Siemens SICAM 7KG85X - Waveform Records; Function Description

Waveform Records
Function Description
When a trigger function is activated, a waveform recorder records the following values:
•
Voltages
•
Currents
The following table shows all trigger sources of the waveform recorder, as well as the corresponding measure-
ment time base and trigger conditions.
Table 6-14 Triggers of the Waveform Recorder
Trigger Source Measurement Time
Base
Trigger Conditions
Voltage trigger 1/2 cycle The trigger starts if one of the following conditions is
met:
•
The measured value > the upper threshold
•
The measured value < the lower threshold
•
A voltage event occurs.
Current trigger 1/2 cycle The trigger starts if one of the following conditions is
met:
•
The measured value > the upper threshold
•
The measured value < the lower threshold
You can parameterize the trigger sources and switch them on/off separately. If the trigger is switched off,
recording cannot be initiated.
Finishing of the waveform recording depends on the configured recording duration. The waveform record is
written to the SD card for subsequent evaluation.
The nominal sampling rate for the waveform recorder is 10 240 samples per second, that is 204 samples per
cycle for the 50-Hz system.
6.5
6.5.1
Power Quality
6.5 Waveform Records
134 SICAM, SICAM P850/P855 7KG85X, Manual
E50417-H1040-C482-A9, Edition 03.2022