User Manual

Chapter 13 Option
13 - 57
13.2.2 Improvement of the derating
・Derating properties are improved by attaching optional FFM to an applicable model. Neither applicable
model needs the derating of the carrier frequency and the current derating at ambient temperature 50℃.
The detail refers to figure 5 ,6 and figure 7
13.2.3 Capacitor life improvement
・Bus capacitor life doubles approximately when I attach optional FFM to an applicable model.
The detail refers to figure 8
Figure 8.Carve of Bus Capacitor Life
2 4 6 8 10 12 16 140
4.0
Carrier frequency(kHz)
6.0
Figure5．Derating of NES1-015SB
8.0
Current(Ａ）
(If I use FFM,
use is possible at ambient temp 50℃)
Ambient Temp 40℃
Ambient Temp 50℃
Figure6．Derating of NES1-022SB
16 246810 12 14 0
4.0
6.0
9.0
10.0
Current(Ａ）
8.0
7.0
5.0
Ambient Temp50℃
Ambient Temp40℃
(If I use FFM,
use is possible at ambient temp 50℃)
Ambient Temp30℃
Carrier frequency(kHz)
Figure7．Derating of NES1-040HB
16 2 4 6 8 10 12 140
4.0
6.0
9.0
10.0
Current(Ａ）
8.0
7.0
5.0
Ambient Temp50℃
Ambient Temp40℃
(If I use FFM, use is possible
at ambient temp 50℃)
Carrier frequency(kHz)
When I attach FFM and use it, be usable if it
is terms and conditions of 12 hours electricity
/ day ,
80% of load factors even if ambient
temperature is high 10℃.
A
mbient Temp(℃)
10
20
30
40
50
1
Bus Capacitor Life (Year)
Be characteristic curves in case of 12 hours
electricity / day ,
80% of load.
When I attach FFM and use it, a resistance
electrify time becomes the condition of 24
hours electricity / day.
2 3 4 5 7 869
10
0