ABB Relion Technical Manual page 283

1MRK 502 048-UUS A
Technical manual
the decrease in the magnitude of the measured voltage quantity. Two different types of
dependencies are available:
• Voltage restraint overcurrent (when setting parameter VDepMode = Slope)
Current Pickup Level
PickupCurr
VDepFact * PickupCurr
ANSI10000123 V1 EN
Figure 126: Example for current pickup level variation as function of measured
voltage magnitude in Slope mode of operation
• Voltage controlled overcurrent (when setting parameter VDepMode = Step)
0,25 VHighLimit
Section 8
Current protection
VBase
ANSI10000123-1-en.vsd
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