7SG11 Argus Technical Reference
©2013 Siemens Protection Devices Limited
P20007 Page 12 of 71
Operate Angle
Attribute
Value
Phase-fault
type I: +30, +45
type II: -90, -89…0, +1…+90
s
Angle setting
Earth-fault
type I: 0, -15, -45, -65
(see note below)
type II: -90, -89…0, +1…+90
type I at 50 Hz,
type II
s
, 5
CA
Characteristic
angle (I with
respect to V)
type I at 60 Hz
Phase-fault: +25 5 or +40 5
Earth-fault: 0 5 , -13 5 ,-46 5 or -67 5
forward
CA
- 87.5 5
to
CA
+ 87.5 5
Operating angle
reverse
(
CA
- 180 ) - 87.5 5
to
(
CA
- 180 ) + 87.5 5
10°C to +55°C
5
Variation in
characteristic
angle
47 Hz to 52 Hz
57 Hz to 62 Hz
type I:
2.5 per 5 Hz variation
type II:
2.5
Note. Some models are available in which the -65 setting is replaced by a -90 setting.
Operate Threshold
Attribute
Value
I
> 5 % In
V (p/f)
> 2 V
Minimum levels for
operation
V (e/f)
> 3.3 V
Operate Time
Attribute
Value
Operate time
type I: typically 20 ms at characteristic angle
type II: typically 40 ms at characteristic angle
Reset time
type I: typically 20 ms at characteristic angle
type II: typically 40 ms at characteristic angle
1.4.5 Circuit Breaker Fail
Operate Level
Attribute
Value
Is
Is
Is
Iop
Phase Fault setting
Earth Fault Setting
SEF Setting
Operate Level
Reset Level
Off, 0.05, 0.1 … 1.0 xIn
Off, 0.05, 0.1 … 1.0 xIn
Off, 0.05, 0.1 … 1.0 xIn
100 % Is 5% or 1 % In
95 %
I
op,
5% or 1 % In
Repeatability
1 %
Variation
47 Hz to 52 Hz
57 Hz to 62 Hz
harmonics to 550 Hz
5 %
Operate Time
Attribute
Value
t
CBF1
,
t
CBF2
Delay setting (retrip, backtrip)
0.00, 0.01…20.00, 20.5 …100, 101 … 300 s