GE MiCOM P40 Technical Manual page 869

P446SV
MENU TEXT
Zone 1 Gnd. PSB
Setting that defines the Z1 ground element operation should any swing impedance enter and remains inside the Z1 ground characteristic for
more then 'tZ1 Gnd. Delay'.
If Blocking is selected, the Z1 ground element operation will be disabled for the duration of the swing.
If Unblocking is chosen, the Z1 ground element block will be removed after drop off timer 'PSB Unblocking Dly' has expired, even if the swing
is still present. This allows system separation when swings fail to stabilize.
In 'Allow trip' mode, the Z1 ground element is unaffected by PSB detection.
Zone 2 Gnd. PSB
Setting that defines the Z2 ground element operation should any swing impedance enter and remains inside the Z2 ground characteristic for
more then 'tZ2 Gnd. Delay'.
If Blocking is selected, the Z2 ground element operation will be disabled for the duration of the swing.
If Unblocking is chosen, the Z2 ground element block will be removed after drop off timer 'PSB Unblocking Dly' has expired, even if the swing
is still present. This allows system separation when swings fail to stabilize.
In 'Allow trip' mode, the Z2 ground element is unaffected by PSB detection.
Zone 3 Gnd. PSB
Setting that defines the Z3 ground element operation should any swing impedance enter and remains inside the Z3 ground characteristic for
more then 'tZ3 Gnd. Delay'.
If Blocking is selected, the Z3 ground element operation will be disabled for the duration of the swing.
If Unblocking is chosen, the Z3 ground element block will be removed after drop off timer 'PSB Unblocking Dly' has expired, even if the swing
is still present. This allows system separation when swings fail to stabilize.
In 'Allow trip' mode, the Z3 ground element is unaffected by PSB detection.
Zone P Gnd. PSB
Setting that defines the ZP ground element operation should any swing impedance enter and remains inside the ZP ground characteristic for
more then 'tZP Gnd. Delay'.
If Blocking is selected, the ZP ground element operation will be disabled for the duration of the swing.
If Unblocking is chosen, the ZP ground element block will be removed after drop off timer 'PSB Unblocking Dly' has expired, even if the swing
is still present. This allows system separation when swings fail to stabilize.
In 'Allow trip' mode, the ZP ground element is unaffected by PSB detection.
Zone 4 Gnd. PSB
Setting that defines the Z4 ground element operation should any swing impedance enter and remains inside the Z4 ground characteristic for
more then 'tZ4 Gnd. Delay'.
If Blocking is selected, the Z4 ground element operation will be disabled for the duration of the swing.
If Unblocking is chosen, the Z4 ground element block will be removed after drop off timer 'PSB Unblocking Dly' has expired, even if the swing
is still present. This allows system separation when swings fail to stabilize.
In 'Allow trip' mode, the Z4 ground element is unaffected by PSB detection.
PSB Unblocking
To enable (activate) or disable (turn off) the PSB Unblocking delay timer.
This setting is common to all zones and it is visible if any distance zone is set to 'PSB Unblocking Dly'. For swing durations longer than this
setting, blocking can be selectively removed.
PSB Unblock dly
Unblock timer setting - on expiry, power swing blocking can optionally be removed.
PSB Reset Delay
Setting to maintain the power swing detection for a period after the delta current detection has reset. ΔI will naturally reset momentarily
P446SV-TM-EN-1
COL ROW DEFAULT SETTING
3D 0D Blocking
3D 0F Blocking
3D 11 Blocking
3D 13 Blocking
3D 15 Blocking
3D 20 Disabled
3D 21 2
3D 22 0.2
DESCRIPTION
Allow Trip
Blocking
Delayed Unblock
[Indexed String]
Allow Trip
Blocking
Delayed Unblock
[Indexed String]
Allow Trip
Blocking
Delayed Unblock
[Indexed String]
Allow Trip
Blocking
Delayed Unblock
[Indexed String]
Allow Trip
Blocking
Delayed Unblock
[Indexed String]
Disabled
Enabled
[Indexed String]
From 0.1 to 10 in steps of 0.1
[Courier Number (time-seconds)]
From 0.05 to 2 in steps of 0.05
[Courier Number (time-seconds)]
Appendix B -Settings and Signals
AVAILABLE OPTIONS
B123