Siemens SIPROTEC 7UM62, Manual

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4 Technical Data
446
7UM62 Manual
C53000-G1176-C149-3
4.31 DC Voltage/DC Current Protection (ANSI 59N
DC
/51N
DC
)
Setting Ranges/
Resolutions Voltage Increase U
=
> 0.1 V to 8.5 V (Increments 0.1 V)
Voltage Decrease U
=
< 0.1 V to 8.5 V (Increments 0.1 V)
Current Increase I
=
> 0.2 mA to 17.0 mA (Increments 0.1 mA)
Current Decrease I
=
< 0.2 A to 17.0 mA (Increments 0.1 mA)
For Measurement of Sinusoidal Voltages 0.1 V
rms
to 7.0 V
eff
(Increments 0.1 V
rms
)
For Measurement of Sinusoidal Currents 0.2 mA to 14.0 mA (Increments 0.1 mA)
Delay Time T
GSS
0.00 s to 60.00 s (Increment 0.01 s)
or
∞
(ineffective)
The set times are pure delay times.
Times Pickup Times
– Increase U>, I>
in Operating State 1
≤
60 ms at f = f
N
in Operating State 0
≤
200 ms
– Decrease U<, I<
in Operating State 1
≤
60 ms at f = f
N
in Operating State 0
≤
200 ms
Dropout Times Same as pickup times
Dropout/Pickup
Ratios – Voltage Increase U
=
> Approx. 0.95 or –0.05 V
– Voltage Decrease U
=
< Approx. 1.05 or +0.05 V
– Current Increase I
=
> Approx. 0.95 or –0.1 mA
– Current Decrease I
=
< Approx. 1.05 or +0.1 mA
Tolerances – Voltage Thresholds 1 % of setting value, or 0.1 V
– Current Thresholds 1 % of setting value, or 0.1 mA
– Delay Times T 1 % of setting values, or 10 ms
Influencing
Variables for Pickup Power Supply DC Voltage (V
DC
) in Range
0.8
≤
V
PS
/ V
PS nominal
≤
1.15 1%
Temperature in Range
23 °F
≤ ϑ
amb
≤
131 °F 0.3 % / 10 °F
–5 °C
≤ ϑ
amb
≤
55 °C 0.5 % / 10 K
Frequency in Range
0.95
≤
f/f
N
≤
1.05 1 %