ABB RELION 670 Series Product Manual page 79

Bay control REC670 2.1 IEC
Scheme communication
Table 61. 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 62. Current reversal and weak-end infeed logic for distance protection ZCRWPSCH
Function
Detection level phase-to-
neutral voltage
Detection level phase-to-phase
voltage
Operate time for current
reversal logic
Delay time for current reversal
Coordination time for weak-
end infeed logic
Table 63. Scheme communication logic for residual overcurrent protection ECPSCH
Function
Scheme type
Communication scheme
coordination time
ABB
M16038-1 v11
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
(10-90)% of UBase
(10-90)% of UBase
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
M16049-1 v9
Range or value
Permissive Underreaching
Permissive Overreaching
Blocking
(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
±0.5% 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
Accuracy
-
±0.2% or ±20 ms whichever is greater
1MRK 511 361-BEN D
79