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1. Features and Ambient Condition
- Excellent breaking function, long electric life,
continuous breaking times at 50KA short circuit
current:20 times.
- Overhaul check period:>15 years.
- Mechanical endurance >3000 times,relative frequent operation allowed
Good for frequent operation.
- Easy installation, adjustment-free on site.
- Fine earthquake-proof: be able to withstand horizontal
acceleration of 0.5g and vertical acceleration of 0.25g.
Applicable for area with frequent earthquake.
- Altitude≤2000m, ambient temperature-40～50.
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2.Technical
data:
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Item
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Unit
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LW6-72.5
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LW6--126
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LW6-145
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LW6-170
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Rated voltage
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KV
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72.5
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126
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145
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170
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Rated current
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A
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2500
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3150
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3150
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3150
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Rated gas pressure(SF6,20°C)
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MPa
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0.6/0.4
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Rated breaking current
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KA
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50/40/31.5
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Rated short time withstand current(3s)
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KA
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50/40
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Rated peak withstand current
|
KA
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125/100
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Accumulated breaking current
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KA
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4200kA
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Breaking time
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ms
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≤60
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Power frequency withstand voltage(rms,1min )
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KV
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160+(42)/160
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250+(72)/250
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303+(42)/303
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325/365
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Lightning impulse withstand voltage(full wave 1.2/50μs)
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KV
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350+(60)/350
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550+(103)/550
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722/722
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750/750
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Withstand voltage at zero gas gauge pressure(rms, 5min)
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KV
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84/84
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146/146
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168/168
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175/175
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Permissible load
on wiring
terminal
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Horizontal
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N
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750
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1250
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1500
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Transverse
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500
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750
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1000
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Vertical
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750
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1000
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1250
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