NSPB (Non-Segregated Phase Bus Duct) round enclosure

Closed busbars with the voltage of 6, 10 and 20 kV for rated currents of up to 6000 A are used at electric power stations for the electrical connections of transformers with the cabinets of complete distribution devices and turbine generators with step-up transformers installed in three-phase AC circuits with the frequency of 50 Hertz and 60 Hertz.

  • For the electrical connections of transformers with switchgear cabinets
  • For turbine generators with step-up transformers installed in 3-phase AC circuits with the frequency of 50 and 60 Hertz
  • They may have phase-to-phase partition plates/ be of phase-screened type