襄陽軟啟動柜廠家,襄陽軟啟動柜生產廠家說起電動機，它的啟動方式有很多種。高效的就是直接啟動，但直接啟動會對整個供電網帶來沖擊(電源功率滿足的情況下除外)。為了降低對電網的沖擊，目前采用多的有星三角、軟啟動、變頻器等方式，早期的串電阻、自耦降壓使用的已經很少了。但是現在比較常用的是軟啟動方式。今天，軟啟動柜廠家就給大家介紹下軟啟動的內接與外接方法。

“外(wai)接”是(shi)將(jiang)(jiang)軟起(qi)動(dong)器的功率(lv)元件接在三(san)角形(xing)(xing)接法電(dian)zd動(dong)機的外(wai)部(bu)，控制(zhi)電(dian)機回的線電(dian)流(liu)(liu)。“內接”是(shi)將(jiang)(jiang)軟起(qi)動(dong)的功率(lv)元件接到三(san)角形(xing)(xing)接法電(dian)動(dong)機的內部(bu)，控制(zhi)的是(shi)三(san)角形(xing)(xing)接法電(dian)機的相(xiang)電(dian)流(liu)(liu)。答由于(yu)線電(dian)流(liu)(liu)是(shi)相(xiang)流(liu)(liu)的1.73倍(bei)，所以(yi)同樣的軟起(qi)動(dong)器在“內接”時(shi)可提高控制(zhi)電(dian)流(liu)(liu)(功率(lv))的1.73倍(bei)。

判斷軟(ruan)(ruan)啟(qi)動(dong)(dong)(dong)內(nei)(nei)接(jie)(jie)還是(shi)(shi)(shi)外(wai)(wai)接(jie)(jie)，直接(jie)(jie)的(de)方式是(shi)(shi)(shi)觀(guan)(guan)察被(bei)控制的(de)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機有(you)幾根接(jie)(jie)線，3根就是(shi)(shi)(shi)外(wai)(wai)接(jie)(jie);6根就是(shi)(shi)(shi)內(nei)(nei)接(jie)(jie)。不可(ke)觀(guan)(guan)察軟(ruan)(ruan)起動(dong)(dong)(dong)的(de)接(jie)(jie)線，因軟(ruan)(ruan)啟(qi)動(dong)(dong)(dong)配(pei)有(you)外(wai)(wai)置旁路接(jie)(jie)觸器(qi)的(de)話很容易(yi)看錯。使用內(nei)(nei)接(jie)(jie)還是(shi)(shi)(shi)外(wai)(wai)接(jie)(jie)要根據(ju)現(xian)場情(qing)況而定，還要考慮成本因素，畢竟電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機是(shi)(shi)(shi)六根電(dian)(dian)(dian)(dian)纜接(jie)(jie)到(dao)軟(ruan)(ruan)啟(qi)動(dong)(dong)(dong)器(qi)。一般來說，如果軟(ruan)(ruan)啟(qi)動(dong)(dong)(dong)控制柜(ju)在(zai)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機旁邊(bian)可(ke)以(yi)考慮內(nei)(nei)接(jie)(jie)，但實際應用中，幾乎不可(ke)能出現(xian)軟(ruan)(ruan)啟(qi)動(dong)(dong)(dong)柜(ju)和(he)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機共處一室，一是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機震動(dong)(dong)(dong)太(tai)大，二是(shi)(shi)(shi)電(dian)(dian)(dian)(dian)動(dong)(dong)(dong)機工作環境惡劣，三是(shi)(shi)(shi)不利于配(pei)電(dian)(dian)(dian)(dian)柜(ju)的(de)集中管理，四是(shi)(shi)(shi)接(jie)(jie)線太(tai)麻煩。