首先，檢(jian)查(cha)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)的(de)絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)阻，這項工作必須在電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)連接到開關設備(bei)之(zhi)前(qian)完成(cheng)，因為啟(qi)動(dong)電(dian)(dian)(dian)(dian)(dian)路(lu)是由晶體閘(zha)的(de)管元件組(zu)成(cheng)的(de)。當電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)連接到開關柜時，如果(guo)用高壓(ya)表(biao)測量電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)的(de)絕緣(yuan)電(dian)(dian)(dian)(dian)(dian)阻，就(jiu)會損壞晶體閘(zha)的(de)燈(deng)管，負載轉動(dong)時，檢(jian)查(cha)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)是否正常轉動(dong)，靈活，否則無(wu)法啟(qi)動(dong)。檢(jian)查(cha)風扇、電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)的(de)、開關設備(bei)的(de)參(can)數。需要(yao)檢(jian)查(cha)的(de)參(can)數包括電(dian)(dian)(dian)(dian)(dian)壓(ya)、電(dian)(dian)(dian)(dian)(dian)流、電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)的(de)功率(lv)和極數，調試順序(xu)為手動(dong)轉動(dong)、空(kong)投(tou)控(kong)制電(dian)(dian)(dian)(dian)(dian)路(lu)、電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)空(kong)轉、負載運行。

開關(guan)設備(bei)起動(dong)方式和起動(dong)時間(jian)(jian)的選擇。對于一(yi)般的電(dian)源開關(guan)設備(bei)，負(fu)載越(yue)大(da)，啟(qi)動(dong)時間(jian)(jian)越(yue)長；當對電(dian)網供電(dian)質量要求(qiu)較高時，可以(yi)選擇限流啟(qi)動(dong)方式。負(fu)載越(yue)大(da)，啟(qi)動(dong)時間(jian)(jian)越(yue)長。

高低壓開關柜生(sheng)產廠(chang)(chang)家或(huo)(huo)環(huan)保節(jie)能運(yun)(yun)行(xing)方式的(de)(de)(de)(de)開關(guan)(guan)(guan)柜(ju)經常在(zai)輕負荷下(xia)運(yun)(yun)行(xing)。這(zhe)很可(ke)(ke)能造成開關(guan)(guan)(guan)柜(ju)的(de)(de)(de)(de)負荷，因(yin)此(ci)應增加(jia)開關(guan)(guan)(guan)柜(ju)的(de)(de)(de)(de)容量。電(dian)(dian)(dian)(dian)機(ji)(ji)用于(yu)連續可(ke)(ke)變負載(zai)或(huo)(huo)間(jian)(jian)歇負載(zai)，周(zhou)期時(shi)間(jian)(jian)短。在(zai)這(zhe)種情況下(xia)，不允許電(dian)(dian)(dian)(dian)機(ji)(ji)短時(shi)間(jian)(jian)帶負荷運(yun)(yun)行(xing)。否(fou)則很可(ke)(ke)能造成運(yun)(yun)行(xing)中的(de)(de)(de)(de)司機(ji)(ji)負荷，所(suo)以(yi)(yi)要(yao)(yao)加(jia)大運(yun)(yun)力(li)。如果電(dian)(dian)(dian)(dian)機(ji)(ji)用于(yu)重復(fu)短時(shi)工時(shi)制的(de)(de)(de)(de)廠(chang)(chang)家，周(zhou)期時(shi)間(jian)(jian)低于(yu)初始(shi)時(shi)間(jian)(jian)間(jian)(jian)隔要(yao)(yao)求，可(ke)(ke)能會導(dao)致負荷開關(guan)(guan)(guan)設(she)(she)備(bei)的(de)(de)(de)(de)啟(qi)動周(zhou)期，所(suo)以(yi)(yi)要(yao)(yao)擴大開關(guan)(guan)(guan)設(she)(she)備(bei)的(de)(de)(de)(de)容量。如果有(you)些(xie)負荷過重，或(huo)(huo)者電(dian)(dian)(dian)(dian)網容量很小(xiao)，電(dian)(dian)(dian)(dian)機(ji)(ji)啟(qi)動時(shi)間(jian)(jian)過長(chang)，因(yin)此(ci)，開關(guan)(guan)(guan)柜(ju)的(de)(de)(de)(de)負荷是行(xing)程，在(zai)電(dian)(dian)(dian)(dian)機(ji)(ji)不損壞的(de)(de)(de)(de)前(qian)提下(xia)，可(ke)(ke)以(yi)(yi)適(shi)度(du)增加(jia)開關(guan)(guan)(guan)柜(ju)的(de)(de)(de)(de)容量。對于(yu)加(jia)速時(shi)間(jian)(jian)有(you)特殊要(yao)(yao)求的(de)(de)(de)(de)負載(zai)，電(dian)(dian)(dian)(dian)機(ji)(ji)加(jia)速時(shi)間(jian)(jian)長(chang)度(du)是慣性力(li)的(de)(de)(de)(de)相對定義。有(you)些(xie)負載(zai)需要(yao)(yao)很短的(de)(de)(de)(de)加(jia)速時(shi)間(jian)(jian)，所(suo)以(yi)(yi)電(dian)(dian)(dian)(dian)機(ji)(ji)的(de)(de)(de)(de)加(jia)速電(dian)(dian)(dian)(dian)流(liu)會比較(jiao)大。此(ci)時(shi)，可(ke)(ke)以(yi)(yi)適(shi)度(du)增加(jia)開關(guan)(guan)(guan)設(she)(she)備(bei)的(de)(de)(de)(de)容量。

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