Precise Localization of High-Voltage Breakdown Events using $\varphi$-Optical Time-Domain Reflectometry on an Optical Ground Wire

Konstantinos Alexoudis, Luke Silvestre, Tom Huiskamp +6

We present $\varphi$-OTDR for detecting and localising full spark-gap breakdowns by analysing backscattered light phase and frequency-domain signatures during high-voltage discharges syn…