發電機是怎么發電的
發電(dian)機(ji)(ji)是指將(jiang)其(qi)他形(xing)式(shi)的能(neng)(neng)(neng)(neng)源轉換(huan)成(cheng)電(dian)能(neng)(neng)(neng)(neng)的機(ji)(ji)械設(she)備,它(ta)由(you)水(shui)(shui)輪機(ji)(ji)、汽輪機(ji)(ji)、柴油機(ji)(ji)或其(qi)他動力機(ji)(ji)械驅動,將(jiang)水(shui)(shui)流,氣(qi)流,燃(ran)料燃(ran)燒或原子核裂變產生的能(neng)(neng)(neng)(neng)量轉化(hua)為機(ji)(ji)械能(neng)(neng)(neng)(neng)傳給發電(dian)機(ji)(ji),再由(you)發電(dian)機(ji)(ji)轉換(huan)為電(dian)能(neng)(neng)(neng)(neng)。
發電機的(de)(de)(de)形式(shi)很多,但(dan)其(qi)工(gong)作原理(li)都基于電磁(ci)感應(ying)定律(lv)(lv)和(he)(he)電磁(ci)力定律(lv)(lv)。因此,其(qi)構造(zao)的(de)(de)(de)一般原則是:用適當的(de)(de)(de)導(dao)磁(ci)和(he)(he)導(dao)電材料構成互相進行電磁(ci)感應(ying)的(de)(de)(de)磁(ci)路和(he)(he)電路,以(yi)產生電磁(ci)功率(lv),達(da)到能量(liang)轉換的(de)(de)(de)目的(de)(de)(de)。
發電機不發電是什么原因
發(fa)電機不發(fa)電有這些原(yuan)因:發(fa)電(dian)(dian)(dian)(dian)機(ji)過熱(re);發(fa)電(dian)(dian)(dian)(dian)機(ji)中性線(xian)對(dui)地有(you)異常(chang)電(dian)(dian)(dian)(dian)壓;發(fa)電(dian)(dian)(dian)(dian)機(ji)電(dian)(dian)(dian)(dian)流過大;發(fa)電(dian)(dian)(dian)(dian)機(ji)端電(dian)(dian)(dian)(dian)壓過高(gao);功率不足;定子繞組絕(jue)緣擊穿(chuan)、短路(lu);定子鐵(tie)(tie)芯松馳(chi);鐵(tie)(tie)芯片間(jian)短路(lu);發(fa)電(dian)(dian)(dian)(dian)機(ji)失去剩磁(ci),起(qi)(qi)動時不能(neng)發(fa)電(dian)(dian)(dian)(dian);自動勵(li)(li)磁(ci)裝(zhuang)置(zhi)的勵(li)(li)磁(ci)電(dian)(dian)(dian)(dian)抗器(qi)溫(wen)度過高(gao);發(fa)電(dian)(dian)(dian)(dian)機(ji)起(qi)(qi)動后(hou),電(dian)(dian)(dian)(dian)壓升不起(qi)(qi)來(lai)。
發電機不發電檢查方法
萬用表電(dian)(dian)壓檔檢測;外接(jie)電(dian)(dian)流表檢測;試燈(汽車燈泡(pao))法;改(gai)變發(fa)動機轉(zhuan)速觀察大燈亮(liang)度法;拆(chai)下蓄電(dian)(dian)池搭(da)鐵看發(fa)動機是(shi)否工(gong)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。