ABB REG650 Technical Manual page 74

Section 5
Differential protection
Name
I2/I1Ratio
I5/I1Ratio
CrossBlockEn
NegSeqDiffEn
IMinNegSeq
NegSeqROA
SOTFMode
IDiffAlarm
tAlarmDelay
Table 19: T3WPDIF Non group settings (basic)
Name
GlobalBaseSelW1
GlobalBaseSelW2
GlobalBaseSelW3
ConnectTypeW1
ConnectTypeW2
ConnectTypeW3
ClockNumberW2
Table continues on next page
68
Values (Range) Unit
5.0 - 100.0 %
5.0 - 100.0 %
Off -
On
Off -
On
0.02 - 0.20 IB
30.0 - 90.0 Deg
Off -
On
0.05 - 1.00 IB
0.000 - 60.000 s
Values (Range) Unit
1 - 6 -
1 - 6 -
1 - 6 -
WYE (Y) -
Delta (D)
WYE (Y) -
Delta (D)
WYE (Y) -
Delta (D)
0 [0 deg] -
1 [30 deg lag]
2 [60 deg lag]
3 [90 deg lag]
4 [120 deg lag]
5 [150 deg lag]
6 [180 deg]
7 [150 deg lead]
8 [120 deg lead]
9 [90 deg lead]
10 [60 deg lead]
11 [30 deg lead]
Step Default
0.1 15.0
0.1 25.0
- On
- On
0.01 0.04
0.1 60.0
- On
0.01 0.20
0.001 10.000
Step Default
1 1
1 1
1 1
- WYE (Y)
- WYE (Y)
- Delta (D)
- 0 [0 deg]
1MRK 502 034-UEN -
Description
Maximum ratio of 2nd harmonic to
fundamental harmonic differential current
Maximum ratio of 5th harmonic to
fundamental harmonic differential current
Operation Off/On for cross-block logic
between phases
Operation Off/On for negative sequence
differential function
Minimum negative sequence current
Operate angle for internal/external
negative sequence fault discriminator
Operation mode for switch onto fault
function
Differential current alarm, multiple of
base current, usually W1 current
Time delay for differential current alarm
Description
Selection of one of the Global Base
Value groups, winding 1
Selection of one of the Global Base
Value groups, winding 2
Selection of one of the Global Base
Value groups, winding 3
Connection type of winding 1: Y-wye or D-
delta
Connection type of winding 2: Y-wye or D-
delta
Connection type of winding 3: Y-wye or D-
delta
Phase displacement between W2 &
W1=HV winding, hour notation
Technical Manual