Ground Fault Monitoring
Delivering intelligent monitoring and protection for rail power networks.
Detect, Diagnose & Prevent Electrical Ground Faults
Protecting safety and reliability across the railway network.
Ground faults are one of the leading causes of electrical disruption across railway power networks. We see that traditional detection methods often rely on manual testing and reactive maintenance, delaying response times and increasing operational risk.
Through advanced monitoring solutions such as CableGuardian, V-LIM, and SSTDR, we provide continuous visibility of insulation resistance, leakage currents, and fault location. This enables early detection, accurate fault location, and timely intervention before issues escalate.
With live data, predictive insights, and automated alerts, our systems help maintain safe, reliable power delivery across signalling, traction, and auxiliary networks.
Keeping the Trains Running on Time.
Supporting Railways
We developed CableGuardian in collaboration with Network Rail to improve the reliability, safety, and maintainability of signalling power systems. By delivering continuous, real-time cable condition monitoring and precise fault location, we enable predictive maintenance, reduce on-track testing, and improve the overall operational performance of the railway.
Cross-Industry Technologies
How Viper supports ground fault monitoring
Viper’s integrated suite of technologies delivers complete control and insight across all electrical systems:Â
Our integrated suite of technologies delivers complete control and insight across electrical systems.
CableGuardian provides live insulation resistance monitoring and fault detection, continuously monitoring power feeders and cable sections to identify leakage currents and emerging issues. V-LIM adds continuous electrical integrity monitoring for both energised and de-energised systems, supporting safe operation at all times. SSTDR enables rapid, precise fault location across complex networks, pinpointing resistive and intermittent faults in live systems without disruption. PlatformVi and CableGuardian centralise analytics and reporting, delivering visual diagnostics, historic trends, and maintenance recommendations for proactive asset management.
Together, these connected technologies replace manual testing with intelligent monitoring, delivering immediate fault visibility, faster recovery, reduced delay per incident, and improved operational efficiency.
Visibility of System Health
Maximise system life with integrated integrity solutions
Detect Early. Protect the Network. Prevent Disruption.
Partner with Viper Innovations to modernise rail ground fault monitoring through intelligent, connected systems that keep the network running safely and efficiently
Integration with CableGuardian
Ground fault monitoring forms a core part of our CableGuardian ecosystem. Developed in collaboration with Network Rail, CableGuardian delivers real-time electrical condition monitoring and fault detection for signalling power networks.
By integrating ground fault monitoring within this platform, a single source of truth is provided for electrical integrity across the network, from feeders through to final circuits.
Case Study
Enhanced Signalling Power System Monitoring
Network Rail Wales & Western Region partnered with us to address persistent low insulation resistance issues across an ageing Signalling Power System. By deploying CableGuardian in a Tier 2 configuration, asset visibility was transformed from a single network-wide value to precise, feeder-level insulation monitoring. This delivered clearer fault identification, stronger decision-making, and a safer, more efficient approach to signalling power system asset management.
