Klydonograph The Klydonograph which a measurement of voltages-surge on transmission lines. Klydonograph is placed directly on the line. From the shape and size of the figure, an estimate regarding the magnitude, wavefront, and polarity of the wave can be made. It is a device that makes use of patterns known as Lichtenberg Figures Which are produced on photographic in by surface corona discharge. Since lighting surge is infrequent ( rare ) and random in nature. Hence it is necessary to install a large no. of recording devices to obtain a reasonable amount of data regarding these surges produced on transmission lines and other equipment Klydonograph Diagram It consists of around electrode resting on the emulsion side of photographic plates. Klydonograph Diagram is shown in Figure (2.25). The homogenous insulating plate is placed between the photographic plate and a metal plate electrode. This insulating plate has a smooth surface. When an electric hold is applied bet