Download yaskawa comparison

A Competitive Contrast Report of Yaskawa E7, ABB ACH400,
Cutler-Hammer HV9000, Danfoss VLT6000
The chart below shows how using different hardware components affect power line total harmonic distortion.
This chart remains essentially the same for all drives possessing an AC to DC diode bridge rectifier.
E7 drives greater than 30 HP contain a 12-pulse diode bridge.
T o t a l H a r m o n Ti co tDai ls H
t oarrtm
i oonn iacs Da i sp teor rctei n
o tn oafs Baa s e l i n e D i s t o r t i o n
Total Percent of Baseline
100
1
80
60
40
20
0
B a s eB
l ia
ne
Countermeasure
Harmonic THD as
% of Baseline THD
True PF (VA / W)
33%%I nIpnupt u
Reactor
BaseLine 3% Input Reactor
100% Load
100% Load
100
46.3
0.63
t
DD
CDCC
H a r Rme ao cnt iocr
DC Reactor
100% Load
41.6
DDCCDRRCee aaLccittnoorkr +
Line Reactor
DC Reactor + Input Reactor
100% Load
36.6
0.9
0.85
0.91
Countermeasure for 25/30 Hp @ 460 VAC
D
D CC1 R2 e a c t o r +
12 Pulse
DC Reactor + 12 Pulse
100% Load
9.86
0.95
6 Pulse
12 Pulse
CONFIDENTIAL
Document Number: CC.E7.20
Page 35 of 53