Sel 421 - Page 235

U.5.17
Date Code 20090715 User’s Guide SEL-421 Relay
Front-Panel Operations
Front-Panel Menus and Screens
Figure 5.19 RMS, FUND, and DEMAND Metering Screens
VOLTAGE (kV)
VA = x xxx.x
VB = x xxx.x
VC = x xxx.x
CURRENT (A)
IA = x xxx.x
IB = x xxx.x
IC = x xxx.x
FREQ = 60.00 Hz
VDC1 = xxx.x V
VDC2 = xxx.x V
RMS LINE METER
VOLTAGE (kV)
VAB = x xxx.x
VBC = x xxx.x
VCA = x xxx.x
RMS LINE METER
ACTIVE POWER (MW)
A = -xx xxx.x
B = -xx xxx.x
C = -xx xxx.x
3P = -xx xxx.x
REACTIVE (MVAR)
A = -xx xxx.x
B = -xx xxx.x
C = -xx xxx.x
3P = -xx xxx.x
RMS LINE METER
APPARENT POWER (MVA)
A = xx xxx.x
B = xx xxx.x
C = xx xxx.x
3P = xx xxx.x
POWER FACTOR
A = x.xx LAG
B = x.xx LAG
C = x.xx LAG
3P = x.xx LAG
RMS LINE METER
CURRENTS (A)
IA = x xxx.x
IB = x xxx.x
IC = x xxx.x
RMS BREAKER n METER
VOLTAGE (kV)
VA = x xxx.x +xxx˚
VB = x xxx.x +xxx˚
VC = x xxx.x +xxx˚
CURRENT (A)
IA = x xxx.x +xxx˚
IB = x xxx.x +xxx˚
IC = x xxx.x +xxx˚
FREQ = 60.00 Hz
VDC1 = xxx.x V
VDC2 = xxx.x V
FUND LINE METER
VOLTAGE (kV)
VAB = x xxx.x +xxx˚
VBC = x xxx.x +xxx˚
VCA = x xxx.x +xxx˚
FUND LINE METER
SEQUENCE I (A)
I1 = x xxx.x +xxx˚
3I2 = x xxx.x +xxx˚
3I0 = x xxx.x +xxx˚
SEQUENCE V (kV)
V1 = x xxx.x +xxx˚
3V2 = x xxx.x +xxx˚
3V0 = x xxx.x +xxx˚
FUND LINE METER
ACTIVE POWER (MW)
A = -xx xxx.x
B = -xx xxx.x
C = -xx xxx.x
3P = -xx xxx.x
REACTIVE (MVAR)
A = -xx xxx.x
B = -xx xxx.x
C = -xx xxx.x
3P = -xx xxx.x
FUND LINE METER
APPARENT POWER (MVA)
A = xx xxx.xx
B = xx xxx.xx
C = xx xxx.xx
3P = xx xxx.xx
POWER FACTOR
A = x.xx LEAD
B = x.xx LEAD
C = x.xx LEAD
3P = x.xx LEAD
FUND LINE METER
CURRENTS (A)
IA = x xxx.xx +xxx˚
IB = x xxx.xx +xxx˚
IC = x xxx.xx +xxx˚
FUND BREAKER n METER
BREAKER METERING
LINE METERING
CURRENTS (A)
IA PEAK = xxx xxx.x
DEM = xxx xxx.x
IB PEAK = xxx xxx.x
DEM = xxx xxx.x
IC PEAK = xxx xxx.x
DEM = xxx xxx.x
3I2 PEAK = xxx xxx.x
DEM = xxx xxx.x
3I0 PEAK = xxx xxx.x
DEM = xxx xxx.x
DEMAND METER
POWER (MW)
A PEAK = xxx xxx.x
DEM = xxx xxx.x
B PEAK = xxx xxx.x
DEM = xxx xxx.x
C PEAK = xxx xxx.x
DEM = xxx xxx.x
3P PEAK = xxx xxx.x
DEM = xxx xxx.x
DEMAND METER
POWER(MVA)
A PEAK = xxx xxx.x
DEM = xxx xxx.x
B PEAK = xxx xxx.x
DEM = xxx xxx.x
C PEAK = xxx xxx.x
DEM = xxx xxx.x
3P PEAK = xxx xxx.x
DEM = xxx xxx.x
DEMAND METER
DEMAND METER
DEMAND METER
NO YES
RESET PEAK NOW?
LAST PEAK DEMAND
RESET:
MM/DD/YYYY HH:MM:SS
NO YES
RESET DEMAND NOW?
LAST DEMAND RESET:
MM/DD/YYYY HH:MM:SS
n = 1 or 2, representing Circuit
Breaker 1 or Circuit Breaker 2,
respectively.
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