Abstract
Design of the high-power DC supply quite logically based on the required electrical parameters and expected or defined operating conditions. A prerequisite trouble-free operation is also the correct choice of construction materials. Both in terms of mechanical strength and stability, and in terms of thermal load. The article deals with thermal conditions in the high-power DC supply with the transformer of ripple filter for long-term current overload.
Highlights
High-power DC supplies for industrial purposes are designed completely differently from conventional commercial devices
Tree-phase high-power DC supplies with the transformer of ripple filter for industrial purposes [4]-[6] designed for heavy-duty applications
Operational testing of a prototype high-power DC supplies with the ripple filter transformer of 14V/140A (Fig. 1) implemented by our proposal [5] include, among other things, test the temperature rise during overload
Summary
High-power DC supplies for industrial purposes are designed completely differently from conventional commercial devices. For industrial devices usually do not mind larger size or heavier. The primary requirement is virtually maintenance free operation and operational reliability. A ommon requirement is too high short or long term overload. Short time overload DC supplies depend primarily on the data of the rectifier elements. Long-term overload is further more dependent on the thermal resistance of materials used in the construction of source solution a thermal bridge and cooling space of the individual components and the entire DC supply. Used model solution based is on theoretical knowledge of key publications [1]-[3] and the results of long-term practical tests
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