
CTS Series - IEC 61000-3-3 Flicker Test
Simple User Interface
The Flicker test software module uses a similar user inter-
face as the Harmonics module. This makes it instantly fa-
miliar to the user. Setup is minimal and test runs can be
started quickly. During the test run, graphical displays of
V
RMS
, d
c
and d
t
as a function of time are updated continu-
ously. The bottom part of the display shows Flicker test
related parameters for the EUT such as V
RMS
, d
max
, d
c
and
d
t
. At the end of the test sequence, short term (P
st
) and long
term Flicker (P
lt
) are calculated and a clear PASS or FAIL
indication is provided.
IEC 725 Reference Impedance
The reference impedance required to perform flicker mea-
surements per IEC 725 is built-in to the PACS-1RP unit for
the 1251RP-CTS system or the PACS-1RP2 for the
2001RP-CTS system. All iX Series based CTS configura-
tions use the programmable output impedance of the AC
Source to provide the required output impedance. Users
that prefer to use a lumped reference impedance can order
option -LR1 for single phase iX-Series based CTS systems
or option -LR3 or -LR4 for three phase systems.
Available Data Displays
The following graphics displays are provided in the IEC
61000-3-3 test program:
• Chart of d
c
and d
t
versus time
• Chart of V
RMS
versus time
• Color PASS/FAIL indicator
• Numeric display of V
RMS
, d
max
, d
c
,
P
st
, and P
lt
• Numeric display of maximum d
c
, d
max
, d
t
, P
st
and P
lt
Test Reports and Data Logging
A summary IEC 61000-3-3 Flicker test report can be printed
at the end of the test which includes all test results for the
EUT. Refer to the section on IEC 61000-3-2 for report de-
tails and capabilities. A test file replay mode is supported
by the CTS system software that allows frame by frame
playback of test data files for detailed analysis of EUT be-
havior.
Start and Stop Flicker
tests with the click of
a button.
Start time, current
time and stop time
monitoring.
Highest values found
during test are con-
tinuously shown and
updated.
Clear Pass (Green) or
Fail (Red) indication
leaves no doubt about
the test result.
User selectable test
time.
Select test parameters
and data display op-
tions.
IEC Test limits can be
changed for pre-compli-
ance applications.
Real time display of d
t
,
d
c
and V
rms.
Continuous readouts of
V
rms
, d
max
, d
c
, Plt and Pst
provide test progress
feedback.
Equipment Under Test
description and operator
ID are added to all test
reports.
Real-time display of instantaneous Pst
IEC Flicker Test Window
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