ABB-Safering/Safeplus-V

Common features

All modules share many common features. These are described in the chapter “SafeRing/SafePlus  configurations”.

Standard features

•  630 A vacuum circuit-breaker forfeederprotection
•  Twoposition double springmechanism for vacuum circuitbreaker
•  Threeposition disconnector/earthing switchdownstream vacuum circuit-breaker
•  Threepositioning single springmechanism for disconnector/earthing switch
•  Interlockingbetweenvacuum circuit-breaker and disconnector/earthing switch
•  Switch positioning indication for vacuum circuit-breaker and disconnector/earthing switch
•  Self-powered electronicprotectionrelay with ring core CTs on cables
•  Trip coil(forrelay tripping)
•  Cablebushingshorizontally in front; Interface  C (400 series bolted) for 630 A vacuum circuit- breaker with integrated capacitor for voltage   indication

• Optional features

  • Cablebushings:

  Interface C (400 series bolted) combisensors with integrated voltage divider for voltage indication and integrated sensor for current and voltage monitoring

  •  Arcsuppressor
  •  Signal(1NO) from internalpressure indicator wired to terminals (only one each SF6  tank)

  Optional features also available as retrofit

  •  Motor operation forvacuumcircuit-breaker
  •  Auxiliary switches; Vacuum circuitbreaker

  position 2NO+2NC, disconnector position

  2NO+2NC, earthing switch position 2NO+2NC   and vacuum circuit-breaker tripped signal 1NO

  • Blockingcoil
  •  Undervoltagerelease with/without time delay

  • Technical data

     

    Vacuum circuit-breaker
    Rated voltage	kV	12	17.5	24
    Power frequency withstand voltage	kV	281)	38	50
    Impulse withstand voltage	kV	95	95	125
    Rated normal current	A		630
    Breaking capacities:
    •  short-circuit breaking current                   kA      21          16          16
    Making capacity                                            kA      52.5      40          40
    Short time current 3 sec.                               kA      21           16          16
    Number of mechanical operations     2000 close/open manual
    Electrical and mechanical classes      E2, C2, S1, M1
    Operation sequence                                    O - 3 min - CO - 3 min - CO
    Earthing switch downstream
    Rated voltage                                                  kV       12          17.5       24
    Power frequency withstand voltage kV      281)             38         50
    Impulse withstand voltage                             kV      95          95         125
    Making capacity                                            kA      52.5      40          40
    Short time current 3 sec.                               kA      21           16          16
    Number of mechanical operations     1000 close/open manual
    Electrical and mechanical classes       E2, M1