• ABB-SafeRing/SafePlus-F,hzkd-power,ABB-SafeRing/SafePlus-F
  • ABB-SafeRing/SafePlus-F,hzkd-power,ABB-SafeRing/SafePlus-F
  • ABB-SafeRing/SafePlus-F,hzkd-power,ABB-SafeRing/SafePlus-F

Description

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