[7sj6x_dyn_parumschaltung-150502-kn, 1, en_US]
Figure 2-39
Logic diagram of the dynamic cold load pickup function (50c, 50Nc, 51c, 51Nc, 67c, 67Nc)
Setting Notes
General
The dynamic cold load pickup function can only be enabled if address 117
Coldload Pickup
was set to
Enabled
during configuration of the protection functions. If not required, this function is set to
Disabled
.
The function can be turned
ON
or
OFF
under address 1701
Coldload Pickup
.
Depending on the condition that should initiate the cold load pickup function address 1702
Start Condi-
tion
is set to either
No Current
,
Breaker Contact
or to
79 ready
. Naturally, the option Breaker
Contact can only be selected if the device receives information regarding the switching state of the circuit
breaker via at least one binary input. The option
79 ready
modifies dynamically the pickup thresholds of the
directional and non-directional time overcurrent protection when the automatic reclosing function is ready. To
2.4.2
Functions
2.4 Dynamic Cold Load Pickup
SIPROTEC 4, 7SJ62/64, Manual
113
C53000-G1140-C207-8, Edition 08.2016
Summary of Contents for SIPROTEC 4
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