GE P742

P74x/EN CM/Na7
Commissioning
(CM) 10-56
MiCOM P741, P742, P743
CM
11.1.4 Protection settings
GROUP 1 PROTECTION SETTINGS
For Group 2, 3 or 4 the first address figure must be respectively: “5 and 6”, “7and 8” or “9
and A”
3000 DIFF BUSBAR PROT
Group 1
Settings
Group 2
Settings
Group 3
Settings
Group 4
Settings
Differential phase fault configuration
CZ Parameters
Phase Slope kCZ ________% ________% ________% ________%
IDCZ>2 Current ________A ________A ________A ________A
Zone Parameters
Phase Slope k2 ________% ________% ________% ________%
ID>2 Current ________A ________A ________A ________A
Common
ID>1 Current ________A ________A ________A ________A
Phase Slope k1 ________% ________% ________% ________%
ID>1 Alarm Timer
________s ________s ________s ________s
Sensitive earth fault element
Diff. Earth Fault

Enabled/
 Disabled

Enabled/
 Disabled

Enabled/
 Disabled

Enabled/
 Disabled
If visible Ibias Ph> Cur. ________A ________A ________A ________A
CZ Parameters
If visible Earth Slope kNCZ ________% ________% ________% ________%
If visible IDNCZ>2 Current ________A ________A ________A ________A
Zone parameters
If visible Earth Slope kN2 ________% ________% ________% ________%
If visible IDN>2 Current ________A ________A ________A ________A
Common
If visible IDN>1 Current ________A ________A ________A ________A
If visible Earth Slope kN1 ________% ________% ________% ________%
If visible IDN>1 Alarm Timer ________s ________s ________s ________s