A.C Fundamentals, Circuits And Circuit Theory Set 4

The current is in phase with the voltage The current lags behind the voltage by 90° The current leads the voltage by 90° The current can lead or lag by 90°

Current lags behind the voltage by 90° Current leads the voltage by 90° Current can lead or lag the voltage by 90° Current is in phase with the voltage

kW kVA kV kVAR

180° 90° 60° 0°

Can dissipate considerable amount of power Can act as energy storage devices Connecting them in parallel increases the total value Oppose sudden changes in voltage