ABB Relion 670 Series Product Manual page 84

Line differential protection RED670 2.0
Product version: 2.0
Scheme communication
Table 72. Scheme communication logic for distance or overcurrent protection ZCPSCH
Function
Scheme type
Co-ordination time for blocking
communication scheme
Minimum duration of a send signal
Security timer for loss of guard signal
detection
Operation mode of unblocking logic
Table 73. 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 74. 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
84
Range or value
Intertrip
Permissive Underreach
Permissive Overreach
Blocking
(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
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Accuracy
-
± 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 ±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
1MRK505310-BEN C
ABB