Autoreclose (760 Only) - GE 750 Instruction Manual

17.9 CONTROL SCHEMES
Test connections per the figure below:
STOP
TEST
TRIGGER
30
VARIABLE
CURRENT
SOURCE
DYNAMIC
TEST SET
For these tests output relay 7 Auxiliary is programmed to operate when the relay trips, to stop
17
the timer. If this is inconvenient, use any other output auxiliary relay.
NOTE
Overall Operation:
1. Check that the relay is in the local control mode, and the LOCAL indicator is on. Open and close the
breaker by pressing the relay BREAKER OPEN and BREAKER CLOSE pushbuttons. Check that the
BREAKER OPEN and BREAKER CLOSED indicators are correctly displaying the state of the breaker.
Leave the breaker open.
2. Check that indicator RECLOSURE ENABLED is lit and that RECLOSURE DISABLED is off.
3. Close the breaker by pressing the BREAKER CLOSE pushbutton. The RECLOSURE ENABLED indicator
should go out, and the RECLOSURE DISABLED indicator should come on during the 'AR block time upon
manual close'. Immediately after this interval, check that indicator RECLOSURE ENABLED is on, and the
RECLOSURE IN PROGRESS and RECLOSURE DISABLED indicators are off. Any output relays pro-
grammed to operate for Reclose Enabled should now be operated.
4. Check the interval of the 'AR block time upon manual close' by observing the RECLOSURE ENABLED
LED.
17-
70
Courtesy of NationalSwitchgear.com
± ±
Ia Ia
± ±
Ib
Ib
±
±
Ic
Ic
POWER POWER
MULTIMETER MULTIMETER
INITIATE RECLOSURE PB1
SW8
Figure 17–6: AUTORECLOSE TEST CONNECTION
750/760 Feeder Management Relay

17.9.8 AUTORECLOSE (760 ONLY)

E11
CONTROL
7 AUX.
F10
POWER
G7
Ia
H7
G8
Ib
750/760
H8
G9
Ic
H9
2 CLOSE
LOGIC e
1 TRIP
SW7
LOGIC f
17 COMMISSIONING
H12 (+)
(-)
H11
G11
G12
BUS
C10
C11
BREAKER
SW10
E3
CLOSE
F3
SW9
E2
TRIP
F2
52a/52b
818790A9.CDR
GE Power Management