ABB Relion 650 Series Technical Manual page 354

Section 11
Scheme communication
11.3 Local acceleration logic ZCLCPLAL
11.3.1 Identification
Function description
Local acceleration logic
11.3.2 Functionality
To achieve fast clearing of faults on the whole line, when no communication channel is available,
local acceleration logic (ZCLCPLAL) can be used. This logic enables fast fault clearing 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).
11.3.3 Function block
I3P*
BLOCK
ARREADY
NDST
EXACC
BC
LLACC
IEC09000005 V1 EN-US
Figure 186: ZCLCPLAL function block
11.3.4 Signals
Table 282: ZCLCPLAL Input signals
Name
I3P
BLOCK
ARREADY
NDST
EXACC
BC
LLACC
348
ZCLCPLAL
TRZE
TRLL
IEC09000005-1-en.vsd
Type Default
GROUP
SIGNAL
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
BOOLEAN
© Copyright 2011 ABB Power Grids. All rights reserved
IEC 61850 IEC 60617
identification identification
ZCLCPLAL
Description
- Three phase group signal for current inputs
0 Block of function
0 Autoreclosure ready, releases function used for fast trip
0 Non directional criteria used to prevent instantaneous trip
0 Connected to function used for tripping at zone extension
0 Breaker Close
0 Connected to function used for tripping at loss of load
ANSI/IEEE C37.2
device number
- -
Line distance protection REL650
1MRK 506 326-UUS B
M14860-1 v3
M13823-3 v4
M13816-3 v3
PID-1519-INPUTSIGNALS v5
Technical manual