2.13.3.11 Technical Specifications Of The Transformers - Siemens SINAMICS S120 Equipment Manual

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2.13 Line connection variants

2.13.3.11 Technical specifications of the transformers

Basic reference conditions under which the transformers can be loaded with the rated power
P indicated in the selection tables:
n
● Continuous operation P
● Frequency 50 Hz to 60 Hz
● Degree of protection IP00
● Installation altitude up to 1000 m above sea level
● Rated ambient temperature t
Installation and operating conditions that deviate from these values, influence the
permissible continuous loads. For example, a lower ambient temperature of 30 °C enables a
higher utilization.
Figure 2-46
Figure 2-47
The mentioned transformers have a neutral point that can be loaded with 10 %. They are
mainly designed for secondary-side symmetrical supply systems.
126
n
a
Load characteristics in relation to the ambient temperature
Load characteristics in relation to the installation altitude
Equipment Manual, (GH2), 07/2007, 6SL3097-2AC00-0BP5
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