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P(kW) = S(VA) × PF / 1000
Активен товар лампа има работен ток 1А при 220В напрежение.
Токът и напрежението са във фаза:
S = P = 220 * 1 = 220 W
PF = P/S = 220 / 220 = 1
Реактивен товар пералня има работен ток 1А при 220В напрежение
и фазова разлика 45 градуса.
S=220*1=220 W.
P=220*1*cos(45)=220*0.707=155.5 W.
PF=P/S=155.5/220=0.71
WAGO
WRONG
SPDT - Single Pole, Double Throw
SPDT / 3-way SPDT / 3-way
WRONG
SPDT / 3-way SPDT / 3-way
SPDT / 3-way SPDT / 3-way
SPDT / 3-way SPDT / 3-way4-way

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