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相(xiang)(xiang)(xiang)繞組只有(you)勵(li)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)If感(gan)生出(chu)的(de)(de)(de)(de)空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢(shi)E0（三相(xiang)(xiang)(xiang)對稱(cheng)），其(qi)大小隨If的(de)(de)(de)(de)增大而增加(jia)。但(dan)是(shi)，由(you)于電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)磁(ci)(ci)(ci)(ci)路鐵心有(you)飽(bao)和現象，所以兩(liang)者(zhe)不成正(zheng)比(bi)。反(fan)映空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢(shi)E0與勵(li)磁(ci)(ci)(ci)(ci)電(dian)(dian)(dian)(dian)(dian)流(liu)If關系(xi)的(de)(de)(de)(de)曲線(xian)稱(cheng)為(wei)同步發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)空(kong)載(zai)特性(xing)(xing)。 3、電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)： 當(dang)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)接上對稱(cheng)負(fu)載(zai)后，電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)繞組中的(de)(de)(de)(de)三相(xiang)(xiang)(xiang)電(dian)(dian)(dian)(dian)(dian)流(liu)會產生另(ling)一個旋轉(zhuan)磁(ci)(ci)(ci)(ci)場(chang)，稱(cheng)電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)磁(ci)(ci)(ci)(ci)場(chang)。其(qi)轉(zhuan)速正(zheng)好(hao)與轉(zhuan)子(zi)的(de)(de)(de)(de)轉(zhuan)速相(xiang)(xiang)(xiang)等，兩(liang)者(zhe)同步旋轉(zhuan)。 同步發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)磁(ci)(ci)(ci)(ci)場(chang)與轉(zhuan)子(zi)勵(li)磁(ci)(ci)(ci)(ci)磁(ci)(ci)(ci)(ci)場(chang)均可近似地認為(wei)都(dou)按正(zheng)弦(xian)規律(lv)分布。它(ta)們之間(jian)的(de)(de)(de)(de)空(kong)間(jian)相(xiang)(xiang)(xiang)位(wei)差(cha)取決于空(kong)載(zai)電(dian)(dian)(dian)(dian)(dian)動(dong)(dong)(dong)勢(shi)E0與電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)電(dian)(dian)(dian)(dian)(dian)流(liu)I之間(jian)的(de)(de)(de)(de)時間(jian)相(xiang)(xiang)(xiang)位(wei)差(cha)。電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)磁(ci)(ci)(ci)(ci)場(chang)還與負(fu)載(zai)情況有(you)關。 當(dang)發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)負(fu)載(zai)為(wei)電(dian)(dian)(dian)(dian)(dian)感(gan)性(xing)(xing)時，電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)磁(ci)(ci)(ci)(ci)場(chang)起(qi)去磁(ci)(ci)(ci)(ci)作用(yong)，會導致發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)電(dian)(dian)(dian)(dian)(dian)壓(ya)降(jiang)低(di)；當(dang)負(fu)載(zai)呈(cheng)電(dian)(dian)(dian)(dian)(dian)容性(xing)(xing)時，電(dian)(dian)(dian)(dian)(dian)樞(shu)(shu)(shu)(shu)反(fan)應(ying)(ying)磁(ci)(ci)(ci)(ci)場(chang)起(qi)助磁(ci)(ci)(ci)(ci)作用(yong)，會使發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)的(de)(de)(de)(de)輸(shu)出(chu)電(dian)(dian)(dian)(dian)(dian)壓(ya)升高。發(fa)(fa)電(dian)(dian)(dian)(dian)(dian)機(ji)(ji)(ji)(ji)開機(ji)(ji)(ji)(ji)運行查(cha)驗(yan)相(xiang)(xiang)(xiang)關流(liu)程 1、查(cha)驗(yan)發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)水箱水位(wei)線(xian)是(shi)不是(shi)正(zheng)常值； 2、查(cha)驗(yan)發(fa)(fa)動(dong)(dong)(dong)機(ji)(ji)(ji)(ji)機(ji)(ji)(ji)(ji)油是(shi)不是(shi)在要(yao)求的(de)(de)(de)(de)油面位(wei)置； 3、查(cha)驗(yan)柴油箱是(shi)不是(shi)有(you)充裕柴油，供油閥門