This paper introduces the checking methods of the measuring devices adopting AC sampling mode, and analyses the appropriate cases these methods are used in.
为此重点介绍了对交流采样测量装置的校验方法：现场实负荷校验及虚负荷校验； 并对校验方式的适用情况进行了分析。
China's mines are hoist AC Induction Motor Drive, and its electrical control system uses a rotor series, cutting speed resistance , by the relay - contactor control devices constitute a logical.
我国矿井提升绞车大多是采用交流异步电机拖动，其电气控制系统采用转子串、切电阻调速，由继电器-接触器构成逻辑控制装置。
With its AC capabilities, the PLB171P is ideal for reducing standby power consumption by cutting the power to devices that are not in use, thus reducing 'Vampire Power'.
其交流能力，PLB171P是理想的通过切断电源，即在不使用设备降低待机功耗，从而减少'吸血鬼电源“。
To present large capacity and high performance ac drive devices for main motors of the mill.
简单介绍了用于轧钢机主传动的大容量、高性能交流传动装置。
It overcomes the major limitation that system designers often encounter whereby they must locate powered network devices within close proximity to AC power outlets.
它克服了系统设计人员经常遇到的障碍——必须把用电的网络设备和交流插座尽量放在一起。
Based on the ac permanent magnetic synchronous linear motor in IC packaging devices, the fundamental principle of linear motor is introduced and a simple but effective model is established.
针对高速高精芯片封装平台的交流永磁直线同步电机驱动系统，阐述直线电机运行的基本机理，并建立简洁实用的数学驱动模型。
Turn off all peripheral devices connected to the computer. Turn off the computer and disconnect the AC power cord.
关闭与计算机连接的所有外设的电源。关闭计算机并断开交流电源线。
It is more suitable for AC asynchronous motors vector to be controlled with DSP microprocessors in the light of speed and richness of peripherals devices.
采用DSP微处理器对交流异步电机矢量控制，从速度和外设的丰富程度更适合数字式电机控制。
Systems are generally solar panels, batteries, controller, DC-AC change devices and lamps and so on.
系统一般由太阳能电池板、蓄电池、控制器、DC-AC转变器和照明灯具等组成。
Systems are generally solar panels, batteries, controller, DC-AC change devices and lamps and so on.
系统一般由太阳能电池板、蓄电池、控制器、DC-AC转变器和照明灯具等组成。
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