zhou)器、燃油箱(xiang)、消聲器及公共底(di)座等組件組成鋼(gang)性整(zheng)體(ti)(ti)(ti)。柴(chai)油機(ji)(ji)的(de)飛(fei)輪(lun)殼與發(fa)(fa)電(dian)(dian)機(ji)(ji)前端(duan)蓋的(de)軸(zhou)向(xiang)采(cai)用(yong)(yong)凸肩定(ding)(ding)位(wei)直接連(lian)接構成一(yi)體(ti)(ti)(ti)，并(bing)采(cai)用(yong)(yong)圓柱型(xing)的(de)彈性聯軸(zhou)器由(you)飛(fei)輪(lun)直接驅動(dong)發(fa)(fa)電(dian)(dian)機(ji)(ji)的(de)旋轉，其聯接方(fang)式由(you)螺釘固定(ding)(ding)在一(yi)起，使兩(liang)者聯接成一(yi)鋼(gang)體(ti)(ti)(ti)，保(bao)證了柴(chai)油機(ji)(ji)的(de)曲軸(zhou)與發(fa)(fa)電(dian)(dian)機(ji)(ji)轉子(zi)的(de)同(tong)心度(du)在規定(ding)(ding)的(de)范圍(wei)內。 柴(chai)油發(fa)(fa)電(dian)(dian)機(ji)(ji)組是(shi)由(you)內燃機(ji)(ji)和同(tong)步(bu)發(fa)(fa)電(dian)(dian)機(ji)(ji) -
202211-14
關于低壓開關柜開關的連接問題
關(guan)(guan)于(yu)低(di)壓(ya)(ya)開(kai)(kai)關(guan)(guan)柜(ju)(ju)開(kai)(kai)關(guan)(guan)的連接和(he)(he)空載(zai)耗(hao)損問題(ti)。低(di)壓(ya)(ya)開(kai)(kai)關(guan)(guan)柜(ju)(ju)開(kai)(kai)關(guan)(guan)的連接問題(ti)： 1.當低(di)壓(ya)(ya)開(kai)(kai)關(guan)(guan)柜(ju)(ju)安(an)裝(zhuang)在(zai)墻(qiang)上時，應使用對(dui)開(kai)(kai)螺栓(膨脹螺栓)固定(ding)。螺栓的長度(du)(du)一般(ban)為預(yu)埋深度(du)(du)(75 ~ 150 mm)、箱底(di)板(ban)厚度(du)(du)、螺母和(he)(he)墊圈厚度(du)(du)之(zhi)和(he)(he)，加上約5 mm的“頭出余量”.對(dui)于(yu)較(jiao)小的開(kai)(kai)關(guan)(guan)柜(ju)(ju)，也(ye)可以在(zai)安(an)裝(zhuang)處(chu)預(yu)埋木(mu)磚(根據開(kai)(kai)關(guan)(guan)柜(ju)(ju)或配電板(ban)四(si)角的安(an)裝(zhuang)孔(kong))，然后用木(mu)螺絲將開(kai)(kai)關(guan)(guan)柜(ju)(ju)或配電板(ban)固定(ding)在(zai)木(mu)磚處(chu)。 ??2.低(di)壓(ya)(ya)開(kai)(kai)關(guan)(guan)柜(ju)(ju)安(an)裝(zhuang)在(zai)暗處(chu)，嵌入墻(qiang)內。砌墻(qiang)時，預(yu)留孔(kong)應比開(kai)(kai)關(guan)(guan)柜(ju)(ju)的長度(du)(du)和(he)(he)寬度(du)(du)大20毫米(mi)左右。預(yu)留深度(du)(du)為開(kai)(kai)關(guan)(guan)柜(ju)(ju)厚度(du)(du)加上孔(kong)內壁 -
202211-11
柴油發電機組散熱器保養方法
柴油(you)發動機(ji)長(chang)時(shi)間運轉，會持(chi)續(xu)散(san)發出較高(gao)的(de)熱(re)(re)量(liang)，此(ci)時(shi)散(san)熱(re)(re)器(qi)(qi)(qi)的(de)作用(yong)無可(ke)厚非，那么如(ru)何(he)保(bao)養(yang)柴油(you)發電機(ji)組散(san)熱(re)(re)器(qi)(qi)(qi)呢(ni)？一(yi)起跟隨小編來(lai)看看。 一(yi)、運行注意事項 運行中(zhong)的(de)柴油(you)發電機(ji)組散(san)熱(re)(re)器(qi)(qi)(qi)的(de)冷(leng)卻(que)液通常是很熱(re)(re)的(de)，并(bing)(bing)且是有壓力的(de)，不可(ke)以在未冷(leng)卻(que)時(shi)整理散(san)熱(re)(re)器(qi)(qi)(qi)或(huo)拆除(chu)管子，不要(yao)在風扇轉動時(shi)對散(san)熱(re)(re)器(qi)(qi)(qi)工作或(huo)打開風扇保(bao)護罩。 二、避免被腐蝕(shi) 散(san)熱(re)(re)器(qi)(qi)(qi)有時(shi)出現故障，腐蝕(shi)一(yi)般(ban)是主(zhu)要(yao)原因，因為(wei)在使用(yong)過(guo)程中(zhong)，水(shui)中(zhong)的(de)空氣(qi)(qi)會加速腐蝕(shi)進程。因此(ci)要(yao)經常保(bao)持(chi)管口接(jie)頭(tou)處(chu)不能泄露(lu)，并(bing)(bing)從散(san)熱(re)(re)器(qi)(qi)(qi)的(de)頂部定期加水(shui)排放空氣(qi)(qi)，以保(bao)持(chi)系統(tong)內(nei) -
202211-10
柴油發電機組啟動不起來什么原因
柴油發電(dian)(dian)(dian)(dian)機組啟動(dong)(dong)困難是(shi)什(shen)么原因(yin)導致(zhi)？有以下四大類原因(yin)，一起跟(gen)隨(sui)小編(bian)來看(kan)(kan)看(kan)(kan)。 1、電(dian)(dian)(dian)(dian)池(chi)故障(zhang) 發電(dian)(dian)(dian)(dian)機無法(fa)(fa)啟動(dong)(dong)的最常見原因(yin)之一是(shi)電(dian)(dian)(dian)(dian)池(chi)故障(zhang)。這通常可能是(shi)由于連(lian)接(jie)松動(dong)(dong)或硫酸(suan)鹽化(鉛(qian)酸(suan)蓄(xu)電(dian)(dian)(dian)(dian)池(chi)極(ji)板上的硫酸(suan)鉛(qian)晶體堆積)造成的。當電(dian)(dian)(dian)(dian)解(jie)液(電(dian)(dian)(dian)(dian)池(chi)酸(suan))中(zhong)的硫酸(suan)鹽分子放電(dian)(dian)(dian)(dian)太深時，會導致(zhi)電(dian)(dian)(dian)(dian)池(chi)極(ji)板上的積垢，導致(zhi)電(dian)(dian)(dian)(dian)池(chi)無法(fa)(fa)提(ti)供足(zu)夠(gou)的電(dian)(dian)(dian)(dian)流。 電(dian)(dian)(dian)(dian)池(chi)故障(zhang)也(ye)可能是(shi)由于充電(dian)(dian)(dian)(dian)器斷路器斷開不可操(cao)作(zuo)造成的，通常是(shi)由于電(dian)(dian)(dian)(dian)池(chi)充電(dian)(dian)(dian)(dian)器裝置本身的故障(zhang)或交流電(dian)(dian)(dian)(dian)源被跳閘的斷路器斷開。此時充電(dian)(dian)(dian)(dian)器已經(jing)關閉并且沒有再(zai)次打開，這種情況經(jing)常發生(sheng)在已經(jing)進行(xing)了維修或 -
202211-09
淺析：輸變電設施助力防腐涂料新發展
隨著我國(guo)(guo)國(guo)(guo)民經濟的(de)發展，電(dian)(dian)(dian)力行(xing)業(ye)(ye)(ye)作為國(guo)(guo)民經濟的(de)基礎性行(xing)業(ye)(ye)(ye)獲得較快發展。由(you)于我國(guo)(guo)地域廣闊、能(neng)源(yuan)分布不均(jun)衡，使(shi)得我國(guo)(guo)輸(shu)(shu)(shu)變電(dian)(dian)(dian)設(she)備(bei)行(xing)業(ye)(ye)(ye)近(jin)幾年(nian)(nian)獲得較快發展。國(guo)(guo)家實施能(neng)源(yuan)結構(gou)調整戰略，需要長(chang)距離輸(shu)(shu)(shu)送電(dian)(dian)(dian)力，特高(gao)壓(ya)輸(shu)(shu)(shu)變電(dian)(dian)(dian)設(she)備(bei)會有較快增長(chang)，而且近(jin)幾年(nian)(nian)輸(shu)(shu)(shu)變電(dian)(dian)(dian)設(she)備(bei)的(de)出口(kou)也呈(cheng)增長(chang)態(tai)勢，預(yu)計我國(guo)(guo)輸(shu)(shu)(shu)變電(dian)(dian)(dian)設(she)備(bei)行(xing)業(ye)(ye)(ye)還有一段(duan)較長(chang)時間的(de)增長(chang)期。 ??中國(guo)(guo)輸(shu)(shu)(shu)配電(dian)(dian)(dian)行(xing)業(ye)(ye)(ye)2015年(nian)(nian)規模將(jiang)接近(jin)3200億元 ??根據國(guo)(guo)家規劃(hua)，“十二五”是我國(guo)(guo)智能(neng)電(dian)(dian)(dian)網全面建(jian)設(she)階段(duan)，在(zai)我國(guo)(guo)多年(nian)(nian)堅(jian)持智能(neng)電(dian)(dian)(dian)網建(jian)設(she)規劃(hua)的(de)驅動(dong)下，中國(guo)(guo)輸(shu)(shu)(shu)配電(dian)(dian)(dian)行(xing)業(ye)(ye)(ye)在(zai)2015年(nian)(nian)前 -
202211-07
柴油發電機油壓力過低的處理方法
在發電機(ji)組運行中(zhong)(zhong)當油(you)(you)壓力過低時(shi)應該采取(qu)哪些措施呢？ 一、發動(dong)機(ji)在運行中(zhong)(zhong)發現機(ji)油(you)(you)壓力過低，應及(ji)時(shi)停(ting)車(che)，約5min后(hou)檢查油(you)(you)底殼的(de)(de)(de)機(ji)油(you)(you)平面是(shi)否低于(yu)規定值(zhi)，若低于(yu)機(ji)油(you)(you)標尺的(de)(de)(de)下(xia)刻線，應隨時(shi)添加同牌(pai)號的(de)(de)(de)機(ji)油(you)(you)。 二(er)、抽(chou)出(chu)機(ji)油(you)(you)尺，查看機(ji)油(you)(you)有無(wu)變質和水分。如(ru)果(guo)機(ji)油(you)(you)變質，應給予更換，并清洗(xi)機(ji)油(you)(you)道和濾清器(qi)芯;機(ji)油(you)(you)中(zhong)(zhong)有水分，應查明水的(de)(de)(de)來源予以排除，并更換新機(ji)油(you)(you)。 三、由于(yu)季節變化時(shi)未及(ji)時(shi)換季使(shi)用合(he)適粘度的(de)(de)(de)機(ji)油(you)(you)，或誤(wu)加劣(lie)質機(ji)油(you)(you)或不符合(he)牌(pai)號等級的(de)(de)(de)機(ji)油(you)(you)，均應及(ji)時(shi)換用適合(he)季節粘度或牌(pai)號的(de)(de)(de)機(ji)油(you)(you)。 四、在使(shi) -
202211-05
你正確使用了箱式變壓器嗎？
1． 變(bian)(bian)壓(ya)(ya)器(qi)(qi)的并(bing)(bing)列(lie)操作(zuo)： 電(dian)(dian)壓(ya)(ya)比（允(yun)許相差(cha)±0．5%）、阻抗(kang)電(dian)(dian)壓(ya)(ya)（允(yun)許相差(cha)±10%）、接(jie)線組別必須相同(tong)的變(bian)(bian)壓(ya)(ya)器(qi)(qi)方(fang)可并(bing)(bing)列(lie)運(yun)行(xing)，若電(dian)(dian)壓(ya)(ya)比和阻抗(kang)電(dian)(dian)壓(ya)(ya)不同(tong)，則必須經(jing)過(guo)核算，在并(bing)(bing)列(lie)運(yun)行(xing)時任(ren)一臺都不過(guo)負(fu)荷時方(fang)可并(bing)(bing)列(lie)。（容量為3:1） 變(bian)(bian)壓(ya)(ya)器(qi)(qi)并(bing)(bing)列(lie)、解(jie)列(lie)前應(ying)檢(jian)查負(fu)荷分配情況(kuang)，并(bing)(bing)將檢(jian)查語句寫入倒閘操作(zuo)票中。 新投(tou)運(yun)或(huo)經(jing)大修的變(bian)(bian)壓(ya)(ya)器(qi)(qi)并(bing)(bing)列(lie)前，應(ying)先(xian)進行(xing)核相，確認(ren)無誤后(hou)方(fang)可進行(xing)并(bing)(bing)列(lie)。 2．變(bian)(bian)壓(ya)(ya)器(qi)(qi)的停(ting)送電(dian)(dian) 變(bian)(bian)壓(ya)(ya)器(qi)(qi)停(ting)、送電(dian)(dian)前，應(ying)考慮(lv)中性點的倒換問題，確保(bao)停(ting)送電(dian)(dian)后(hou)直(zhi)接(jie)接(jie)地(di)的中性點數目不變(bian)(bian) -
202211-04
為什么要購買防雨型柴油發電機組
隨著(zhu)柴油(you)發(fa)(fa)電(dian)機(ji)組(zu)在生產中的使用(yong)(yong)大大提高，各(ge)種類型(xing)(xing)的柴油(you)發(fa)(fa)電(dian)機(ji)組(zu)有(you)著(zhu)不一(yi)樣的使用(yong)(yong)環(huan)境(jing)，今天給您帶來防(fang)(fang)(fang)(fang)雨(yu)(yu)型(xing)(xing)發(fa)(fa)電(dian)機(ji)組(zu)的介紹(shao)。 很多用(yong)(yong)戶(hu)可能會(hui)產生疑問(wen)：有(you)必要購買(mai)防(fang)(fang)(fang)(fang)雨(yu)(yu)型(xing)(xing)柴油(you)發(fa)(fa)電(dian)機(ji)組(zu)？要知道防(fang)(fang)(fang)(fang)雨(yu)(yu)型(xing)(xing)發(fa)(fa)電(dian)機(ji)組(zu)主要是(shi)加了(le)外罩(zhao)，防(fang)(fang)(fang)(fang)止下雨(yu)(yu)時雨(yu)(yu)水進入，下雨(yu)(yu)時就(jiu)算露天用(yong)(yong)也照常(chang)運行，柴油(you)發(fa)(fa)電(dian)機(ji)組(zu)采用(yong)(yong)專用(yong)(yong)防(fang)(fang)(fang)(fang)雨(yu)(yu)底座，上方(fang)設(she)有(you)用(yong)(yong)于防(fang)(fang)(fang)(fang)雨(yu)(yu)的罩(zhao)體(ti)，裝有(you)防(fang)(fang)(fang)(fang)雨(yu)(yu)門(men)(men)，安裝于罩(zhao)體(ti)上并(bing)與防(fang)(fang)(fang)(fang)雨(yu)(yu)門(men)(men)的下邊活動連接用(yong)(yong)于撐開或者閉合(he)防(fang)(fang)(fang)(fang)雨(yu)(yu)門(men)(men)的伸縮桿。優選(xuan)防(fang)(fang)(fang)(fang)雨(yu)(yu)門(men)(men)與罩(zhao)體(ti)鉸接處的上方(fang)設(she)有(you)擋(dang)雨(yu)(yu)板，罩(zhao)體(ti)的兩側為雙(shuang)門(men)(men)開啟，方(fang)便維修人員維修或維護。 防(fang)(fang)(fang)(fang)雨(yu)(yu)型(xing)(xing)電(dian)站(zhan)適用(yong)(yong)于 -
202211-03
箱式變電站過電壓現象的原因及應對措施
1、過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)概(gai)念(nian)： 當(dang)箱式變(bian)電(dian)(dian)(dian)站中的(de)(de)(de)變(bian)壓(ya)(ya)(ya)器(qi)運行時，繼電(dian)(dian)(dian)保護校驗(yan)儀如(ru)果(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)超過(guo)(guo)(guo)它的(de)(de)(de)最大(da)允許工作電(dian)(dian)(dian)壓(ya)(ya)(ya)，就稱(cheng)為(wei)變(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)。 2、過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)的(de)(de)(de)分類： 過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)往往會對變(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)絕(jue)緣造(zao)成(cheng)很大(da)的(de)(de)(de)危害,甚至使絕(jue)緣擊(ji)穿。 過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)可(ke)分為(wei)大(da)氣過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)和(he)操(cao)(cao)作過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)兩(liang)種： (1)大(da)氣過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)：輸電(dian)(dian)(dian)線路直接遭雷擊(ji)或(huo)(huo)雷云放電(dian)(dian)(dian)時,電(dian)(dian)(dian)磁場的(de)(de)(de)劇烈變(bian)化所(suo)引起的(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)稱(cheng)為(wei)大(da)氣過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya); (2)操(cao)(cao)作過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)：當(dang)箱式變(bian)電(dian)(dian)(dian)站中的(de)(de)(de)變(bian)壓(ya)(ya)(ya)器(qi)或(huo)(huo)線路上的(de)(de)(de)開關進行合閘(zha)或(huo)(huo)拉(la)閘(zha)操(cao)(cao)作時,因系統中電(dian)(dian)(dian)磁能(neng)量振蕩和(he)積聚(ju)而產生的(de)(de)(de)過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)稱(cheng)為(wei)操(cao)(cao)作過(guo)(guo)(guo)電(dian)(dian)(dian)壓(ya)(ya)(ya)。 變(bian)壓(ya)(ya)(ya)器(qi)的(de)(de)(de)這