| 摘要 |
System for remotely controlled electrical supply and protection comprising a contactor and a circuit breaker in series, characterised in that the properties of the elements of the breaker unit 1' of the contactor 20, which intervene in the repulsion process and define the dynamic behaviour of the moving parts 2', 2'a in the presence of a short-circuit current are sufficiently similar to those which govern the behaviour of the elements 2, 2a of the breaker unit 1 of the circuit breaker 10 with this same current, and at least when the latter remains below a current causing automatic triggering of this circuit breaker, for these parts to perform simultaneous displacements. <IMAGE>
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