12.5
Date Code 20171021 Instruction Manual SEL-421 Relay
Analog Quantities
I1XPMA Positive-sequence synchrophasor current angle, Terminal X Degrees [°] (±180)
I1XPMAD Positive sequence synchrophasor current angle, Terminal X, delayed
for RTC alignment
Degrees [°] (±180)
I1XPMI Positive-sequence synchrophasor current imaginary component,
Terminal X
Amperes [A] (primary)
I1XPMID Positive sequence synchrophasor current imaginary component,
Terminal X, delayed for RTC alignment
Amperes [A] (primary)
I1XPMM Positive-sequence synchrophasor current magnitude, Terminal X Amperes [A] (primary)
I1XPMMD Positive sequence synchrophasor current magnitude, Terminal X,
delayed for RTC alignment
Amperes [A] (primary)
I1XPMR Positive-sequence synchrophasor current real component, Terminal X Amperes [A] (primary)
I1XPMRD Positive sequence synchrophasor current real component, Terminal X,
delayed for RTC alignment
Amperes [A] (primary)
IA1WFA Terminal W, positive-sequence filtered current, angle Degrees [°] (±180°)
IA1WFI Terminal W, positive-sequence filtered current, imaginary component Amperes [A] (secondary)
IA1WFM Terminal W, positive-sequence filtered current, magnitude Amperes [A] (secondary)
IA1WFR Terminal W, positive-sequence filtered current, real component Amperes [A] (secondary)
IA1XFA Terminal X, positive-sequence filtered current, angle Degrees [°] (±180°)
IA1XFI Terminal X, positive-sequence filtered current, imaginary component Amperes [A] (secondary)
IA1XFM Terminal X, positive-sequence filtered current, magnitude Amperes [A] (secondary)
IA1XFR Terminal X, positive-sequence filtered current, real component Amperes [A] (secondary)
IAD, IBD, ICD Demand phase current Amperes [A] (primary)
IAPKD, IBPKD, ICPKD Peak demand phase current Amperes [A] (primary)
IASPMA, IBSPMA,
ICSPMA
Synchrophasor current angle, Terminal S Degrees [°] (±180)
IASPMAD, IBSPMAD,
ICSPMAD
Synchrophasor current angle, Terminal S, delayed for RTC alignment Degrees [°] (±180)
IASPMI, IBSPMI,
ICSPMI
Synchrophasor current imaginary component, Terminal S Amperes [A] (primary)
IASPMID, IBSPMID,
ICSPMID
Synchrophasor current imaginary component, Terminal W, delayed for
RTC alignment
Amperes [A] (primary)
IASPMM, IBSPMM,
ICSPMM
Synchrophasor current magnitude, Terminal S Amperes [A] (primary)
IASPMMD, IBSPMMD,
ICSPMMD
Synchrophasor current magnitude, Terminal S, delayed for RTC
alignment
Amperes [A] (primary)
IASPMR, IBSPMR,
ICSPMR
Synchrophasor current real component, Terminal S Amperes [A] (primary)
IASPMRD, IBSPMRD,
ICSPMRD
Synchrophasor current real component, Terminal S, delayed for RTC
alignment
Amperes [A] (primary)
IAWFA A-Phase, Terminal W, filtered current, angle Degrees [°] (±180°)
IAWFI A-Phase Terminal W, filtered current, imaginary component Amperes [A] (secondary)
IAWFM A-Phase, Terminal W, filtered current, magnitude Amperes [A] (secondary)
IAWFR A-Phase Terminal W, filtered current, real component Amperes [A] (secondary)
IAWM, IBWM, ICWM Filtered instantaneous current magnitude, Terminal W Amperes [A] (secondary)
IAWPMA, IBWPMA,
ICWPMA
Synchrophasor current angle, Terminal W Degrees [°] (±180)
Table 12.1 Analog Quantities Sorted Alphabetically (Sheet 5 of 12)
Label Description Unit
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