This is particularly true of generator differential relaying, since an asymmetrical fault near the terminals ... even for as short a time as one cycle with a high-speed relay, the relay problem ...

Loss of excitation (LOE) protection ... generator's response to LOE events. The method has shown improved reliability and ease of implementation compared to traditional impedance-based relays ...

Split‐phase protection unique to hydraulic generators only detects inter‐turn faults on the same phase winding. Loss of excitation is detected by a specially designed mho relay measuring voltage and ...