Schweitzer Engineering Laboratories SEL-421-4 - Page 716

12.20
SEL-421 Relay Instruction Manual Date Code 20171021
Analog Quantities
IEEE 1588 PTP Status
PTPDSJI PTP 100PPS data stream jitter in µs µs
PTPMCC PTP master clock class enumerated value N/A
PTPOTJS Slow converging PTP ON TIME marker jitter in µs, fine accuracy µs
PTPOTJF Fast converging PTP ON TIME marker jitter in µs, coarse accuracy µs
PTPOFST Raw clock offset between PTP master and relay time ns
PTPPORT Active PTP port number N/A
PTPTBTW Time between PTP 100PPS pulses in µs µs
PTPSTEN PTP Port State enumerated value N/A
Time Error Connection Factor Command
TECORR Time error correction preload value Seconds [s]
TE Time error Seconds [s]
Synchrophasor Quantities
VAYPMM, VBYPMM,
VCYPMM
Synchrophasor voltage magnitude, Terminal Y Kilo Volts [kV] (primary)
VAZPMM, VBZPMM,
VCZPMM
Synchrophasor voltage magnitude, Terminal Z Kilo Volts [kV] (primary)
VAYPMA, VBYPMA,
VCYPMA
Synchrophasor voltage angle, Terminal Y Degrees [°] (±180)
VAZPMA, VBZPMA,
VCZPMA
Synchrophasor voltage angle, Terminal Z Degrees [°] (±180)
VAYPMR, VBYPMR,
VCYPMR
Synchrophasor voltage real component, Terminal Y Kilo Volts [kV] (primary)
VAZYPMR, VBZPMR,
VCZPMR
Synchrophasor voltage real component, Terminal Z Kilo Volts [kV] (primary)
VAYPMI, VBYPMI,
VCYPMI
Synchrophasor voltage imaginary component, Terminal Y Kilo Volts [kV] (primary)
VA Z Y P M I , V B Z P M I ,
VCZYPMI
Synchrophasor voltage imaginary component, Terminal Z Kilo Volts [kV] (primary)
V1YPMM Positive-sequence synchrophasor voltage magnitude, Terminal Y Kilo Volts [kV] (primary)
V1ZPMM Positive-sequence synchrophasor voltage magnitude, Terminal Z Kilo Volts [kV] (primary)
V1YPMA Positive-sequence synchrophasor voltage angle, Terminal Y Degrees [°] (±180)
V1ZPMA Positive-sequence synchrophasor voltage angle, Terminal Z Degrees [°] (±180)
V1YPMR Positive-sequence synchrophasor voltage real component,
Terminal Y
Kilo Volts [kV] (primary)
V1ZPMR Positive-sequence synchrophasor voltage real component,
Terminal Z
Kilo Volts [kV] (primary)
V1YPMI Positive-sequence synchrophasor voltage imaginary component,
Terminal Y
Kilo Volts [kV] (primary)
V1ZPMI Positive-sequence synchrophasor voltage imaginary component,
Terminal Z
Kilo Volts [kV] (primary)
IAWPMM, IBWPMM,
ICWPMM
Synchrophasor current magnitude, Terminal W Amperes [A] (primary)
IAXPMM, IBXPMM,
ICXPMM
Synchrophasor current magnitude, Terminal X Amperes [A] (primary)
Table 12.2 Analog Quantities Sorted by Function (Sheet 9 of 13)
Labels Description Unit