With its single rotatory knob or touch screen control and its fully automated motorised HV switches, the STX 40 is the most convenient and most powerful portable fault location unit in the market.
It is ideally suited for all essential fault locating tasks, such as analysing, prelocating and pinpointing of faults on low voltage and medium voltage XLPE or EPR insulated cables. With its 40 kV DC source and a potent high frequency burner it is also highly effective on PILC cables.
The STX40 redefines the state-of-the-art: as a complete package it comes with all necessary fault locating components fully integrated in a single robust housing. The STX is the only system in its class with 7 fault locating methods built-in:
Fault location systems have to meet steep requirements to be considered truly portable and outdoor-ready for use in the field. Units must be lightweight, rugged, very mobile in adverse terrain and as compact in size as possible. Units must also be operable in rain as well as in very bright daylight conditions with intense sunshine. With its IP43 rating, low weight and pneumatic tyres, the STX40 is the only fault locating unit in its class with this high degree of outdoor-readiness.
The STX40 also has a very wide operating temperature range. No matter whether you are fault locating somewhere in the desert in +55°C or somewhere near the polar circle in -20°C, no matter whether you are up in the mountains at high altitudes where the air is thinner or somewhere in the jungle in humid or tropical conditions – the STX40 is built for all climates.
Centrix Evolution is Megger’s most advanced and powerful cable fault location system, designed for fast, accurate and cable-friendly identification of faults in low and medium voltage networks. It supports cable systems up to 36 kV and selected classes of high voltage cables, making it suitable for modern distribution grids, renewable installations and industrial networks. Its centrally controlled, fully automated design combines multiple fault location, testing and diagnostic technologies in one integrated platform.
The system features a smartphone-inspired graphical user interface with multi-touch operation and gesture control, supported by an automated workflow that guides users step-by-step through the entire fault location process. This significantly reduces complexity, enabling even less experienced operators to achieve fast and reliable results, while expert users retain full manual control through dedicated advanced modes.
Centrix Evolution integrates Teleflex® RDR cable radar, offering superior performance in time domain reflectometry. Combined with ARM®, ARM Conditioning, ICE and Decay methods, the system enables precise prelocation of faults, even in long or heavily attenuated cables. The Best Picture Multishot function automatically selects the most accurate fault trace from 32 measurements to improve clarity and confidence.
Beyond fault location, the Centrix Evolution can be equipped with powerful VLF testing, Tan Delta measurement and partial discharge diagnostics, enabling standard-compliant condition assessment of medium voltage cables. It supports sinusoidal and cosine-rectangular waveforms, near-line frequency PD testing and DAC diagnostics, allowing both commissioning tests and condition-based maintenance without switching systems.
The system includes SafeDischarge technology with a 32 kJ discharge capacity, live safety monitoring and compliance with key international standards. It is available in single-phase or three-phase configurations and can be customised for vehicle layouts, ensuring flexibility for utilities, contractors and service providers managing complex and high-demand networks.
