FIELD: electricity.
SUBSTANCE: amplitudes of runout phase voltages and periods of oscillation of these voltages. These values are compared with the values recorded earlier for the serviceable electric motor. By the measured values falling outside the allowable range provisioned by an measurement errors and allowable deviation of measured parameters from initial values the occurrence of turn-to-turn failures can be witnessed.
EFFECT: diagnostics of turn-to-turn failures at an early stage of development.
5 dwg
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