The WT1800 and WT3000 series digital power analyzer offer two calculation methods, Type1 and Type3, for apparent and reactive power.

Type1:

The WT will first calculate the RMS voltage Urms, current Irms, and active power P. Then the WT will calculate apparent power S, power factor PF, and reactive power Q.

The WT will first calculate the RMS voltage Urms, current Irms, and active power P. Then the WT will calculate apparent power S, power factor PF, and reactive power Q.

Type3:

The WT will first calculate the RMS voltage Urms, current Irms, active power P and the harmonics of reactive power Q. Then the WT will calculate the apparent power S and power factor PF. Q is calculated to include all the harmonic components.

The WT will first calculate the RMS voltage Urms, current Irms, active power P and the harmonics of reactive power Q. Then the WT will calculate the apparent power S and power factor PF. Q is calculated to include all the harmonic components.

Please refer to the attached document.

With 0.02% accuracy and 1MHz bandwidth, the WT3000 delivers where the highest precision measurements are required. It is the industry standard for R&D work on inverters, motor drives, lighting systems and electronic ballasts, UPS systems, aircraft power, transformer testing, and other power conversion devices.

The WT1800 Power Analyzer offers maximum flexibility with up to six wattmeter elements, high bandwidths, simultaneous high speed digitizing, and wide voltage and current ranges. Although this model is still available, the newer WT1800E offers higher accuracy.

Measure characteristics of devices that generate, transform or consume electricity. Also called power meters or wattmeters, these devices measure parameters such as true power (watts), power factor, harmonics, and efficiency.

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