Technical Data; Local Acceleration Logic Zclcpsch; Identification; Functionality - ABB RED650 Technical Manual

Section 13
Scheme communication
13.2.7
13.3
13.3.1
13.3.2
13.3.3
414

Technical data

Table 234: 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 204: 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 differential protection RED650 2.2 IEC
1MRK 505 394-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