Alstom SHPM 101 - Week Infeed Feature por Scheme

SERVICE MANUAL R5888C
QUADRAMHO Chapter 2
Appendix A
Page 61 of 71
Figure 70: Week infeed feature POR scheme
1
&
CTX WI
Z
1
A
VTS BLOCK WI
&
&
Z
1
B
Z
1
C
C.R.X. BREAKER OPEN
Q
S
R
SW8
0
100ms
10ms
0
SW7
0
0
100ms
Z
2
A
Z
2
B
Z
2
C
1
1
&
1
Z
3
A
Z
3
B
Z
3
C
1
VOLTAGE DETECTORS
LDOV
A
LDOV
B
LDOV
C
60ms
0
&
WEAK INFEED
AIDED TRIP