GE UR T60 - Page 395

GE Multilin T60 Transformer Protection System 5-257
5 SETTINGS 5.7 CONTROL ELEMENTS
5
Figure 5–144: BREAKER RESTRIKE SCHEME LOGIC
RUN
Current interruption
detection logic
<0.05pu
for > ¼ cycle
I
t
mag
ARMED
RESET
SETTING
= Enabled
BREAKER RESTRIKE 1
FUNCTION
SETTING
=Off
BKR RSTR 1 BLK
AND
SETTING
=IA
BREAKER RESTRIKE 1
SOURCE
=IB
=IC
SETTING
=Off
BKR RSTR 1 BKR OPEN
SETTING
=Off
BKR RSTR 1 OPEN CMD
SETTING
=Off
BKR RSTR 1 CLS CMD
AND
OR
SETTING
BREAKER RESTRIKE 1 PICKUP
RUN
Restrike detection logic
0
T
RST
SETTING
BREAKER RESTRIKE 1
RESET DELAY
0
T
RST
0
T
RST
FLEXLOGIC OPERANDS
BKR RESTRIKE 1 OP A
BKR RESTRIKE 1 OP B
BKR RESTRIKE 1 OP C
BKR RESTRIKE 1 OP
FLEXLOGIC OPERAND
OR
834012A1.CDR