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Synaptec Greenlight™ - Advanced Cable Monitoring for High-Voltage Networks

Shining light on hidden stresses with continuous, online monitoring.

Synaptec Greenlight™ provides continuous, online monitoring of high-voltage cables, detecting hidden stresses at joints and terminations to prevent failures, reduce maintenance costs, and extend asset life. Gain actionable insights to optimise performance and ensure grid reliability.

Prevent Costly Failures

Greenlight™ detects hidden degradation and stresses at joints and terminations, preventing failures and costly outages. Its deterministic monitoring ensures safety, compliance, and reduces unnecessary high-voltage site visits.

Optimise Cable Reliability

Greenlight™ provides real-time monitoring and early anomaly detection to reduce outages, improve uptime KPIs, and extend the life of high-voltage cables. Scalable fibre-based sensors ensure reliable insights across long transmission assets.

Actionable Insights for Smarter Decisions

Greenlight™ turns complex signals into actionable insights, enabling smarter maintenance, reduced costs, and confident asset optimisation. Deterministic data supports compliance reporting and proactive risk management.

Why choose Greenlight?

How it works

Passive Sensors

Advanced passive sensors are employed at critical cable joints and terminations. These sensors monitor key parameters like phase current, screen current, and temperature, providing detailed insights into cable system health. Passive sensors consume minimal power, improving reliability, and their non-intrusive design allows installation without disrupting network operation. This lays the groundwork for cable monitoring, enabling early detection of issues like overheating, imbalanced loads, or partial discharge.

Interrogators

The sensors transmit data to the Interrogator unit, a central hub usually located at the substation. The Interrogator synchronizes data from multiple sensors, providing a clear view of system performance. It uses advanced algorithms to filter noise and extract key insights from raw data, analysing it in real time to highlight trends or potential issues. This integration also allows scalability, making it easy to add more sensors without major reconfiguration.

Synthesis

All processed data is sent to the Synthesis platform, a software solution that provides real-time visualisation of asset health. Intuitive dashboards and graphics display key performance metrics, helping operators easily spot abnormalities. Synthesis not only flags issues but also offers actionable insights and prioritised maintenance recommendations, enabling teams to address problems before they escalate.

Frequently asked questions

Greenlight monitors all cable joints and terminations without requiring control power or maintenance. Its early-warning system ensures faults are identified well before they lead to failures. Its passive sensors eliminate the need for control power or additional infrastructure at remote locations, making it an efficient and cost-effective solution for automating dependable and precise monitoring of these vital assets.

Yes, Greenlight is designed for ease of retrofit and seamless integration with underground and subsea cables, including solid-bonded and cross-bonded architectures. 

By continuously monitoring and analysing data, Greenlight's proactive insights help operators address small issues before they escalate, avoiding expensive disruptions. 

Additional resources

Greenlight Data Sheet

Get more information and product specs in our datasheet

Download datasheet

Greenlight Brochure

Get an overview of Greenlight, its features and applications

Download brochure

Case study : Red Eléctrica

Cable condition monitoring of underground power cable joints to provide earlier warning of more cable failure modes when compared to conventional monitoring.

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