Brake controlling method of hydraulic plant
专利汇可以提供Brake controlling method of hydraulic plant专利检索，专利查询，专利分析的服务。并且PURPOSE: To prevent an erroneous operation of a brake at a high speed time by making a brake control performed when a generator speed detecting signal and a generator output voltage detecting signal are less than established values.
CONSTITUTION: In case when a water wheel generator G is to be stopped, a condition of a main machine stop operational condition 4 is established and a circuit breaker for parallelling 52 is opened then a relay 43-70GT to give a constant excitation to the generator G is operated. When number of revolutions of the generator G becomes less than 30% of its rated number of revolutions, a condition of a speed relay 14-1 is established and at a same time a condition of a voltage relay 27G is also established, an auxiliary relay 14-1X operates and a solenoid for braking 75s is operated. Number of revolutions, of the generator G becomes less than 3% of the rated number of revolutions, a condition of a speed relay 14-2 is established and a relay for brake releasing 14Z and a coil for field circuit breaking tripping 41T are operated.
COPYRIGHT: (C)1979,JPO&Japio，下面是Brake controlling method of hydraulic plant专利的具体信息内容。
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