初级电流 meaning in Chinese
primary current
Examples
- When the secondary circuit is open, the core flux is produced by the primary current only .
当次级电路开路时，铁芯磁通量仅仅由初级电流产生。 - When the secondary circuit is closed, both primary and secondary currents set up a flux in the core .
当次级电路接通时，初级电流和次级电流都在铁芯内建立了一个磁通量。 - On elementary current numerical value of automobile electronic ignition system
汽车电子点火系统初级电流值的探讨 - The primary of linear induction motor which drives the metro is installed on the chassis bogie , and because it is quite strict with laying down railway rail to use flat linear induction motor to drive metro , its secondary - - - - reaction board ( called induction board ) , which is a kind of compound board of aluminum and steel , is fixed on the rail sleeper between the track . it is the airgap which is a gap between the primary and secondary of lim . the electromagnetic airgap is a very important parameter of lim
利用有限元法对直线感应电动机二维非线性涡流场进行了数值计算,并在此基础上,运用电磁场有限元分析的专用软件ansoftmaxwell2d对单边型直线感应电动机的瞬态特性进行了仿真分析,得到电机运行过程中的电磁推力、法向力、初级电流、气隙磁密等曲线,通过改变直线电机参数,分析了电机气隙对其瞬态性能的影响。 - And this driving type results in the disadvantages of metro project such as the high cost of construction and maintenance , the big noise of vibration . the linear metro , which is droved by linear induction motor ( lim ) , needn ’ t intermediate gearing and is droved to advance directly by the electromagnetic thrust between primary and secondary of lim . its force of traction is no longer restricted with the track adherence and the wheel only plays the support and guidance role
电磁气隙是直线感应电动机的一个重要参数,气隙的变化会直接影响到电磁推力、初级电流等电机特性,而推力和电流对地铁的稳定运行起着至关重要的作用,所以对地铁中直线感应电动机的性能及气隙变化对电机性能的影响进行分析研究具有非常重要的意义。