為保障電(dian)(dian)力設(she)(she)(she)備能(neng)安全運(yun)(yun)(yun)行(xing),所(suo)以要定(ding)(ding)期對已投入運(yun)(yun)(yun)行(xing)的設(she)(she)(she)備按規定(ding)(ding)的試(shi)驗(yan)(yan)(yan)條(tiao)件(如規定(ding)(ding)的試(shi)驗(yan)(yan)(yan)設(she)(she)(she)備、環境(jing)條(tiao)件、試(shi)驗(yan)(yan)(yan)方法(fa)和試(shi)驗(yan)(yan)(yan)電(dian)(dian)壓等)試(shi)驗(yan)(yan)(yan)項目、試(shi)驗(yan)(yan)(yan)周期所(suo)進(jin)行(xing)的定(ding)(ding)期檢查或試(shi)驗(yan)(yan)(yan),以發現運(yun)(yun)(yun)行(xing)中電(dian)(dian)力設(she)(she)(she)備的隱患(huan)、預(yu)防發生事故或電(dian)(dian)力設(she)(she)(she)備損壞。它是判(pan)斷電(dian)(dian)力設(she)(she)(she)備能(neng)否繼續(xu)投入運(yun)(yun)(yun)行(xing)并保證安全運(yun)(yun)(yun)行(xing)的重要措施。電(dian)(dian)...
2019-05-30電(dian)(dian)(dian)線(xian)(xian)(xian)電(dian)(dian)(dian)纜在(zai)我國(guo)的(de)基礎(chu)建設當中(zhong)起到了很重要的(de)鏈接作(zuo)用(yong),電(dian)(dian)(dian)力電(dian)(dian)(dian)纜常(chang)(chang)用(yong)于城(cheng)市地下(xia)電(dian)(dian)(dian)網、發(fa)電(dian)(dian)(dian)站(zhan)引出線(xian)(xian)(xian)路、工礦企業內部供(gong)電(dian)(dian)(dian)及過江海水下(xia)輸(shu)(shu)電(dian)(dian)(dian)線(xian)(xian)(xian),由線(xian)(xian)(xian)芯、絕緣層(ceng)、屏蔽(bi)層(ceng)和保護(hu)層(ceng)四(si)部分(fen)組合(he)而成,是輸(shu)(shu)送電(dian)(dian)(dian)力能源必不(bu)可(ke)少的(de)材(cai)料之一,在(zai)經(jing)濟生產中(zhong)的(de)應(ying)用(yong)非常(chang)(chang)廣泛,一旦電(dian)(dian)(dian)纜發(fa)生故(gu)障(zhang),不(bu)僅會威脅(xie)電(dian)(dian)(dian)網的(de)安(an)全穩...
2019-05-29發(fa)(fa)電(dian)(dian)機(ji)過熱(re)1:發(fa)(fa)電(dian)(dian)機(ji)沒有按規定的(de)技術條件運行(xing)(xing),如定子電(dian)(dian)壓(ya)過高(gao),鐵損增(zeng)大(da)(da)(da);負(fu)荷電(dian)(dian)流過大(da)(da)(da),定子繞組銅損增(zeng)大(da)(da)(da);頻(pin)率過低(di),使冷卻(que)風(feng)扇轉(zhuan)速變慢(man),影響發(fa)(fa)電(dian)(dian)機(ji)散熱(re);功率因數太(tai)低(di),使轉(zhuan)子勵磁電(dian)(dian)流增(zeng)大(da)(da)(da),造(zao)成轉(zhuan)子發(fa)(fa)熱(re)。應(ying)檢查(cha)監(jian)視儀表(biao)的(de)指示(shi)是否正常。如不正常,要(yao)進行(xing)(xing)必要(yao)的(de)調節和處理,使發(fa)(fa)電(dian)(dian)機(ji)按照(zhao)規定的(de)...
2019-05-29