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          • Term
            • inrush current
          • Additional fields of expertise
          • Definition(s)
            • Inrush current is the initial surge of current that results when power is first applied to a load having a low starting impedance, such as a discharged capacitor, a cold lamp filament, or a stopped motor's winding. RTI Electronics, Inc.
          • Example sentence(s)
            • An NTC thermistor is always connected in series with the load to be protected. If the inrush current cannot be handled by one thermistor alone, two or more thermistor elements can be connected in series. - EPCOS AG by
            • Typical power converters made by other manufactures require the user to add external inrush current limiting components such as an NTC thermistor. In contrast, all BEAR converters have active inrush current limiting circuitry built into the module. - Bear Power Supplies by
            • The trips are caused by the initial start up current - or inrush current - which can be several times greater than their operating or steady-state current. In a three-phase motor, for example, inrush current generally lasts between 75-150 milliseconds with a current spike between 500% and 1200%. - Fluke Corporation by
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    • Chinese
      • Electronics / Elect Eng
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          • Term
            • 冲击电流(冲流,合闸电流,浪涌电流，侵入电流)
          • Additional fields of expertise
          • Definition(s)
            • 冲击电流 　　冲击电流一般是指用电器给电一瞬间在其内部产生的大电流。 　　这个主要体现在感性和容性负载中。 　　感性负载代表是电机。 　　电机启动的一瞬间，相当于短路，电流是相当大的，因为电机本身绕组的电阻和电感都很小。在电机关断的时候也会产生一个反向的冲击电流。 　　容性负载比如电容，上电一瞬间，也是相当于短路，电流瞬间理论上是无穷大的。 　　还有荧光灯启动的瞬间需要瞬间的高压、大电流用来电离灯管内部的汞蒸气。 http://baike.baidu.com - by Adsion Liu
          • Example sentence(s)
            • 2009年5月16日 ... 由于电容器在瞬态时可以看成是短路的，当开关电源上电时，会产生非常大的冲击电流，冲击电流的幅度要比稳态工作电流大很多，如对冲击电流不加以限制， ... - http://tech.ddvip.com by Adsion Liu
            • 结构和原理 最常采用的是以电容器为储能元件的冲击电流发生器。 ... 现代的冲击电流发生器产生的冲击电流幅值达几兆安，甚至上亿安。 在冲击电流发生器中，除采用电容 ... - http://www.hudong.com/wiki/ by Adsion Liu
            • 2009年7月14日 ... 【简介】变压器合闸电流大是由于合闸瞬间刚刚好遇到交流电压的峰值造成的冲击电流，这是随机的。如果刚刚好在电压过零点时合闸电流会最小。 - http://www.chinamachinist.net/dictionary by Adsion Liu
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