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9.1 OVERVIEW
745 STATUS
SYSTEM STATUS
TRANSFORMER
IN SERVICE
DE-ENERGIZED
TRANSFORMER
SELF-TEST
OVERLOAD
ERROR
LOAD-LIMIT
TEST MODE
REDUCED
DIFFERENTIAL
BLOCKED
SETPOINT GROUP 1
SETPOINT GROUP 2
SETPOINT GROUP 3
LOCAL
RESET
SETPOINT GROUP 4
MESSAGE
NEXT
PROGRAM PORT
SETPOINT
MESSAGE
ACTUAL
ESCAPE
VALUE
ENTER
g
745
TRANSFORMER MANAGEMENT RELAY™
POWER SUPPLY
MODULE TO
WALL PLUG
1
A
B
terminal block AB
9
9-4
CONDITIONS
TRIP
ALARM
PICKUP
PHASE A
PHASE B
PHASE C
GROUND
7
8
9
4
5
6
1
2
3
.
0
HELP
RS232 CONNECTOR
TO
COMPUTER COM PORT
TYPICALLY
COM1 OR COM2
Figure 9–4: RS232 COMMUNICATIONS SETUP
GE Power Management
RS232/RS485
CONVERTER
12
745 rear
RS232 CONNECTOR
COMPUTER COM PORT
TYPICALLY
COM1 OR COM2
Figure 9–5: RS485 COMMUNICATIONS SETUP
745 Transformer Management Relay
COMPUTER
File
COMPUTER
TO
9 745 PC SOFTWARE
Actual
Comms
Help
MOTOR: RUNNING
STATUS: OK
814798A3.CDR
File
Actual
Comms
Help
MOTOR: RUNNING
STATUS: OK
814797A3.CDR
GE Power Management
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