SIPROTEC 7SA61

The SIPROTEC 7SA61 distance protection relay is a universal relay for protection, control and automation with a 4-line display on the basis of the SIPROTEC 4 system.

It is suitable to be implemented at all voltage levels due to its high level of flexibility.  

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DESCRIPTION

Basic Features

  • High-speed tripping time
  • Impedance setting range allows very small settings for the protection of very short lines
  • Self-setting detection for power swing frequencies up to 7 Hz
  • Current transformer saturation detector prevents non-selective tripping by distance protection in the event of Current Transformer (CT) saturation.
  • Phase-segregated tele-protection for improved selectivity and availability
  • Digital relay-to-relay communication by means of an integrated serial protection data interface
  • Adaptive auto-reclosure (ADT)