Transformer through-fault current monitor

作者: Normann Fischer , Armando Guzman-Casillas

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摘要: A device is provided for monitoring through-fault current in an electric transformer on electrical power system. The generally includes a magnitude calculator calculating the of (e.g., root means square value or fundamental current) based through transformer. energy further which coupled to calculated An accumulator accumulating plurality values, and alarm indicating that accumulated values exceed selected threshold.