Alstom SHPM 101 - Basic-Simplified Distance Scheme Logic

SERVICE MANUAL R5888B
QUADRAMHO Chapter 1
Appendix A
Page 3 of 8
Z
B
A
Zone -1
Zone -2
Zone -3
Z
XX XX XX XX
Zone -1
Zone -2
Zone -3
OR
Zone -1
Zone -2
Zone -3
tZ2
tZ3
Relay A
Trip A
OR
Zone -1
Zone -2
Zone -3
tZ2
tZ3
Relay B
Trip B
Figure 3: Basic-simplified distance scheme logic