| 摘要 |
<p>The starting circuit has a pair of relays (K1,K2) controlled by the safety monitoring circuit (1), which constantly monitors several input signals and a start switch (34). The relays are connected in series and operated in succession, with a capacitor (C15) connected in parallel with the first relay (K2) for controlling the switched through charge and a transistor (V91) connected to the first relay at its base and to the second relay (K1) at its collector.</p> |
