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What is Double Ground Fault Protection Overview about?

This document provides an example application and instructions for implementing double ground fault protection for an electrical distribution plant. It involves connecting a homopolar toroid to the transformer star center and earth. It also requires setting a signaling module on the incoming LV circuit breaker to provide a contact to command opening the MV circuit breaker when ground faults are detected. Diagrams show the available contacts on different signaling unit modules.

Author

sang

Language

EN