Specifications
L2234
L2778
L4681
L5179
Emax
92/161
Doc. no.
Model
Apparatus
Scale
Page No
1SDH000460R0002
L5439
Protection
Disabling
Disabling TRIP only
Zone selectivity
Start-up threshold
Thermal memory
Threshold
range
Time
range
Threshold
tolerance
(2)
Time
Tolerance
(2)
U
(t=k)
2% I
6
90%
step 1%
0,5 s t
6
60 s, step 0,5 s ± 10%
The best of
the two data
± 10% o 40 ms
OT
(temp=k)
Fixed, defined by
ABB SACE
Instantaneous ± 5°C
Iinst
Automatic, defined by
ABB SACE
Instantaneous
UV
(t=k)
0,5xUn ≤ U
8
≤
0,95xUn
step 0,01xUn
0,1 s t
8
5 s, step 0,1 s ± 5%
The best of
the two data
± 10% o 40 ms
OV
(t=k)
1,05xUn ≤ U
9
≤
1,2xUn
step 0,01xUn
0,1 s t
9
5 s, step 0,1 s ± 5%
The best of
the two data
± 10% o 40 ms
RV
(t=k)
0,1xUn ≤ U
10
≤ 0,4xUn
step 0,05 Un
0,5 s t
10
30 s, step 0,5 s ± 5%
The best of
the two data
± 10% o 40 ms
RP
(t=k)
- 0,3xPn ≤ P
11
≤
-0,1xPn
step 0,02 Pn
0,5 s t
11
25 s, step 0,1 s ± 5%
The best of
the two data
± 10% o 40 ms
UF
0,9fn ≤ f
12
≤ 0,99fn
step 0,01 fn
0,5 s t
12
3 s, step 0,1 s ± 5%
The best of
the two data
± 10% o 40 ms
OF
1,01fn ≤ f
13
≤ 1,1fn
step 0,01 fn
0,5 s t
13
3 s, step 0,1 s ± 5%
The best of
the two data
± 10% o 40 ms
LC1/LC2
loads
control
50%100%
step 1%xI
1
Warning Iw
0,310I
n
step 0,05xI
n
± 10% 1040 ms
(1)
The minimum value of this trip is 1s regardless of the type of curve set
(self-protection).
(2)
These tolerances are based on the following assumptions:
- Self-powered relay (no start-up) with 2 or 3 supplied phases
and/or in presence of auxiliary supply.
- preset trip time ≥ 100 ms.
(3)
no-trip time.
(4)
the protection G is disabled for current values greater than 4In, where I4
< 0.5 In, greater than 6 In, where 0.5 In ≤ I4 < 0.8 In and greater than 8
In where I4≥ 0.8 In.
(6)
See paragraph 16.5.
For all cases not covered by the above hypotheses, the following tolerance
values apply:
Protections Trip threshold Trip time
L
Release between
1,05 e 1,25 x I1
± 20%
S ± 10% ± 20%
I ± 15% 60ms
G ± 10% ± 20%
Others ± 20%