Arc Chute With Splitter Plates Interconnected By Resistors
AssigneeABB Schweiz AG
InventorsZichi Zhang, Stefan Valdemarsson
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AssigneeABB Schweiz AG
InventorsZichi Zhang, Stefan Valdemarsson
Estimating the term…
A switchgear includes a circuit breaking section having a moveable contact bridging element and at least one first arc chutes adjacent the contact bridging element, each arc chute including a base plate for connecting to the contact bridging element and a group of splitter plates placed adjacent the base plate, where the splitter plates of the groups are separated from the base plate and each other via air gaps and resistors interconnect at least some of the plates in at least a first of the arc chutes for bypassing corresponding air gaps, wherein the resistors have values in the range 5 kΩ-1 MΩ, current ratings below 100 mA and power ratings below 1 W.
A switchgear (10) comprising a circuit breaking section having a movable contact bridging element and at least one first arc chute adjacent the contact bridging element, each arc chute including a base plate for connecting to the contact bridging element placed adjacent the base plate, where the splitter plates of the groups are separated from the base plate and each other via air gaps and resistors interconnect at least some of the plates in at least a first of the arc chutes for bypassing corresponding air gaps, wherein all the plates in the first arc chute except for an uppermost splitter plate are interconnected by resistors, which resistors have values in the range 5 kΩ-1 MΩ, current ratings below 100 mA and power ratings below 1 W.
Dependencies are inferred from the claim text.