Transient Control Level Test Generators

Significance Part 5 – Monitoring Instruments, laboratory measurements, and test methods This report describes in detail a surge generator producing a waveform mimicking a typical waveshape as observed during several years of recording transients in residential circuits; the source impedance is believed to be representative of real-world conditions. This packaged design, suitable for bench-top use, was implemented and several units were built for GE Corporate R&D, GE operating departments, and the Underwriters Laboratories where it was initially used in conjunction with UL standards concerned with GFCI misoperation. It should be noted that at that time, the perceived threat for GFCIs was the low energy-delivery capability of oscillatory transients and no commercial units were yet available. This test waveform was adopted, under the designation of 100 kHz