Peak Overvoltage Protection for Capacitors
Setting Values
Threshold value
Inverse-time stage
Definite-time stage
User-defined characteristic curve
0.80 to 3.00 p.u.
0.80 to 10.00 p.u.
0.80 to 3.00 p.u.
Increments of 0.01
Increments of 0.01
Increments of 0.01
Tripping delay 0.01 s to 3600.00 s Increments of 0.01 s
Dropout delay 0.00 s to 3600.00 s Increments of 1.00 s
Down integration time 1 min to 1500 min Increments of 1 min
Time multiplier 0.05 to 15.00 Increments of 0.01
Number of value pairs for the operate curve 30 Increments of 1
X values of the operate curve 1.00 p.u. to 4.00 p.u. Increments of 0.01 p.u.
Y values of the operate curve 0.00 s to 9999.99 s Increments of 0.01 s
Number of value pairs for the dropout characteristic
curve
30 Increments of 1
X values of the dropout characteristic curve 0.01 p.u. to 0.95 p.u. Increments of 0.01 p.u.
Y values of the dropout characteristic curve 0.00 s to 9999.99 s Increments of 0.01 s
Inverse-Time Characteristic Curve (IEC/IEEE)
[dw_pecinv-230813, 2, en_US]
Figure 12-18
Inverse-Time Characteristic Curve
The points on the characteristic curve defined in the standards result from a threshold setting of 1.1. These
single points are connected via semi-logarithmic line segments.
12.34
Technical Data
12.34 Peak Overvoltage Protection for Capacitors
SIPROTEC 5, Overcurrent Protection, Manual 1515
C53000-G5040-C017-8, Edition 07.2017
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