Rockwell Automation 7000A PowerFlex Medium Voltage Drive (A-Frame) - Classic Control - Manual (Page 24)

1-6 Overview of Drive
7000A-UM150F-EN-P – June 2013 7000 “A” Frame
Figure 1.4 – PWM rectifier (active front-end) and its input current/voltage waveforms
a) Line current
b) Line-to-line voltage at PCC
The PWM rectifier can be used in conjunction with a rectifier duty
isolation transformer or with an AC line reactor (as shown in
Figure 1.4).
Isolation transformers are available:
1) Integral to the Drive
2) Remote indoor dry type, or
3) Outdoor oil-filled type
This allows for maximum flexibility in dealing with floor space,
installation cost and control room air conditioner loading.
a)
b)