發電機是怎么發電的
發電(dian)機(ji)(ji)(ji)是指將其他形式的(de)能源轉換成電(dian)能的(de)機(ji)(ji)(ji)械(xie)設(she)備,它由(you)(you)水輪機(ji)(ji)(ji)、汽輪機(ji)(ji)(ji)、柴(chai)油機(ji)(ji)(ji)或其他動力(li)機(ji)(ji)(ji)械(xie)驅動,將水流(liu)(liu),氣流(liu)(liu),燃料燃燒或原子(zi)核裂變產生的(de)能量(liang)轉化(hua)為(wei)機(ji)(ji)(ji)械(xie)能傳給發電(dian)機(ji)(ji)(ji),再由(you)(you)發電(dian)機(ji)(ji)(ji)轉換為(wei)電(dian)能。
發電(dian)(dian)機的(de)(de)形式很多,但其工作原理都基(ji)于(yu)電(dian)(dian)磁(ci)感應定律(lv)和(he)電(dian)(dian)磁(ci)力(li)定律(lv)。因此,其構造的(de)(de)一(yi)般原則是:用適當(dang)的(de)(de)導磁(ci)和(he)導電(dian)(dian)材料構成(cheng)互相進行電(dian)(dian)磁(ci)感應的(de)(de)磁(ci)路和(he)電(dian)(dian)路,以產生電(dian)(dian)磁(ci)功率,達到(dao)能量轉換的(de)(de)目的(de)(de)。
發電機不發電是什么原因
發電(dian)機不發電(dian)有這些原因:發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)過(guo)熱;發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)中(zhong)性線對地有異常電(dian)(dian)(dian)(dian)壓(ya)(ya);發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)電(dian)(dian)(dian)(dian)流過(guo)大;發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)端電(dian)(dian)(dian)(dian)壓(ya)(ya)過(guo)高;功率不足;定子(zi)繞組(zu)絕緣(yuan)擊穿、短路(lu);定子(zi)鐵(tie)芯松馳;鐵(tie)芯片間短路(lu);發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)失去剩磁,起動(dong)時(shi)不能發(fa)(fa)電(dian)(dian)(dian)(dian);自動(dong)勵磁裝(zhuang)置的勵磁電(dian)(dian)(dian)(dian)抗器溫度過(guo)高;發(fa)(fa)電(dian)(dian)(dian)(dian)機(ji)(ji)起動(dong)后,電(dian)(dian)(dian)(dian)壓(ya)(ya)升不起來。
發電機不發電檢查方法
萬用表(biao)電(dian)壓檔檢(jian)測(ce);外接電(dian)流表(biao)檢(jian)測(ce);試燈(汽車燈泡(pao))法;改變(bian)發動(dong)機轉(zhuan)速觀(guan)察大(da)燈亮(liang)度法;拆下蓄電(dian)池搭鐵(tie)看發動(dong)機是否工作法。
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。