VOLTAGE RATINGS AT RATED CONTACT STROKE
Rated frequency Hz 50Rated Voltage kV 12Rated short-time power-frequency withstand voltage (1 min) kV 42Rated lightning impulse withstand voltage kV 75CURRENT RATINGSRated Current A 2500Circuit resistance at lowest rated contact force µΩ ≤15Rated short-circuit breaking Current kA 31.5Breaking operations of rated short circuit breaking current Times 30Rated short-time withstand current kA 31.5Rated duration of short-circuit s 4Rated peak withstand current kA 80Rated short-circuit making Current kA 80*Rated breaking current of single capacitor bank A 630*Rated breaking current of back-to-back capacitor bank A 400Rated operating sequence O-0.3s-CO-180s-C
Outline
12kv vacuum circuit breaker's Vacuum interrupter