Advertisement
Truly Designed for
Total Harmonic Distortion (THD) can be caused by multiple factors including: computers,
fluorescent lights, copiers, and six-pulse drives. With Toshiba's patented 18-Pulse
Autotransformer design, the QX7 removes distortion that would normally be generated by
a six-pulse drive.
•
Meets IEEE-519 Guidelines without Adding Filters
•
Produces a Ripple-Free Voltage on DC Bus
•
Clean Sinusoidal Input Current Waveform
•
Up to 60% Reduction in Transformer Losses
INPUT CURRENT HARMONICS
INPUT CURRENT HARMONICS
100
90
80
70
60
50
40
% OF FUNDAMENTAL
30
20
10
0
5
7
11
13
17
19
Small Footprint
The high cost of real estate and constraints
of existing facilities make size an important
consideration in drive selection.
•
100" Height and 24" Depth on All Sizes
•
Integrated Phase-Shifting Autotransformer
•
Saves Real Estate on New Designs
•
Easy Replacement for Older Drives in
Existing Facilities
(Addition of a bypass option will increase enclosure size.)
6-Pulse (Typical)
23
25
29
31
35
37
41
HARMONIC NUMBER
Current
Voltage
18-Pulse HX7
Ch1
500mV
43
47
49
e: 60 Hz
@
: 113 Hz
5.00mVΩ
Ch2
M2.00ms
Ch1
10mV
Advertisement
