the measured value is set to phase-to-phase, the pulse duration is signaled selectively for the individual meas-
uring elements that have picked up (
Pulse VAB
,
Pulse VBC
or
Pulse VCA
).
Logic
[lojumpuu-011211-01.tif, 2, en_US]
Figure 6-333
Voltage-Jump Detection Logic
Application and Setting Notes
Parameter: Measured value
•
Default setting (_:9) Measured value = phase-to-ground
With the parameter Measured value , you specify which measured values of voltage are to be used for
determining the voltage jumps.
Parameter Value
Description
phase-to-ground
The tripping stage evaluates the phase-to-ground
voltages VA, VB and VC.
phase-to-phase
The tripping stage evaluates the phase-to-phase
voltages VAB, VBC and VCA.
zero-sequence voltage
The tripping stage evaluates the zero-sequence
voltage VN/V0.
6.50.4
Protection and Automation Functions
6.50 Voltage-Jump Detection
SIPROTEC 5, Overcurrent Protection, Manual 961
C53000-G5040-C017-8, Edition 07.2017
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