'(& )( )'& &) ( &!& ")& &$(( $# Ć %&( $# #)" &&#$
6 - 14
Siemens AG ⋅ May 1998
6.2.4.1.2 Settings for the differential current suĆ
pervision - block 63
The parameters for the differential current supervision
consist of:
1. Diff-current limit I > SUPERV and
2. T-SUPERV (time delay, after which blocking beĆ
comes effective).
The current limits can be set individually for the bus-
section specific protection and the check zone. The
time delay is common to all.
Y
B
6 3 0 0 S E T T I N G S :
S u p e r v i s i o n ?
Start of the block "supervision parameters"
"
A
6 3 0 3 D I F F S U P E R V
= a c t i v e
Differential current supervision function
= active
= inactive
The differential current supervision must be switched
on during normal service. Disconnection is only inĆ
tended for testing purposes (e.g. checking the pick-
up characteristic).
"
A
6 3 0 4 T – D I F F s U P V
= 2 s
Time delay for blocking of protection or alarm
minimum setting: 1 s................
maximum setting: 10 s...............
A
"
6 3 0 5 I > S U P E R V : B Z
= 0 . 1 0 I / I n o
Differential current limit for the bus-section specific
protection
minimum setting: 0.05 /
no
...........
maximum setting: 0.80 /
no
...........
A
"
6 3 0 6 I > S U P E R V : C Z
= 0 . 1 0 I / I n o
Differential current limit for the check zone
minimum setting: 0.05 /
no
...........
maximum setting: 0.80 /
no
...........
"
A
6 3 0 7 D I F F S U P B Z
= a l a r m o n l y
Reaction for pick-up of the bus-section specific diffeĆ
rential current supervision (refer to chapter 4.7.8.3)
= alarm only
= Block w aut rel (Blocking with automatic release)
= Block. w. store (Blocking with storage)
"
A
6 3 0 8 D I F F S U P C Z
= a l a r m o n l y
Reaction for pick-up of the differential current suĆ
pervision for the check zone (refer to chapter 4.7.8.3)
= alarm only
= Block w aut rel (Blocking with automatic release)
= Block w store (Blocking with storage)
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