SMY133-SMY134-SMP133 Operating Manual
4.2.9 Power Quality & Voltage Events
This data group is available when appropriate firmware module is installed only.
On the first screen, there is “calendar” of power quality evaluation according the EN 50160 standard.
Each day is marked with either
or depending on that if power quality during the day was in
compliance with the standard or not.
Next, there is the table of voltage events (VE). The events are sorted according magnitude and
duration of each sag/swell/interruption and in the table you can check number of particular events
registered since last clear. You can clear the VE-table in the PQ-setup screen.
Detailed information of the PQ evaluation and the voltage events can be analyzed after downloaded
into the ENVIS program.
4.2.10 Ripple Control Signal
This data group is available when appropriate firmware module is installed only.
At the screen you can check live graph of ripple control signal (mains signalling, U
RC
) of chosen
frequency. At the example there is starting part of a telegram of frequency 183 Hz on the L1 phase
(U
RC1
).
With the
and
you can pass through all of phases measured. With the
and
you can toggle into the measured data table. There you can check :
•
the upper part : actual and average (3 second floating window) values of the U
RC1
, U
RC2
, U
RC3
ripple control signals
•
the bottom part : average, maximum and minimum voltage of detected pulses (= when signal
exceeds treshold U
RCSTR
) registered during the last telegram.
With the
and
you can scroll through all measured phases.
The
f
RC
frequency and the
U
RCTR
treshold voltage can be set in the RCS-setup screen.
18
Fig. 4.9 : Power Quality
Calendar
Fig. 4.10 : Voltage Events
Table
Fig. 4.11 : Ripple Control
Signal Graph
Fig. 4.12 : Ripple Control
Signal DataTable
