| 摘要 |
An electric rolling stock control apparatus includes, an alternating-current motor (15) for making an electric rolling stock run, and for carrying out brake control of the electric rolling stock, a dynamic braking resistor (17) for consuming electric power generated by the brake control, electric current detector (18) for detecting a value of current flowing in the dynamic braking resistor (17), voltage detector (20) for detecting a value of voltage between both terminals of the dynamic braking resistor (17), dynamic braking resistance calculating unit (19) for calculating a value of resistance of the dynamic braking resistor (17) on the basis of the value of current and the value of voltage, and a dynamic braking resistance partial ground fault detector (21) for detecting a partial ground fault in the dynamic braking resistor (17) when the value of resistance is less than a predetermined value. |
