Performance Tables - ABB SACE Tmax XT2 User Manual

24 - Performance tables


General notes



Standard
Protection
Protections
[ANSI code]
L [49]
S [50TD / 51]
S2 [50TD]
I [50]
G [50N TD /
51N]
MCR
2I [50]
IU [46]
Startup
Protection
S StartUp
I StartUp
G StartUp
S2 StartUp
1SDH002031A1002 ECN000092998
The performances shown in the following tables are valid with intervention time  100 ms
and temperature and signals within operating limits. If these constraints are not respected,
tolerances can increase.
Ekip Touch sends the TRIP command if the signal read exceeds the threshold for a time
longer than what is set (or resulting from the formula)
With a time-dependent tripping curve the calculation refers to a signal that maintains a
constant value throughout the duration. Any variation of the alarm signal will result in a
different trip time
The supplementary notes are shown after all the tables
(1)
Trip time t
t
Curve 
2
t = k/I
Curves

60255-
151
Curve

t = k
Curve

2
t = k/I
t = t5
t
 30 ms
t
t
Curve

t = k

Curve
2
t = k/I
 30 ms
t
t
 30 ms
t
t
t = t6
t
Trip time t
t
t = t2 startup
t
 30 ms
t
t
t = t4 startup
t
t = t5 startup
t
Rev. B
Trip threshold
tolerance
��1 �� 9
�� =
��
����
2
( )
Activation for If in the
��1
range:
��1 �� �� �� ��
�� =
(1.05-1.2) x I1
��
��
����
(( ) −1)
��1
tt = t2
± 7 % with If  6 In
��2 �� 100 ± 10 % with If > 6 In
�� =
��
2
����
± 7 % with If  6 In
± 10 % with If > 6 In
± 10 %
t = t4
t
± 7 %
2
�� =
��
2
����
( )
��4
± 10 %
± 10 %
± 10 %
Trip threshold
(3)
tolerance
± 7 % with If  6 In
± 10 % with If > 6 In
± 10 %
± 7 %
± 7 % with If  6 In
± 10 % with If > 6 In
Trip time tolerance
(3)
± 10 % with If  6 x In
± 20 % with If > 6 In
The better of: ± 10 % or
± 40 ms
± 15 % with If  6 x In
± 20 % with If > 6 In
The better of: ± 10 % or
± 40 ms
--
The better of: ± 10 % o
(2)
± 40 ms
± 15 %
--
--
The better of: ± 10 % or
± 40 ms with t6 < 5 s;
± 100 ms with t6  5 s
Trip time tolerance
The better of: ± 10 % or ± 40 ms
--
The better of: ± 10 % or ± 40 ms
The better of: ± 10 % or ± 40 ms
SACE Tmax XT2 – XT4 | 78