Section 12
Scheme communication
12.2.7
12.3
12.3.1
12.3.2
12.3.3
446
Technical data
Table 259:
ZCRWPSCH technical data
Function
Detection level phase-to-neutral
voltage
Detection level phase-to-phase
voltage
Operate time for current reversal
logic
Delay time for current reversal
Coordination time for weak-end
infeed logic
Local acceleration logic ZCLCPSCH
Identification
Function description
Local acceleration logic
Functionality
To achieve fast clearing of faults on the whole line, when no communication
channel is available, local acceleration logic (ZCLCPSCH) can be used. This logic
enables fast fault clearing and re-closing during certain conditions, but naturally, it
can not fully replace a communication channel.
The logic can be controlled either by the autorecloser (zone extension) or by the
loss-of-load current (loss-of-load acceleration).
Function block
ZCLCPSCH
I3P*
TRZE
BLOCK
TRLL
ARREADY
NDST
EXACC
BC
LLACC
IEC13000307-1-en.vsd
IEC13000307 V1 EN-US
Figure 228:
ZCLCPSCH function block
Range or value
(10-90)% of UBase
(10-90)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
IEC 61850
IEC 60617
identification
identification
ZCLCPSCH
Line distance protection REL650 2.2 IEC
1MRK 506 382-UEN A
M16039-1 v16
Accuracy
±0.5% of U
r
±0.5% of U
r
±0.2% or ±15 ms
whichever is greater
±0.2% or ±15 ms
whichever is greater
±0.2% or ±15 ms
whichever is greater
SEMOD52894-1 v4
M14860-1 v4
ANSI/IEEE C37.2
device number
-
-
M13823-3 v7
M13816-3 v4
Technical manual