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Three-Phase Wattmeter
OTHER ELECTRICAL MEASURING DEVICES

Electrical Science Volume 4 of 4
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WATTMETERS Test Instruments & Measuring Devices Figure 13    Two Wattmeters to Measure 3f  Power Summary Wattmeters are summarized below. Wattmeter Summary Measures real power delivered to the load Single-phase AC or DC - voltage component (movable coil) connected in parallel with the load and the current component (fixed coil) connected in series with the load Three-phase AC - summation of Phase A and B powers ES-14 Page 22 Rev. 0







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