Siemens 7SG11 Manual page 65

Attribute
Tm Time multiplier setting range
t Delay setting range
d
t Operate time
op
Repeatability
Overshoot time
Disengaging time
Reset setting
Variation
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
Is Setting range
I Operate level
op
Reset level
Repeatability
Transient overreach
(X/R 100)
Variation
Operate Time
Attribute
t Starter operate time
start
t Delay setting
d
t Operate time
op
Repeatability
Overshoot time
Disengaging time
Variation
©2013 Siemens Protection Devices Limited
Value
0.025, 0.050...1.600
0.00, 0.01...20.00, 20.5 ...100, 101 ... 300 s
t
where I = applied current,
char = NI, VI, EI, LTI
for char = NI : K = 0.14,
char = DTL
t ,
d
1 % or
< 40 ms
< 42 ms
INST, 1, 2...60 s
47 Hz to 52 Hz
57 Hz to 62 Hz 5 %
harmonics to 550 Hz
Value
0.05, 0.1...2.5, 3.0...52.5 xIn
100 % xIs,
95 % I
5 %
-5 %
-10 °C to +55 °C 5 %
47 Hz to 52 Hz
57 Hz to 62 Hz 5 %
harmonics to 550 Hz
Value
see Figure 1.5-3 and Figure 1.5-4,
0.00, 0.01...20.00, 20.5 ...100, 101 ... 300 s
t + t
d
1 % or
< 40 ms
< 42 ms
47 Hz to 52 Hz
57 Hz to 62 Hz
5 %
harmonics to 550 Hz
7SG11 Argus Technical Reference
K
Tm , 5 % absolute or
I
1
Is
= 0.02
VI : K = 13.5, = 1.0
EI : K = 80.0, = 2.0
LTI : K = 120.0, = 1.0
1 % or 10 ms
10 ms
5% or 1 % In
5% or 1 % In
op
, 1 % or 10 ms
start
10 ms
30 ms,
(IEC type A)
(IEC type B)
(IEC type C)
5 ms
P20007 Page 10 of 71