The invention provides a telescopic damping galloping suppression device and
system.The device is hung between two adjacent wires of an overhead
transmission line and comprises a conductor outer cylinder, an elastic telescopic part, a magnetic
piston and a pull rod, and the elastic telescopic part, the magnetic
piston and the pull rod are arranged in the conductor outer cylinder and connected in sequence; the conductor outer cylinder is connected with a lead; the pull rod penetrates out of the other end of the conductor outer cylinder, is connected with the other wire, and is used for driving the magnetic
piston to move when a galloping displacement difference exists between two adjacent wires; the conductor outer cylinder cuts a magnetic induction line of the moving magnetic piston to realize a
hysteresis damping function and generate heat and consume energy so as to restrain conductor galloping; according to the device, the magnetic piston telescopically moves in the conductor outer cylinder, electromagnetic
eddy current is generated on the conductor outer cylinder, and displacement limitation of
hysteresis damping on the magnetic piston is achieved; meanwhile, the electromagnetic
eddy current can effectively heat the air, reduce the
icing thickness of the overhead
transmission line, form forward feedback, and reduce the waving risk of the overhead
transmission line.