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LPS-O Line Protection System GE Power Management
2.5 REFERENCE TABLES 2 CALCULATION OF SETTINGS
2
CURVSUPVISN
501 IT_PICKUP Trip Supervision Current 0.20 to 4.0 amps
step 0.01
0.04 to 0.8 amps
step 0.01
0.20 A at 5A
0.04 A at 1A
502 IB_PICKUP Block Supervision Current 0.20 to 4.0 amps
step 0.01
0.04 to 0.8 amps
step 0.01
0.20 A at 5A
0.04 A at 1A
503
IPT_PICKUP
*
GDOC Trip Current 0.50 amps fixed 0.10 amps fixed 0.50 A at 5A
0.10 A at 1A
504
IPB_PICKUP
*
GDOC Block Current 0.25 amps fixed 0.05 amps fixed 0.25 A at 5A
0.05 A at 1A
505
IPBKFACTOR
*
IPB I1 Restraint 0.0 fixed 0.0 fixed 0.0
506 NT_OFFSET NT/NB Offset 0.0 to 20.0 ohms
step 0.01
0.0 to 100 ohms
step 0.01
0.05Ω at 5A
0.25Ω at 1A
507
UNBALALARM
Unbalanced Current Alarm NO, YES NO, YES YES
OVERCURRNT
601 50 Phase Instantaneous
Overcurrent
NO, YES NO, YES NO
602 50DIRCNL Directional Control of 50 NO, YES NO, YES YES
603 50PICKUP 50 Pickup Setting 2.0 to 160.0 amps
step 0.1
0.4 to 32.0 amps
step 0.1
20.0 A at 5A
4.0A at 1A
604 50PICKUPFF 50 Pickup during fuse failure 2.0 to 160.0 amps
step 0.1
0.4 to 32.0 amps
step 0.1
30.0 A at 5A
6.0 A at 1A
605 50G Ground Instantaneous
Overcurrent
NO, YES NO, YES YES
606
50G_DIRCNL
Directional Control of 50G NO, YES NO, YES YES
607 50GPICKUP 50G Pickup Setting 0.5 to 80.0 amps
step 0.1
0.1 to 16.0 amps
step 0.1
10.0 A at 5A
2.0 A at 1A
608 50GPCKPFF 50G Pickup during fuse
failure
0.5 to 80.0 amps
step 0.1
0.1 to 16.0 amps
step 0.1
15.0 A at 5A
3.0A at 1A
609 50GRESTNT 50G Restraint Setting 0.0, 0.3 0.0, 0.3 0.3
610 51G Ground Time Overcurrent NO, YES NO, YES YES
611 51G_DIRCNL Directional Control of 51G NO, YES NO, YES YES
612 51GPICKUP 51G Pickup Setting 0.20 to 15.0 amps
step 0.01
0.04 to 3.0 amps
step 0.01
1.0 A at 5A
0.2 A at 1A
613 51GPCKUPFF 51G Pickup during fuse
failure
0.20 to 15.0 amps
step 0.01
0.04 to 3.0 amps
step 0.01
2.0 A at 5A
0.4 A at 1A
614 51GCURVE 51G Curve INV, V-INV, E-INV,
CUSTOM, DEFT
INV, V-INV, E-INV,
CUSTOM, DEFT
V-INV
Table 2–7: PROTECTION SETTINGS GUIDE (Sheet 2 of 7)
No.
Mnemonic
Description Range (5A) Range (1A) Default
see TABLE NOTES on page 2–43 for footnote explanation
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