Table 71:OOSPPAM (78) Output signalsName Type DescriptionTRIP BOOLEAN Common trip, issued when either zone 1 or zone 2 tripTRIPZ1 BOOLEAN Zone 1 tripTRIPZ2 BOOLEAN Zone 2 tripSTART BOOLEAN Set when measured impedance enters lenscharacteristicGENMODE BOOLEAN Generator rotates faster than the system during pole slipMOTMODE BOOLEAN Generator rotates slower than the system during poleslipR REAL Real part of measured positive-sequence impedance %of VBase/(sqrt(3)*IBase)X REAL Imaginary part of measured positive-seq impedance %of VBase/(sqrt(3)*IBase)7.4.5 SettingsTable 72:OOSPPAM (78) Group settings (basic)Name Values (Range) Unit Step Default DescriptionOperation DisabledEnabled- - Disabled Operation Enable/DisableOperationZ1 DisabledEnabled- - Enabled Operation Zone1 Enable/disableReachZ1 1.00 - 100.00 - 0.01 50.00 Percentage part of total forward impedance;defines Z1 reachOperationZ2 DisabledEnabled- - Enabled Operation Zone2 Enable/disabletBreaker 0.000 - 1.000 s 0.001 0.040 Breaker opening time; use default 0s value if itis unknownTable 73:OOSPPAM (78) Group settings (advanced)Name Values (Range) Unit Step Default DescriptionNoOfSlipsZ1 1 - 20 - 1 1 Number of pole-slips in zone 1 required forzone 1 tripNoOfSlipsZ2 1 - 60 - 1 3 Number of pole-slips in zone 2 required forzone 2 triptReset 1.000 - 60.000 s 0.001 6.000 Time without any slip required to completelyreset function1MRK 502 048-UUS A Section 7Impedance protection175Technical manual
