ac circuit breakerの例文

例文

1. Because the main AC switchboard with its AC circuit breakers and protection relays is omitted from the new design, a new protection philosophy that fulfills class requirements is needed for selectivity and equipment protection.
2. High-voltage AC circuit breakers are routinely available with ratings up to 765 kV . 1, 200 kV breakers were launched by Siemens in November 2011, followed by ABB in April the following year.