HV/MV Equipment
AC Disconnectors
(Disconnect Switches)

Grid Solutions > HV/MV Equipment > Disconnectors > AC Disconnectors > SPOL

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SPOL
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. The SPOL is equipped with the unique pollution and ice-free L-Contact and bus transfer contacts.

Customer Benefits
  • Pollution and ice-free L-contact
  • Reduced vertical space requirements
  • Built-in ground switches and arc restrictors available
  • Virtually maintenance free
  • Easy start-up and commissioning
Main Characteristics
Specifications
Drawings
  • Unique L-contact design for switches used in heavily polluted or iced sites, and where extended mechanical endurance (10,000 operations) is required
  • 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 (IEC)

Rated Voltage Rated Current A/ Short time current kA BIL kV A mm B mm C mm D mm E mm F mm G mm I mm Ø mm
362 kV 4000/63 1175 3190 3700 2500 600 800 400 800 200 26
420 kV 4,000/63 1425 3640 4200 2700 600 800 400 800 200 26
550 kV 4,000/63 1550 4290 5350 3500 600 1000 400 800 200 26
800 kV 4,000/63 2100 5490 6000 3800 600 1100 500 800 200 34

Drawings

SPOL drawing
SPOL drawing