J. H. Lin et al.

received signal, that is, the PD location can be obtained.

6. Conclusions

1) Pulse propagation in cables of different length has been tested. Transfer functions of propagation path are

calculated, thus resonant frequency and attenuation ratio can be determined.

2) Cable joint with man-made faults are used for PD test. Typical PD waveforms are obtained.

3) 7 waveform parameters are defined for the analysis of typical and propagated PD pulse. They can be used

for recognition of PD type and determination of propagation distance.

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