ABB-SafeRing/SafePlus-F

Common features

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

Standard features

•  Threeposition switch-fuse-disconnector withupstream earthing switch mechanically linked with downstream earthing switch
•  Switchposition indication for switch-fuse-disconnector and earthing switches
•  Operatingmechanism with double springfor switch-fusedisconnector function
•  Commonmechanism for earthingfunctions
•  Fusecanisters forDIN type fuse. Only accessible when earthing switches are closed
•  Fuse-link/transformerrating:12 kV, max 125 A CEF fuses

24 kV, max 63 A CEF fuses

•  Fusetrippingarrangement
•  Optical fuse tripindication
•  Signal(1NO) from internalpressure indicator wired to terminals (only one each SF6  tank)

  Optional features

  •  Bushings forsideextension
  • Cablebushings:

  Interface C (400 series bolted)

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

  Technical data

   

  Switch-fuse-disconnector
  Rated voltage	kV	12	17.5		24
  Power frequency withstand voltage	kV	283)	38		50
  Impulse withstand voltage	kV	95	95		125
  Rated normal current	A	1)	1)		1)
  Breaking capacities:
  •  offload transformer	A          20         20         20
  Making capacity	kA       2)                    2)			2)
  Number of mechanical operations	1000 close/open			manual
  Electrical and mechanical classes	E3, M1
  Earthing switch downstream
  Rated voltage	kV        12         17.5      24
  Power frequency withstand voltage	kV        282)           38         50
  Impulse withstand voltage	kV        95         95         125
  Making capacity	kA       12.5     12.5     12.5
  Short time current 1 sec.	kA       5            5            5
  Number of mechanical operations	1000 close/open manual
  Electrical and mechanical classes	E2, M1