Appendix F - Event Classification - Dranetz PowerGuide 4400 User Manual

Range of
Variations as per
IEEE, IEC, and
Dranetz
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A P P E N D I X
Event Classification
Events characterization implemented in the 4400 adheres to the IEEE 1159 and IEC
61000-4-30 Class A measurement standards. The range of variations as per IEEE and
IEC standards are featured below, along with quality test measurements developed by
Dranetz.
IEEE 1159
Short Duration Variations
Magnitudes
Sag/Dip (Sag) Vrms Below 90%
(or Low limit) to 10% of
nominal
Swell Vrms Above 110% (or
High limit) to 180% of
nominal
Interruption Vrms Below 10% (or
Very Low limit) of
nominal
Temporal
Instantaneous 0.5 - 30 cycles
Momentary 0.5 - 30 seconds
Temporary 3 - 60 seconds
Duration begins when any one
phase is Out of Limits;
ends when all phases are
Within Limits
Long Duration Variations
Magnitudes
Sag same magnitude values
Swell as Short Duration
Interruption Variations (see above)
Duration
Sustained > 1 minute
Cold Load
Pickup is return
from sustained
www.
F
IEC 61000-4-30
(deviations from IEEE
1159 only are noted)
(Dip) Vrms Below 90%
(or Low limit) of
nominal
Vrms Above 110% (or
High limit) of nominal
Vrms Below 1% (or
Very Low limit) of
nominal
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Dranetz
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