INTRODUCTION OF VIRTUAL DC BUS IN A TRANSFORMERLESS GRID CONNECTED COST EFFECTIVE PV SYSTEM FOR

Reliable electric power supply with minimised failures is the key factor that the present society is keenly looking for. Higher voltages and supporting devices are being devised for better power transmission. But the still followed manual inspection of overhead lines throws light on the fact that these tasks are tedious, expensive, time consuming and extremely dangerous and the hazard of those people working on the fault detection and rectificaton is still at large . So as a noval life saving project, research focussed on automating the inspection by mobile robots which surpasses the above mentioned disadvantages. The mobile robot proposed in this paper is an RF remote controlled one with mainly three instructions of start, stop and reverse. The VSWR method chosen for fault location provides with the actual positioning of fault along the transmission line.