P.17.30
SEL-411L Relay Protection Manual Date Code 20151029
Analog Quantities
Quantities Listed by Function
I1XPMRD Positive-sequence synchrophasor current real component, Terminal X,
delayed for RTC alignment
Amperes [A] (primary)
I1SPMRD Positive-sequence synchrophasor current real component, Terminal S,
delayed for RTC alignment
Amperes [A] (primary)
I1WPMID Positive-sequence synchrophasor current imaginary component,
Terminal W, delayed for RTC alignment
Amperes [A] (primary)
I1XPMID Positive-sequence synchrophasor current imaginary component,
Terminal X, delayed for RTC alignment
Amperes [A] (primary)
I1SPMID Positive-sequence synchrophasor current imaginary component,
Terminal S, delayed for RTC alignment
Amperes [A] (primary)
SODPMD Second of day of the synchrophasor data packet, delayed for RTC
alignment
Seconds [s]
FOSPMD Fraction of Second of the synchrophasor data packet, delayed for RTC
alignment
Seconds [s]
FREQPMD Frequency for synchrophasor data, delayed for RTC alignment Hertz [Hz]
DFDTPMD Rate-of-change of frequency for synchrophasor data, delayed for RTC
alignment
Hertz/seconds [Hz/s]
RTCAP01–RTCAP32 Channel A remote synchrophasor phasors (units depends on remote
synchrophasor contents)
NA
RTCBP01–RTCBP32 Channel B remote synchrophasor phasors (units depends on remote
synchrophasor contents)
NA
RTCAA01–RTCAA08 Channel A remote synchrophasor analogs (units depends on remote
synchrophasor contents)
NA
RTCBA01–RTCBA08 Channel B remote synchrophasor analogs (units depends on remote
synchrophasor contents)
NA
RTCFA Channel A remote frequency (from remote synchrophasors) Hertz [Hz]
RTCFB Channel B remote frequency (from remote synchrophasors) Hertz [Hz]
RTCDFA Rate-of-change of Channel A remote frequency (from remote
synchrophasors)
Hertz/seconds [Hz/s]
RTCDFB Rate-of-change of Channel B remote frequency (from remote
synchrophasors)
Hertz/seconds [Hz/s]
Protection Frequency
FREQ Tracking frequency Hertz [Hz]
FREQP Frequency for under/overfrequency elements Hertz [Hz]
Remote Analogs
RA001–RA256 Remote analogs N/A
RAO01–RAO64 Remote analog output N/A
Out-of-Step
SCV Unfiltered swing center voltage Per unit [pu]
Relay Temperature
RLYTEMP Relay temperature (temperature of the enclosure) °C (degrees Celsius)
87 Line Current Analog Quantities
87IAFM, 87IBFM,
87ICFM
Differential current magnitude, full-cycle cosine filtered, A-phase, B-
phase, C-phase
Per unit [pu]
87I1FM Positive-sequence differential current magnitude Per unit [pu]
87IGFM Zero-sequence differential current (3I0) magnitude, full-cycle cosine
filtered
Per unit [pu]
Table 17.2 Analog Quantities List By Function (Sheet 12 of 15)
Analog Quantities Analog Quantity Description Units
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