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SOTF-Protection Module: Switch Onto Fault SOTF-Protection Module: Switch Onto Fault SOTF In case that a faulty line is energized (e.g. when an earthing switch is while maintenance in the ON-Position) an instantaneous tripping required. This protection module can initiate a high speed trip of the overcurrent protection modules. This module can be started via a digital input that indicates that the circuit breaker is manually closed. This Module issues a Signal only (This Module is not armed, does not issue a trip command). In order to take influence on the tripping settings of the overcurrent protection in case of switching onto a fault, you have to assign the signal „SOTF.EFFEKTIVE“ onto an Adaptive Parameter Set. Please refer to chapter Parameter / Adaptive Parameter Sets. Within the Adaptive Parameter Set you have to modify the tripping characteristic of the overcurrent protection according to your needs. EN MRA4 04/09 Page 331
