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Overhead Linear Puffer Switches

Load break with 40kA asymmetrical momentary. G&W's overhead Linear Puffer (LP) load break switches are designed for operation on distribution systems rated through 38kV, 630A continuous current and 40kA asymmetrical momentary. LP overhead switches are designed and tested to applicable IEEE and IEC standards

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Features:

Heavy Duty Ratings – LP switches are designed for rugged duty applications. Switches are tested and rated to 40kA rms asymmetrical momentary and fault close, 1200 load break operations at full rated current and 2000 mechanical operations.
Visible Open/Close – A color coded contact indicator (green/open, red/closed) is standard and easily visible from ground level. An optional viewing window is available permitting visible verification of contact position for all 3 phases

Resources
Overhead SF6 Insulated Switching Catalog Specification

Ratings

Max. Voltage, kV	15.5	27	38
Voltage class, kV	15	27	35
BIL Impulse, kV	110	125	150
One Minute Withstand, AC kV	35	60	70
One Minute Withstand, Production test rating , AC kV	34	40	50
15 Minute Withstand, DC kV	53	78	103
Continuous Current, A*	630	630	630
Momentary Current, kA asym	40	40	40
Fault-Close Current, kA asym (3 times)	40	40	40
One Second Current, kA sym	25	25	25
Open Gap Withstand, kV	200	200	200
10 Operation Overload Interrupting Capability, A	3000	3000	3000

Above tested to 1200 load break operations at 630A and 2000 mechanical operations.

* 900A available

Ratings apply to the switch assembly and may be reduced depending upon the entrances chosen.