Derating Data; Derating Factors As A Function Of Coolant Temperature - Siemens SINAMICS S120 Manual

2.10

Derating data

2.10.1

Derating factors as a function of coolant temperature

The SINAMICS S120 liquid -cooled devices are suitable for H
antifreeze as coolant, corresponding to Section Antifreeze + biocide (Page 118).
When using H
side, the units can supply 100 % output current in the temperature range between 5 °C and
45 °C (<IP55) or 5 °C and 40 °C (IP55); in the temperature range between 45 °C and 50 °C
(<IP55) or 40 °C and 45 °C (IP55), the maximum output current linearly decreases to 90 %.
When using the above specified mixture comprising H
100 % output current in the temperature range between 0 °C and 45 °C (<IP55) or 0 °C and
40 °C (IP55); in the temperature range between 45 °C and 50 °C (<IP55) or 40 °C and 45 °C
(IP55) the maximum output current linearly decreases to 90 %.
When using H
can supply 100 % output current in the temperature range between 5 °C and 38 °C (<IP55)
or 5 °C and 33 °C (IP55); in the temperature range between 38 °C and 43 °C (<IP55) or
33 °C and 38 °C (IP55), the maximum output current linearly decreases to 90 %.
When using the above specified mixture comprising H
100 % output current in the temperature range between 0 °C and 38 °C (<IP55) or 0 °C and
33 °C (IP55); in the temperature range between 38 °C and 43 °C (<IP55) or 33 °C and 38 °C
(IP55) the maximum output current linearly decreases to 90 %.
Figure 2-6
Cabinet Modules liquid cooled
Manual, 10/2015, A5E37067587A
O with inhibitor as coolant for the deionized water circuit on the converter
2
O with inhibitor as coolant for the raw water circuit on the plant side, the units
2
Maximum output current as a function of coolant temperature of the deionized water
circuit on the converter side
System overview
2.10 Derating data
O or a mixture of H
2
O and antifreeze, the units can supply
2
O and antifreeze, the units can supply
2
O and an
2
37