When voltage is a maximum, energy is in the capacitor, no.Spring stretched Mass at standstill Energy in springĬyclic exchange of energy between spring and mass Spring uncompressed Mass at standstill Energy in mass Spring compressed Mass at standstill Energy in spring Reactive Current (amps): IX = Current 90° out of phase with voltage Reactive Power (vars): Apparent Power (VA): Q = -V IX = -V I sinθ θ S = VI IR = Current in phase with voltage P = V IR = V I cosθ θ Resolve current into “real” and “reactive”.Current lags applied voltage by angle θ.Synchronous generator acts like a capacitor (produces Vars) or an inductor (consumes Vars) Real Power (watts) Power System Reactive Power (vars) (Looks inductive) – Needed for control of voltage on the grid Secondary function: Source or sink of reactive power (Vars). Primary function: Produce power for revenue sales to.– Voltage & current are in time phase – Common use: Shunt to measure current I + R Ohm’s Law: I = V Introduction To Generators GE Proprietary Information March 15, 2000ĩ0° L V(t) = L dI(t) dt I rms = Vrms XL X L = j ωLĩ0° I(t) + C I(t) = C V(t) Introduction To Generators GE Proprietary Information March 15, 2000 Introduction To Generators GE Proprietary Information March 15, 2000
0 Comments
Leave a Reply. |
Details
AuthorWrite something about yourself. No need to be fancy, just an overview. ArchivesCategories |