FIELD: protection of miscellaneous high-voltage converters.
SUBSTANCE: proposed high-voltage unit has two antiphase arms (one phase) of three-phase bridge converter (rectifier or inverter); used as semiconductor devices are power thyristors or diodes; newly introduced in checkup device are second measuring element and second pulse generator; primary windings of checkup device transformers in first and second antiphase arms of high-voltage unit are connected through respective measuring element to output of first pulse generator whose control input is connected to output of second pulse generator.
EFFECT: simplified design, enhanced economic efficiency of checkup device.
1 cl, 2 dwg
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