ABB Relion 620 Series - Page 1015

Figure 536: Functional module diagram
9.4.4.1 Signal collection and delay logic
When the protection trips, the initiation of autoreclosing shots is in most
applications executed with the INIT_1...6 inputs. The DEL_INIT2...4 inputs are
not used. In some countries, starting the protection stage is also used for the shot
initiation. This is the only time when the DEL_INIT inputs are used.
1MRS757644 H Control functions
620 series
Technical Manual
1015