Research of Process Procedures in Lighting Impulse Measurement Software

According to the new processing requirements of lightning full-wave with oscillation in IEC60060-1 Ed.3.0, a impulse measurement calculation program based on Labview has been designed. The method of starting point determination and curve fitting has been introduced. Ordered sample mean clustering thinking was used to find the chopping point of lighting impulse tail-chopping waveform. Waveforms in TDG(test data generator)2.0.6 in IEC61083-2Ed2.0 were used to check the accuracy of the calculation program. The uncertainty of test results has also been estimated. Test results show that this calculation program meets the requirements in IEC61083-2. When the calculation program was used with oscilloscope or data capture card,the accuracy of impulse measurement system can be ensured. It is of significant importance in impulse measurement research.