Protection Engineering Basics and Schemes Protection Engineering | Seite 256






Over/under voltage protection
Frequency protection
Directionality
Sensitive ground protection
Synch check
8.3.3.1 Now see working of this reclosure
 Sensing current from 3 current transformers built
in auto reclosure
 Secondary currents of phases CTs are conditioned
then flow to CPU, from where it is converted to
pg. 256