GE P741

P74x/EN CM/Na7
Commissioning
(CM) 10-70
MiCOM P741, P742, P743
CM
11.2.4 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 BB TRIP CONFIRM
Group 1
Settings
Group 2
Settings
Group 3
Settings
Group 4
Settings
I>BB Current set ________A ________A ________A ________A
IN>BB Current ________A ________A ________A ________A
3100 DEAD ZONE PROT
Group 1
Settings
Group 2
Settings
Group 3
Settings
Group 4
Settings
I>DZ Current Set ________A ________A ________A ________A
I>DZ Time Delay ________s ________s ________s ________s
DZ Earth Fault

Enabled/
 Disabled

Enabled/
 Disabled

Enabled/
 Disabled

Enabled/
 Disabled
IN>DZ Cur. Set ________A ________A ________A ________A
IN>DZ Time Delay ________s ________s ________s ________s
3500 OVERCURRENT
Group 1
Settings
Group 2
Settings
Group 3
Settings
Group 4
Settings
Ι>1 Function
[ ______ ] [ ______ ] [ ______ ] [ ______ ]
with: [1] = Disabled, [2] = DT, [3] = IEC S Inverse, [4] = IEC V Inverse,
[4] = IEC E Inverse, [5] = UK LT Inverse, [6] = IEEE M Inverse,
[7] = IEEE V Inverse, [8] = IEEE E Inverse, [9] = US Inverse,
[10] = US ST Inverse
If visible
Ι>1 Current Set
________A ________A ________A ________A
”
Ι>1 Time Delay
________s ________s ________s ________s
“ I>1 TMS ________ ________ ________ ________
”
Ι>1 Time Dial
________s ________s ________s ________s
”
Ι>1 Reset char

DT
 Inverse

DT
 Inverse

DT
 Inverse

DT
 Inverse
”
Ι>1 tReset
________s ________s ________s ________s
Ι>2 Function
[ ______ ] [ ______ ] [ ______ ] [ ______ ]
with: [1] = Disabled, 87BBP&N blocking, [2] = High Set I>2,
[3] = I>2 & 87BBP&N, [4] = 87BB/P blocking, [5] = 87BB/N blocking,
[6] = I>2 & 87BB/P, [7] = I>2 & 87BB/N
If visible
Ι>2 Current Set
________A ________A ________A ________A
Ι>2 Time Delay
________s ________s ________s ________s
Block Drop-off ________s ________s ________s ________s