The new intelligent decoupler is primarily used in pipeline stray current drainage systems, commonly encountering interference sources such as high-voltage transmission lines, electrified railways, and high-speed rail areas parallel or intersecting with pipelines. The intelligent decoupler consists of two main parts: the drainage module and the monitoring, collection, and transmission module. The drainage module performs grounding isolation of the cathodic protection potential of buried steel pipelines, while simultaneously providing real-time grounding connection for resistive, capacitive, and inductive couplings caused by electrified railways, high-voltage transmission lines, or other interference sources. It discharges the stray current into the ground, eliminating the conduction of stray current in the pipeline, blocking the outflow of stray current from the corrosion-resistant coating damage points, thereby protecting the pipeline from accelerated corrosion by stray current.

The Solid-State Decoupler Monitoring and Data Transmission Module can simultaneously monitor both AC and DC flow rates of the decoupler, as well as collect and monitor the potential interference before and after the flow in the pipeline. It can also monitor the cathodic protection potentials, such as energized, de-energized, and natural potentials, on the pipeline. Furthermore, it can collect and monitor the operational status of the decoupler itself, including AC impedance and temperature.