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4 Technical Data
4.13
Overexcitation (Volt/Hertz) Protection (ANSI 24)
Setting Ranges / Increments
Times
Dropout Ratios
Tripping Characteristic
Tolerances
326
Pickup threshold (Alarm Stage)
Pickup threshold of stage characteristic
Time Delays T U/f>, T U/f>>Warning Stage
and Stage Characteristic
Characteristic value pairs U/f
Associated Time Delay for t (U/f) Thermal
Replica
Cooling time T
COOL
Alarm and Stage Characteristic
Pickup times for
1.1 · Setting value
Dropout Times
Dropout/Pickup
thermal replica (default setting) and stage
characteristic)
Pickup on U/f
Delay times T
(Alarm and Stage Characteristic)
thermal replica (time characteristic)
1.00 to 1.20
1.00 to 1.40
0.00 s to 60.00 s
or ∞ (ineffective)
1,05/1,10/1,15/1,20/1,25/1,30/1,35/1,40
0 s to 20,000 s
0 s to 20,000 s
approx. 60 ms
approx. 60 ms
approx. 0.95
see Figure 4-6
3 % of setting value
1 % of setting value or 10 ms
5 %, related to U/f ± 600 ms
Increments 0.01
Increments 0.01
Increments 0.01 s
Increments 1 s
Increments 1 s
7UM61 Manual
C53000-G1176-C127-3
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