Siemens SIPROTEC 7UM62, Manual

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4.30 Inadvertent Energization (ANSI 50/27)
445
7UM62 Manual
C53000-G1176-C149-3
4.30 Inadvertent Energization (ANSI 50/27)
Setting Ranges/
Resolutions Overcurrent Pick-Up I
STAGE
0.5 A to 100.0 A
1
) (Increments 0.5 A)
1
)
or
∞
(does not expire)
Release U
1
< 10.0 V to 125.0 V (Increments 0.1 V)
Delay Time PICK UP T U
1
< 0.00 s to 60.00 s (Increments 0.01 s)
or
∞
(does not expire)
Drop Out Delay Time DROP OUT T U
1
< 0.00 s to 60.00 s (Increments 0.01 s)
or
∞
(does not expire)
Inherent Operating
Times – Pickup Times Approx. 25 ms
– Dropout Times Approx. 35 ms
Dropout I>>> Approx. 0.80 or 250 mA
1
)
Release Threshold U
1
< Approx. 1.05
Tolerances Overcurrent pick-up I>>> 5 % of setting value or 100 mA
1
)
Release U
1
< 1 % of setting value or 0.5 V
Delay Times T 1 % of setting value or 10 ms
Influencing
Variables Power Supply DC Voltage (U
DC
) in Range
0.8
≤
U
PS
/ U
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 %
Harmonic currents
– Up to 10 % 3. Harmonic
< 1 %
– Up to 10 % 5. Harmonic < 1 %
1
) For I
N
= 1 A, divide all limits and increments by 5.