| 摘要 |
PURPOSE:To obtain a drop test equipment for DC electric rotating machine in which the accuracy can be enhanced by suppressing the temperature rise of winding at the time of measurement. CONSTITUTION:A measuring instrument 11 is fixed integrally, at the input terminal thereof, with a pair of output detection terminals 12a, 12b and a switch 13, comprising a fixed part 13a and a movable part 13b, is also mounted thereon. When the instrument 11 is pressed against a rotor 1 and the pair of output detection terminals 12a, 12b are brought into contact with a pair of commutator segments 3a, the switch 13 is turned ON. A controller 14 controls the output voltage from a power supply 10 at a predetermined level. When the instrument 11 is separated from the rotor 1, the switch 13 is turned OFF and the controller 14 interrupts power supply. |
