變頻電纜BPYJVP

   變頻(pin)電纜(lan)的(de)(de)(de)結構(gou)包括三(san)根主(zhu)線絕緣(yuan)(yuan)(yuan)線、三(san)根零線絕緣(yuan)(yuan)(yuan)線，在主(zhu)線絕緣(yuan)(yuan)(yuan)線和零線絕緣(yuan)(yuan)(yuan)線外(wai)依(yi)次設置內繞(rao)包層、銅帶層、外(wai)繞(rao)包層和外(wai)護套層，形成3+3線芯結構(gou)，使電纜(lan)具有(you)較強(qiang)的(de)(de)(de)耐電壓(ya)(ya)沖擊性，能經受高速頻(pin)繁變頻(pin)時(shi)的(de)(de)(de)脈沖電壓(ya)(ya)，對變頻(pin)電器(qi)起(qi)到良好的(de)(de)(de)保護作用。

變頻電纜BPYJVP

用途

       變(bian)頻電(dian)(dian)纜主要用(yong)于變(bian)頻電(dian)(dian)源(yuan)和變(bian)頻電(dian)(dian)機(ji)之間連接(jie)用(yong)的(de)(de)電(dian)(dian)纜,以及額定電(dian)(dian)壓1KV及以下的(de)(de)輸配電(dian)(dian)線路(lu)(lu)中,作(zuo)輸送電(dian)(dian)能用(yong).尤其(qi)適用(yong)于造紙、冶金、金屬加(jia)(jia)工、礦山、鐵路(lu)(lu)和食品加(jia)(jia)工等行(xing)業(ye)。

使(shi)用條件

       1、 額定電壓U0/U：0.6/1KV.

       2、 電纜導體(ti)長期允許(xu)最(zui)高溫度(du)(du)為90度(du)(du),短(duan)路(lu)時最(zui)高溫度(du)(du)250度(du)(du)

       3、 安裝敷設(she)環(huan)境(jing)溫(wen)度(du)不低于0度(du),固定敷設(she)時環(huan)境(jing)溫(wen)度(du)不低于-10度(du).

       4、 電纜(lan)允許(xu)最小彎(wan)曲半徑不(bu)小于(yu)15D(D-電纜(lan)外(wai)徑,mm)

電纜對稱性設計

對于1.8/3KW及以下變頻電(dian)(dian)(dian)(dian)(dian)(dian)機專(zhuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，和(he)(he)對稱(cheng)3+1芯(xin)(xin)和(he)(he)4芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)僅(jin)可用(yong)于主電(dian)(dian)(dian)(dian)(dian)(dian)源(yuan)的(de)輸入纜(lan)(lan)，但最好使(shi)用(yong)對稱(cheng)結(jie)(jie)(jie)構(gou)(gou)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)。變頻器(qi)與變頻電(dian)(dian)(dian)(dian)(dian)(dian)機問電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)均需采用(yong)對稱(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)結(jie)(jie)(jie)構(gou)(gou)，對稱(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)結(jie)(jie)(jie)構(gou)(gou)有(you)(you)3芯(xin)(xin)和(he)(he)3+3芯(xin)(xin)兩種(zhong)，3+3芯(xin)(xin)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)結(jie)(jie)(jie)構(gou)(gou)是(shi)(shi)將三大一(yi)小四芯(xin)(xin)絕(jue)(jue)緣(yuan)線(xian)(xian)芯(xin)(xin)中第四芯(xin)(xin)（中性線(xian)(xian)芯(xin)(xin)）分(fen)解(jie)為三個截面較小的(de)絕(jue)(jue)緣(yuan)線(xian)(xian)芯(xin)(xin)，把(ba)三大三小線(xian)(xian)芯(xin)(xin)對稱(cheng)成纜(lan)(lan)，對于6/10kV變頻電(dian)(dian)(dian)(dian)(dian)(dian)機專(zhuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)，該電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)結(jie)(jie)(jie)構(gou)(gou)與6/10kV普通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)有(you)(you)所不同，普通(tong)電(dian)(dian)(dian)(dian)(dian)(dian)力電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)(shi)將三根(gen)絕(jue)(jue)緣(yuan)線(xian)(xian)芯(xin)(xin)采用(yong)銅(tong)帶屏蔽后(hou)成纜(lan)(lan)，而變頻電(dian)(dian)(dian)(dian)(dian)(dian)機專(zhuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)是(shi)(shi)由銅(tong)絲銅(tong)帶屏蔽后(hou)擠包分(fen)相護套，然(ran)后(hou)對稱(cheng)成纜(lan)(lan)，對稱(cheng)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)結(jie)(jie)(jie)構(gou)(gou)由于導(dao)線(xian)(xian)的(de)互換性，有(you)(you)更(geng)好的(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)相容性，對抑制電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)干擾(rao)起到(dao)一(yi)定的(de)作用(yong)，能抵消高(gao)次諧彼中的(de)奇次頻率(lv)，提(ti)高(gao)變頻電(dian)(dian)(dian)(dian)(dian)(dian)機專(zhuan)用(yong)電(dian)(dian)(dian)(dian)(dian)(dian)纜(lan)(lan)的(de)抗干擾(rao)性，減少了整個系(xi)統(tong)中的(de)電(dian)(dian)(dian)(dian)(dian)(dian)磁(ci)(ci)輻(fu)射(she)。