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S3C
Double Side Break Disconnector up to 300 kV

The S3C is a low profile, reduced phase-to-phase distance double side disconnector that provides additional space savings. The optimum mechanical and electrical characteristics of the current carrying parts are ensured through the use of high strength aluminium alloys combined with silver-plated copper contacts. The S3C can be customized for vertical, underhung and phase-over-phase installations.

Customer Benefits
  • Minimum phase-to-phase spacing
  • Small enter-to-center distance between poles
  • Reduced phase-to-phase distance
  • Built-in earthing switches and arc restrictors available
  • Virtually maintenance free
  • Easy start-up and commissioning
Main Characteristics
Specifications
Drawings
  • The optimum mechanical and electrical characteristics of the current carrying parts are ensured through the use of high strength aluminium alloys combined with silver-plated copper contacts
  • Rectangular aluminum blade is attached to the top of the center rotating insulator and moves smoothly in the jaw
  • Galvanized structural steel channel base supports the insulators and live parts, providing high strength and rigid design
  • Center insulator stack rotates on weather sealed, greaseless rotor bearings
  • Customizable for vertical, underhung and phase-over-phase installations
  • Virtually maintenance free with factory-sealed bearings, life-time greased or self-lubricating parts and corrosion-free materials

Specifications

Technical Data (IEC)

Rated Voltage Rated Current A/ Short time current kA** BIL kV A mm B mm C mm D mm E mm
72.5 kV 3150/50 325 1100 1004 1200 130  
100 kV 3150/50 450 1500 1276 1200 100  
123 kV 3150/50 550 1500 1476 1200 150  
145 kV 4000/63 650 1800 1757 200 150  
170 kV 4000/63 750 2000 1979 2200 170  
245R kV 4000/63 950 2400 2413 2600 220 270
245 kV 4000/63 1050 2800 2613 3000 220 270
300 kV 3150/50 1050 3200 2963 3400 220 270

Drawings

S3C drawing
S3C drawing