SPO Knee Type Disconnector up to 1,200 kV

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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