New Trip Target Timer; Non-Volatile Memory Settings; Memory Settings - ABB REF610 Technical Reference Manual

REF610 REF610
Table 5.1.4.10.-12 SG3
Switch Function
SG3/1 Disable of the AR function by the trip signal from element 50P-2
SG3/2 Dsable of the AR function by the trip signal from element 50N
SG3/3 Disable of the AR function by the alarm signal from element 49
SG3/4 Disable of the AR function by the trip signal from element 46
*
SG3/5 Resetting targets at CB reclosing
*
ΣSG3
68
Feeder Protection Relay
Technical Reference Manual - ANSI Version
When the switch is in position 1, the AR function is disabled.
When the switch is in position 1, targets are reset when the AR function
issues a reclosing command to the circuit breaker.

New trip target timer

The new trip target timer can be configured to allow a second trip target on the
LCD. When several protection elements trip, the first trip target is displayed until
the time, as specified by the NEW TRIP IND. setting value, has expired. After this,
a new trip target can displace the old one. The basic protection functions are not
affected by the NEW TRIP IND. setting.
Table 5.1.4.10.-13 New trip target timer
Setting Description
New trip target New trip target timer in minutes
No new trip target allowed until the
previous one has been manually
cleared.

Non-volatile memory settings

Non-volatile memory is backed up by a battery; the battery must be
inserted and charged.
The table below presents data which can be configured to be stored in the non-
volatile memory. All of the functions mentioned below can be selected separately
with switches 1...5 either via the HMI or the SPA bus.
Table 5.1.4.10.-14 Memory settings
Setting Switch Function
Non-volatile

memory settings

1 0 = operation target messages and LEDs
*
are cleared
1 = operation target messages and LEDs
*
are retained
2 1 = disturbance recorder data is retained
*
3 1 = event codes are retained
*
1MRS755535
Default setting
1
1
1
1
0
15
Setting range Default setting
0...998 60
999 -
Default setting
1
a)
1
a)
1