| 摘要 |
Current of the measurement object is conducted through a first transformer based on the induction phenomenon into a measuring circuit, whereby such a current measurement signal is available in the measuring circuit, which is proportional to the time derivative of the consumption object current. Voltage of the measurement object is conducted directly or through a second transformer into the measuring circuit, whereby such a voltage measurement signal is available in the measuring circuit, which is proportional to the consumption object voltage. The integration is applied to the voltage measurement signal instead of the current measurement signal, and the transient power of the consumption object is calculated by multiplying at each moment of calculation the value of the current measurement signal by the value of the integrated voltage measurement signal.
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