Alstom SHPM 101 - Switch on to Fault Logic

SERVICE MANUAL R5888C
QUADRAMHO Chapter 2
Appendix A
Page 66 of 71
Figure 75: Switch on to fault logic
S.O.T.F.E
n
&
S
R
Q
110ms
0
200ms
0
0
240ms
1
1
1
&
1
20ms
0
&
&
&
S.O.T.F. 98–1
Open
MCB
SWLA
SW2
All poles dead Current detector LDLS
A
Voltage detector LDOV
A
Current detector LDLS
B
Voltage detector LDOV
B
Current detector LDLS
C
Voltage detector LDOV
C
Any Z1, Z2, or Z3 Comparator