SPOL Knee Type Disconnector up to 1,200 kV

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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