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在电气集中车站,一般都设置双动道岔,在运输繁忙的大站,还常常根据需要设置一定数量的三动或四动的联动道岔,然而在采用三线制道岔控制电路里,两动以上的联动道岔就其安全和可靠性来说,虽然较两线制优越得多,但也存在着一定的缺陷,也可以说是一种隐患,一旦时机巧合就会发生二极管击穿情况。 当然,道岔表示二极管击穿的原因很多,有的因二极管质量不良,参数不标准,还有的因配线有错误或有关元件失去作用等。一般来说对于开通已久的设备是不存在配线错
In electric centralized stations, double-action turnouts are generally provided. In the busy stations, a certain number of three-way or four-way linkage switches are also often provided according to needs. However, in the three-way turnout control circuit, For the safety and reliability of the linkage switch, though it is much superior to the two-wire system, it has some defects, which can be said to be a hidden danger. Once the timing coincides, the diode breakdown occurs. Of course, the turnout said the diode breakdown for many reasons, some due to the poor quality of the diode, the parameters are not standard, there are due to wiring errors or related components lose their effect. In general, there is no wiring fault for a long-established device