CAUSES
Lightning, ESD, switching impulses, utility fault clearing.
EFFECTS
Loss of data, possible damage, system halts.
CAUSES
Switching, utility faults, circuit breaker tripping, component failures.
EFFECTS
Loss of data, forced shutdown.
CAUSES
Startup loads, faults, utility faults, load changes.
EFFECTS
System halts/shutdown, loss of data.
CAUSES
Load changes, utility faults.
EFFECTS
Nuisance tripping, equipment damage/reduced life.
CAUSES
Faulty rectifiers, power supplies, electronic loads (non-linear loads).
EFFECTS
DC offset: transformers heated, ground fault current, nuisance tripping.
Harmonics: transformers heated, the system halts.
Interharmonics: light flicker, heating, communication interference.
Notching: system halts, data loss.
Noise: system halts, data loss.
CAUSES
Transmitters (radio), faulty equipment, ineffective grounding, proximity to EMI/RFI source.
EFFECTS
System halts, data loss.
CAUSES
Intermittent operation of load equipment.
EFFECTS
System halts, light flicker.