ABB RELION REX640 Technical Manual page 1406

Condition monitoring functions
GOV_MOD_ISOC
GOV_MOD_CDRP
GOV_MOD_BASE
ENG_LOD_UNLD
AVR_MODE_DRP
Figure 796: Functional module diagram
7.5.5.1 Topology determination
The Topology determination module identifies the group of busbar and generators
that are electrically connected and calculates the subnetwork number for each
group. The maximum network configuration considered is 8 generators, 8 GCBs
and 8 tie breakers.
Some typical busbar arrangements in a Diesel Generator Monitoring and protection
System (DGMS) are shown in
1406
BCKUP_PRT_ST
RESET
BLOCK
GCB_CLOSED
GCB_OPEN
TIE_A_CLOSED
TIE_A_OPEN
TIE_B_CLOSED
TIE_B_OPEN
GEN1_DATA
GEN8_DATA
P1, P2 ... P8
GOV_MOD_DRP
CDRP_F_SET
BASE_P_SET
GEN_MOD_LOC
Q1, Q2 ... Q8
I3P
U3P
FUEL_RCK_POS
I_EXCITATION
Topology
Control
determi-
logic
nation
Monitoring
Figure 797 Figure 798
and
1MRS759142 F
OPERATE
OPR_TIE_A
OPR_TIE_B
STOP_ENGINE
DE_EXCITE
PRE_TRIP
FLT_DETECTED
EXTERNAL_FLT
GCB_TRP_FAIL
TIE_TRP_FAIL
INT_BLKD
OV_FUEL_FLT
UN_FUEL_FLT
OV_EXCT_FLT
UN_EXCT_FLT
FUEL_RCK_FLT
I_EXCT_FLT
.
Technical Manual
REX640