The SG61000-5 is an automatic surge generator (also called lightning surge immunity test, combination wave generator, surge current generator/surge voltage generator, combined surge voltage and current generator) .
How does a surge generator work?
The SG61000-5
surge generator provides a common basis for evaluating
the resistance of power cords and internal connectors of
different equipment to high energy transient interference caused
by natural lightning surge induction and large capacity load
switching. It fully meets the IEC 61000-4-5, EN61000-4-5 and
GB/T17626.5 standards.