2.6 Dynamic Cold Load Pickup for Time Overcurrent Protection
193
7UT613/63x Manual
C53000-G1176-C160-2
Figure 2-83 Logic diagram for dynamic cold load pickup feature — illustrated for phase overcurrent protection stage on
side 1 (simplified)
2.6.2 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 Subsection
2.1.3). If the function is not 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 functions which allow this switchover. Select the current criterion or
the breaker position criterion breaker position:
• address 1702 Start CLP Phasefor the phase current stages,
• address 1703 Start CLP 3I0 for the residual current stages,
• address 1704 Start CLP Earth for the earth current.
The current criterion takes the currents of such side or measuring location to which the
corresponding protective function is assigned. When using the breaker position crite-
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