7SG11 Argus Technical Reference
©2013 Siemens Protection Devices Limited
P20007 Page 10 of 71
Attribute
Value
Tm
Time multiplier setting range
0.025, 0.050…1.600
t
d
Delay setting range
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
char = NI, VI, EI, LTI
Tm
K
t
Is
I
1
, 5 % absolute or 30 ms,
where I = applied current,
for char = NI : K = 0.14, = 0.02
(IEC type A)
VI : K = 13.5, = 1.0
(IEC type B)
EI : K = 80.0, = 2.0
(IEC type C)
LTI : K = 120.0, = 1.0
t
op
Operate time
char = DTL
t
d
, 1 % or 10 ms
Repeatability
1 % or 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Reset setting
INST, 1, 2…60 s
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
5 %
Figure 1.5-1 shows the operate times for the four IDMTL curves with a time multiplier of 1. Figure 1.5-2 shows the
instantaneous operate times for the principal overcurrent starter. These operate times apply to non-directional
characteristics. Where directional control is applied then the directional element operate time (section 1.4.4)
should be added to give total maximum operating time.
1.4.1.2
Lowset, Highset 1, Highset 2
Operate Level
Attribute
Value
Is
Setting range
0.05, 0.1…2.5, 3.0…52.5 x
In
I
op
Operate level
100 % x
Is
, 5% or 1 % In
Reset level
95 %
I
op
5% or 1 % In
Repeatability
5 %
Transient overreach
(X/R 100)
-5 %
-10 °C to +55 °C
5 %
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
5 %
Operate Time
Attribute
Value
t
start
Starter operate time
see Figure 1.5-3 and Figure 1.5-4, 5 ms
t
d
Delay setting
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s
t
op
Operate time
t
d
+
t
start
, 1 % or 10 ms
Repeatability
1 % or 10 ms
Overshoot time
< 40 ms
Disengaging time
< 42 ms
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
5 %