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ADDITIONAL INFORMATION REQUIRED FOR ANALYSIS OF MAJOR OR
( 1 )
Single line station diagram showing involved reclosers
( 2 )
Operation and timing sequence (including all alarms) of this and related reclosers
f rom last time that conditions were definitely normal
( 3 )
Line conditions before, during, and after failure
( 4 )
Oscillograms - attach with explanation & interpretation
( 5 )
Attach a description of the exact position of all mechanical components from the control solenoid through
a l l i n t e rr upter contacts as applicable (photograph each in detail before mechanisms are moved, supply
copies of photos with report.)
( 6 )
Describe arc damage and location of arc p roducts relative to valve seals. (photograph each in detail
before any clean up or post failure mechanism movement, supply copies of photos with report.
Courtesy of NationalSwitchgear.com
SYSTEM RELATED FAILURE
(USE ADDITIONAL PAGES AS NECESSARY )
(This form may be copied)
67
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