GE LPS-O - Page 80

2-
40
LPS-O Line Protection System GE Power Management
2.5 REFERENCE TABLES 2 CALCULATION OF SETTINGS
2
SCHEMETIMERS
1101 TL5PICKUP BKR1 b sw Coord Timer PU 0 to 200 msec.
step 1
0 to 200 msec.
step 1
50 msec.
1102
TL5DROPOUT
BKR1 b sw Coord Timer DO 0 to 200 msec.
step 1
0 to 200 msec.
step 1
50 msec.
1103 TL6PICKUP BKR2 b sw Coord Timer PU 0 to 200 msec.
step 1
0 to 200 msec.
step 1
50 msec.
1104
TL6DROPOUT
BKR2 b sw Coord Timer DO 0 to 200 msec.
step 1
0 to 200 msec.
step 1
50 msec.
LINEINFO
1201
POSSEQANG Positive Sequence
Impedance Angle
25 to 90 deg.
step 1
25 to 90 deg.
step 1
85 deg.
1202 CTRATIO CT Ratio 1 to 5000
step 1
1 to 5000
step 1
400 for 5A
2000 for 1A
1203 PTRATIO PT Ratio 1 to 7000
step 1
1 to 7000
step 1
3000
1204
TRSFMRTYPE
Transformer Type NONE, YD1, YD5,
YD7, YD11
NONE, YD1, YD5,
YD7, YD11
YD1
OS BLOCKING
1301 MOBZONE Coordinating Zone ZONE2, ZONE3 ZONE2, ZONE3 ZONE3
1302
MOBCHARANG
MOB Characteristic Angle 30 to 130 deg.
step 1
30 to 130 deg.
step 1
70 deg.
1303 BLOCKWHAT Block during OS BLKALL, BLKDIST,
BLKPHAS,
BLKNONE
BLKALL, BLKDIST,
BLKPHAS,
BLKNONE
BLKALL
1304 BLOCKZ1 Block all Zone 1 Functions NO, YES NO, YES YES
1305 BLOCKZ2 Block all Zone 2 Functions NO, YES NO, YES YES
1306 BLOCKZ3 Block all Zone 3 Functions NO, YES NO, YES YES
1307 BLOCKZ4 Block all Zone 4 Functions NO, YES NO, YES YES
OS TRIPPING
1401
USE_OST Select OST NO, YES NO, YES NO
1402 NUMBRCHAR Select Number of
Characteristics
2, 32, 33
1403 TRIPIN_OUT Trip Entering or Leaving Inner IN, OUT IN, OUT OUT
1404 FWDREACH OST Forward Reach 0.1 to 75.0 ohms
step 0.1
0.5 to 375.0 ohms
step 0.5
15.0Ω at 5A
75.0Ω at 1A
Table 2–7: PROTECTION SETTINGS GUIDE (Sheet 4 of 7)
No.
Mnemonic
Description Range (5A) Range (1A) Default
see TABLE NOTES on page 2–43 for footnote explanation