Delta M50A-260 - Page 34

5 Planning the installation
Characteristic curves
34
Installation and Operation Manual M50A_260 RPI503M260000 Product version L and M EU V1.3 EN 2023-08-14
S/S
n
(S
n
= 50 kVA)
30
0
10 20
40 50 60
50 %
60 %
70 %
80 %
90 %
100%
110%
460V
520V
600V
720V
800V
900V
U
AC
= 230 / 400 V
AC
cos ϕ = 0,9
Ambient temperature [°C]
Fig. 5.9: Characteristic curve “Apparent power control depending on the ambient temperature, cos φ = 0.90, AC voltage 230/400 V”
0% 20% 40% 100%80%60%
88%
90%
92%
94%
96%
98%
100%
390V
600V
800V
P
n
= 50 kW
AC Output power P/P
n
[%]
Efficiency [%]
Fig. 5.10: Eciency characteristic curve; AC voltage = 400 V
AC