A method and a device for identifying, when a fault has been detected in a power network, single-phase to ground faults by determining for each phase an auxiliary current based on the present phase current, ground fault current and ground current.
By not having a transistor (214, 208, 206) directly connected to ground (210), ground current is avoided and crosstalk associated with ground current is eliminated.
A ground-current isolating circuit for providing a low voltage barrier between a service neutral conductor and an associated grounding system.
Requêtes fréquentes français :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
Requêtes fréquentes anglais :1-200, -1k, -2k, -3k, -4k, -5k, -7k, -10k, -20k, -40k, -100k, -200k, -500k, -1000k,
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