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power factor

  1. eveares

    How do you calculate the complex power phase angle (φ) for reactive power calculations?

    I know you can find reactive power out from the alternative formula below, but using the formula "P(W) = V(V) × I(A) × cos φ", how do you obtain the complex power phase angle (φ) from knowing the Voltage, Power and Current? Alternative formula: Reactive Power=√ (Apparent Power²– True power²)...
    • eveares
    • Thread
    • maths phase phase angle power power factor reactive power theory
    • Replies: 8
    • Forum: Electrics UK
  2. eveares

    Speaker Wattage Woes!

    So a couple of months back I got a pair of Alto True Sonic TS210 PA speakers for outdoor events. However the wattage rating of them is strange to say the least. According to https://www.altoproaudio.com/downloads/Alto-Professional-TS210-Spec-Sheet.pdf, they have a continuous RMS power rating...
    • eveares
    • Thread
    • alto speakers amp audio peak power power factor rms speaker wattage
    • Replies: 19
    • Forum: Electrics UK
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