《电磁接触器.ppt

电磁式接触器 Speaker：陈圆圆 接触器(Contactor)是指工业电中利用线圈流过电流产生磁场，使触头闭合，以达到控制负载的电器。接触器由电磁系统（铁心，静铁心，电磁线圈）触头系统（常开触头和常闭触头）和灭弧装置组成。 The contactor category and selection criteria * * * * Contactor Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. Contactor using coil in industrial electricity flowing through the current produces a magnetic field, so that the contacts are closed, to control electrical load. Contactor electromagnetic system (core, static core, solenoid coil) contact system (normally open contacts and normally closed contact) and the interrupter device composed. Contactor brief introduction Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. The symbols of the contactor 接触器的符号 (a) Coil (b) The main the touch normally open, normally closed contact (c) Auxiliary the touch normally open, normally closed contact Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. 接触器是一种接通或切断电动机或其他负载主电路的自动切换电器。它是利用电磁力来使开关打开或断开的电器，适用于频繁操作、远距离控制强电电路，并具有低压释放的保护性能。接触器通常分为交流接触器和直流接触器。 交流接触器 直流接触器 The contactor is a turning on or off the motor or other load of the main circuit automatically switches electrical. It is the use of electromagnetic force to make the switch to turn on or disconnect electrical appliances, for frequent operation, remote control of a strong electric circuit, and has the performance of low-voltage release protection. The contactor is usually divided into the AC contactor and DC contactors. AC contactor DC contactor Evaluation only. Created with Aspose.Slides for .NET 3.5 Client Profile 5.2.0.0. Copyright 2004-2011 Aspose Pty Ltd. CJ20系列交流接触器：用于交流50Hz，额定电压至660V(个别等级至1140V)，电流至630A的电力线路中供远距离频繁接通和分断电路以及控制交流电动机，并适宜于与热继电器或电子保护装置组成电磁起动器，以保护电路或交流电动机可能发生的过负荷及断相。 CJ20 Series AC contactor: for AC 50Hz, rated voltage up to 660V (individual grade to 1140V), current to 630A of power lines fo