Series Compensated Transmission Line Protected With Mov

Abstract: This paper presents an analysis of the effects of series line compensation levels on the transmission line voltage profile, transferred power and transmission losses for different static load models. For this purpose, a simple model is developed to calculate the series and/or shunt compensated transmission line load voltage. Consequently, different shunt and series compensation levels are used with several voltage sensitive load models for two different line models. It is observed that the compensation level is significantly affected by the voltage sensitivities of loads. Moreover, the voltage level of the transmission is an important issue for the selection of the shunt and series capacitor sizes when load voltage dependency is used. Rapid load growth and low water levels of the reservoirs create much stress on the power balance problem and on the existing transmission lines. In paper, a protection system for transmission lines using series capacitors is discussed in detail.