| Title |
Characteristics Analysis of Power Capacitor with Unbalanced Voltage Operation |
| Authors |
Jong-Gyeum Kim ; Young-Jeen Park ; Eun-Woong Lee |
| Keywords |
Voltage unbalance ; Power capacitor ; Reactive power ; p-q theory ; Induction motor |
| Abstract |
In the three phase four wire system, voltage unbalance caused by the unbalanced load operation, gives rise to current unbalance and de-rates by the increase of machine"s loss and eventually enlarges power capacity and besides has a bad effect on power quality. Power capacitor has been used for the power factor correction of inductive load and the voltage stability of power system And it uses instead of power side for magnetic excitation of induction motor. If voltage unbalance keeps up, it affects on voltage stress at the power capacitor and finally can be caused breakdown. In this paper, we analyzed that voltage and current of power capacitor increases by the voltage unbalance factor and its stress is growing more and more. |