GE P743 - Page 111

Settings
P74x/EN ST/N
a7
MiCOM P74
1, P742, P743
(ST) 4-
41
ST
The following lines give the default settings for digital inputs 2 to 32
Menu Text Default Setting Explanation
Digital Input 2 Circt Flt Lck z2 Circuitry fault blocks zone 2 digital channel
Digital Input 3 87BB Blocked digital 87BB Blocked channel
Digital Input 4 Ext Start DR
External start of the disturbance recorder
digital channel
Digital input 5 Earth Fault Earth fault digital channel
Digital input 6 Fault Check zone Fault Check zone digital channel
Digital input 7 Fault phase A Fault phase A digital channel
Digital input 8 Fault phase B Fault phase B digital channel
Digital input 9 Fault phase C Fault phase C digital channel
Digital input 10 Flt 87BB zone 1 Fault 87BB zone 1 digital channel
Digital input 11 Flt 87BB zone 2 Fault 87BB zone 2 digital channel
Digital input 12 Manual Start DR
Manual start of the disturbance recorder
digital channel
Digital input 13 Topo/Set Changed Topology or setting changed digital channel
Digital input 14 Trip Manual zone Manual trip of the zone digital channel
Digital input 15 Trip 50BF zone 1 Trip 50BF zone 1 digital channel
Digital input 16 Trip 50BF zone 2 Trip 50BF zone 2 digital channel
Digital input 17 Trip 87BB zone 1 Trip 87BB zone 1 digital channel
Digital input 18 Trip 87BB zone 2 Trip 87BB zone 2 digital channel
Digital input 19 PU Error Lck z1 PU error blocks zone 1 digital channel
Digital Input 20 PU Error Lck z2 PU error blocks zone 2 digital channel
Digital Input 21 to 32 Unused
The digital channels may be mapped to any of the opto isolated inputs or output contacts,
in addition to a number of internal relay digital signals, such as protection starts, LEDs etc.
Menu Text Default Setting
Setting Range
Step Size
Min. Max.
DISTURB. RECORDER
Manual Trigger No Yes or No
Command to trigger the disturbance recorder. The differential and bias currents recorded
depend of the following settings Zone to record.
Zone to record Zone 1 Zone 1 to zone 8
Any one of the 8 zones can be recorded upon a manual triggering. If 2 or more zones are
selected, the check zone will be recorded