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3.9
AC Load Simulation -- Rectified Load Mode
The general AC products like UPS and AC SOURCE often use rectified load to test their
features as Figure 3-8 shows. Based on the load network, rectified load mode is designed into
three sub modes – RLC mode, CP mode and Inrush Current mode.
The operating frequency should be lower than 70Hz under Rectified Load
Mode.
Source
Zo
Vs
3.9.1 RLC Mode
For switching RLC mode, the procedures are as below:
1. Press RLC/DC RECT key to go into the Rectified Load Mode.
2. Press 1 , then press ENTER to enter RLC mode.
[ R E C T I F I E D
C H O O S E = 1
1 . R L C
M O D E
2 . C P
M O D E
3 . I N R U S H
Users are able to set the equivalent series resistance R
equivalent parallel load capacitance C, equivalent parallel load resistance R
parameters for loading when operating in this mode. The UUT I
before loading and the parameter range for setting is listed in the specifications.
Io
Vo
Figure 3-10 Schema of rectified load
L O A D ]
C U R R E N T
Rs
Ls
Rs
Ls
, equivalent series inductance L
s
L
(max) value needs to be set
p
Local Operation
C
R
L
C
R
L
,
s
and I
(max)
rms
3-29
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