雷电冲击电流测试系统研究

The Research of a Measurement System of Lightning Surge Current

目的 研究雷电冲击电流测试系统 .方法 用无感电阻网络分流器测量雷电冲击电流 ,并进行测量重复性、线性度试验和阶跃波响应试验 .结果与结论 所研制的无感电阻网络分流器符合国家标准 GB/T1 76 2 6 .5 -1 999和国际电工委员会标准 IEC6 1 0 0 0 -4 -5的要求 ,且可用于 k V级脉冲大电流的测量和雷电浪涌 (冲击 )模拟器短路电流的波形校准 .

Aim To give a measurement system of lightning surge current. Methods To measure the lightning surge current using a shunt with non-inductance resistors network. The experiments on the repetition, linear degree and the step response are carried out. Results and Conclusion The shunt is accordance with the national standard GB/T17626.5-1999 and the international electrical committee standard IEC61000-4-5. The shunt may be used in the measurement of lightning surge current and the waveform calibration of the lightning surge simulator.