ABB RELION 650 SERIES, Technical Manual

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12.1.7 Technical data
M16038-1 v14
Table 254: ZCPSCH technical data
Function Range or value Accuracy
Scheme type Off
Intertrip
Permissive UR
Permissive OR
Blocking
DeltaBlocking
-
Operate voltage, Delta U (0–100)% of UBase ±5.0% of ΔU
Operate current, Delta I (0–200)% of IBase ±5.0% of ΔI
Operate zero sequence voltage,
Delta 3U0
(0–100)% of UBase ±10.0% of Δ3U0
Operate zero sequence current,
Delta 3I0
(0–200)% of IBase ±10.0% of Δ3I0
Co-ordination time for blocking
communication scheme
(0.000-60.000) s ±0.2% or ±15 ms
whichever is greater
Minimum duration of a carrier send
signal
(0.000-60.000) s ±0.2% or ±45 ms
whichever is greater
Security timer for loss of guard
signal detection
(0.000-60.000) s ±0.2% or ±15 ms
whichever is greater
Operation mode of unblocking logic Off
NoRestart
Restart
-
12.2 Current reversal and Weak-end infeed logic for
distance protection 3-phase ZCRWPSCH
IP15751-1 v4
12.2.1 Identification
M15073-1 v5
Function description IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Current reversal and weak-end infeed
logic for distance protection 3-phase
ZCRWPSCH - 85
12.2.2 Functionality
M13896-3 v15
The ZCRWPSCH function provides the current reversal and weak end infeed logic
functions that supplement the standard scheme communication logic. It is not
suitable for standalone use as it requires inputs from the distance protection
functions and the scheme communications function included within the terminal.
On detection of a current reversal, the current reversal logic provides an output to
block the sending of the teleprotection signal to the remote end, and to block the
1MRK 506 382-UEN A
Section 12
Scheme communication
Line distance protection REL650 2.2 IEC 441
Technical manual