GE P444 User Manual

Setting
P44x/EN ST/Hb
6
MiCOM P40 Agile
P442, P444 (ST) 4-
67
Menu text Default setting
Setting range
Step size
Min Max
GROUP 1 – SYSTEM CHECK
C/S Check Scheme for Man
CB
111 Bit 0: Live Bus / Dead Line,
Bit 1: Dead Bus / Live Line,
Bit 2: Live Bus / Live Line.
Check synchronism scheme for Manual CB Closure. At least, one condition must be
selected to activate the synchronism check logic. The Dead Bus / Dead Line can only be
created using PSL.
The check synchronism condition is only taken into account if a SOTF condition has been
enabled. Otherwise, a dedicated PSL can be created using DDB (live line or live bus/dead
line) – live/live cannot be managed – in that case.
V< Dead Line 13V 5V 30V 1V
V> Live Line 32V 30V 120V 1V
V< Dead Bus 13V 5V 30V 1V
V> Live Bus 32V 30V 120V 1V
The Live Line and Dead Line settings define the thresholds which dictate whether or not the
line or bus is determined as being live or dead by the relay logic.
Diff Voltage 6.5V 0.5V 40V 0.1V
Differential voltage between Line VT and Busbar VT measurements.
Diff Frequency 0.05Hz 0.02Hz 1Hz 0.01Hz
Differential frequency between Line VT and Busbar VT measurements.
Diff Phase 20° 5° 90° 2.5°
Differential voltage between Line VT and Busbar VT measurements.
Bus-Line Delay 0.2s 0.1s 2s 0.1s
Bus Line time delay: The Check synchronism is not verified when ‘V> Live Bus’, ‘V> Live
Line’, ‘Diff Voltage’, ‘Diff Frequency’ or ‘Diff Phase’ threshold is exceeded for longer than
‘Bus-Line delay’ time-delay.
3.17 Autorecloser (“autoreclose” menu)
Menu text Default setting
Setting range
Step size
Min Max
GROUP 1 – AUTORECLOSE
The ‘A/R TPAR Enable’ or ‘A/R SPAR Enable’ opto inputs (assigned in the PSL) have
priority and enables or disables the single or three poles autoreclose function.
Otherwise, set ‘A/R Single Pole’ and ‘A/R Three pole’ (‘CB Control’ menu) to enable
Autoreclose.
AUTORECLOSE MODE

GE P444 Specifications

General

Brand	GE
Model	P444
Category	Protection Device
Language	English