I. Introduction
In classical approach, power system network only supports the power flow from source side to load side. Rapid growth and developments of the solar PV systems and their associated power electronics technology affected the power system in modern way[1]. PV generation systems are the most emerging approach in distribution network. Roof top grid tied solar PV systems are installed by the consumers along the distribution line. Distributed PV systems will be more efficient for providing power to the domestic loads and at the same time excess power will be supplied to the grid. Load change and line impedance are the two important parameters which will influence the power transfer capability of the distribution network. Distribution networks generally have large Resistance/Reactance ratio (R/X) which effects the power transfer capability in the system [2]. Integration benefits are considerable in terms of decreasing the energy losses and efficient voltage management, control etc [3] - [4]. In spite of these benefits, some integration issues such as voltage fluctuation, power quality etc has been reported [5],[6],[7],[8].In this present situation, power quality issue and power injection must be considered as most critical one [9],[10].There are not much published report on the effect of line impedance and local demand on voltage rise along the line of the distribution network. Voltage rise issue must be addressed when load varies from maximum load condition to light/no load condition with the large number of PV systems in the LV network.