公司名称：广州山思自动化设备有限公司 联 系 人：廖学通 联系地址：广州市天河区燕岭路123号建设大厦1200室 使用断路器来保护电动机，必须注意电动机（主交流感应电动机）两个特点：其一是具有一定过载能力；其二是起动电流通常是额定电流几倍（可逆运行或反接制动时可达十几倍）。电动机运行和顺利起动，选择断路器时应遵循以下原则： （1）按电动机额定电流来确定断路器长延时动作电流整定值。 （2）断路器6倍长延时动作电流整定值可返回时间要长于电动机实际起动时间。 （3）断路器瞬时动作电流整定值：笼型电动机应为8～15倍脱扣器额定电流；绕线型电动机应为3～6倍脱扣器额定电流。 当然，需要频繁起动电动机，断相运行机率不高有断相保护装置，采用熔断器与磁力起动器结合方式来控制和保护，也是比较合适，这种保护方式便于远距离控制。3VU91320AB24 3VU13401ML00ZK01 3VU16400ML00 3VU91320AB25 3VU13401MM00 3VU16400MM00 3VU91320AB26 3VU13401MN00 3VU16400MN00 3VU91320AB35 3VU13401MP00 3VU16400MP00 3VU91320AB37 3VU13401MS00 3VU16400MQ00 3VU91320AB38 3VU13401NH00 3VU16400MR00 3VU91320AB43 3VU13401NJ00 3VU16401CG00 3VU91320AB44 3VU13401NK00 3VU16401CH00 3VU91320AB45 3VU13401NL00 3VU16401CJ00 3VU91320AB46 3VU13401TB00 3VU16401CK00 3VU91320AB50 3VU13401TC00 3VU16401CL00 3VU91320AB55 3VU13401TD00 3VU16401CM00 3VU91320AB57 3VU13401TE00 3VU16401CN00 3VU91320AB58 3VU13401TF00 3VU16401CP00 3VU91320AB59 3VU13401TG00 3VU16401CQ00 3VU91320AB63 3VU13401TH00 3VU16401CR00 3VU91320AB64 3VU13401TJ00 3VU16401LS00 3VU91320AB65 3VU13401TK00 3VU16401MG00 3VU91320AB66 3VU13401TL00 3VU16401MH00 3VU91320AB73 3VU13401TM00 3VU16401MJ00 3VU91331PA01 3VU13401TN00 3VU16401MK00 3VU91331PA02 3VU13402MB00 3VU16401ML00 3VU91332EA00 3VU13402MC00 3VU16401MM00 3VU91332GA00 3VU13402MD00 3VU16401MN00 3VU91351AB02 3VU13402ME00 3VU16401MP00 3VU91351AB03 3VU13402MF00 3VU16401MQ00 3VU91351AB04 3VU13402MG00 3VU16401MR00 3VU91351AB05 3VU13402MH00 3VU16402CG00 3VU91351BB00 3VU13402MJ00 3VU16402CH00 3VU91351BB01 3VU13402MK00 3VU16402CJ00 3VU91351BB03 3VU13402ML00 3VU16402CK00 3VU91351GB00 3VU13402MM00 3VU16402CL00 3VU91351KA02 3VU13402MN00 3VU16402CM00 3VU91351KA04 3VU13402MP00 3VU16402CN00 3VU91382AB00 3VU13402MS00 3VU16402CP00 3VU91631PA01 3VU13402NH00 3VU16402CQ00 3VU91631PA02 3VU13402NJ00 3VU16402CR00 3VU91651AB02 3VU13402NK00 3VU16402LS00 3VU91651AB03 3VU13402NL00 3VU16402MG00 3VU91651BB01 3VU13403MB00 3VU16402MH00 3VU91651GB00 3VU13403MC00 3VU16402MJ00 3VU91680KA00 3VU13403MD00 3VU16402MK00 3VU16402MN00 3VU13403ME00 3VU16402ML00 3VU16402MP00 3VU13403MF00 3VU16402MM00 3VU16402MQ00