SX Pantograph Disconnector up to 1,000 kV

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Pantograph Disconnector up to 1,000 kV

The SX is a space saving double scissor aluminium disconnector connecting the lower busbar to the upper one via the pantograph arms. Horizontal rather than vertical separation means a space reduction of as much as 30%.

Customer Benefits

Reduced substation space requirements (up to 30%)
Clear conducting routing for safety
Rigid or flex busbars for flexibility
Double scissor design for high rigidity
Built-in ground switches available
Virtually maintenance free
Easy start-up and commissioning

Main Characteristics

Specifications

Drawings

Rugged performance in adverse conditions including high winds and heavy ice, stable in closed potion during short circuits
Blades are extra heavy, one piece, tubular aluminium with replaceable silver plated copper contacts
Galvanized structural steel channel base supports the insulators and live parts, providing high strength and rigid design
All bearings and counter-balancing springs are isolated from the main path
Vertical separation design offers space reduction as much as 30%
Clear busbar arrangement and routing results in increased safety during operation and maintenance
Flexible installation and arrangement configurations

Specifications

Technical Data (IEC)

Rated Voltage	Rated Current A/ Short time current kA Up to	BIL kV	A mm	B mm	C mm	D mm	Ø mm
72.5 kV	4000/63	325	980	2000	1400	340	22
100 kV	4000/63	450	1230	2200	1500	340	22
123 kV	3150/50	550	1480	2500	1600	340	22
145 kV	4000/63	650	1710	3000	2000	340	22
170 kV	4000/63	750	1910	3000	2000	340	22
245 kV	4000/80	1050	2510	3650	2650	340	26
300 kV	4000/80	1050	2810	3650	2650	340	26
362 kV	4000/80	1175	3100	4400	3100	400	26
420 kV	4000/80	1425	3550	5450	4100	400	26
550 kV	4000/80	1550	4200	5800	4300	400	26

Drawings