Siemens 7SR12 Argus - Negative Phase Sequence Voltage; Reference (47); Operate and Reset Level (47); Operate and Reset Time (47)

7SR11 & 7SR12 Performance Specification
©2017 Siemens Protection Devices Limited Chapter 3 Page 24 of 56
2.6 47 Negative Phase Sequence Voltage
2.6.1 Reference (47)
Parameter Value
Vs
Setting 1, 1.5… 90V
V
s
Guard
Guard Setting 1, 1.5, …199.5, 200 V
Hyst.
Hysteresis 0, 0.1… 80%
t
d
Delay setting
0.00, 0.01…20.00, 20.10… 100, 101… 1000, 1010… 10000,
10100… 14400 s
2.6.2 Operate and Reset Level (47)
Attribute Value
V
op
Operate level
100 % Vs, ± 2 % or ± 0.5 V
Reset level (100%-Hyst.) x V
op
± 1% or ± 0.25V
Repeatability
± 1 %
Variation
-10 °C to +55 °C
≤ 5 %
f
nom
± 5 %
≤ 5 %
2.6.3 Operate and Reset Time (47)
Attribute Value
t
basic
Element basic operate time
0V to 2.0 xVs, 80 ms, ± 20ms
0V to 10 xVs, 55ms, ± 20ms
t
op
Operate time following delay
t
basic
+ t
d
, ± 2 % or ± 20ms
Repeatability
± 1 % or ± 20ms
Overshoot time < 40 ms
Disengaging time < 90 ms