Gossen Metrawatt M817S Mains-analysis device, Mains analyser M817S Hoja De Datos

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Event Classification
Range of 
Variations per 
IEEE standard
Events characterization implemented in the Energy Platform adheres to the IEEE 1159 
measurement standards. The range of variations as per IEEE standards are featured 
below.
 IEEE 
1159
Short Duration Variations
 
Magnitudes
Sag/Dip
Swell
Interruption
Temporal
Instantaneous
Momentary
Temporary 
Duration
(Sag) Vrms Below 90% (or Low limit) to 10% of nominal
Vrms Above 110% (or High limit) to 180% of nominal
Vrms Below 10% (or Very Low limit) of nominal
0.5 - 30 cycles
0.5 - 30 seconds
3 - 60 seconds
begins when any one phase is Out of Limits; ends when all 
phases are Within Limits
Long Duration Variations
 
Magnitudes
Sag 
Swell
Interruption
Duration
Sustained
Cold Load Pickup is 
return from sustained
same magnitude values as Short Duration Variations (see above)
> 1 minute