Sheath Current On-Line Monitoring Device

Technical Features:
A real-time online monitoring system for sensing currents in high-voltage cable metallic sheaths (aluminium sheaths, lead sheaths or copper shielding layers). Utilises intelligent methods to ensure safe cable operation and prevent faults caused by abnormal sheath circulating currents. Features automatic triggering of multi-level alarms upon current overlimits, abrupt changes or three-phase imbalances. Combines current phase data with topology diagrams to preliminarily identify multi-point grounding locations. Predicts sheath ageing trends based on long-term data to guide preventive maintenance; Integrates variables such as load and temperature to optimise cable operation strategies. Achieves visualisation, controllability, and manageability of operational status.

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