DBF-5H6變壓器底吹冷卻風機在吸(xi)取國內外同類產品(pin)優點(dian)的基礎上設(she)(she)計(ji)制造，采用(yong)高(gao)效率，低(di)噪(zao)聲(sheng)(sheng)葉型，該葉輪(lun)采用(yong)優質防銹鋁板材(cai)或(huo)復合材(cai)料翼形葉片制造，配套電機為(wei)低(di)噪(zao)聲(sheng)(sheng)電動機。電機軸(zhou)承為(wei)雙密封(feng)電機軸(zhou)承。軸(zhou)端設(she)(she)計(ji)為(wei)雙套軸(zhou)承結構，加裝防水(shui)密封(feng)，具有良好的防護(hu)性(xing)能(neng)，其防護(hu)等級達IP55，適(shi)用(yong)于戶外使用(yong)。因此(ci)，該產品(pin)具有噪(zao)聲(sheng)(sheng)低(di)、效率高(gao)、性(xing)能(neng)穩定、運(yun)行可靠、使用(yong)壽命長(chang)等特點(dian)。

電(dian)機溫升(sheng)：電(dian)機采用(yong)B級絕(jue)緣(yuan)，定子繞組的(de)溫升(sheng)限(xian)值（電(dian)阻(zu)法）≤45K，軸承允許溫度（溫度計(ji)法）≤95℃；軸承使(shi)用(yong)壽命在正常的(de)使(shi)用(yong)條(tiao)件(jian)下，能(neng)承受額(e)定負載連續運行，其使(shi)用(yong)壽命為10年(nian)(nian)，并能(neng)保證在*次大修前安全運行時間不少于5年(nian)(nian)。

DBF-5H6變壓器底吹冷卻風機是按中(zhong)(zhong)華人(ren)民(min)共和(he)國(guo)(guo)行業標(biao)(biao)準JB/T9545-2002《變(bian)(bian)壓(ya)(ya)器(qi)(qi)冷(leng)卻風(feng)扇(shan)用(yong)(yong)(yong)三相異步(bu)電(dian)動(dong)(dong)機技術條件》和(he)JB/T9642-1999《變(bian)(bian)壓(ya)(ya)器(qi)(qi)風(feng)扇(shan)》等(deng)(deng)標(biao)(biao)準設(she)計制造(zao)，主要(yao)用(yong)(yong)(yong)于(yu)大中(zhong)(zhong)型變(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)散熱冷(leng)卻系(xi)(xi)統，也可用(yong)(yong)(yong)于(yu)其(qi)它場所作(zuo)(zuo)吹排風(feng)使用(yong)(yong)(yong)，其(qi)噪(zao)聲(sheng)(sheng)比傳統產(chan)品(pin)(pin)平均降低(di)3-10db(A)。DBF-5Q8、DBF-5Q6分(fen)為(wei)4葉片和(he)3葉片兩(liang)種訂貨(huo)時(shi)說明，技術參數如下(xia)：葉輪直徑：500mm.同(tong)步(bu)轉(zhuan)速(su)：1000r/min,風(feng)量(liang)：6500m3/h,全壓(ya)(ya)：120/140Pa,電(dian)流：1.33A,電(dian)壓(ya)(ya):380V.頻率：50Hz,功率：0.37Kw,噪(zao)聲(sheng)(sheng)：64/67Db,重量(liang)：18kg.DBF系(xi)(xi)列變(bian)(bian)壓(ya)(ya)器(qi)(qi)風(feng)扇(shan)適用(yong)(yong)(yong)于(yu)大型電(dian)子變(bian)(bian)壓(ya)(ya)器(qi)(qi)、電(dian)爐變(bian)(bian)壓(ya)(ya)器(qi)(qi)的(de)冷(leng)卻系(xi)(xi)統。它是依據(ju)中(zhong)(zhong)華人(ren)民(min)共和(he)國(guo)(guo)機械行業標(biao)(biao)準JB/T9642-1999＜＜變(bian)(bian)壓(ya)(ya)器(qi)(qi)風(feng)扇(shan)＞＞等(deng)(deng)標(biao)(biao)準設(she)計制造(zao)的(de)，該產(chan)品(pin)(pin)吸取了國(guo)(guo)內外同(tong)類產(chan)品(pin)(pin)的(de)優點(dian)，具(ju)有優良(liang)的(de)空氣動(dong)(dong)力(li)性能(neng)和(he)噪(zao)聲(sheng)(sheng)低(di)、效率高、性能(neng)穩定(ding)、運行可靠、壽命長、防(fang)護(hu)分(fen)級高、安全可靠等(deng)(deng)特點(dian)，是目(mu)前國(guo)(guo)內較為(wei)*低(di)噪(zao)聲(sheng)(sheng)變(bian)(bian)壓(ya)(ya)器(qi)(qi)用(yong)(yong)(yong)風(feng)扇(shan)。該系(xi)(xi)列產(chan)品(pin)(pin)已被沈變(bian)(bian)、保變(bian)(bian)、西(xi)變(bian)(bian)、等(deng)(deng)近(jin)20家大中(zhong)(zhong)型變(bian)(bian)壓(ya)(ya)器(qi)(qi)廠配套使用(yong)(yong)(yong)。DBF系(xi)(xi)列變(bian)(bian)壓(ya)(ya)器(qi)(qi)風(feng)扇(shan)采(cai)(cai)用(yong)(yong)(yong)低(di)噪(zao)聲(sheng)(sheng)葉型，柳接葉型，鉚接葉輪，電(dian)機為(wei)為(wei)低(di)噪(zao)聲(sheng)(sheng)用(yong)(yong)(yong)電(dian)機，采(cai)(cai)用(yong)(yong)(yong)進(jin)口低(di)噪(zao)聲(sheng)(sheng)軸(zhou)承，電(dian)動(dong)(dong)機軸(zhou)伸端采(cai)(cai)用(yong)(yong)(yong)雙套軸(zhou)承結構，具(ju)有良(liang)好的(de)防(fang)護(hu)作(zuo)(zuo)用(yong)(yong)(yong)，電(dian)動(dong)(dong)機外殼防(fang)護(hu)分(fen)級為(wei)IP55，適用(yong)(yong)(yong)于(yu)戶外使用(yong)(yong)(yong)。