| 摘要 |
<p>A pulse discharge site location (PDSL) system (12) is provided which captures pulses on a conductor without requiring the triggering functions of an oscilloscope. The PDSL system (12) comprises a pulse discharge measurement (PDM) system and is programmed to store the data captured by the PDM system in a reference buffer (46) corresponding in size to the propagation time of a pulse along the length of the conductor. Samples of the captured pulses are scanned to locate the peaks of pulses above a selected noise level. These pulses are stored into a temperary working buffer, along with a selected number of samples, normalized and then added to the reference buffer (46). The reference buffer (46) provides a statistical average of pulse activity. Fault site distances from the end of the cable can be determined due to the proportional dimension of the reference buffer (46) with respect to the length of the cable and cable propagation time.</p> |
