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在两台电梯并联中,召唤触钮(或按钮)及其信号灯和过渡继电器是两台公用的。供给它们的电源,既要满足在两台电梯同时正常运行时的需要。同时还要保证在其中任何一台电梯停止使用或检修时,另外一台电梯也能正常运行。目前有的电梯生产厂家,将并联中公用部分的电源,由两台中的一台来提供。这样,虽然两台电梯同时运行时可以,但若提供给公用部分电源的那台电梯停止使用或检修时,则另一台电梯由于公用部分没有电源无法正常运行。为解决这一问题,有的采用两台共同给公用部分供电,这
In the two elevators in parallel, the summon button (or button) and its lights and transition relays are two public. The power supply to them, both to meet the two elevators at the same time the normal operation needs. At the same time also ensure that any one of the elevator to stop using or overhauling, another elevator can be normal operation. At present, some elevator manufacturers supply the power in the common part in parallel with one of the two sets. In this way, although both elevators can operate at the same time, if the elevator provided to the common part power supply is stopped or overhauled, the other elevator will not be able to operate normally due to the lack of power in the common part. In order to solve this problem, some adopt two units to supply power to common part