The Siemens SIPROTEC 7SE20 Travelling Wave Recorder is an innovative solution for monitoring high-voltage transmission and distribution lines. It accurately detects and locates faults, saving time and ensuring a reliable power supply.

The device can be applied for overhead lines of different voltage levels and submarine cables.
It integrates a GNSS receiver for precise time synchronization in nanoseconds, records travelling waves at a sampling frequency of 10 MHz and provides fault records in COMTRADE format. It can measure voltages and currents using existing protection or metering transformers. With SIPROTEC 7SE20, Siemens underscores its commitment to sustainable energy solutions and operational efficiency in high-voltage systems.