Sel SEL-421 - Page 668

R.B.14
SEL-421 Relay Reference Manual Date Code 20111215
Analog Quantities
Quantities Listed by Function
I1SPMMD Aligned synchrophasor positive-sequence current magnitude
(I_W + I_X terminals)
A
a
I1SPMAD Aligned synchrophasor positive-sequence current angle
(I_W + I_X terminals)
degrees
I1SPMRD Aligned synchrophasor positive-sequence current real component
(I_W + I_X terminals)
A
a
I1SPMID Aligned synchrophasor positive-sequence current imaginary component
(I_W + I_X terminals)
A
a
VALPMMD, VBLPMMD, VCLPMMD Aligned synchrophasor voltage magnitude kV
a
VALPMAD, VBLPMAD, VCLPMAD Aligned synchrophasor voltage angle degrees
VALPMRD, VBLPMRD, VCLPMRD Aligned synchrophasor voltage, real component kV
a
VALPMID, VBLPMID, VCLPMID Aligned synchrophasor voltage, imaginary component kV
a
V1LPMMD Aligned synchrophasor positive-sequence voltage magnitude kV
a
V1LPMAD Aligned synchrophasor positive-sequence voltage angle degrees
V1LPMRD Aligned synchrophasor positive-sequence voltage real component kV
a
V1LPMID Aligned synchrophasor positive-sequence voltage imaginary component kV
a
RTCFA RTC Remote Frequency, Channel A Hz
RTCDFA RTC Remote Frequency Rate of Change, Channel A Hz/s
RTCAP01–RTCAP32 RTC Remote Phasor Values, Channel A
RTCA01–RTCA08 RTC Remote Analog Values, Channel A
RTCFB RTC Remote Frequency, Channel B Hz
RTCDFB RTC Remote Frequency Rate of Change, Channel B Hz/s
RTCBP01–RTCBP32 RTC Remote Phasor Values, Channel B
RTCB01–RTCB08 RTC Remote Analog Values, Channel B
Control Inputs
IN101A–IN107A
f
Digital input values available as floating point quantities between 0 and
255. Multiply value by 1.023 to obtain volts.
A/D
counts
IN201A–IN208A
f
Digital input values available as floating point quantities between 0 and
255. Multiply value by 1.279 to obtain volts.
A/D
counts
IN301A–IN308A
f
Digital input values available as floating point quantities between 0 and
255. Multiply value by 1.279 to obtain volts.
A/D
counts
Database Structure
RA001–RA256 Remote analogs from Ethernet card. NA
a
Primary value of measurement.
b
Measured value if the relay can track frequency, otherwise FREQ = nominal frequency setting NFREQ, and DFDT is undefined.
c
Encoded value: 1 = Sun, 2 = Mon, 3 = Tue, 4 = Wed, 5 = Thu, 6 = Fri, 7 = Sat.
d
Copy of last value set by TEC command or DNP3.
e
See Fault Location on page R.1.18 for more information on this value.
f
Digital input analog values are not available for boards that have optoisolated inputs.
Table B.2 Analog Quantities Sorted By Function (Sheet 7 of 7)
Label Description Units