Schweitzer Engineering Laboratories SEL-421-4 - Page 706

12.10
SEL-421 Relay Instruction Manual Date Code 20171021
Analog Quantities
UA, UB, UC Apparent power (phase) Megavolt-amperes [MVA]
(primary)
UAD, UBD, UCD Demand phase apparent power Megavolt-amperes [MVA]
(primary)
UAPKD, UBPKD,
UCPKD
Peak demand phase apparent power Megavolt-amperes [MVA]
(primary)
V1A 10-cycle average positive-sequence voltage angle Degrees [°] (±180)
V1FIA Positive-sequence instantaneous voltage angle Degrees [°] (±180)
V1FIM Positive-sequence instantaneous voltage magnitude Volts [V] (secondary)
V1M 10-cycle average positive-sequence voltage magnitude Kilo-volts [kV] (primary)
V1YPMA Positive-sequence synchrophasor voltage angle, Terminal Y Degrees [°] (±180)
V1YPMAD Positive sequence synchrophasor voltage angle, Terminal Y, delayed
for RTC alignment
Degrees [°] (±180)
V1YPMI Positive-sequence synchrophasor voltage imaginary component,
Terminal Y
Kilo Volts [kV] (primary)
V1YPMID Positive-sequence synchrophasor voltage imaginary component,
Terminal Y, delayed for RTC alignment
Kilo Volts [kV] (primary)
V1YPMM Positive-sequence synchrophasor voltage magnitude, Terminal Y Kilo Volts [kV] (primary)
V1YPMMD Positive-sequence synchrophasor voltage magnitude, Terminal Y,
delayed for RTC alignment
Kilo Volts [kV] (primary)
V1YPMR Positive-sequence synchrophasor voltage real component, Terminal Y Kilo Volts [kV] (primary)
V1YPMRD Positive-sequence synchrophasor voltage real component, Terminal Y,
delayed for RTC alignment
Kilo Volts [kV] (primary)
V1ZPMA Positive-sequence synchrophasor voltage angle, Terminal Z Degrees [°] (±180)
V1ZPMAD Positive sequence Synchrophasor voltage angle, Terminal Z, delayed
for RTC alignment
Degrees [°] (±180)
V1ZPMI Positive-sequence synchrophasor voltage imaginary component,
Terminal Z
Kilo Volts [kV] (primary)
V1ZPMID Positive-sequence synchrophasor voltage imaginary component,
Terminal Z, delayed for RTC alignment
Kilo Volts [kV] (primary)
V1ZPMM Positive-sequence synchrophasor voltage magnitude, Terminal Z Kilo Volts [kV] (primary)
V1ZPMMD Positive-sequence synchrophasor voltage magnitude, Terminal Z,
delayed for RTC alignment
Kilo Volts [kV] (primary)
V1ZPMR Positive-sequence synchrophasor voltage real component, Terminal Z Kilo Volts [kV] (primary)
V1ZPMRD Positive-sequence synchrophasor voltage real component, Terminal Z,
delayed for RTC alignment
Kilo Volts [kV] (primary)
VA1YFA Terminal Y, positive-sequence filtered voltage, angle Degrees [°] (±180°)
VA1YFI Terminal Y, positive-sequence filtered voltage, imaginary component Volts [V] (secondary)
VA1YFM Terminal Y, positive-sequence filtered voltage, magnitude Volts [V] (secondary)
VA1YFR Terminal Y, positive-sequence filtered voltage, real component Volts [V] (secondary)
VA1ZFA Terminal Z, positive-sequence filtered voltage, angle Degrees [°] (±180°)
VA1ZFI Terminal Z, positive-sequence filtered voltage, imaginary component Volts [V] (secondary)
VA1ZFM Terminal Z, positive-sequence filtered voltage, magnitude Volts [V] (secondary)
VA1ZFR Terminal Z, positive-sequence filtered voltage, real component Volts [V] (secondary)
VABFA, VBCFA, VCAFA 10-cycle average fundamental phase-to-phase voltage angle Degrees [°] (±180)
Table 12.1 Analog Quantities Sorted Alphabetically (Sheet 10 of 12)
Label Description Unit