VLF Sine 37 — the lightest, smallest, and most powerful device in its class for comprehensive testing and diagnostics of medium voltage cables. Product Overview VLF Sine 37 kV with integrated delta tangent is a compact, durable, and portable testing and diagnostic system designed for medium voltage cable networks. A powerful comprehensive solution for testing and diagnosing medium voltage cables. Combining reliable performance with practical mobility, VLF Sine 37 stands out as the most powerful portable device in its class, capable of testing up to 1.6 μF at 26 kVRMS, enabling reliable testing and diagnostics of cables over 5 km long with ease. This device is truly multifunctional. It performs:
Medium voltage and DC testing Sheath testing and sheath fault detection (using ESG NT2 step voltage probe) Delta tangent measurement for accurate assessment of cable condition and insulation integrity Can be used as a power source for partial discharge (PD) measurements to detect local issues such as manufacturing problems.
Thanks to intelligent frequency regulation, the system automatically adjusts the test frequency based on cable length, ensuring testing even for cables with a nominal voltage of 15 kV up to 25 km.
