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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

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
Max. Voltage, kV
15.5
27
38
Voltage class, kV
15
27
35
BIL Impulse, kV
110
125
150
One Minute Withstand, AC kV
50
60
70
Ten Second Withstand (wet) AC kV
45
50
60
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.

 

 
 
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