A device to be attached to an overhead power line for the purpose of manipulating movement of the overhead power line comprises an electric power source; a base, defining a base plane; and a clamp, secured to the base, to be attached to a section of the overhead power line. The device further comprises a flywheel, having a rotational axis; an actuator, arranged to adjust the rotational axis of the flywheel in dependency of an actuator control signal; and an electric motor, arranged to rotate the flywheel about the rotational axis in dependency of a motor control signal. The device further comprises an acceleration sensing device, secured to the base, providing an acceleration signal; and a controller device, arranged to receive the acceleration signal and to provide the motor control signal and the actuator control signal. The controller device is configured to operate in an overhead power line stabilizing mode. In the overhead power stabilizing mode, the controller device calculates the motor control signal and the actuator control signal in dependency of the acceleration signal in such a way as to minimize the acceleration signal. Advantageously, the controller device is also configured to operate in in an ice removal mode. In the ice removal mode, the controller device calculates the motor control signal and the actuator control signal in dependency of the acceleration signal in such a way as to cause fluctuations in the acceleration measured by the acceleration sensing device.

An eddy current energy-dissipating spacer is mainly composed of a spacer frame, a conductor clamp and energy-dissipating elements. The eddy current energy-dissipating spacer not only provides the function of an ordinary spacer, but also reduces the vibration of the transmission lines; and at the same time, can effectively reduce the vibration of the transmission lines, especially the torsional vibration by adopting the eddy current and viscoelastic material for energy dissipation; improves the eddy current strength by adjusting the gear radius ratio, thus increasing the damping force; can adjust the damping parameters by adjusting the magnetic field strength of the permanent magnet; can produce long-term stable vibration reduction effect by adopting the permanent magnet to provide continuous magnetic field without additional external energy input; can effectively avoid the magnetic flux leakage of magnetic circuits by adopting the magnetic material.

An eddy current energy-dissipating spacer is mainly composed of a spacer frame, a conductor clamp and energy-dissipating elements. The eddy current energy-dissipating spacer not only provides the function of an ordinary spacer, but also reduces the vibration of the transmission lines; and at the same time, can effectively reduce the vibration of the transmission lines, especially the torsional vibration by adopting the eddy current and viscoelastic material for energy dissipation; improves the eddy current strength by adjusting the gear radius ratio, thus increasing the damping force; can adjust the damping parameters by adjusting the magnetic field strength of the permanent magnet; can produce long-term stable vibration reduction effect by adopting the permanent magnet to provide continuous magnetic field without additional external energy input; can effectively avoid the magnetic flux leakage of magnetic circuits by adopting the magnetic material.

Galloping motion disruptors and methods for reducing conductor galloping are provided. A galloping motion disruptor includes a first disruptor rod and a second disruptor rod. Each of the first and second disruptor rods includes a first end portion, a second end portion, and a mid-section between the first end portion and the second end portion. The first end portion includes a helical gripping section. The second end portion includes a hook section. The hook sections of the first and second disruptor rods are connectable to each other.

Galloping motion disruptors and methods for reducing conductor galloping are provided. A galloping motion disruptor includes a first disruptor rod and a second disruptor rod. Each of the first and second disruptor rods includes a first end portion, a second end portion, and a mid-section between the first end portion and the second end portion. The first end portion includes a helical gripping section. The second end portion includes a hook section. The hook sections of the first and second disruptor rods are connectable to each other.

A system and method for installing bird flight diverters on wires, such as power lines and guy wires, is described. The system and method include the use of an unmanned aerial vehicle to place a robotic line crawler onto wires where the line crawler is configured to place bird flight diverters on the wire as the line crawler travels along the wire.

Various embodiments of a system and method for reducing vibrations in and inspecting a suspended cable are described. In one embodiment, a vibration control robot includes a frame roller cage configured to roll open and closed around a cable, a drive system comprising a motor system to maneuver the robot along the cable, and a vibration absorption system to admit and absorb mechanical vibrations from the cable. The vibration absorption system can include a messenger cable segment of a predetermined length, where the messenger cable segment is mechanically coupled with the frame to admit mechanical vibrations on the cable. The vibration absorption system can also include an absorbing counterweight tip mass, a sliding mass, and a permanent magnet of an electromagnetic transducer device, to convert the mechanical vibrations in the messenger cable into electrical energy.

Various embodiments of a system and method for reducing vibrations in and inspecting a suspended cable are described. In one embodiment, a vibration control robot includes a frame roller cage configured to roll open and closed around a cable, a drive system comprising a motor system to maneuver the robot along the cable, and a vibration absorption system to admit and absorb mechanical vibrations from the cable. The vibration absorption system can include a messenger cable segment of a predetermined length, where the messenger cable segment is mechanically coupled with the frame to admit mechanical vibrations on the cable. The vibration absorption system can also include an absorbing counterweight tip mass, a sliding mass, and a permanent magnet of an electromagnetic transducer device, to convert the mechanical vibrations in the messenger cable into electrical energy.

A vibration damper for damping vibrations of a cable includes an attachment portion configured to be attached to the cable while the cable is energized. The vibration damper also includes a flexible leg portion attached to the attachment portion. The vibration damper further includes a weighted portion attached to the flexible leg portion. The weighted portion is spaced a separation distance from the attachment portion and the weighted portion is movable relative to the attachment portion via the flexible leg portion to dampen the vibrations.

A vibration damper for damping vibrations of a cable includes an attachment portion configured to be attached to the cable while the cable is energized. The vibration damper also includes a flexible leg portion attached to the attachment portion. The vibration damper further includes a weighted portion attached to the flexible leg portion. The weighted portion is spaced a separation distance from the attachment portion and the weighted portion is movable relative to the attachment portion via the flexible leg portion to dampen the vibrations.