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Showing 1 to 1 of 1 for “"Undervoltage element (27)"”.
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Switch-on-to-fault scheme for transmission line protection
… directional and nondirectional protection elements for a short window of time shortly after the transmission line breaker closes. When line potential transformers (PTs) are used to polarize directional distance relays, there is no benefit to using memory voltage during an SOTF condition and …