Compensation of 110 kV Cable Lines – Possibilities and Limitations

Abstract

This paper discusses problems of the compensation of 110 kV cable lines tens of kilometres long. Such lines are currently built primarily to connect a wind farm, as a consequence of the difficulties in obtaining permits for overhead line construction. Practical design problems derive from the fact of an undetermined cable capacitance and choke reactance (individually manufactured custom devices) and the voltage variation at the interconnection point. With a probabilistic approach possible solutions are suggested for selecting compensation devices.