ABB SACE Emax 2 Series Operating Instructions Manual page 100

Additional protections
Note on protections
97 | © 2023 ABB | 1SDH001330R1002 - ECN000297030
Protection
Trip time t
[ANSI code]
t = t41 ( with
t
curve t = k )
Gext [50GTD /
51G]
(with curve t =
k / I 2 )
Rc [64 50N TD
t = tdn
87N]
t
t = t41 ( with
t
curve t = k )
MDGF
(with curve t =
k / I )
2
Startup
Protection
Trip time t
[ANSI code]
Gext StartUp t = t41 startup ± 7 %
t
MDGF StartUp t = t41 startup ± 7 %
t
(1) use trip and threshold current values expressed in In for calculating t
In)
with t4 = instantaneous, the maximum tolerance is 50 ms
(2)
Tolerance values valid with Trip unit at steady state or on with auxiliary power supply, trip time ≥
(3)
100 ms, temperature and signals within operating limits; the tolerances in the table after the notes
are applicable if the conditions are not guaranteed
the trip unit considers 3% hysteresis for quitting alarm condition
(4)
(5) tolerance valid for frequencies within range: fn ± 2 %. A ± 5% tolerance is applicable for off range
frequencies
± 20% for threshold 0.4 Hz / s
(6)
maximum trip time
(9)
(10) with If ≥ 18 kA, t ≤ 3 ms;
t
with If < 18 kA and If ≥ I31 * 3, t
with If < 18 kA and If < I31 * 3, t
(operating parameters guaranteed with Vaux auxiliary power supply)
tolerance valid with threshold U14 > 10%; with U14 ≤ 10% (and >6%), the tolerance is 10%; with
(11)
U14 < 5%, the tolerance is 15%
Performance guaranteed in all operating conditions
Protection Trip threshold tolerance
Activation within range: (1.05 to 1.2)
L
x I1
S ± 10 %
I / 2I ± 15 %
G ± 15 %
Gext ± 15 %
MDGF ± 15 %
UF / UF2 /
± 2 %
OF / OF2
RV ± 10 %
Other --
Trip threshold
Trip time tolerance
(1)
tolerance
(3)
t
The best between ± 10% and 40 ms
± 7 %
± 15 %
140 ms @ 0,06 s
-20 % ÷ 0
950 ms @ 0,8 s
The best between ± 10% and 40 ms
± 7 %
± 15 %
Trip threshold
Trip time tolerance
(1)
tolerance
(3)
t
the best between: ± 10 % and ± 40 ms
the best between: ± 10 % and ± 40 ms
≤ 7 ms (If three-phase) or t
t
≤ 15 ms.
t
Trip time tolerance
± 20 %
± 20 %
≤ 60 ms
± 20 % (60 ms with t4 = instantaneous)
± 20 %
± 20 %
± 20 %
± 20 %; in the case of single-phase self-
supply: the highest between ± 20 % and 30
ms
± 20 %
ABB | SACE Emax 2
(9)
(9)
(example: If = 0.8 In, I1= 0.6
t
≤ 9 ms (If single-phase);
t
Ekip Touch - Protections
11 - Performance table