1st level power fault testing apparatus for testing telecommunications equipment

摘要

A portable power fault testing apparatus for testing telecommunications equipment's line cards to BellCore's AC power fault standards. A switched transformer unit is coupled to a single-phase AC line voltage source for generating a switched voltage output in 0-220 volt range or in 0-1100 volt range. A primary control relay is coupled to the switched transformer unit for applying the switched voltage output for selected time durations under control of an external computer. A test selector switch coupled to the primary control relay connects the switched voltage output to either a resistive test circuit portion or an inductive test circuit portion, each of which is designed to comply with the respective AC power fault testing conditions.