| 摘要 |
<p>PURPOSE:To readily prevent the electrolytic corrosion of bearings by separating the grounding circuit for a main circuit and an auxiliary circuit and also the grounding circuit for a car body and a motor frame into the different systems, and providing grounding device, respectively. CONSTITUTION:The grounding circuit for the main circuit and the auxiliary circuit 3 is constituted by a grounding switch 4, a main grounding wire 11, a grounding device 6', a wheel shaft 7, and rails 10; and the grounding circuit for the car body 9 and the motor frame 8 is constituted by the car body 9, a motor frame 8, the auxiliary grounding wire 12, a grounding device 6, the wheel shaft 7, and the rails 10. Thus, the grounding circuit is divided into 2 systems, and the grounding device 6 and 6' are provided in the grounding circuits, respectively. Therefore, the grounding current is not divided to a truck and gears through the car body 9 and the motor frame 8, the electrolytic corrosion of bearings can be readily prevented.</p> |
