Siemens simovert masterdrives Operating Instructions Manual page 288

Technical Data
Derating curves
Permissible rated current in %
100
75
50
25
0
0
Permissible rated output voltage in %
acc. to VDE 0110 / IEC 664-1
(not necessary acc. to UL / CSA)
100
75
50
0
Permissible rated current in %
100
75
50
25
0
0
Permissible rated current in %
100
90
80
70
60
0
11-2
2 1
2,5 5
Pulse frequency in kHz
1000 2000 3000
Installation altitude above sea level in m
10 20 30 40
Cooling-medium temperature in °C
1000 2000 3000
Installation altitude above sea level in m
Fig. 11-1 Derating curves
1
Derating curve 1
2
Derating curve 2
See Technical Data tables
<1>
The derating curve only applies to the following units :
- Sizes E to G with a rated input voltage
<2>
of 510 - 650 V only in the case of an actual input
voltage of 510 - 540 V
<1>
- Sizes J to L with a rated input voltage
of 675 - 810 V
<2>
The derating curve only applies to the following units:
- Sizes J to L with a rated input voltage
of 510 - 650 V
4000
Temp
[°C]
50
45
40
35
30
25
50
Altitude
[m]
1000
2000
3000
4000
4000
Operating Instructions
06.2006
Derating
factor K
2
0.76
0.879
1.0
1.125 *
* See
the
1.25 *
following
1.375 *
Note
Derating
factor K
1
1.0
0.9
0.845
0.8
6SE7087-6KN50 Siemens AG
SIMOVERT MASTERDRIVES