7
Harmonics Recording Function
Power Quality Sensor Function
Power Quality Data Logging Function
Flicker Recording Function
Sags and Swells - Power Quality
Sensor
The power quality recording is equipped with a software power
quality sensor that automatically detects voltage sags (dips) and
swells. Each incident that is detected and characterised, in
compliance with IEC 61000-4-30 and the duration and
magnitude of each is stored in the recorder memory.
The last 1000 incidents are retained in memory and can be
retrieved for display and analysis by Replay
™
Plus Master Station
software.
Power Quality Data Logging
The data logging function also provides the ability to record
calculated quantities such as rms voltage and current, real and
reactive power, sequence components and frequency at sample
intervals of 10 seconds or 10 minutes. In addition to recording
the sample value at the selected rate the maximum and
minimum values over the sample interval can also be recorded.
Up to 60 days of data can be recorded at the 10s sample interval
and in excess of one year's worth of data can be recorded at a
sample interval of 10 minutes.
Flicker Recording Function
Flicker recording in compliance with the IEC 61000-4-15
standard is also provided with Pst and Plt values being provided.
Flicker is calculated on a group of three phase voltage inputs
and the resulting data is stored in recorder memory. Up to 512
days of flicker data can be stored in the recorder memory where
it can be retrieved using Replay
™
Plus Master Station software.
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