专利内容由知识产权出版社提供
专利名称：CONTROL APPARATUS FOR AN INDUCTION
MOTOR
发明人：MITSUI N,JA,WATANABE A,JA,KOMURO
K,JA,HATAKEYAMA T,JA,NUMATAK,JA,FUKUSHIMA I,JA
申请号：US3767987D申请日：19720320公开号：US3767987A公开日：19731023
摘要：A control apparatus for an induction motor comprising a three phase inductionmotor, a three phase alternating current source for supplying a three phase alternatingcurrent voltage for the induction motor, parallel thyristors connected in the reversedirection to each other and inserted in an arbitrary phase of the three phase alternatingcurrent source for controlling the current flowing therethrough, contactors for changingthe main circuit of the induction motor so as to reverse the direction of the phaserotation of the alternating current voltage when the induction motor is in a single phaseoperation by control of the thyristors, and a control device for operating the thyristorsto substantially eliminate the current flowing therethrough in response to a reductioncommand and to increase the current again when the contactors complete changing themain circuit.
申请人：HITACHI LTD,JA
更多信息请下载全文后查看
