ABB Relion 670 Series Technical Reference Manual page 801

1MRK505222-UUS C
13.1.5
Table 421: ZCPSCH (85) Group settings (basic)
Name Values (Range)
Operation Disabled
Enabled
SchemeType Disabled
Intertrip
Permissive UR
Permissive OR
Blocking
tCoord 0.000 - 60.000
tSendMin 0.000 - 60.000
Table 422: ZCPSCH (85) Group settings (advanced)
Name Values (Range)
Unblock Disabled
NoRestart
Restart
tSecurity 0.000 - 60.000
13.1.6
Technical reference manual
Setting parameters
Unit Step
- -
- -
s 0.001
s 0.001
Unit Step
- -
s 0.001
Technical data
Table 423: ZCPSCH (85) technical data
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
Scheme communication
Default Description
Disabled Disable/Enable Operation
Permissive UR Scheme type
0.035 Communication scheme channel coordination
time
0.100 Minimum duration of a carrier send signal
(carrier continuation)
Default Description
Disabled Operation mode of unblocking logic
0.035 Security timer for loss of carrier guard detection
Range or value
Intertrip
Permissive Underreach
Permissive Overreach
Blocking
(0.000-60.000) s
(0.000-60.000) s
(0.000-60.000) s
Disabled
NoRestart
Restart
Section 13
Accuracy
-
± 0.5% ± 10 ms
± 0.5% ± 10 ms
± 0.5% ± 10 ms
-
795