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)
:六安2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器哪里好
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
:六安2098-DSD-020-DN羅克韋爾伺服驅(qū)動(dòng)器哪里好三相電動(dòng)機(jī)是應(yīng)用很廣泛的電氣旋轉(zhuǎn)類工具,在電工維護(hù)保養(yǎng)過(guò)程中,我們經(jīng)常會(huì)需要判斷三相電動(dòng)機(jī)三相繞組的首尾端,需要確保首尾端接線正確,因?yàn)槿嗬@組的首尾端接錯(cuò)后,會(huì)使繞組中電流方向反向,造成磁動(dòng)勢(shì)不平衡,三相電流嚴(yán)重不平衡,引起電動(dòng)機(jī)振動(dòng)和噪聲,轉(zhuǎn)速緩慢甚至不轉(zhuǎn)。如不及時(shí)切斷電源,還將造成繞組溫度急劇上升而燒毀電動(dòng)機(jī)。三相繞組首尾端的判別方法有以下幾種。繞組串聯(lián)法(又稱燈泡法)。先用萬(wàn)用表將繞組的6根引線分成3個(gè)獨(dú)立繞組,然后按-7所示的接法通以低壓交流電源(所加電壓應(yīng)使繞組中的電流不超過(guò)額定值)。