Fehler
active fault
blemish
bug
defect
defects
deficiency
deviation
discontinuity
erratum
error
failing
failure
fault in electric power system
fault
faults
flaw
imperfection
incident
leakage
major defect
malfunction
mechanical fault
miss
mistake
non-conformance
nonconformity
outage
permanent fault
resistive fault
self-extinguishing current limit
trip
trouble
vitium
voltage instability