The invention discloses a device for detecting an electric energy metererror under a harmonic condition by adopting a watt-second method, and a detecting method.
本发明公开了一种采用瓦秒法检测谐波条件下电能表误差的装置及检测方法。
2
The invention can automatically record the test frequency and the corresponding electric energy metererror value and can obtain more complete and accurate test data.
本发明可自动记录试验频率和相对应的电能表误差值，且使试验数据更全面、准确。
3
The decreasing error is a nice reminder, and ACTS as a sort of progress meter during long runs. But, the final result is what is impressive.