GE PowerVac GEK-86132F Instruction Manual page 39

Vacuum circuit breaker with ml-18 or ml-18h mechanism

ADDITIONAL INFORMATION REQUIRED FOR ANALYSIS OF MAJOR OR

(1)

Single line station diagram showing involved breakers

(2)

Operation and timing sequence (including all alarms) of this and related breakers

from 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 all

interrupter 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 products relative to valve seals, (photograph each in detail before

any clean up or post failure mechanism movement, supply copies of photos with report.)

SYSTEM RELATED FAILURE

(USE ADDITIONAL PAGES AS NECESSARY)

(This form may be copied)

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