STATIONARY DIAGNOSTIC DEVICE OF POWER TRANSFORMERS ISOLATION UNDER RUNNING VOLTAGE Russian patent published in 2009 - IPC G01R31/06 

FIELD: physics.

SUBSTANCE: device contains two broadband reconstructed filters of affixion with protection blocks, inlet joined through high-voltage screened conductors and filters of affixion with diagnosed transformer. The exit of the first broadband tunable filter is joined through the first active resonance amplifier, the first shaper of the rectangular impulses, the first controller with the interface block to the first inlet of programmed microprocessor. The exit of the second tunable filter is joined through the second active resonance amplifier, the second shaper of the rectangular impulses, the first key with the interface block to the second inlet of the programmed microprocessor having monitor, keyboard and printer. Exits of the first and second resonance amplifiers are connected also on inlets accordingly the second controller with the interface block and the second key with the interface block, signals from which exits arrive on the programmed microprocessor. The first controller drives opening of a path of passage of signals through the first and second keys.

EFFECT: reliability increase, function chart simplification.

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