發電機是怎么發電的
發(fa)電機(ji)(ji)是指將其(qi)他形式的能源(yuan)轉換成(cheng)電能的機(ji)(ji)械(xie)設備,它由水輪(lun)機(ji)(ji)、汽輪(lun)機(ji)(ji)、柴(chai)油機(ji)(ji)或其(qi)他動力機(ji)(ji)械(xie)驅(qu)動,將水流,氣(qi)流,燃料(liao)燃燒或原(yuan)子核裂變(bian)產(chan)生的能量轉化(hua)為機(ji)(ji)械(xie)能傳給發(fa)電機(ji)(ji),再(zai)由發(fa)電機(ji)(ji)轉換為電能。
發電(dian)(dian)機的形式很多,但其(qi)工作原理都基于電(dian)(dian)磁(ci)(ci)(ci)感應(ying)定律(lv)和電(dian)(dian)磁(ci)(ci)(ci)力定律(lv)。因此,其(qi)構造的一般原則是:用適當的導(dao)磁(ci)(ci)(ci)和導(dao)電(dian)(dian)材(cai)料(liao)構成(cheng)互相進行電(dian)(dian)磁(ci)(ci)(ci)感應(ying)的磁(ci)(ci)(ci)路和電(dian)(dian)路,以產生電(dian)(dian)磁(ci)(ci)(ci)功率,達到能量轉換的目的。
發電機不發電是什么原因
發(fa)電機不發(fa)電有這些原因:發電(dian)(dian)(dian)機(ji)過熱;發電(dian)(dian)(dian)機(ji)中性(xing)線對地有(you)異(yi)常電(dian)(dian)(dian)壓;發電(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)流過大;發電(dian)(dian)(dian)機(ji)端電(dian)(dian)(dian)壓過高(gao);功(gong)率(lv)不足(zu);定(ding)子(zi)繞組絕(jue)緣(yuan)擊穿(chuan)、短路(lu);定(ding)子(zi)鐵(tie)芯松(song)馳;鐵(tie)芯片間短路(lu);發電(dian)(dian)(dian)機(ji)失去剩磁,起動時不能發電(dian)(dian)(dian);自動勵磁裝置的(de)勵磁電(dian)(dian)(dian)抗器(qi)溫度過高(gao);發電(dian)(dian)(dian)機(ji)起動后,電(dian)(dian)(dian)壓升(sheng)不起來。
發電機不發電檢查方法
萬用(yong)表電(dian)壓(ya)檔檢測;外接電(dian)流表檢測;試燈(汽車燈泡)法(fa);改變發(fa)動機轉速(su)觀察(cha)大燈亮度法(fa);拆下蓄電(dian)池(chi)搭(da)鐵看(kan)發(fa)動機是否工(gong)作法(fa)。
什么樣的發電機比較好
一臺合格的發電機應該具備生產許可證、產品合格證、商標注冊證。其中產品合格證應該包括整個機組的合格證、內燃機合格證和發電機合格證。其次,機器噪音要低,一般好的品牌發電機,噪音都比較小。