Generator for Interrupted-Wave Impulse Tests on Distribution Transformers.

This article presents a pulse generator which can provide triangular-shaped voltages up to 180 kv, with a dispersion of the instant of interruption within plus or minus 20 ns, and a voltage drop time of less than 0. 1 mu s, through which the test results can be evaluated by comparing the magnitudes sensitive to the faults recorded at the test voltage. Some experimental results are given. These were obtained on MV/LV transformers, and confirm the satisfactory behavior of the equipment in question.