Siemens SINAMICS G130 Engineering Manual page 465
Sinamics - low voltage
sinamics drives
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Also See for SINAMICS G130:
- List manual (1976 pages) ,
- Operating instructions manual (610 pages) ,
- Engineering manual (396 pages)
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SINAMICS S120 Cabinet Modules
Engineering Information
7. Calculating the power loss that can be transferred from the deionized water circuit to the raw water circuit
With the maximum raw water inflow temperature of 30 °C specified for this example, the power loss (cooling capacity)
P
that can be transferred from the deionized water circuit to the raw water circuit can be calculated from the
L deion raw
rated cooling capacity P
of the Heat Exchanger Module selected above and from the inflow temperature in the
HEM rated
deionized water circuit T
and the inflow temperature in the raw water circuit T
as follows:
in deion
in raw
P
= P
• (T
– T
) / 7 °C = 72 kW • (40 °C – 30 °C) / 7 °C = 103 kW.
L deion raw
HEM rated
in deion
in raw
The 103 kW power loss that can be transferred to the raw water circuit is significantly higher than the 58.2 kW total
power loss of the drive line-up calculated above. The total power loss can therefore be dissipated without any
difficulties.
SINAMICS Engineering Manual – November 2015
465/528
Ó Siemens AG
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