The method of the period verification based on Shewhart controlling graph in the electrical energy measuring equipments
Jingshu Liu · Electrical Measurement & Instrumentation · 2008
In this paper the period verification on the electrical energy measuring equipments is introduced.In particularly,the method of the period verification based on Shewhart controlling graph is proposed.For the period verification on the three-phase electrical energy meter verification equipment,the reliability of the equipment is proved.It indicates that the believable state of the measuring result is ensured effectively.