Measurement of surge current and voltage waveforms using optical-transmission techniques

Newly designed optical measuring systems developed for the measurement of highfrequency currents and voltages at high-potential points are introduced. These systems are applied to the measurement of surge voltages and currents at reactor switching and proved to be very helpful in perceiving high-frequency phenomena in highvoltage systems. As another application of these systems, an application to the measurement of disconnecting-switch restriking surge is also introduced in the paper.