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LW30-126/145T3150-40HV SF6 Circuit Breaker

LW30-126/145/3150-40 SF6 high-voltage AC circuit breaker is of 3-phase 50Hz high-voltage switchgear,used for the control and protection of 126kV/145kV power distribution and transmission system,as well as being used as the network interconnected circuit breaker and in the places switching capacit or bank.

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Service and Installation Conditions
Ambient temperature: -30℃~+40℃ (special order - 50℃~+40℃)
Altitude:≤1000m(No limitation for special order)
Humidity:
Relative humidity at average per day (25℃): ≤95%
Relative humidity at average per month: ≤90%
Saturation vapour pressure: Daily average ≤2.2×10MPa
Monthly average ≤1.8×10MPa
Wind pressure: ≤700Pa
Icing thickness: 10mm
Seismic intensity:
Horizontal acceleration: ≤0.3g
Vertical acceleration: ≤0.15g
Sunshine intensity: 0.1w/cm (at wind velocity of 0.5m/s)
Max. daily temperature rise: 25℃
Symmetrical Creepage distance: 31mm/kV
Protection class: IP54
Keep the breaker away from places with combustible, explosive, corrosive materials and violent vibrations.