Scheme Communication Logic For Distance Or Overcurrent Protection; Phase Segregated Scheme Communication Logic For Distance Protection - ABB RED670 Product Manual

Line differential protection RED670 2.1 IEC
Product version: 2.1
Scheme communication
Table 78. Scheme communication logic for distance or overcurrent protection ZCPSCH
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
Table 79. Phase segregated scheme communication logic for distance protection ZC1PPSCH
Function
Scheme type
Co-ordination time for blocking
communication scheme
Minimum duration of a carrier send
signal
Table 80. Current reversal and weak-end infeed logic for phase segregated communication ZC1WPSCH
Function
Detection level phase to neutral
voltage
Detection level phase to phase
voltage
Reset ratio
Operate time for current reversal
Delay time for current reversal
Coordination time for weak-end
infeed logic
88
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
Range or value
Intertrip
Permissive UR
Permissive OR
Blocking
(0.000-60.000) s
(0.000-60.000) s
Range or value
(10-90)% of UBase
(10-90)% of UBase
<105% at (20-90)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Accuracy
-
±5.0% of ΔU
±5.0% of ΔI
±10.0% of Δ3U0
±10.0% of Δ3I0
±0.5% ±10 ms
±0.5% ±10 ms
±0.5% ±10 ms
-
Accuracy
-
±0.2% or ±15 ms whichever is greater
±0.2% or ±15 ms whichever is greater
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
1MRK 505 346-BEN -
ABB