Sel 411L - Page 586

P.7.18
SEL-411L Relay Protection Manual Date Code 20151029
Front-Panel Operations
Front-Panel Menus and Screens
Figure 7.20 Differential Metering
Events
The front panel features summary event reporting, which simplifies post-fault
analysis. These summary event reports include all trip events, event and data
capture triggering (via the ER SEL
OGIC control equation), and manual
triggers. The relay displays event reports based on the Relay Word bit
elements in the ER (event report trigger) SEL
OGIC control equation. See Event
Report on page P.8.15 for more information on event reports.
DIFFERENTIAL METERING
ALPHA PLANE
87LA = 0.000 ±000.0°
87LB = 0.000 <angle>
87LC = 0.000 <angle>
87LQ = 0.000 <angle>
87LG = 0.000 <angle>
DIFFERENTIAL METER
Screen (a) if E87L = Y
(a)
ALPHA PLANE
DATA NOT AVAILABLE
DIFFERENTIAL METER
Screen (b) if 87MTR bit is not
asserted.
(b)
LOCAL (PU)
IA = 00.000 ±000.0°
IB = 00.000 <angle>
IC = 00.000 <angle>
I1 = 00.000 <angle>
3I2 = 00.000 <angle>
3I0 = 00.000 <angle>
DIFFERENTIAL METER
Screen visible if E87L = Y
CHANNEL 1(PU)
IA = 00.000 ±000.0°
IB = 00.000 <angle>
IC = 00.000 <angle>
I1 = 00.000 <angle>
3I2 = 00.000 <angle>
3I0 = 00.000 <angle>
DIFFERENTIAL METER
Screen (a) if E87L = Y and 87CHnRQ = 1
n = 1–3
(a)
CHANNEL 1 (PU)
DATA NOT AVAILABLE
DIFFERENTIAL METER
Screen (b) if 87CHnOK bit is not
asserted.
(b)
DIFF. CURRENTS (PU)
IA = 00.000 ±000.0°
IB = 00.000 <angle>
IC = 00.000 <angle>
I1 = 00.000 <angle>
3I2 = 00.000 <angle>
3I0 = 00.000 <angle>
DIFFERENTIAL METER
Screen (a) if E87L = Y
(a)
DIFF. CURRENTS (PU
DATA NOT AVAILABLE
DIFFERENTIAL METER
Screen (b) if 87MTR bit is not
asserted.
(b)