基于针板模型的低压线路接触不良的试验研究

Experimental Study of Low Voltage Line Contact Undesirable Based on Needle-Plate Model

制作了针板放电模型,模拟低压线路导体间接触不良。改变针板模型位于低压线路中的位置,利用数字示波器记录模型处于线路不同位置时中性线上的电压波形。试验结果表明,模型处于线路不同位置发生放电现象,其对应的中性线电压波形具有不同的放电特征,且具有一定的规律性。

A needle-plate model was made to simulate contact undesirable between conductors of low voltage line. By changing the position of the model in the circuit, a digital oscilloscope was used to record the voltage wavcfonn of neutral line while the model in different position. The experimental results show that there are different discharge characteristics of neutral line voltage waveform when the model is in different position, and it has a certain regularity.