GE Power Management
ALPS Advanced Line Protection System
2-67
2 CALCULATION OF SETTINGS
2.5 REFERENCE TABLES
2
309
Z3GRDCHAR
‡
Z3 Ground Characteristic
MHO, QUAD
310
Z3RGREACH
‡
Z3 Resistive Ground Reach
0.01 to 100 ohms
step 0.01
0.05 to 500 ohms
step 0.05
Z4DISTANCE
401
Z4PHASE
Z4 Phase Distance
NO, YES
402
Z4PHREACH
Z4 Phase Reach
0.01 to 50.0 ohms
step 0.01
0.05 to 250.0 ohms
step 0.05
403
Z4PCHARANG
Z4 Phase Characteristic Angle
80 to 120 deg. step 5
404
Not Used
405
Z4GRND
Z4 Ground Distance
NO, YES
406
Z4GRDREACH
Z4 Ground Reach
0.01 to 50.0 ohms
step 0.01
0.01 to 250.0 ohms
step 0.05
407
Z4GCHARANG
Z4 Ground Characteristic Angle
80 to 155 deg., step 5
408
Z4DIRECTN
Z4 Direction
FORWRD, REVERS
409
Z4_TIMERS
Z4 Timers
NO, YES
410
Z4P_TIME
Z4 Phase Timer
0.10 to 10.0 sec. step 0.01
411
Z4G_TIME
Z4 Ground Timer
0.10 to 10.0 sec. step 0.01
412
‡
Z4GRDCHAR
Z4 Ground Characteristic
MHO, QUAD
413
‡
Z4RGREACH
Z4 Resistive Ground Reach
0.01 to 100 ohms
step 0.01
0.05 to 500 ohms
step 0.05
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
502
IB_PICKUP
Block Supervision Current
0.20 to 4.0 amps
step 0.01
0.04 to 0.8 amps
step 0.01
503
IPT_PICKUP
GDOC Trip Current
0.50 to 5.0 amps
step 0.01
0.10 to 1.0 amps
step 0.01
504
IPB_PICKUP
GDOC Block Current
0.25 to 3.75 amps
step 0.01
0.05 to 0.75 amps
step 0.01
505
IPBKFACTOR
IPB I1 Restraint
0.0, 0.066
506
NT_OFFSET
NT/NB Offset
0.0 to 20.0 ohms
step 0.01
0.0 to 100 ohms
step 0.01
507
UNBALALARM
Unbalanced Current Alarm
NO, YES
OVERCURRNT
601
50
Phase Instantaneous Overcurrent
NO, YES
602
50_DIRCNL
Directional Control of 50
NO, YES
603
50PICKUP
50 Pickup Setting
2.0 to 160.0 amps
step 0.1
0.4 to 32.0 amps
step 0.1
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
605
50G
Ground Instantaneous
Overcurrent
NO, YES
606
50G_DIRCNL
Directional Control of 50G
NO, YES
607
50GPICKUP
50G Pickup Setting
0.5 to 80.0 amps
step 0.1
0.1 to 16.0 amps
step 0.1
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
609
50GRESTNT
50G Restraint Setting
0.0, 0.3
610
51G
Ground Time Overcurrent
NO, YES
611
51G_DIRCNL
Directional Control of 51G
NO, YES
Table 2–13: PROTECTION SETTINGS DATA SHEET (Sheet 2 of 7)
NO.
MNEMONIC
DESCRIPTION
RANGE (5A)
RANGE (1A)
USER
SETTING
† Setting value QUAD applies to Revision B models only.
‡ Setting applicable to Revision B models only.
^ Setting applicable to Single Phase Tripping models only.