ABB REJ 527, Technical Reference Manual

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1MRS 750616-MUM Directional or Non-Directional Earth-Fault Relay
Technical Reference Manual
REJ 527
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New trip indication timer
The new trip indication timer can be configured to allow a second trip indication on
the LCD. When several protection stages trip, the first trip indication will be
displayed until the time, as specified by the “NEW TRIP IND.” setting value, has
expired. After this, a new trip indication can displace the old one. The basic
protection functions are not affected by the “NEW TRIP IND.” setting.
Non-volatile memory settings
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 in “MEMORY SETTINGS”.
Table 4.1.4.6-8 SGR1...SGR6
Switch Function Default
SGR1/1...4 U
0b
> signal to output contacts PO1, PO2, SO1 and SO2 12
SGR2/1...4 t
b
> signal to output contacts PO1, PO2, SO1 and SO2 3
SGR3/1...4 I
0
>/U
0
> signal to output contacts PO1, PO2, SO1 and SO2 12
SGR4/1...4 t
0
> signal to output contacts PO1, PO2, SO1 and SO2 3
SGR5/1...4 I
0
>>/U
0
>> signal to output contacts PO1, PO2, SO1 and SO2 12
SGR6/1...4 t
0
>> signal to output contacts PO1, PO2, SO1 and SO2 3
Table 4.1.4.6-9 New trip indication timer
Setting Description
Setting
range Default
setting
New trip indication New trip indication timer in minutes 0...998 60
No new trip indication allowed until the
previous one has been manually cleared 999
1 Uob>
tb> 1
2 3 4 5 6 7 8
2 3 4 5 6 7 8
1
Io>/
Uo>
to> 1
2 3 4 5 6 7 8
2 3 4 5 6 7 8
1
Io>>/
Uo>>
to>> 1
2 3 4 5 6 7 8
2 3 4 5 6 7 8
128 1 2 4 8 16 32 64
OSM5_7
Checksum
(factory setting)
PO1 PO2 SO1 SO2 Not in use Not in use Not in use Not in use
SGR1
∑
SGR1=
(12)
∑
SGR2=
(3)
SGR2
∑
SGR3=
(12)
∑
SGR4=
(3)
SGR5
∑
SGR5=
(12)
∑
SGR6=
(3)
SGR3
SGR4
SGR6
Weighting factor