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Acceptable Voltage Surge? 1
- Thread starter tgott
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1
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It would be preferable to keep it below the rating of your surge arresters.
For a **solidly-grounded** 69 kV system, the Maximum continuous operating voltage of the arrester should be at least 42 kV. With a 42 kV MCOV, the arrester voltage rating is 54 kV.
Per the data I have at hand, an ABB EXLIM-P arrester rated 54 kV has a switching surge rating 103 kV based on a time to crest of 45 to 60 microseconds.
Hope that helps.
For a **solidly-grounded** 69 kV system, the Maximum continuous operating voltage of the arrester should be at least 42 kV. With a 42 kV MCOV, the arrester voltage rating is 54 kV.
Per the data I have at hand, an ABB EXLIM-P arrester rated 54 kV has a switching surge rating 103 kV based on a time to crest of 45 to 60 microseconds.
Hope that helps.
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