The 7SR224 Recloser Controller is one of a range of new generation devices providing comprehensive directional and non-directional overcurrent protection integrated with associated protection elements and Autoreclose scheme logic. It builds on the years of in-service experience gained from the Argus family of products.
The Controller provides independent Phase Fault, Earth Fault and Sensitive Earth Fault autoreclose sequences. Each sequence can be user set to any mix of Instantaneous (fast time current characteristic (TCC)) or Delayed TCC protection and independent Reclose (Dead) times. The Controller also provides a separate Autoreclose sequence for external protection.
Communication access to relay functionality is via a front USB port for local PC connection or rear electrical RS485 port for remote connection. Additional rear port options are available including ethernet for IEC61850.