| 摘要 |
<p>A circuit breaker (Fig. 3) comprises a vacuum interrupter (1) coaxial within a current sensor or transformer (2), the latter being electrically insulated from the former by suitable insulation material such as epoxy resin or polymer concrete (3). The operation to open or close the circuit breaker can be carried out by a suitable mechanism such as a magnetic actuator (12) as described in UK Patent 2297429 or other forms of actuator such as spring, hydraulic, pneumatic or solenoid type mechanisms.</p> |
