[logesamt-170712-01.tif, 2, en_US]
Figure 7-63
Overall Trip Logic
Fault Logging and Fault Recording
A fault is opened with every protection pickup. This means that a fault log and a fault recording are started.
Saving of the fault record depends on the setting (see 3.4.3 Function Description). Since pickup and tripping
are the same in differential protection, the recording setting can be used with the pickup function. To enable
fault recording even with external errors, along with the exceedance of the characteristic curve, a fault record
is opened in case of a blocking by an external error or in case of a characteristic-curve increase through a DC-
component detection. This has the advantage that you can evaluate the transformer transfer method of the
current transformers very well in case of a fault.
Capacitor Bank Protection
7.8 Differential Protection for Capacitor Banks
1060 SIPROTEC 5, Overcurrent Protection, Manual
C53000-G5040-C017-8, Edition 07.2017
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