Additionally, some kinds of new electrical energy meters with special functions, and transformers and electrical energy metering chips are introduced.
另外，还介绍了几种特殊功用的新型电能表、互感器和常用电能计量芯片。
This paper introduces the design of error calculator in electrical energy meters testing equipment of 0.01 or 0.02 classes, and analyses the count error and its improvement methods.
本文介绍了0.01或0.02级交流电能表检定装置误差计算器的设计原理，并分析了其测量误差及其改善方法。
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