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Parallel RLC

Parallel RLC. Circuit Representation. Resistance Rt @ 0 degrees as I is in phase Inductive Reactance X L @ -90 degrees I lags Capacitvie Reactance Xc @ 90 degrees I leads Current Total Formula by use of polar form It = Ir<0 + Ixl<-90 + Ixc<90 It = __ @angle which is the p.f< of the ckt.

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Parallel RLC

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  1. Parallel RLC

  2. Circuit Representation

  3. Resistance Rt @ 0 degrees as I is in phase Inductive Reactance XL @ -90 degrees I lags Capacitvie Reactance Xc @ 90 degrees I leads Current Total Formula by use of polar form It = Ir<0 + Ixl<-90 + Ixc<90 It = __ @angle which is the p.f< of the ckt Current In Parallel RLC

  4. Phasor Representation

  5. Impedance Triangle Cannot be used!! Impedance is only calculate by this formula Zt = E / It Impedance

  6. P.F is found through current calculations Power Total Pt = Pr or Pt = E x Ir x P.F Reacitive Power ( calculate same as series) QXL = E x IXL QXC = E x Ixc Qt = QXL - Qxc Qt=√S²-P² Apparent Power St = Pt@0 + Qt@90 or -90 St= Es x It St - __@ angle – p.f angle same as current angle Power Triangle

  7. Power Triangle

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