Spark gap retrofit module for surge arrester
AssigneeMcGraw-Edison Company
InventorsAnand Sharad Kulkarni, Dean Marion Jones
Life of this patent
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Abstract
A surge arrester having electrical connections to a source of power and to electrical ground is retrofitted with a spark gap assembly to improve performance of the surge arrester. This is accomplished by a providing a spark gap module including at least one spark gap assembly sealed within a housing, disconnecting an electrical connection of the surge arrester, and connecting the spark gap module between the electrical connection and the surge arrester.
Claims39
A method of retrofitting a surge arrester having electrical connections to a source of power and to electrical ground with a spark gap assembly to improve performance of the surge arrester, the method comprising:
- providing a spark gap module including at least one spark gap assembly sealed within an insulating housing;
- disconnecting an electrical connection of the surge arrester;
- and
- connecting the spark gap module between the electrical connection and the surge arrester.
A method of retrofitting a surge arrester with a spark gap assembly to improve performance of the surge arrester, the method comprising:
- providing a spark gap module including at least one spark gap assembly sealed within an insulating housing;
- providing a surge arrester including an active electrical component sealed within a second, separate insulating housing;
- and
- connecting the spark gap module to the surge arrester.
A retrofit module for adding a spark gap assembly to a surge arrester to improve performance of the surge arrester, the module comprising:
- an insulating housing;
- a first electrode within the insulating housing;
- a second electrode within the insulating housing;
- a grading structure positioned inside the insulating housing between the first electrode and the second electrode to form a space defining a spark gap between the first electrode and the second electrode;
- and
- structure for electrically connecting the spark gap assembly to a surge arrester, the structure being accessible from outside the insulating housing.
Dependencies are inferred from the claim text.