Spark gap assembly for overvoltage protection and surge arrester
AssigneeHubbell Incorporated
InventorsStephen Franklin Poterala, Bastiaan Hubertus van Besouw, Sidharth Suresh Iyer
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Abstract
A spark gap assembly that includes a first spark gap segment and a second spark gap segment electrically connected in series with the first spark gap segment. The first spark gap includes a first spark gap and a first grading circuit electrically connected in parallel with the first spark gap. The second spark gap segment includes a second spark gap and a second grading circuit electrically connected in parallel with the second spark gap.
Claims23
A spark gap assembly comprising:
- a first spark gap segment including:
- a first spark gap;
- and a first grading circuit electrically connected in parallel with the first spark gap;
- and a second spark gap segment electrically connected in series with the first spark gap segment, the second spark gap segment including:
- a second spark gap;
- and a second grading circuit electrically connected in parallel with the second spark gap, wherein a first ratio of a voltage across the first spark gap to a sparkover voltage of the first spark gap is substantially equal to a second ratio of a voltage across the second spark gap to a sparkover voltage of the second spark gap when the spark gap assembly is operated at a first operating frequency.
An arrester comprising:
- a spark gap assembly including:
- a first spark gap segment including:
- a first spark gap;
- and a first grading circuit electrically connected in parallel with the first spark gap;
- and a second spark gap segment electrically connected in series with the first spark gap segment, the second spark gap segment including:
- a second spark gap;
- and a second grading circuit electrically connected in parallel with the second spark gap, wherein a first ratio of a voltage across the first spark gap to a sparkover voltage of the first spark gap is substantially equal to a second ratio of a voltage across the second spark gap to a sparkover voltage of the second spark gap when the spark gap assembly is operated at a first operating frequency.
An accessory device electrically connected in series with an arrester, the accessory device comprising:
- a spark gap assembly including:
- a first spark gap segment including:
- a first spark gap;
- and a first grading circuit electrically connected in parallel with the first spark gap;
- and a second spark gap segment electrically connected in series with the first spark gap segment, the second spark gap segment including:
- a second spark gap;
- and a second grading circuit electrically connected in parallel with the second spark gap, wherein a first ratio of a voltage across the first spark gap to a sparkover voltage of the first spark gap is substantially equal to a second ratio of a voltage across the second spark gap to a sparkover voltage of the second spark gap when the spark gap assembly is operated at a first operating frequency.
Dependencies are inferred from the claim text.