To monitor the operating condition of the lines and environmental conditions along the lines
To discover hidden dangers that threaten or affect their safe operation in good time

An induction machine intended to detect any faults is fixed to the cable. I is attached to a robot which tows it over the entire cable. The radio-controlled tractor robot is started and controlled remotly.

The induction machine machine containing magnets is closed around the cable to be inspected to create a magnetic circuit. Permanent magnets that are attached to a soft iron core magnetic bridge create a magnetic field.

Inductive coils are placed close to the homogeneous field section to intercept the radial components of the flux lines which will be deflected by obstacle effect in the presence of a fault