Siemens Argus 7SR22 - Neutral Voltage Displacement; Reference (59 NDT); Operate and Reset Level (59 NDT); Operate and Reset Time (59 NDT)

7SR21 & 7SR22 Performance Specification
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2.20 59N Neutral Voltage Displacement
2.20.1 Reference (59NDT)
Parameter Value
Vs Setting 1, 1.5… 100 V
t
d
Delay setting
0.00, 0.01…20.00, 20.50… 100, 101… 1000, 1010… 10000,
10100… 14400 s
2.20.2 Operate and Reset Level (59NDT)
Attribute Value
V
op
Operate level
100 % Vs, ± 2 % or ± 0.5 V
Reset level
³ 95 % V
op
or ± 0.25 V
Repeatability
± 1 %
Variation
-10 °C to +55 °C
£ 5 %
f
nom
- 3 Hz to f
nom
+ 2 Hz
£ 5 %
2.20.3 Operate and Reset Time (59NDT)
Attribute Value
t
basic
Element basic operate time
Switched from 0 to 1.5 xVs, 76 ms, ± 20 ms
Switched from 0 to 10 xVs, 63 ms, ± 20 ms
t
op
Operate time following delay
t
basic
+ t
d
, ± 1 % or ± 20 ms
Repeatability
± 1 % or ± 20 ms
Overshoot time < 40 ms
Disengaging time < 50 ms
2.20.4 Reference (59NIT)
Parameter Value
M Multiplier setting 0.1, 0.2… 10, 10.5… 140
Vs Setting 1, 1.5… 100 V
t
d
Delay setting 0, 0.01… 20 s
t
res
Reset setting 0, 1…60 s