4 Measurands and Recording
4.1 Measuring and Recording System
35SENTRON PAC5100/5200, 7KM5212/5412, Device Manual
E50417-H1040-C568-A1, Edition 03.2015
4.1.2.4 Event Recorder
The Event Recorder exclusively records PQ events (undervoltage, overvoltage, voltage interruptions). The use
nominal voltage is the reference value for the analysis.
Figure 4-6 Recording of the Event Recorder, Overvoltage and Undervoltage
Voltage Event
• Dip threshold: 75 % to 95 % (default 90 %)
• Swell threshold: 105 % to 140 % (default 110 %)
• Voltage interruption threshold: 1 % to 10 % (default 5 %)
• Event hysteresis: 1 % to 6 % (default 2 %)
Frequency Event
• Underfrequency threshold: 0.1 % to 5 % (default 1 %)
• Overfrequency threshold: 0.1 % to 5 % (default 1 %)
Voltage Unbalance Event
• Voltage unbalance threshold: 1 % to 5 % (default 5 %)
100
V
rated
[%]
t
108
92
110
90
Voltage dip
Voltage swell
Event
star t
Event
star t
Event
stop
Event
stop
t
Duration of
event
Hysteresis
(2 %)
Hysteresis
(2%)
Duration of
event
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