Rated Voltage: 40.5 kV
Rated Frequency: 50 Hz
Rated Current: 1250/1600/2000/2500/3150* A
Insulation Level – Rated Short-time Power Frequency Withstand Voltage (1min), Phase-to-earth & Phase-to-phase: 95 kV
Insulation Level – Rated Short-time Power Frequency Withstand Voltage (1min), Across fracture surfaces: 118 kV
Insulation Level – Short-time Lightning Impulse Withstand Voltage, Phase-to-earth & Phase-to-phase: 185 kV
Insulation Level – Short-time Lightning Impulse Withstand Voltage, Across fracture surfaces: 215 kV
Insulation Level – Auxiliary and Control Circuit Power Frequency Withstand Voltage: 2 kV
Power Frequency Withstand Voltage Under Zero Gauge Pressure: 30.4kV/5min
Partial Discharge: ≤5 pC
Rated Short-circuit Breaking Current: 31.5 kA / 40 kA
Rated Short-circuit Making Current (Peak): 80 kA / 100 kA
Rated Peak Withstand Current: 7.9 kA / 10 kA
Rated Short-time Withstand Current: 80 kA / 100 kA
Rated Back-to-back Capacitor Bank Breaking Current: 31.5 kA / 100 kA
Rated Short-circuit Duration: 4 s
Rated Cable Charging Breaking Current: 1250 A
First-Operating Coefficient: 50
Rated Operating Sequence: 0-0.3s-CO-180s-CO
SF₆ Gas Pressure (20℃ absolute): Rated Pressure 0.45MPa / 0.6MPa
SF₆ Gas Pressure (20℃ absolute): Alarm Pressure 0.4MPa / 0.55MPa
SF₆ Gas Pressure (20℃ absolute): Blocking Pressure 0.38MPa / 0.58MPa
Gas Moisture Content: ≤150 μL/L
Annual Gas Leakage Rate: ≤0.1 %
Electrical Life: 20 times
Mechanical Life: 10000 times
Charged SF₆ Gas Weight: 1.5 kg
Circuit Breaker Total Weight: 500 kg