Siemens SIPROTEC 7UM62, Руководство пользователя

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4 Technical Data
444
7UM62 Manual
C53000-G1176-C149-3
4.29 Breaker Failure Protection (ANSI 50BF)
Pickup and Delay
Time Ranges/
Resolutions Pickup of 50 Element BF.I> 0.20 A to 10.00 A
1
)(Increments 0.05 A)
1
)
Delay Time TRIP-Timer 0.06 s to 60.00 s (Increments 0.01 s)
or
∞ (
no trip)
Initiating Time Pickup Times (protection initiates)
- For Internal Start Approx. 50 ms
- Using Controls Approx. 50 ms
- For External Start Approx. 50 ms
Reset Time Approx. 50 ms
Tolerances Pickup Current BF.I> 1 % of set value, or 50 mA
1
)
Delay Time TRIP-Timer 1 % 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.