Sel 421 - Figure 3.24 Sample Harmonic Analysis Event Waveform Screen

U.3.19
Date Code 20090715 User’s Guide SEL-421 Relay
PC Software
Analyze Events
ACSELERATOR QuickSet also presents a harmonic analysis of power system
data for raw data binary COMTRADE event captures.
Step 1. From the Event Waveform View menu, click Harmonic
Analysis.
A window similar to Figure 3.24 appears.
Figure 3.24 Sample Harmonic Analysis Event Waveform Screen
Step 2. On the left side of the Harmonic Analysis screen, choose the
relay voltage and current channels to monitor for harmonic
content.
You can view both a spectral analysis plot and a harmonic
analysis bar chart.
Step 3. Click the arrows of the Data Scroll box or the # Cycles box to
change the data analysis range.
Step 4. Click Summary Data on the Event Waveform View menu to
see event summary information and to confirm that you are
viewing the correct event.
Figure 3.25 shows a sample
ACSELERATOR QuickSet Event
Report Summary screen.
Courtesy of NationalSwitchgear.com