| 摘要 |
PURPOSE:To reduce thermal stress applied to a resistor by rigidly fixing a clamp of the side connected with lead wirings of a resistor, and slidably securing the other clamp, thereby theremally elongating it with the lead wiring side as a base. CONSTITUTION:When a parallel unit of a plurality of resistors 1 is securing along the circumferential direction of an annular rotary resistor mounting frame 3, an insulator 6 is interposed between the resistors 1 and a clamp 4. Only the clamp 4a of the side connected with the lead wirings 5 of the field winding of the resistor 1 of the clamp 4 for securing the resistors 1 is rigidly secured, and the other clamps 4 are secured in the strength of the degree capable of sliding the resistors 5. Thus, the thermal elongation and shrinkage of the resistor 1 are allowed with the clamp 4a of the lead wiring side as a base to eliminate thermal stress. |
