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What is meant by "Momentary Current" ratings of a Medium voltage HVL switch?

Issue:
What is the momentary current rating  for our HVL switches?

Product Line:
MV switch

Environment:
HVL

Resolution:
The momentary current is the maximum current a CLOSED switch can withstand for 10 cycles and remain closed without damage to the switch/device. Transformer inrush currents are an example. Momentary currents are expressed in Asymmetrical amperes. 61kA & 80kA are HVL ratings.



 
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