双向单相有功电能表和三相无功电能表的检定

Verification of bidirectional single-phase watthour meter & three-phase varhour meter

介绍双向单相有功电能表和三相无功电能表检定时应注意的事项 ,提出减小双向单相有功电能表正、反向计量误差变化的办法 ,指出现在有的电能表检定装置 ,检定双向三相无功电能表时存在的不足及其解决办法。

This article introduced something should be pay a attention to when we verify bidirectional single-phase watthour meter and three-phase varhour meter, advanced a method of reducing bidirectional single-phase watthour meter forward and backward direction measuring error change, point out some deficiencies in the power meter verification device when it verify bidirectional three-phase varpower meter.