摘要
论述了低噪声内燃机精密电站所涉及的中频电缆的计算方法。内燃机精密电站中频(400 Hz)供电的电力电缆的选择不能简单地根据电缆的允许载流量及其在线路中的电阻压降来确定。由于输出频率的提高,使得趋肤效应和邻近效应作用显著,且存在较大的电抗引起的压降。当用普通电力电缆输送中频电能时,必须进行较为详细的选择计算。
A calculation method for the medium-frequency power＇s cables used in the lower noise doublefrequency precise diesel power plant was discussed, in which the choice of the calculation method for power＇s cables doesn＇t be determined only by the electric current permitted to be loaded and the voltage＇s decreasing in the electric cable which is caused by the resistance. The rise in the frequency of electric supply will lead to an obvious effect of current-inclining to the cable＇s skin and approaching, and also to the voltage＇s decreasing caused by greater power resistance. More detailed calculations for choice must be needed when the medium-frequency power＇s cables are delivered by the usual power＇s cable.
出处
《电气传动》
北大核心
2007年第8期6-7,19,共3页
Electric Drive
关键词
内燃机电站
低噪声
电缆
中频
计算方法
diesel power plant lower noise electric cable medium-frequency calculation-method
