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The paper discusses the possibility of obtaining the required parameters of Rogowski coils when apply of printed circuit board high density technology. Selected results of investigations are presented and examples of Rogowski coils for use in electrical power system protections are given.
The paper presents the investigated results of performance of power transformers when used for converters supply of DC drive of hosting machines. Particular attention was paid on the power loss due to deformed current and voltage waveforms. The active and reactive power losses were compared for the newly employed transformer to this working more that 16 years. On the basis of the measurements the...
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