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Method for adapting a protective relay to the mains frequency, and a protective relay
Method for adapting a protective relay to the mains frequency, and a protective relay
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机译:使保护继电器适应市电频率的方法和保护继电器
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摘要
The invention relates to a method for adapting a protective relay (7) to the mains frequency and a protective relay, the method comprising the steps of determining the mains frequency, and sampling a measured variable of mains frequency in order to provide physical samples. The method further comprises the steps of re-sampling the measured variable, by means of software, on the basis of the physical samples and the determined mains frequency in order to provide virtual samples and performing the further processing of the measured variable on the basis of the virtual samples.
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