4. Electricity: measuring and testing
  5. Measuring, testing, or sensing electricity, per se
  6. Frequency of cyclic current or voltage

Colin A. A. MacPhee

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Detection of ground faults in ungrounded DC power supply systems

Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent

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Ground leakage current protection system

Electricity: electrical systems and devices – Safety and protection of systems and devices – Ground fault protection
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Profile ID: LFUS-PAI-P-1863697

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