新一代单相多表位交流电度表检定装置的原理和检定

Principle and calibration of new type calibration equipment with multi－meter position for single－phase watt－hour meter

阐述了单相多表位交流电度表检定装置的原理，还重点介绍隔离电压互感器的结构、功能、自检线路，以及装置的检定及注意事项。

：This article explains the principle of new type calibration equipment with multi－meter position for single－phase watt－hour meter，emphatically introduces the configuration and function of the isolated voltage transformer．Also in this paper ，the self－calibrating circuit of the isolated voltage transformer and notice of equipment verification are described．