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SPO
Knee Type Disconnector up to 1,200 kV

GE’s SPO is a vertical break disconnector with a two-piece arm. In the open position the blade sections fold upon themselves in a vertical plane of only 60% of the longitudinal dimension.

Customer Benefits
  • High performance and reliability
  • Reduced vertical space requirements
  • Contact penetration not affected any eventual site misregulations
  • Up to 20 mm (3/4”) ice
  • Built-in ground switches and arc restrictors available
  • Virtually maintenance free
  • Easy start-up and commissioning
Main Characteristics
Specifications
Drawings
  • Substation crossing structures and wires can be lower and less expensive than conventional vertical break disconnectors
  • Low center of gravity for live part provides high performance during earthquakes and faster, smoother and rebound-free operation
  • Virtually maintenance free with factory-sealed bearings, life-time greased or self-lubricating parts and corrosion-free materials

Specifications

Technical Data (ANSI)

Rated Voltage Rated Current A/ Short time current kA BIL kV A inches B inches C inches D inches E inches F inches G inches H inches
245 kV 4000/63 1050 8' 4 1/4" 9' 10" 5' 7" 1' 4 3/4" 1' 7 3/4" 1' 1 1/2" 1' 1 1/2" 6 3/4"
362 kV 4,000/63 1300 9' 9 1/2" 12' 1 3/4" 7' 8 1/2" 1' 11 1/2" 2' 7 1/2" 1' 3 3/4" 2' 7 1/2" 7 3/4"
550 kV 4,000/63 1800 13' 74 1/2" 17' 6 3/4" 9' 4 1/2" 1' 11 1/2" 3' 3 3/4" 1' 3 3/4" 2' 7 1/2" 7 3/4"
800 kV 4,000/63 2050 17' 1 1/4" 19' 8 1/4" 12' 7 1/2" 1' 11 1/2" 3' 3 3/4" 1' 3 3/4" 2' 7 1/2" 7 3/4"

Drawings

SPO drawing
SPO drawing