SOQ- negative sequence time overcurrent relay

The SOQ relay is a solid state time overcurrent device intended for use in protecting rotating machinery against excessive heating due to prolonged unbalanced current

The SOQ relay is a solid state time overcurrent device intended for use in protecting rotating machinery against excessive heating due to prolonged unbalanced current. It is suitable for use with directly-cooled or indirectly-cooled turbine generators, salient pole generators, synchronous condensers, or any rotating machine having a known I22t limit. 

Why ABB?

  • Long product life
  • Ease of application
  • Reliable protection
  • High-quality design

Are you looking for support or purchase information?

Loading documents

Related offering

Select region / language