ABB REF 542plus - HMI features; Control area

Feeder Terminal REF 542plus
1MRS756269
Technical data (cont´d)
13
67 Overcurrent directional high I>> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
Direction = backward, forward
67 Overcurrent directional low I>> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
Direction = backward, forward
Earth fault (1)
51N Earth-fault high I
0
>> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
51N Earth-fault low I
0
> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
51N IDMT Earth-fault IDMT Inverse time characteristics: Normal, Very, Extreme or
Long-time inverse
I
e
= 0.05 - 40.00 x I
n
K = 0.05 - 1.5
67N Earth-fault directional, high I
0
>> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
U
0
= 0.02 - 0.70 x U
n
Direction = forward, backward
Net type = isolated (sin ϕ), earthed (cos ϕ)
67N Earth-fault directional, low I
0
> = 0.050 - 40.000 x I
n
t = 40 - 30 000 ms
U
0
= 0.02 - 0.70 x U
n
Direction = forward, backward
Net type = isolated (sin ϕ), earthed (cos ϕ)
67S Earth-fault directional, sensitive I
0
= 0.050 - 2.000 x I
n
t = 100 - 10 000 ms
Angle alpha = 0.0 - 20.0
o
Angle delta = -180.0
o
- +180.0
o
U
0
= 0.05 - 0.70 x U
n
67N Sector Earth-fault directional, sector
(10 thresholds available)
Direction = enable/disable directional behavior
Start criteria = neutral current magnitude/
neutral current basic angle
I
0
= 0.002 - 8.000 x I
n
U
0
= 0.004 - 0.700x U
n
t = 30 - 60 000 ms
Sector basic angle = -180.0
o
- +180.0
o
Sector width = 0.0 - 360.0
o
I
0
drop off delay = 0 - 1.000 ms
U
0
drop off delay = 0 - 1.000 ms
Voltage protective functions
59 Overvoltage, instantaneous U>>> = 0.100 - 3.000 U
n
t = 15 - 300 000 ms
59 Overvoltage, high U>> = 0.100 - 3.000 U
n
t = 40 - 30 000 ms
59 Overvoltage, low U> = 0.100 - 3.000 U
n
t = 40 - 30 000 ms
27 Undervoltage, instantaneous U<<< = 0.10 - 1.20 U
n
t = 15 - 30 000 ms
27 Undervoltage,high U<< = 0.10 ... 1.20 U
n
t = 40 - 30 000 ms
27 Undervoltage, low U< = 0.10 - 1.20 U
n
t = 40 - 30 000 ms
25 Synchronism check Delta Voltage = 0.02 - 0.40 U
n
Delta phase = 5 - 50°
Time = 0.20 - 1000.00 s
59N Residual overvoltage, high U
NE
> = 0.05 - 3.00 U
n
t = 20 - 300 000 ms
59N Residual overvoltage, low U
NE
> = 0.05 - 3.00 U
n
t = 20 - 300 000 ms
Table 6: ANSI code protection functions and parameters