摘要
为了对配电系统PT高压熔断器熔断的原因有更深入的研究,通过大量的物理模拟实验,发现了PT高压熔断器熔断主要原因不是由铁磁谐振产生的过电压引起的,而是由系统三相对地电容在接地过程中的充放电引起的。并利用MATLAB数字仿真进行了验证,更进一步揭示了PT高压熔断器熔断的本质。在PT高压熔断器熔断理论方面有了重大突破。
In order to study the cause of PT high voltage fuse blow thoroughly in the electrical power distribution system, massive physical analogue experiments are tested. It is concluded that the primary cause of the PT high voltage fuse blow is not the over-voltage produced by the ferromagnetic resonance, but is the charging and discharging of system three-phase earth capacitance in process of connecting the earth. The MATLAB numeral simulation is employed to further investigate the essence of PT high voltage fuse blow.
出处
《现代电力》
2007年第4期34-37,共4页
Modern Electric Power
关键词
PT高压熔断器
熔断
铁磁谐振
PT high voltage fuse
blow
ferromagnetic resonance
