Digital watt-hourmeter is the necessary equipment with increasingly wide application while it is necessary realization of quantity traceability.
数字式电能表是必备设备,应用越来越广泛,实现量值溯源是非常有必要的。
2
The metering error considers the non linear effect of the voltage coil and current coil in watthourmeter under different order of harmonics and different distortion degree of input waveform.
计量误差考虑了电度表电压线圈和电流线圈在不同的谐波次数以及谐波大小时的非线性效应。
3
The most important problem of the watt-hourmeter is dependability and precision.