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發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)的使(shi)用壽命。 　　在選擇柴油發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)出租時(shi)，可以事(shi)先測算好自(zi)己所需(xu)負(fu)荷(he)(he)的大小，然后(hou)根據負(fu)荷(he)(he)大小來選購發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)組(zu)(zu)。 　　1、首先發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)有KVA和(he)KW之(zhi)分。KVA是(shi)視(shi)在功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)，KW是(shi)有效功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)，他(ta)們之(zhi)間的關系是(shi)1KVA=0.8KW，進口機(ji)(ji)(ji)組(zu)(zu)一(yi)般用KVA表示功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)單位，而國(guo)內用電(dian)(dian)(dian)(dian)(dian)(dian)設備(bei)(bei)一(yi)般都用KW表示，所以核算功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)時(shi)應把KVA打8折換算成(cheng)KW。 　　2、其次功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)還(huan)有長(chang)行(xing)（額(e)定）功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)和(he)后(hou)備(bei)(bei)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)之(zhi)分，長(chang)行(xing)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)為(wei)發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)可以連續12小時(shi)運行(xing)的功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)，而柴油發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)出租備(bei)(bei)功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)只能在12小時(shi)連續運行(xing)中運行(xing)一(yi)小時(shi)。 　　3、另外，確定柴油發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)出租的功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)并非把所有用電(dian)(dian)(dian)(dian)(dian)(dian)器功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)簡單相(xiang)加(jia)，還(huan)需(xu)要考慮(lv)用電(dian)(dian)(dian)(dian)(dian)(dian)器的啟(qi)動(dong)(dong)方(fang)式。一(yi)般啟(qi)動(dong)(dong)方(fang)式分為(wei)直接(jie)啟(qi)動(dong)(dong)和(he)降壓啟(qi)動(dong)(dong)或變頻啟(qi)動(dong)(dong)，前者(zhe)啟(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)工作電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)6倍左(zuo)右(you)，瞬(shun)間功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)也會(hui)達到(dao)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)6倍；后(hou)者(zhe)啟(qi)動(dong)(dong)電(dian)(dian)(dian)(dian)(dian)(dian)流(liu)為(wei)3倍左(zuo)右(you)，瞬(shun)間功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)也為(wei)額(e)定功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)3倍。因(yin)此(ci)，選擇柴油發(fa)(fa)(fa)電(dian)(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)出租功(gong)(gong)(gong)(gong)率(lv)(lv)(lv)(lv)(lv)時(shi)，除(chu)了需(xu)要考慮(lv)所有用電(dian)(dian)(dian)(dian)(dian)(dian)器功(gong)(gong)(gong)(gong)

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