DEVICE FOR ESTIMATING AND PREDICTING TECHNICAL STATE OF ISOLATION OF WINDINGS OF ELECTRIC MOTOR Russian patent published in 2006 - IPC G01R31/00 

FIELD: measuring equipment engineering, possible use for diagnostics of isolation of windings of three-phased electric motors.

SUBSTANCE: for achieving current result, device contains rectangular impulse generator, synchronization block, analog-digital converter, microcontroller, external data memory, external program memory, keyboard and liquid-crystalline indicator. First input of analog-digital converter and input of synchronization block are serially connected to output of electric motor winding. First, second, third, fourth and fifth inputs of microcontroller are connected respectively to outputs of analog-digital converter, rectangular impulse generator, external data memory, external program memory and keyboard. First, second, third and fourth outputs of microcontroller are connected respectively to second input of analog-digital converter, to inputs of rectangular impulse generator, external data memory and liquid-crystalline indicator.

EFFECT: expanded functional capabilities.

1 dwg