Danfoss iC7 Series Design Guide

7.16 Derating
7.16.1 Derating of Switching Frequency, INU
The inverter unit can be used without derating up to 3 kHz. For switching frequencies higher than 3 kHz, current must be derated
according to the diagram.
60
65
70
75
80
85
90
95
100
2
3 4 5 6 7 8 9 10
I/I
N
[%]
f [kHz]
e30bk458.10
Figure 92: Switching Frequency Derating
7.16.2 Derating of Coolant Temperature
The liquid-cooled system modules can be used without derating up to 38 °C (100 °F) or 45 °C (113 °F), depending on the current rating.
For higher coolant temperatures, current must be derated 1%/1 °C (1%/1.8 °F) as shown in the following diagram.
85
90
95
100
35
40 45
50 55 60 65 70
I/I
N
[%]
T [°C]
e30bk459.10
Figure 93: Coolant Temperature Derating
7.16.3 Derating of Voltage Imbalance, AFE/GC
AFE and grid converter units can be used without derating up to 3%. For voltage imbalances higher than 3%, current must be derated
according to the diagram.
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Design Guide | iC7 Series Liquid-cooled System Modules

Danfoss iC7 Series Specifications

General

Brand	Danfoss
Model	iC7 Series
Category	Media Converter
Language	English