用软件系统计算出有功电能、视在电能、无功电能及功率因数等参数。
It can figure out active power, apparent energy, reactive energy and power factor parameter and so on in software system.
本文给出了一种电能计量装置现场校验的方法，通过对三相电能表无功计量误差的校验，可以间接地求得其表计的有功计量误差。
TA field calibration method for power metering device is given. By calibrating the error of the reactive power metering, the error of active power metering can be indirectly calibrated.
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