Sel 411L - Page 1005

P.17.3
Date Code 20151029 Protection Manual SEL-411L Relay
Analog Quantities
Quantities Listed Alphabetically
87APG Angle of the equivalent Alpha Plane, zero-sequence Degrees [°] (±180°)
87APQ Angle of the equivalent Alpha Plane, negative-sequence Degrees [°] (±180°)
87CH1AX Measured absolute value of the channel asymmetry for Channel 1 (serial only) Milliseconds [ms]
87CH1LD Number of lost 87L communication packets for the last 24 hours for Channel 1 NA
87CH1LX Number of lost packets among the 10,000 scheduled packets for Channel 1 NA
87CH1RT Measured round trip delay of Channel 1 (serial only) Milliseconds [ms]
87CH2AX Measured absolute value of the channel asymmetry for Channel 2 (serial only) Milliseconds [ms]
87CH2LD Number of lost 87L communication packets for the last 24 hours for Channel 2 NA
87CH2LX Number of lost packets among the 10,000 scheduled packets for Channel 2 NA
87CH2RT Measured round trip delay of Channel 2 (serial only) Milliseconds [ms]
87CH3LD Number of lost 87L communication packets for the last 24 hours for Channel 3 NA
87CH3LX Number of lost packets among the 10,000 scheduled packets for Channel 3 NA
87HRAA,
87HRAB, 87HRAC
Angle of the equivalent harmonic-restrained Alpha Plane, A-phase, B-phase,
C-phase
Degrees [°] (±180°)
87I1FM Positive-sequence differential current magnitude Per unit [pu]
87I1LA 10-cycle averaged, aligned local positive-sequence current angle Degrees [°] (±180°)
87I1LM 10-cycle averaged, aligned local positive-sequence current magnitude Per unit [pu]
87I1R1A 10-cycle averaged, aligned remote Terminal 1 positive-sequence current angle Degrees [°] (±180°)
87I1R1M 10-cycle averaged, aligned remote Terminal 1 positive-sequence current
magnitude
Per unit [pu]
87I1R2A 10-cycle averaged, aligned remote Terminal 2 positive-sequence current angle Degrees [°] (±180°)
87I1R2M 10-cycle averaged, aligned remote Terminal 2 positive-sequence current magnitude Per unit [pu]
87I1R3A 10-cycle averaged, aligned remote Terminal 3 positive-sequence current angle Degrees [°] (±180°)
87I1R3M 10-cycle averaged, aligned remote Terminal 3 positive-sequence current magnitude Per unit [pu]
87IA2M 2nd harmonic magnitude of the differential current, A-phase Per unit [pu]
87IA4M 4th harmonic magnitude of the differential current, A-phase Per unit [pu]
87IA5M 5th harmonic magnitude of the differential current, A-phase Per unit [pu]
87IADA 10-cycle averaged, differential current, A-phase angle Degrees [°] (±180°)
87IADM 10-cycle averaged, differential current, A-phase magnitude Per unit [pu]
87IAFM Differential current magnitude, full-cycle cosine filtered, A-phase Per unit [pu]
87IALA 10-cycle averaged, aligned local current, A-phase angle Degrees [°] (±180°)
87IALM 10-cycle averaged, aligned local current, A-phase magnitude Per unit [pu]
87IAR1A 10-cycle averaged, aligned Remote 1 current, A-phase angle Degrees [°] (±180°)
87IAR1M 10-cycle averaged, aligned Remote 1 current, A-phase magnitude Per unit [pu]
87IAR2A 10-cycle averaged, aligned Remote 2 current, A-phase angle Degrees [°] (±180°)
87IAR2M 10-cycle averaged, aligned Remote 2 current, A-phase magnitude Per unit [pu]
87IAR3A 10-cycle averaged, aligned Remote 3 current, A-phase angle Degrees [°] (±180°)
87IAR3M 10-cycle averaged, aligned Remote 3 current, A-phase magnitude Per unit [pu]
87IARTM Restraining current magnitude in A-phase Per unit [pu]
87IB2M 2nd harmonic magnitude of the differential current, B phase Per unit [pu]
87IB4M 4th harmonic magnitude of the differential current, B phase Per unit [pu]
87IB5M 5th harmonic magnitude of the differential current, B phase Per unit [pu]
Table 17.1 Alphabetical List of Analog Quantities (Sheet 3 of 19)
Analog Quantities Phase, Phase-to-Phase and Sequence Quantities Units