Multi-Stage Synthetic Circuit for Extra-High-Voltage Circuit-Breaker Testing

A new synthetic testing circuit, intended mainly for E. H. V. circuit breaker tests is being described. Based on the well known idea of parallel current injection method, the circuit is created in the form of several, integrated stages. The adjustment of the circuit test voltage to the rated voltage of the tested breaker is made by connecting the stages in series, in parallel or in a series-parallel combination. This arrangement creates a special type of a combined current and voltage impulse generator.