Alstom SHPM 101, Service Manual

Page: 160 / 336

SERVICE MANUAL R5888C
QUADRAMHO Chapter 2
Appendix A
Page 24 of 71
Figure 23:
Block diagram board ZH0735
Disable filters Switch on to fault enabled Pole dead ‘A
’
Pole dead ‘B’ Pole dead ‘C’
Zone 1
interrupt
gating
logic
Por
t A0
PA
1
PA
2
PA
3
PA
4
PA
5
PA
6
PA
7
Por
t B0
PB1 PB2 PB3 PB4 PB5 PB6 PB7 Por
t C0
PC1 PC2 PC3 PC4 PC5 PC6 PC7
Fault detected by DEF Contact breaker open Comparator C–A zone 1 Comparator B–C zone 1 Comparator A–B zone 1 Comparator C–N zone 1 Comparator B–N zone 1 Comparator A–N zone 1 Block Z2T and Z3T Zero sequence voltage level detector Comparator C–A zone 3 Comparator B–C zone 3 Comparator A–B zone 3 Comparator C–N zone 3 Comparator B–N zone 3 Comparator A–N zone 3 Channel in ser
vice
Carrier received Comparator C–A zone 2 Comparator B–C zone 2 Comparator A–B zone 2 Comparator C–N zone 2 Comparator B–N zone 2 Comparator A–N zone 2 High set neutral current level detector
DB
Programmable
peripheral
inter
face 0
CS
Reset
DB
CS
Reset
Por
t B0 PB1 PB2 PB3 PB4 PB5 PB6 PB7
Por
t CD0
PC1 PC2 PC3 PC4 PC5 PC6 PC7
Por
t A0
PA
1
PA
2
PA
3
PA
4
PA
5
PA
6
PA
7
Programmable
peripheral inter
face 2
N C
B
A
Phase
C B A
Low set current level detectors Over voltage level detectors
Memor
y input
Memor
y input
common
‘C’ phase trip ‘B’ phase trip ‘A
’ phase trip
Block auto reclose Any comparator operated Power swing indication Self check in progress Master reset/inver
t comparators
Fuge fall Switch on to fault Aide trip Zone 3 time delayed trip Zone 2 time delayed trip Carrier received annunciation Any trip Carrier transmit
Sign wave to square
wave conversion
Push button
and push
button override
Comparator AB zone 6
INT T1
Por
t 1
P26
P25 T0
B039
Microcontroller
P20–P23
P27 P24
Reset
DB
4k x 8 aprom
D
AA
8 bit latch
D
D
CS
Reset
6 bit ‘D’ type flip
flop
D
00 01 02 03 04 05
Reset pulse
S1
ENSB1
S1
EN socket
S2
ENSB1
S3
ENSB1
S4
ENSB1
CSWX ENSB1 CSWY ENSB1
Por
t A0
PA
1
PA
2
PA
3
PA
4
PA
5
PA
6
PA
7
Por
t B0
PB1 PB2 PB3 PB4 PB5 PB6 PB7
Por
t C0
PC1 PC2 PC3 PC4 PC5 PC6 PC7
Programmable
peripheral
inter
face 1
Code switch
enable monitor
Inoperative alar
m circuits
Inoperative alar
m input
Input
buffer
enable
Phase
A
B
C
Spare
High set current
level
detectors
Enable
Inoperative alar
m outputs
Power swing
Enable filters
Enable CSW Enable SB1 Enable SB2 Enable SB3
Enable SB4
Extended zone 1 reach 3 phase trip
Fuse fail indication Switch on to fault indication Aided trip indication Zone 3 time delayed trip indication Zone 2 time delayed indication ‘C’ phase fault indication ‘B’ phase fault indication ‘A
’ phase fault indication
Amplitude hysteresis (trip)
FF SOTF AT Z3 Z2 C B A
Indications
‘C’ phase memor
y output
Memor
y enabled
Power swing timer run out Fault location Z3(PH) Fault location Z2(E) Fault location Z2(PH) Fault location Z1(PHLE)
120
°
120
°
‘A
’ phase memor
y output
‘B’ phase memor
y output
Enable SK1