Rockwell Automation 20G PowerFlex 750-Series AC Drives - Manual (Page 184)

184 Rockwell Automation Publication 750-RM002B-EN-P - September 2013
Chapter 3 Diagnostics and Protection
Waveforms
The waveforms A, B, and C in the figure below describe the different mitigations
solutions shown on top of each other.
A - Unprotected motor
B - Line Reactor at the Drive
C - Terminator or RWR
Figure 20 - Waveform Comparison
Here are waveforms using a sine wave filter at 30 and 60 Hz. As you can see there
are no issues with reflected wave when using a sine wave filter.
Time (μs)
Li
ne
-L
ine
Mot
or
Vo
ltage
(V
PK
)