What are the properties of Vacuum Circuit Breaker?
A. High dielectric strength Use the pressure-interrupter arc quenching without frequent maintenance.
B. High dielectric strength Use pressure-reducing interrupter to require frequent maintenance.
C. High dielectric strength Use the arc quenching in a vacuum condition. Interrupter requires frequent maintenance.
D. Use the arc quenching in vacuum. With high dielectric strength. Interrupter does not require frequent maintenance.
Show Answer
Answer: C
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