当我们打开装置的开关后，这些碳纳米管就带有约为300微瓦能量的电流。
When the device is switched on the nanotubes carry an electric current with a power of about 300 microwatts.
具体地说，如果装置为低阻抗，那么通过开关的电流就会引起很明显的压降。
In particular, if the devices have low resistance, the current flowing through the switches may cause a significant voltage drop.
每一套装置应包括一个主开关和电流表，电流表的刻度范围约20安培。
Each unit should include a main switch and ammeter with a scale of about 20 ampere capacity.
如果使用高压，则需要利用限流电阻，以免被测装置击穿后损坏电流开关。
If high voltage is used, current limiting resistors are needed to avoid damage to the current switches in case the device under test breaks down.
该电阻器的阻值要保证被测装置发生故障时的短路电流不会超过开关卡上任一组继电器的最大电流指标。
The value of this resistor is chosen such that, in the event of device failure, the short circuit current will not exceed the maximum current specification of the relays on either set of switch cards.
本发明涉及一种单电流传感器的四相（8/6极）开关磁阻电机控制装置及其实现方法。
The invention relates to a four-phase (8/6 pole) switch magnetic resistance motor control device of a single current sensor and a realized method thereof.
另外，可用开关装置实现偏置电流的脉冲，进而调制发射强度。然后，经过调制的组分被FFT分析器有选择性地检测。
Furthermore, the bias current can be pulsated with a switching device to modulate the emission intensities, and then the modulated component is selectively detected with the FFT analyser.
本发明涉及一种具有超导开关元件的电流限流装置。
The invention relates to an electrical current limiting device having a superconductive switching element.
通常由一个电阻器或者电流源，电容器和一个“阀门”装置，如氖灯、两端交流开关、单结晶体管或者耿式效应二极管来实现。
It is usually implemented with a resistor or current source, a capacitor, and a "threshold" device such as a neon lamp, diac unijunction transistor, or Gunn diode.
启用软启动保护装置，避免瞬间电流对LED的冲击，有效保护LED，使用寿命达50000小时，且不计开关次数。
With protection of soft starting, which can avoid transient currents impact, and effectively protect LED. Using life over 50000 hours.
利用大容量高速开关装置，在正常运行时将串联电抗器短接，消除电抗器漏磁通对其周围的金属产生的涡流发热；在发生短路情况下该装置快速断开，重新将电抗器投入，限制短路电流。
By high capacity high-speed switch, the series reactor is shorted during normal operation, eliminating the reactor leakage magnetic flux to eddy hot produced metal member around it.
利用大容量高速开关装置，在正常运行时将串联电抗器短接，消除电抗器漏磁通对其周围的金属产生的涡流发热；在发生短路情况下该装置快速断开，重新将电抗器投入，限制短路电流。
By high capacity high-speed switch, the series reactor is shorted during normal operation, eliminating the reactor leakage magnetic flux to eddy hot produced metal member around it.
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