Siemens 7SR224 - Neutral Voltage Displacement; Reference (59 NDT); Operate and Reset Level (59 NDT); Operate and Reset Time (59 NDT)

7SR224 Argus Performance Specification
2.13 59N Neutral Voltage Displacement
2.13.1 Reference (59NDT)
Parameter Value
Vs
Setting 1, 1.5… 100V
t
d
Delay setting
0.00, 0.01…20.00, 20.50… 100, 101… 1000, 1010… 10000,
10100… 14400 s
2.13.2 Operate and Reset Level (59NDT)
Attribute Value
V
op
Operate level
100 % Vs, ± 2 % or ± 0.5 V
Reset level
≥ 95 % V
op
or V
op
± 0.25V
Repeatability
± 1 %
-10 °C to +55 °C
≤ 5 %
Variation
f
nom
- 3 Hz to f
nom
+ 2 Hz
≤ 5 %
2.13.3 Operate and Reset Time (59NDT)
Attribute Value
0V to 1.5 xVs, 76 ms, ± 20ms
t
basic
Element basic operate time
0V to 10 xVs, 63 ms, ± 20ms
t
op
Operate time following delay
t
basic
+ t
d
, ± 1 % or ± 20ms
Repeatability
± 1 % or ± 20ms
Overshoot time < 40 ms
Disengaging time < 50 ms
2.13.4 Reference (59NIT)
Parameter Value
M
Multiplier setting 0.1, 0.2… 10, 10.5… 140
Vs
Setting 1, 1.5… 100V
t
d
Delay setting 0, 0.01… 20 s
t
res
Reset setting 0, 1…60 s
2.13.5 Operate and Reset Level (59NIT)
Attribute Value
V
op
Operate level
105 % Vs, ± 2 % or ± 0.5 V
Reset level
≥ 95 % V
op
or V
op
± 0.25V
Repeatability
± 1 %
-10 °C to +55 °C
≤ 5 %
Variation
f
nom
- 3 Hz to f
nom
+ 2 Hz
≤ 5 %
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