GE P54E - Page 736

Appendix B - Settings and Signals
P54A/B/C/E
B170
P54xMED-TM-EN-1
MENU TEXT COL ROW DEFAULT SETTING AVAILABLE OPTIONS
DESCRIPTION
If Ph Diff Stub Bus is enabled, DDB input signal Stub Bus Enabled is energised and phase current is measured above Ph Is1 Stub Bus setting,
the IED will issue a Stub Bus Trip
Ph Is1 StubBus 33 84 2.0*l1
From 0.1*l1 to 12*l1 in steps of 0.01*l1
[Courier Number (current)]
The threshold of operation as there is no effective bias when operating in this mode.
Phase Is1 CTS 33 85 1.2*l1
From 0.2*I1 to 4*I1 in steps of 0.05*I1
[Courier Number (current)]
Setting that defines the minimum pick-up level of the IED when a current transformer supervision CTS is declared
TRIP ON CLOSE
33
96
Trip on Close/SOTF Sub Heading
SOTF Status 33 97 Enabled PoleDead
Disabled
Enabled PoleDead
Enabled ExtPulse
En Pdead + Pulse
[Indexed String]
Setting that enables note (turns on) or disables (turns off) a special protection logic which can apply upon line energization. SOTF = Switch
on to Fault.
Note: SOTF can be enabled in three different manners:
1. Enabled Pole Dead. By using pole dead logic detection logic
2. Enabled ExtPulse. By using an external pulse
3. En Pdead + Pulse. By using both
SOTF Delay 33 98 110
From 0.2 to 1000 in steps of 0.05
[Courier Number (time-seconds)]
The SOTF Delay is a pick up time delay that starts after opening all 3 poles of a CB. If the CB is then closed after the set time delay has
expired, SOTF protection will be active. SOTF provides enhanced protection for manual closure of the breaker (not for auto-reclosure).
This setting is visible only if Pole Dead or Pdead + Pulse are selected to enable SOTF.
TOR Status 33 99 Enabled
Disabled
Enabled
[Indexed String]
Setting that enables (turns on) or disables (turns off) special protection following
auto-reclosure. When set Enabled, TOR will be activated after the ‘TOC Delay’ has expired, ready for application when an auto-reclose shot
occurs. TOR = Trip on (auto)Reclose.
TOC Reset Delay 33 9A 0.5
From 0.1 to 2s in steps of 0.1
[Courier Number (time-seconds)]
The TOC Reset Delay is a user settable time window during which TOC protection is available. The time window starts timing upon CB closure
and it is common for SOTF and TOR protection. Once this timer expires after a successful (re)closure, all protection reverts to normal.
SOTF Pulse 33 9B 0.5
From 0.1 to 10s in steps of 0.01
[Courier Number (time-seconds)]
The SOTF Pulse is a user settable time window during which the SOTF protection is available. This setting is visible only if ExtPulse or Pdead +
Pulse are selected to enable SOTF
TOC Delay 33 9C 0.2
From 0.05 to 0.2 in steps of 0.01
[Courier Number (time-seconds)]
The TOC Delay is a user settable time delay following the CB opening after which the TOR becomes active (enabled). The time must be set in
conjunction with the Dead Time setting of the Auto-reclose so that the setting must not exceed the minimum Dead Time setting since both
timers start instantaneously.
GROUP 1:
OVERCURRENT
35 00
This column contains settings for Overcurrent
I>1 Status 35 01 Enabled
Disabled
Enabled
Enabled VTS
Enabled Ch Fail
En VTSorCh Fail
En VTSandCh Fail
[Indexed String]
Setting that defines first stage overcurrent operating status. Depending on this setting, I>1 will be enabled permanently or in case of Voltage
Transformer Supervision (fuse fail) operation
I>1 Status 35 01 Enabled
Disabled
Enabled
Enabled VTS
Enabled Ch Fail