Technical Data
4.18 Overexcitation (Volt/Hertz) Protection (ANSI 24)
SIPROTEC, 7UM62, Manual
C53000-G1176-C149-7, Release date 03.2010
493
Influencing Variables
Figure 4-13 Resulting Tripping Characteristic from Thermal Replica and Stage Characteristic of the
Overexcitation Protection (Default Setting)
Power supply direct voltage in range 0.8 ≤ U
Aux
/U
AuxN
≤ 1.15 ≤ 1 %
Temperature in range 23.00 °F (–5 °C) ≤ Θ
amb
≤ 131.00 °F (55 °C) ≤ 0.5 % / 10 K
Harmonics
– Up to 10 % 3rd harmonic
– Up to 10 % 5th harmonic
≤ 1 %
≤ 1 %
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