Abstract
Loss Minimization in distribution systems has assumed greater significance recently since the trend towards distribution automation will require the most efficient operating scenario for economic viability. System loss reduction is generally achieved via capacitor placement in the distribution network. Optimality is achieved for optimal sizing and placement conditions. Recently, researchers are concerned with development of algorithms that lead to the reduction of computational requirements. In this paper, the problem of loss minimization, capacitor allocation and sizing is linearized. The linearization is achieved by linearizing the problem in terms of the reactive compensation and voltage changes. This eliminates the need for recomputing the load flow problem. The linearized formulae are derived as functions of voltage changes and capacitor settings. Transformers (voltage regulators) settings can be easily included in the derivations.