GE MiCOM P40 Agile Technical Manual page 221

P14D Chapter 10 - Voltage Protection Functions
The function also produces three-phase Start and Trip signals, which can be set to Any Phase (where any of the
phases can trigger the start) or Three Phase (where all three phases are required to trigger the start). The
averaging buffer is reset either when the stage is disabled or no frequency is found (Freq Not Found DDB signal).
P14D-TM-EN-8 195