Sel 411L - Autoreclose Logic Diagrams; Figure 4.5 Circuit Breaker Pole-Open Logic Diagram; Figure 4.6 Line-Open Logic Diagram When E79:= y; Figure 4.7 Line-Open Logic Diagram When E79:= Y1

P.4.27
Date Code 20151029 Protection Manual SEL-411L Relay
Autoreclosing and Synchronism-Check
Autoreclose Logic Diagrams
Autoreclose Logic Diagrams
Figure 4.5 Circuit Breaker Pole-Open Logic Diagram
Figure 4.6 Line-Open Logic Diagram When E79 := Y
Figure 4.7 Line-Open Logic Diagram When E79 := Y1
52AA1
52AB1
52AC1
SPOBK1
3POBK1
52AA1D
52AB1D
52AC1D
Timers in cycles
2POBK1
Note: Similar logic for Breaker 2
0
1.0
0
1.0
0
1.0
Relay
Word Bits
Relay
Word Bits
NBK2
NBK1
3POBK1
3POBK2
3POLINE
LEADBK1
3POBK1
LEADBK2
3POBK2
Relay
Word Bits
Relay
Word Bits
NBK2
3POBK1
3POBK2
NBK1
3POLINE
LEADBK1
3POBK1
LEADBK2
3POBK2
Relay
Word Bits
Relay
Word Bits