Arc interrupter
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United States of America Patent
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-
Jun 21, 1988
Grant Date -
N/A
app pub date -
Feb 27, 1987
filing date -
Mar 25, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
The rating of an arc interrupter is improved by having a movable contact assembly, which is engageable with and completely disengageable from a fixed contact in make and break positions, respectively, consisting of two main current carrying members the first of which is the last part of the assembly to disengage from the fixed contact during an opening operation. The delay in disengaging the first contact member from the fixed contact can be achieved in several ways. For example, the geometry of the first contact member can be different from the geometry of the second contact member (by the provision of an arcing tip); by the provision of a lost-motion mechanism; or by the provision of an auxiliary contact.
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