Multi-Function Control ETMFC610
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8.2.8. Inrush Restraint
The ETMFC610 suppresses the time overcurrent operation during the inrush current restraint
period to prevent erroneous operation of the ETMFC610 due to the inrush current generated when
the CB does close operation or the near-field distribution device does close operation (the
instantaneous and instantaneous lockout overcurrent elements do normal operation). The setting of
the Inrush current restraint function can be set individually for phase, ground, sensitive earth fault
and negative sequence.
Figure 8-16. Inrush Restraint Operation Characteristics