Schweitzer Engineering Laboratories SEL-421-4 - Page 1004

6.28
SEL-400 Series Relays Instruction Manual Date Code 20171006
Autoreclosing
Autoreclose Logic Diagrams
Figure 6.9 Single-Pole Reclose Enable
SPLSHT
79STRT
BK1EXT
BK2EXT
ESPR1
79CY3
BK1LO
BK2LO
SPARC
SPRI
S
R
Q
R3PTE1
R3PTE2
R3PTE
ESPR2
NSPSHOT =N
NUMBK := 2
NUMBK := 2
NUMBK := 1
3PARC
SPARC
(Drop Out)
SPOIT
(Time out)
79DTL
3POLINE
(R has precedence over S)
BK1TYP := 3
BK1TYP := 3
BK2TYP := 3
0
2
CYC
Figure 6.10 Three-Pole Reclose Enable
3PLSHT
BK1LO
BK2LO
E3PR1
E3PR2
NUMBK := 2
3PARC
3PRI
0
4 CYC