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4 Technical Data
4.18
Frequency Protection (optional)
Frequency Elements
Quantity
Pickup Values
f> or f< adjustable for each element
For f
= 50 Hz
N
For f
= 60 Hz
N
Times
Pickup times f>, f<
Dropout times f>, f<
Delay times T
The set times are pure delay times.
Note on dropout times:
Dropout was enforced by current = 0 A and voltage = 0 V.
Enforcing the dropout by means of a frequency change below the dropout threshold extends the dropout times.
Dropout Frequency
∆f = | pickup value – dropout value |
Operating Ranges
In voltage range
In frequency range
Tolerances
Frequencies f>, f< in specific range (f
Time delays T(f<, f>)
564
4, depending on setting effective on f< or f>
45.50 Hz to 54.50 Hz
55.50 Hz to 64.50 Hz
Approx. 85 ms
approx. 30 ms
0.00 s to 600.00 s
Approx. 20 mHz
Approx. 6 V to 230 V (phase-earth)
25 Hz to 70 Hz
± 10 %)
15 mHz in range U
N
1 % of setting value or 10 ms
Increments 0.01 Hz
Increments 0.01 Hz
Increments 0.01 s
: 29 to 230 V
LE
C53000-G1176-C169-1
7SD5 Manual
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