新聞動態
普通變(bian)頻器能和防爆(bao)電機(ji)配套使用么？
發布時間：2017.01.14
隨(sui)著電(dian)(dian)(dian)子技術(shu)的飛越發展,使得變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)的技術(shu)日趨(qu)成熟,體積變(bian)(bian)(bian)(bian)(bian)(bian)(bian)小,功(gong)(gong)率范圍(wei)擴大(da),功(gong)(gong)能(neng)增多,價格(ge)也(ye)趨(qu)于合理。這為變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)調速三(san)相異步電(dian)(dian)(dian)動機(ji)大(da)量應用(yong)(yong)(yong)提供了必要的物質基礎。用(yong)(yong)(yong)于防爆電(dian)(dian)(dian)機(ji)控制的變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)，既可以改變(bian)(bian)(bian)(bian)(bian)(bian)(bian)電(dian)(dian)(dian)壓，又(you)可以改變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)率。目前(qian)國內部分電(dian)(dian)(dian)機(ji)廠(chang)家還只是(shi)生產(chan)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)調速用(yong)(yong)(yong)三(san)相異步電(dian)(dian)(dian)動機(ji),并沒有把變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)和電(dian)(dian)(dian)機(ji)設計生產(chan)成一(yi)體。那么，普通(tong)變(bian)(bian)(bian)(bian)(bian)(bian)(bian)頻(pin)(pin)(pin)(pin)器(qi)能(neng)和防爆電(dian)(dian)(dian)機(ji)配套使用(yong)(yong)(yong)么？
變(bian)(bian)頻(pin)(pin)器(qi)的(de)分(fen)(fen)類方(fang)法有多種，按(an)照主電(dian)路工作方(fang)式(shi)(shi)分(fen)(fen)類，可(ke)以分(fen)(fen)為(wei)(wei)電(dian)壓型變(bian)(bian)頻(pin)(pin)器(qi)和電(dian)流型變(bian)(bian)頻(pin)(pin)器(qi)；按(an)照開關(guan)方(fang)式(shi)(shi)分(fen)(fen)類，可(ke)以分(fen)(fen)為(wei)(wei)PAM控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)、PWM控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)和高(gao)載頻(pin)(pin)PWM控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)；按(an)照工作原理分(fen)(fen)類，可(ke)以分(fen)(fen)為(wei)(wei)V/f控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)、轉差頻(pin)(pin)率控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)和矢量控(kong)(kong)制(zhi)變(bian)(bian)頻(pin)(pin)器(qi)等；按(an)照用(yong)途分(fen)(fen)類，可(ke)以分(fen)(fen)為(wei)(wei)通用(yong)變(bian)(bian)頻(pin)(pin)器(qi)、高(gao)性能專用(yong)變(bian)(bian)頻(pin)(pin)器(qi)、高(gao)頻(pin)(pin)變(bian)(bian)頻(pin)(pin)器(qi)、單(dan)相(xiang)(xiang)變(bian)(bian)頻(pin)(pin)器(qi)和三(san)相(xiang)(xiang)變(bian)(bian)頻(pin)(pin)器(qi)等。
煤礦(kuang)用防爆(bao)電機就(jiu)比(bi)較特殊，對于防爆(bao)電機安(an)裝普通的(de)變頻器就(jiu)有比(bi)較具體的(de)標(biao)準。
在連(lian)接變頻器的(de)時候要注(zhu)意：
1）安裝防(fang)(fang)爆(bao)電機的環境有(you)(you)沒(mei)有(you)(you)防(fang)(fang)爆(bao)要(yao)(yao)求，如(ru)果有(you)(you)防(fang)(fang)爆(bao)要(yao)(yao)絕對不能直接接的，要(yao)(yao)把變頻器(qi)引到非防(fang)(fang)爆(bao)要(yao)(yao)求的地方去。
2）根(gen)據(ju)防(fang)爆(bao)電(dian)機的使(shi)用(yong)(yong)環境(jing)分析，要(yao)求(qiu)或是必須采取防(fang)爆(bao)措(cuo)施的情況下，比如如果有爆(bao)炸性環境(jing)要(yao)求(qiu)，就(jiu)一定要(yao)使(shi)用(yong)(yong)防(fang)爆(bao)的變(bian)頻器及配(pei)電(dian)控(kong)制(zhi)設備(bei)。
變(bian)頻器(qi)與(yu)電機一體化不但(dan)節(jie)省了空間,還有(you)效(xiao)消除(chu)了浪涌電壓,從(cong)而(er)減(jian)小了各種(zhong)附加損耗,同時(shi)還能降(jiang)低電壓源對(dui)(dui)電機絕緣的影響,減(jian)小電機潛在的制造(zao)成本(ben)及維(wei)護費用(yong)(yong),在防爆(bao)(bao)電機操作上(shang)也更(geng)加方(fang)便(bian)。不管是防爆(bao)(bao)電機，還是異步電機，對(dui)(dui)于電機來說都需要(yao)一個防爆(bao)(bao)電機加以配套使用(yong)(yong)，然而(er)對(dui)(dui)于防爆(bao)(bao)電機可以不可以與(yu)普通的變(bian)頻器(qi)配套使用(yong)(yong)，目前(qian)在我國還沒有(you)明確的指標。