GE MiCOM P145 Agile - Blocking Signal Logic; Shots Exceeded Logic; Figure 149: Blocking Signal Logic; Figure 150: Shots Exceeded Logic

7.2.3 BLOCKING SIGNAL LOGIC
V00515
IREF> Trip
I2>1 Trip
Broken Line Trip
Thermal Trip
V<1 Trip
V<2 Trip
V>1 Trip
V>2 Trip
VN>1 Trip
VN>2 Trip
Trip V2>2
Stg1 f+t Trp
Stg1 f+df/dt Trp
Stg1 df/dt +t Trp
Stg1 f+Df/Dt Trp
1
I>3 AR
Block AR
I>3 Trip
&
I>4 AR
Block AR
I>4 Trip
&
I>6 AR
Block AR
I>6 Trip
&
IN1>3 AR
Block AR
IN1>3 Trip
&
IN1>4 AR
Block AR
IN1>4 Trip
&
IN2>3 AR
Block AR
IN2>3 Trip
&
IN2>4 AR
Block AR
IN2>4 Trip
&
ISEF>3 AR
Block AR
ISEF>3 Trip
&
ISEF>4 AR
Block AR
ISEF>4 Trip
&
1
Relay 3 Output
&
Block autoreclose
1
Block AR
CB Fail Alarm
Note: This diagram does not show all stages . Other stages follow similar
principles.
Figure 149: Blocking signal logic
7.2.4 SHOTS EXCEEDED LOGIC
Main High Shots
S
R
Q
Main Protection Start
SC Count >= Main Shots
&
SEF High Shots
S
R
Q
SEF Protection Start
SC Count >= SEF Shots
&
V00504
Figure 150: Shots Exceeded logic
Chapter 13 - Autoreclose P14x
292 P14xEd1-TM-EN-1