Siemens Aktiengesellschaft

Horst W Emshoff

Walter Kusebauch

Walter K/u/ Sebauch

A cooling arrangement particularly for cooling electrical devices having water cooled electric conductors with deionized cooling water in a closed cooling system which contains a parallel loop with a mixed bed filter in which an anion exchanger in OH form is provided which can be connected parallel with the mixed bed filter as well as in series with the mixed bed filter, permitting the cooling system to be run with the cooling water having an increased pH-value range which can be preferably 8 to 8.4.

Cooling arrangement and method of operating the arrangement

The invention relates to a cooling arrangement, particularly for cooling electrical devices with water-cooled electric conductors, with deionized cooling water (deionate) and a closed cooling system which contains a parallel loop with a mixed-bed filter. According to the invention, the mixed-bed filter is preceded by an alkalizing cation exchanger and an anion exchanger in OH-form, and the mixed-bed filter is provided with a bypass. With this arrangement, the cooling water can be run in a higher pH-value range which for generators may preferentially be about 8 to 8.4.

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Mulheim an der Ruhr, Germany

Horst W Emshoff