FIELD: instrumentation. SUBSTANCE: device for automatic diagnostics of insulation of windings of electric motor includes generator of rectangular pulses, peak detector, storage unit of analog signal, comparator, relay interlocking start of electric motor, selector of operating conditions, calibration unit, indication unit. EFFECT: increased objectivity and automated diagnostics of insulation of windings of electric motor, easy-to- grasp results of diagnostics. 1 cl, 1 dwg
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