FIELD: electrical engineering and instrumentation engineering; checking brush pressure on commutator. SUBSTANCE: device has disk-shaped base 1, screw 2, stop 3, contact pin 4, meter 5, signalling device 6, and movement mechanism. Device makes it possible to enhance accuracy of measurement of contact pressure of brush in brush holder on commutator of electrical machine by excluding personal factor in determining moment of contact of brush and commutator and obtain fixed values of efforts. EFFECT: enhanced accuracy of measurement. 3 dwg
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