The disconnection from power network of power plants under emergency conditions may cause serious frequency drop and then large area outage, even power network collapse.
However, the danger offrequencycollapse always exists, and has a great impact for power system running.
但是,频率崩溃的危险是始终存在的,并对电力系统的安全稳定运行造成了很大的影响。
3
Under malignant emergency conditions, the frequencyof power system seriously and consequently drops down which lead, system to collapse and a large area outage.