当电力系统发生短路故障时,需要迅速切断故障部分,使其余部分能继续运行。这一任务要由继电保护装置和断路器来完成。
With the continuous expansion of power system's scale and capacity, short-circuit capacity becomes a significant constraint factor to the development of power system.
随着电力系统规模和容量的不断扩大,短路容量成为制约电网发展的一个重要因素。
参考来源 - 新型固态限流器控制系统的改进Along with the continuous development of power system, short circuit capability is increasing, which seriously affects the electrical equipments selection and investment. Meanwhile it has caused serious hidden dangers to the security and stability of power system operation.
随着电力系统的不断发展,短路容量日益增大,严重影响电气设备的选择和投资,同时给电力系统安全稳定运行也带来极大的隐患。
参考来源 - 新型固态限流器整流桥本体故障的仿真研究·2,447,543篇论文数据,部分数据来源于NoteExpress
因此,电网短路容量水平必须在运行质量和开关开断能力间折中决策。
Therefore, the short-circuit capacity of the power network must be decided in the middle way between the running quality and the breaking capacity of the switches.
本文分析了谐振次数与电容器组容量、母线短路容量以及母线电压上升值之间的数学关系。
The equation is given which explains the relation between resonance frequency and capacitor bank capacitance, bus short-circuit capacitance and bus rising voltage value.
熔断器选择必须依据其使用条件来进行,主要有系统电压、额定电流、短路容量、保护配合等。
Selection of fuses must be carried out according to their use conditions, mainly they are system voltage, rated current, short circuit capacity, protection suitability etc.
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