Siemens Argus 7SR21 - Negative Phase Sequence Voltage; Reference (47); Operate and Reset Level (47); Operate and Reset Time (47)

7SR21 & 7SR22 Performance Specification
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2.8 47 Negative Phase Sequence Voltage
2.8.1 Reference (47)
Parameter Value
Vs Setting 1, 1.5… 90 V
Hyst. Hysteresis 0, 0.1… 80 %
t
d
Delay setting
0.00, 0.01…20.00, 20.50… 100, 101… 1000, 1010… 10000,
10100… 14400 s
2.8.2 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 ± 0.25 V
Repeatability
± 1 %
Variation
-10 °C to +55 °C
£ 5 %
f
nom
- 3 Hz to f
nom
+ 2 Hz
£ 5 %
2.8.3 Operate and Reset Time (47)
Attribute Value
t
basic
Element basic operate time
0 to 2 xVs, 80 ms, ± 20 ms
0 to 10 xVs, 55 ms, ± 20 ms
t
op
Operate time following delay
t
basic
+ t
d
, ± 2 % or ± 20 ms
Repeatability
± 1 % or ± 20 ms
Overshoot time < 40 ms
Disengaging time < 60 ms