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How do you determine the number of operations of an HVL switch with reduced loads?

Refer to engineering bulletin PBD43113 for the calculations and formula. This formula is for the 600A HVL switch.
The system voltage does not change the formula because the arc voltage is not affected by the system voltage.
The arc voltage is approximately 1000V.
The 600A formula is N = 50 (600/I)

The 1200A formula is N = 20 (1200/I)

I is the reduced load current.


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