[logik-dynam-ansprechwertumschalt-bsp-umz-phasenstrom-121102-st, 1, en_GB]
Figure 2-85
Logic diagram for dynamic cold load pickup feature — illustrated for phase overcurrent protec-
tion stage on side 1 (simplified)
Setting Notes
General
Dynamic cold load pickup can only be enabled if during configuration of the functional scope was set at the
address 117
COLDLOAD PICKUP
. =
Enabled
(see Section
required
Disabled
is to be set. In address 1701
COLDLOAD PICKUP
the function can be set to
ON
or
OFF
.
Cold Load Criteria
You can determine the criteria for dynamic switchover to the cold load pickup values for all protective func-
tions which allow this switchover. Select the current criterion or the breaker position criterion breaker posi-
tion:
•
Address 1702
Start CLP Phase
for the phase current stages,
•
Address 1703
Start CLP 3I0
for the residual current stages,
•
Address 1704
Start CLP Earth
for the earth current.
2.6.2
Functions
2.6 Dynamic Cold Load Pickup for Time Overcurrent Protection
174
SIPROTEC 4, 7UT6x, Manual
C53000-G1176-C230-5, Edition 09.2016
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