L2275
Emax UL
89/132
Doc. N°
Mod.
RH0109002
Apparatus
Scale
Page N°
(1)
The minimum value of this trip is 750ms regardless of the type of curve set
(self-protection).
(2)
“Minimum time”: minimum time which can be taken by the protection (see par.
11.1.2)
(3)
ABB SACE respects the NEC standard, guaranteeing that the maximum
selectable value of ground fault current (I4) does not exceed the value of 1200A.
The range of threshold I4 adjustment allowed is automatically decreased,
according to the type of power circuit breaker selected, so that the following
condition is respected: [(I4 x In) ??1200A].
(4)
These tolerances are valid in the following hypotheses:
- trip unit self-supplied during running (without start-up)
- two-phase or three-phase power supply
For all cases not considered in the above hypotheses, the following tolerance
values are valid:
L
(t=k/I
2
)
*
*
*
*
#
0.4xIn
≤
I
1
≤
1xIn
3s
≤
t
1
≤
144s,
± 10% in accordace with
± 10%, I
f
< 4xIn
step 0.01xIn
step 3s
(1)
ANSI 37.17
± 20%, I
f
>
4xIn
S
#
*
#
#
*
0.6xIn
≤
I
2
≤
10xIn
Min
(2)
, 0.05s
≤
t
2
≤
0.40s,
± 7%, I
f
< 4xIn
The best of the two data:
step 0.01s
± 10% o ± 50ms, I
f
< 4xIn
(t=k)
step 0.1xIn
tpgr, 0.04s
≤
t
2sel
≤
0.40s,
± 10%, I
f
>
4xIn
± 15% o ± 50ms, I
f
>4xIn
step 0.005s
S
#
*
*
*
#
0.6xIn
≤
I
2
≤
10xIn
0.05s
≤
t
2
≤
0.40s,
± 7%, I
f
< 4xIn
± 15%, I
f
< 4xIn
(t=k/I
2
)
step 0.1xIn
step 0.01 In
± 10%, I
f
>
4xIn
± 20%, I
f
>
4xIn
I
#
*
*
#
*
1.5xIn
≤
I
3
≤
15xIn
± 10%, I
f
< 4xIn
< 25ms
(t=k)
step 0.1xIn
Instantaneous
± 15%, I
f
>
4xIn
G
#
#
#
#
*
0.2xIn
≤
I
4
≤
1xIn
(3)
0.1s
≤
t
4
≤
0.4s,
The best of the two data:
step 0.05s
± 7%, I
f
< 4xIn
± 10% o ± 50ms, I
f
< 4xIn
(t=k)
step 0.02xIn
tpgr, 0.04s
≤
t
4sel
≤
0.40s,
step 0.005s
G
#
#
*
*
*
0.2xIn
≤
I
4
≤
1xIn
(3)
0.1s
≤
t
4
≤
0.4s,
± 7%, I
f
< 4xIn
± 15%
(t=k/I
2
)
step 0.02xIn
step 0.05s
D
#
*
#
#
*
0.6xIn
≤
I
7
≤
10xIn
0.20s
≤
t
7
≤
0.75s,
step 0.01s
(t=k)
step 0.1xIn
tpgr, 0.13s
≤
t
2sel
≤
0.50s,
step 0.01s
± 10%
± 20%
U
#
#
*
*
*
10%
≤
I
6
≤
90%
0.5s
≤
t
6
≤
60s,
± 10%
± 20%
(t=k)
step 10%
step 0.5s
O T
*
#
*
*
*
Only settable by ABB
Instantaneous
± 1°C
—-
(temp=k)
K
#
*
*
*
*
0.5xI1
≤
(I
c1,
I
c2
)
≤
1.0xI1
t
c1
≤
t
1
/ 4
± 10%
± 20%
(Open1-Open2)
step 0.01xI1
t
c2
=
t
1
/ 2
K
#
*
*
*
*
0.5xI1
≤
(I
c1,
I
c2
)
≤
1.0xI1
10s
≤
t
c1
≤
120s
± 10%
± 20%
(Closed1-Open1)
step 0.01xI1
step 5s, t
c2
≤
t
1
/ 2
UV
#
*
*
*
*
0.6xUn
≤
V
8
≤
0.95xUn
0.1s
≤
t
8
≤
5s,
± 5%
± 20%
(t=k)
step 0.01xUn
step 0.1s
OV
#
*
*
*
*
1.05xUn
≤
V
9
≤
1.2xUn
0.1s
≤
t
9
≤
5s,
± 5%
± 20%
(t=k)
step 0.01xUn
step 0.1s
RV
#
*
*
*
*
0.1xUn
≤
V
10
≤
0.4xUn
0.5s
≤
t
10
≤
30s,
± 5%
± 20%
(t=k)
step 0.05 Un
step 0.5s
RP
#
*
*
*
*
-0.3xPn
≤
P
11
≤
-0.1xPn
0.5s
≤
t
11
≤
25s,
± 10%
± 20%
(t=k)
step 0.02 Pn
step 0.1s
Iinst
*
*
*
*
*
Only settable by ABB
Instantaneous
± 5%
—-
Protection
Disabling
Disabling of
TRIP only
Zone se
lectivity
Start-up threshold
Thermal memory
Threshold
Range
Time
Range
Toleranceth
reshold (4)
Time
Tolerance (4)
Trip threshold
Trip time
L
± 10% (according to ANSI 37.17 Standard)
± 20%
S
± 10%
± 20%
I
± 15%
≤
60ms
G
± 10%
± 20%
