ABB Relion REL650 Series Product Manual page 82

Line distance protection REL650
Version 2.2
Scheme communication
Table 63. 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 64. Current reversal and weak-end infeed logic for distance protection Current reversal and WEI logic for distance protection, 3-phase
ZCRWPSCH
Function
Operating mode of WEI logic
Detection level phase-to-phase
and phase-to-neutral voltage
Reset ratio
Operate time for current reversal
logic
Delay time for current reversal
Coordination time for weak-end
infeed logic
Table 65. Scheme communication logic for residual overcurrent protection ECPSCH
Function
Scheme type
Communication scheme
coordination time
82
M16038-1 v15
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
M16039-1 v16
Range or value
Off
Echo
Echo & Trip
(10-90)% of UBase
<105%
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
M16049-1 v10
Range or value
Permissive Underreaching
Permissive Overreaching
Blocking
(0.000-60.000) s
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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
-
Accuracy
-
±0.5% of U
r
-
±0.5% ±10 ms
±0.5% ± 10 ms
±0.5% ±10 ms
Accuracy
-
±0.2% or ±20 ms whichever is greater
1MRK 506 384-BEN H
Hitachi Power Grids