一台三相感应电动机拖动额定恒转负载运行时,若电源电压下降10%,此时电机的电磁转矩( )。
发布时间:2026-01-23
A.T=TN
B.T=0.97TN
C.T=0.81TN
D.T=1.1TN
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SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69469' and id < 4498977 and id<>'4498977' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69469' and id > 4498977 and id<>'4498977' order by id asc limit 5
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