Heat Exchanger Modules - Siemens SINAMICS S120 Manual

System overview

2.7 Heat Exchanger Modules

2.7 Heat Exchanger Modules
Heat Exchanger Modules are used to dissipate the power loss from the converter. They
comprise a deionized water circuit on the converter side and a raw water circuit on the
plant/system side.
The warm liquid (water and antifreeze and/or inhibitors) in the deionized water circuit of the
converter is pumped to the water/water plate-type heat exchanger using circulating pumps (2
pumps for option W01). The heat exchanger is manufactured out of stainless steel and is
connected to the plant-side raw water circuit.
The liquid in the deionized water circuit on the converter side is cooled by the raw water of
the plant-side cooling system and then flows back to the converter.
Protection against condensation is implemented using a 3-way valve of the internal
deionized water circuit and the intake temperature.
Heat Exchanger Modules are available for the following voltages and cooling power ratings:
Line voltage
3 AC 380 ... 415 V
3 AC 500 ... 690 V
Note
Voltage adaptation for the pump
For Heat Exchanger Modules for line voltages of 3 AC 500 ... 690 V, the voltage is adapted
to the 3 AC 400 V supply voltage of the pump using a transformer.
30
Cooling power
32 ... 120 kW
32 ... 120 kW
Cabinet Modules liquid cooled
Equipment Manual, 04/2020, A5E37067587A