Apparatus and method for sensing power line conditions
AssigneeLindsey Manufacturing Company
InventorKeith E. Lindsey
Life of this patent
Estimating the term…
Abstract
A line condition sensing device, e.g. a current transformer and/or a voltage transformer, is embedded in a pole mounted, power line supporting insulator to form an integral unit therewith. One end of the insulator carries a pole mounting base. The other end of the insulator carries a power line receiving clamp. The line condition sensing device is connected in parallel with a hot power line by taps to permit conditions to be monitored without cutting or dead ending the line. The device is installed on a hot line by opening the power line receiving clamp of the original insulator, holding the power line in spaced relationship from the original insulator while replacing it with the new insulator, resecuring the power line on the clamp of the new insulator, and then connecting the taps to the hot power line.
Claims41
Electrical power line sensing apparatus comprising:
- an electrical insulator having first and second ends;
- means for sensing power line conditions embedded in the insulator;
- first and second cables coupled to the sensing means and extending therefrom outside the insulator;
- a power line clamp attached to the first end of the insulator;
- and
- a pole mounting base attached to the second end of the insulator.
In a power transmission system having power poles and at least one power line, the combination comprising:
- an electrical insulator mounted on the pole to support the line in space relationship from the pole;
- means mounted on the pole for sensing power line conditions;
- a first cable connected at one end to the sensing means;
- a second cable connected at one end to the sensing means;
- means for connecting the other end of the first cable to the power line;
- and
- means for connecting the other end of the second cable to the power line to place the sensing means in parallel circuit with the power line between the connections.
A method for monitoring the conditions of a power line supported by an insulator that is mounted on a power pole, the method comprising the steps of:
- detaching the power line from the insulator;
- lifting the power line away from the insulator;
- dismounting the insulator from the power pole;
- mounting on the power line a new insulator incorporating means for sensing power line conditions;
- lowering the power line onto the new insulator;
- attaching the power line to the new insulator;
- and
- electrically connecting the sensing means to the power line.
Dependencies are inferred from the claim text.