Page 94 - Sace Emax 2 Manual for design engineers

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ABB | SACE Emax 2
11 - Performance table

General notes: • The performance values given in the next table are valid with Δ 100 ms trip time, temperature and signals
within the operating limits; failure to comply with these limitations could lead to an increase in the tolerances.
• Ekip Touch sends the TRIP command if the signal read exceeds the threshold for longer than the set time
(or the time resulting from the calculation formula)
• With an inverse time-delay trip curve, the calculation refers to a signal with a constant value throughout
the timing: variation of the alarm signal causes a different trip time
• The additional notes are given after all the tables

Standard Protections Protection
[ANSI code] Trip time t t (1) Trip threshold tolerance (3) Trip time tolerance

(with curve t = k / I ) Activation for If within range: with If ≤ 6 In: ± 10 % / with
2
L [49]
(1.05 to 1.2) x I1 If > 6 In: ± 20 %

(with curves 60255-151)
The best between ± 10%
t = t2 ( with curve t = k )
t and 40 ms
with If ≤ 6 In: ± 7 % / with If >
S [50TD / 51]
6 In: ± 10 % with If ≤ 6 In: ± 15 % / with
If > 6 In: ± 20 %
(with curve t = k / I )
2
with If ≤ 6 In: ± 7 % / with If > The best between ± 10%
S2 [50TD] t = t5
t 6 In: ± 10 % and 40 ms
I [50] t ≤ 30 ms ± 10 % --
t
The best between ± 10%
t = t4 ( with curve t = k )
t and 40 ms (2)
G [50N TD / 51N] ± 7 %
± 15 %
(with curve t = k / I )
2
MCR t ≤ 30 ms ± 10 % --
t
2I [50] (10) ± 10 % --
with t6 ≥ 5 s: ± 100 ms
/ with t6 < 5 s the best
IU [46] t = t6 ± 10 %
t between ± 10 % and ± 40
ms

Startup

Protection Trip time t Trip threshold tolerance (3) Trip time tolerance
[ANSI code] t
with If ≤ 6 In: ± 7 % / with If > The best between ± 10%
S StartUp t = t2 startup
t 6 In: ± 10 % and 40 ms
I StartUp t ≤ 30 ms ± 10 % --
t
The best between ± 10%
G StartUp t = t4 startup ± 7 % and 40 ms
t
with If ≤ 6 In: ± 7 % / with If > The best between ± 10%
S2 StartUp t = t5 startup
t 6 In: ± 10 % and 40 ms

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