2-58
ALPS Advanced Line Protection System
GE Power Management
2.5 REFERENCE TABLES
2 CALCULATION OF SETTINGS
2
310
‡
Z3RGREACH
Z3 Resistive Ground Reach
0.01 to 100 ohms
step 0.01
0.05 to 500 ohms
step 0.05
18
Ω
at 5A
90
Ω
at 1A
Z4DISTANCE
401
Z4PHASE
Z4 Phase Distance
NO, YES
YES
402
Z4PHREACH
Z4 Phase Reach
0.01 to 50.0 ohms
step 0.01
0.05 to 250.0 ohms
step 0.05
18.0
Ω
at 5A
90.0
Ω
at 1A
403
Z4PCHARANG
Z4 Phase Characteristic Angle
80 to 120 deg. step 5
90 deg.
404
Not Used
405
Z4GRND
Z4 Ground Distance
NO, YES
YES
406
Z4GRDREACH
Z4 Ground Reach
0.01 to 50.0 ohms
step 0.01
0.01 to 250.0 ohms
step 0.05
18.0
Ω
at 5A
90.0
Ω
at 1A
407
Z4GCHARANG
Z4 Ground Characteristic Angle
80 to 155 deg., step 5
90 deg.
408
Z4DIRECTN
Z4 Direction
FORWRD, REVERS
FORWRD
409
Z4_TIMERS
Z4 Timers
NO, YES
YES
410
Z4P_TIME
Z4 Phase Timer
0.10 to 10.0 sec. step 0.01
3.0 sec.
411
Z4G_TIME
Z4 Ground Timer
0.10 to 10.0 sec. step 0.01
3.0 sec.
412
‡
Z4GRDCHAR
Z4 Ground Characteristic
MHO, QUAD
MHO
413
‡
Z4RGREACH
Z4 Resistive Ground Reach
0.01 to 100 ohms
step 0.01
0.05 to 500 ohms
step 0.05
135
Ω
at 1A
27
Ω
at 5A
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 to 5.0 amps
step 0.01
0.10 to 1.0 amps
step 0.01
0.75 A at 5A
0.15 A at 1A
504
IPB_PICKUP
GDOC Block Current
0.25 to 3.75 amps
step 0.01
0.05 to 0.75 amps
step 0.01
0.25 A at 5A
0.05 A at 1A
505
IPBKFACTOR
IPB I1 Restraint
0.0, 0.066
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
0.05
Ω
at 5A
0.25
Ω
at 1A
507
UNBALALARM
Unbalanced Current Alarm
NO, YES
YES
OVERCURRNT
601
50
Phase Instantaneous Overcurrent
NO, YES
NO
602
50_DIRCNL
Directional Control of 50
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
YES
606
50G_DIRCNL
Directional Control of 50G
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
0.3
610
51G
Ground Time Overcurrent
NO, YES
YES
611
51G_DIRCNL
Directional Control of 51G
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
Table 2–11: PROTECTION SETTINGS GUIDE (Sheet 2 of 7)
NO.
MNEMONIC
DESCRIPTION
RANGE (5A)
RANGE (1A)
DEFAULT
† Setting value QUAD applies to Revision B models only.
‡ Setting applicable to Revision B models only.
^ Setting applicable to Single Phase Tripping models only.