Method and device for installing and removing a current transformer on and from a current-carrying power line

A device for reducing magnetic forces exerted on a current transformer (90) positioned about a current-carrying conductor (5), wherein the current transformer comprises a magnetically permeable core (100) having at least two split core parts (110, 120) separable by a gap (130), and wherein

• the gap can be closed so as to allow the split core parts to form a substantially closed-loop around the current-carrying conductor in a closed configuration, and
• the gap can be widened so as to allow the current transformer to be removed from the current-carrying conductor, and wherein the current transformer further comprises a winding having a plurality of turns of an electrical conductor wound around the magnetically permeable core, said device comprising:
• a shorting device (192) in operative engagement with the winding (140) so as to be able to short the winding;
• and
• a mechanism (194), positioned relative to the split core parts so as to be able to close the gap between the split core parts or to separate the split core parts from each other.

A current transformer (90) to be positioned about a current-carrying conductor (5), comprising:

• a magnetically permeable core (100) having at least two split core parts (110, 120) separable by a gap (130), wherein the gap can be closed so as to allow the split core parts to form a substantially closed-loop around the current-carrying conductor in a closed configuration, and the gap can be widened for separating the split core parts from each other so as to allow the current transformer to be removed from around the current-carrying conductor;
• a winding (140) having a plurality of turns of an electrical conductor wound around the magnetically permeable core;
• and
• a shorting device (192) positioned relative to the winding so as to be able to:
• short the winding prior to closing the gap, and to be able to
• short the winding prior to separating the split core parts if the split core parts are in the closed configuration.