本公司供應(yīng)全新羅克韋爾1398-DDM-150伺服驅(qū)動(dòng)器ALLEN BRADLEY，價(jià)格優(yōu)惠，快速交貨，
型號(hào)
:咸寧2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器哪里有賣(mài)
Allen Bradley 1398-DDM-009-DN
Allen Bradley 1398-DDM-005X-NV
Allen Bradley 1398-DDM-005X-DN
Allen Bradley 1398-DDM-009X
Allen Bradley 1398-DDM-019-DN
Allen Bradley 1398-DDM-009X-DN
Allen Bradley 1398-DDM-005X
Allen Bradley 1398-DDM-005-DN
Allen Bradley 1398-DDM-005
Allen Bradley 1398-DDM-075X
Allen Bradley 1398-DDM-075
Allen Bradley 1398-DDM-010X
Allen Bradley 1398-DDM-010
Allen Bradley 1398-DDM-150
Allen Bradley 1398-DDM-020X
Allen Bradley 1398-DDM-020
Allen Bradley 1398-DDM-030X
Allen Bradley 1398-DDM-030
Allen Bradley 1398-DDM-019X-DN
Allen Bradley 1398-DDM-019X
Allen Bradley 1398-DDM-150X
Allen Bradley 1398-DDM-019
Allen Bradley 1398-DDM-009
:咸寧2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器哪里有賣(mài)定子繞組三角形運(yùn)行的電動(dòng)機(jī)，其每相繞組承受的相電壓即電動(dòng)機(jī)的額定電壓(電源伐電壓)，若錯(cuò)接成星形，每相繞組上電壓下降至原電壓的1/3，電源電壓為380伏，則相電壓下降至0.58*380=220伏，導(dǎo)致電動(dòng)機(jī)的轉(zhuǎn)矩將減小到額定轉(zhuǎn)矩的(1/3)=1/3，此時(shí)如果電動(dòng)機(jī)仍帶上額定負(fù)載運(yùn)行為了克服負(fù)載的阻力矩，星形接法的轉(zhuǎn)矩與三角形接法的轉(zhuǎn)矩一樣，這樣勢(shì)必造成電機(jī)定子電流增加，從而導(dǎo)致電機(jī)過(guò)載發(fā)熱長(zhǎng)時(shí)間運(yùn)行同樣會(huì)燒毀，功率因數(shù)和效率也會(huì)下降。
