SFX32 (Surgeflex 32) - 32 kV, 1750 J cable test and fault location system

Overview

The SFX32 (Surgeflex 32) is a 32 kV, 1750 J mobile cable test and fault location system for locating and pinpointing faults in low and medium voltage cables. It is described as a portable fault location system with mains power source for portable cable fault location. The instrument uses the ARM (Arc Reflection Method) with sophisticated ARM multi-shot technology for pre-location of high-resistance faults up to 32 kV and supports fault conditioning by short-term burning at all voltage levels. The system comprises two modules: a high-voltage surge unit with DC testing/burning capabilities and selectable voltage levels up to 32 kV, and a detachable, battery-operated time domain reflectometer (TDR Teleflex SX) with up to 400 MHz sampling rate. Additional hardware features include multi-stage surge capacitors and a specified accuracy of 0.1%. The SFX32 series is designed for cable testing tasks including pre-location, fault conditioning, pinpointing and sheath fault location on low and medium voltage cables. Its ARM pre-location capability for high-resistance faults, combined with the high surge energy and TDR Teleflex SX measurements, is stated to reduce troubleshooting time, improve work efficiency, and provide quick and reliable fault location even on more challenging faults.