GOV_MOD_ISOC
AVR_MODE_DRP
FUEL_RCK_POS
I_EXCITATION
BLOCK
Control
logic
TIE_B_OPEN
TIE_A_CLOSED
RESET
I3P
GEN1_DATA
GEN8_DATA
GCB_CLOSED
GEN_MOD_LOC
GOV_MOD_DRP
Q1, Q2 … Q8
Monitoring
GOV_MOD_BASE
FUEL_RCK_FLT
I_EXCT_FLT
Topology
determi-
nation
P1, P2 … P8
GOV_MOD_CDRP
CDRP_F_SET
BASE_P_SET
ENG_LOD_UNLD
BCKUP_PRT_ST
OPERATE
OPR_TIE_A
OPR_TIE_B
STOP_ENGINE
DE_EXCITE
PRE_TRIP
OV_FUEL_FLT
UN_FUEL_FLT
OV_EXCT_FLT
UN_EXCT_FLT
FLT_DETECTED
INT_BLKD
EXTERNAL_FLT
GCB_OPEN
TIE_B_CLOSED
TIE_A_OPEN
U3P
GCB_TRP_FAIL
TIE_TRP_FAIL
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
Figure 797
and
Figure 798
.
Condition monitoring functions
1MRS759142 F
1406 REX640
Technical Manual