SURGE WAVEFORM VERIFICATION
FOR TRANSIENT GENERATORS
Overview
Surge is caused by over-voltages from switching and lightning transients. IEC 61000-4-5 describes several tests which are intended to evaluate immunity from several natural phenomena and various equipment configurations.
The most frequent cause of damage in industrial electronic systems is over-voltages, caused either by switching actions in the equipment itself or by atmospheric discharges such as lightning. This paper will not discuss symmetrical communication lines that are intended to be directly connected to outdoor telecommunication networks (e.g. public switched telecommunications networks (PSTN) that typically have cable lengths in excess of 300 m or even many kilometers. This paper will be limited to calibrating surge waveforms for single-phase AC/DC power lines.
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