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。
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。
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