An engineering assessment of the alternative ways of transmitting electric power from the current hydroelectric works in the Waitaki Basin : Presented in partial fulfilment of the requirements for the Degree of Master of Science in the University of Canterbury

Abstract

The objective of this study was to reconsider the methods and routes by which electric power developed by the planned hydroelectric stations in the Waitaki Basin could be transmitted with due regard to planning systems. Power transmission methods are surveyed and discussed. The directions in which research is moving and the likely alternatives to the most commonly used method, overhead wire, are outlined. it is found that transmission by overhead wire is the only practicable method for transmission at the present time. The New Zealand power planning system is briefly explained. The relationships between each of the elements of the system are discussed. Improving the system by adding formal representation of a broad spectrum of disciplines and integrated national planning is suggested. Present power transmission from the hydroelectric works in the Waitaki Basin and transmission line design philosophy are reviewed. The merits and demerits of these are discussed. Two alternatives to the present system are given using the power corridor concept as part of the design philosophy. It is concluded that the first of these alternatives could have proven useful and that the power corridor concept could have much appeal to transmission line designers concerned about reduced costs in line maintenance and public amenity