ABB REL650 series - Technical Data

12.1.7 Technical data
Table 336: ZCPSCH (85) technical data
Function
Range or value Accuracy
Scheme type Disabled
Intertrip
Permissive UR
Permissive OR
Blocking
DeltaBlocking
-
Operate voltage, Delta V (0–100)% of VBase ± 5.0% of ΔV
Operate current, Delta I (0–200)% of IBase ± 5.0% of ΔI
Operate zero sequence voltage,
Delta 3V0
(0–100)% of VBase ± 10.0% of Δ3V0
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 ± 0.5% ± 10 ms
Minimum duration of a carrier send
signal
(0.000-60.000) s ± 0.5% ± 10 ms
Security timer for loss of guard signal
detection
(0.000-60.000) s ± 0.5% ± 10 ms
Operation mode of unblocking logic Disabled
NoRestart
Restart
-
12.2 Current reversal and WEI logic for distance protection
3-phase ZCRWPSCH (85)
12.2.1 Identification
Function description
IEC 61850
identification
IEC 60617
identification
ANSI/IEEE C37.2
device number
Current reversal and WEI logic for
distance protection 3-phase
ZCRWPSCH - 85
12.2.2 Functionality
The current reversal function is used to prevent unwanted operations due to current
reversal when using permissive overreach or unblock protection or unblocking schemes
in application with parallel lines.
Section 12 1MRK 506 335-UUS A
Scheme communication
502
Technical manual