9.6.5 Operation principle
The function can be enabled and disabled with the
Operation
setting. The
corresponding parameter values are "on" and "off".
The operation of ASGCSYN can be described with a module diagram. All the
modules in the diagram are explained in the next sections.
Synchroni-
zaon
check and
control
GCB_CLOSE
Voltage and
frequency
matching
MODE_GOV
MODE_AVR
GCB_OPEN
ISO_A_CLOSE
LBDG
LBLG
DBLG
DBDG
RAISE_U
LOWER_U
RAISE_F
LOWER_F
ISO_B_CLOSE
EXT_CHECK
GCB_TEST
GOV_DROOP
AVR_DROOP
DROOP_GOV
DROOP_AVR
GOV_ALM_HI
GOV_ALM_LO
AVR_ALM_HI
AVR_ALM_LO
DIFF_U_ASC1
DIFF_F_ASC1
SYNC_INPRO
SYNC_OK
CL_FAIL_AL
CMD_FAIL_AL
GEN_ASC_DATA
MATCH_INPRO
MATCH_OK
CLOSE_CB
ASC1_GEN_DAT
Energizing
check
MOD_CHG_GOV
MOD_CHG_AVR
U3P1
U3P2
CL_COMMAND
U_A_AB
U_B_BC
U_C_CA
BYPASS
BLOCK
U_A_AB
Figure 854: Functional module diagram
ASGCSYN can operate either with the U_AB or U_A voltages. The selection of used
voltages is defined with the
VT connection
setting of the voltage measurement
parameters.
1MRS759142 F
Control functions
REX640
Technical Manual
1559
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