Technical Data; Current Reversal And Weak-End Infeed Logic For Distance Protection 3-Phase Zcrwpsch; Identification; Functionality - ABB RED650 Technical Manual

1MRK 505 394-UEN A
13.1.7
13.2
13.2.1
13.2.2
Line differential protection RED650 2.2 IEC
Technical manual

Technical data

Table 229: ZCPSCH technical data
Function
Scheme type
Operate voltage, Delta U
Operate current, Delta I
Operate zero sequence voltage,
Delta 3U0
Operate zero sequence current,
Delta 3I0
Co-ordination time for blocking
communication scheme
Minimum duration of a carrier send
signal
Security timer for loss of guard
signal detection
Operation mode of unblocking logic
Current reversal and Weak-end infeed logic for
distance protection 3-phase ZCRWPSCH

Identification

Function description
Current reversal and weak-end infeed
logic for distance protection 3-phase

Functionality

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
Scheme communication
Range or value
Off
Intertrip
Permissive UR
Permissive OR
Blocking
DeltaBlocking
(0–100)% of UBase
(0–200)% of IBase
(0–100)% of UBase
(0–200)% of IBase
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Off
NoRestart
Restart
IEC 61850 IEC 60617
identification identification
ZCRWPSCH
Section 13
M16038-1 v14
Accuracy
-
±5.0% of ΔU
±5.0% of ΔI
±10.0% of Δ3U0
±10.0% of Δ3I0
±0.2% or ±15 ms
whichever is greater
±0.2% or ±45 ms
whichever is greater
±0.2% or ±15 ms
whichever is greater
-
IP15751-1 v4
M15073-1 v5
ANSI/IEEE C37.2
device number
- 85
M13896-3 v15
409