1SDH002031A1002 ECN000092998 Rev. B
SACE Tmax XT2
– XT4 | 78
24 - Performance tables
General notes
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
Standard
Protections
Protection
[ANSI code]
Trip time t
t
(1)
Trip threshold
tolerance
(3)
Trip time tolerance
L [49]
Curve
t = k/I
2
𝑡
𝑡
=
𝑡1 𝑥 9
(
𝐼𝑓
𝐼1
)
2
Activation for If in the
range:
(1.05-1.2) x I1
± 10 % with If
6 x In
± 20 % with If > 6 In
Curves
60255-
151
𝑡
𝑡
=
𝑡1 𝑥 𝑎 𝑥 𝑏
((
𝐼𝑓
𝐼1
)
𝑘
−1)
S [50TD / 51]
Curve
t = k
tt = t2
± 7 % with If
6 In
± 10 % with If > 6 In
The better of: ± 10 % or
± 40 ms
Curve
t = k/I
2
𝑡
𝑡
=
𝑡2 𝑥 100
𝐼𝑓
2
± 15 % with If
6 x In
± 20 % with If > 6 In
S2 [50TD]
t
t
= t5
± 7 % with If
6 In
± 10 % with If > 6 In
The better of: ± 10 % or
± 40 ms
I [50]
t
t
30 ms
± 10 %
--
G [50N TD /
51N]
Curve
t = k
t
t
= t4
± 7 %
The better of: ± 10 % o
± 40 ms
(2)
Curve
t = k/I
2
𝑡
𝑡
=
2
(
𝐼𝑓
𝐼4
)
2
± 15 %
MCR
t
t
30 ms
± 10 %
--
2I [50]
t
t
30 ms
± 10 %
--
IU [46]
t
t
= t6
± 10 %
The better of: ± 10 % or
± 40 ms with t6 < 5 s;
± 100 ms with t6
5 s
Startup
Protection
Trip time t
t
Trip threshold
tolerance
(3)
Trip time tolerance
S StartUp
t
t
= t2 startup
± 7 % with If
6 In
± 10 % with If > 6 In
The better of: ± 10 % or ± 40 ms
I StartUp
t
t
30 ms
± 10 %
--
G StartUp
t
t
= t4 startup
± 7 %
The better of: ± 10 % or ± 40 ms
S2 StartUp
t
t
= t5 startup
± 7 % with If
6 In
± 10 % with If > 6 In
The better of: ± 10 % or ± 40 ms
Summary of Contents for SACE Tmax XT2
Page 84: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 84 L curve Ekip M Touch S curve t k I2 ...
Page 86: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 86 G curve t k I2 G curve t k ...
Page 87: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 87 IU curve UV curve UV2 curve ...
Page 88: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 88 OV curve OV2 curve VU curve ...
Page 89: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 89 S V curve S2 V curve RV curve ...
Page 90: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 90 UF curve UF2 curve OF curve OF2 curve ...
Page 91: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 91 RP curve D curve ...
Page 92: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 92 OQ curve OP curve ...
Page 93: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 93 UP curve RQ curve ...
Page 94: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 94 ROCOF curve R JAM curve R STALL ...
Page 95: ...1SDH002031A1002 ECN000092998 Rev B SACE Tmax XT2 XT4 95 UC curve ...
