| 释义 |
rheoˈstatic, a.
[ad. F. rhéostatique, 1877.]
a. Designating an electric machine invented by Planté, by which continuous static effects are produced.
1878Chem. News XXXVII. 184/2 Effects of the Rheostatic Machine.—G. Planté.
b. rheostatic brake, a form of brake used in vehicles driven by electric traction motors, in which the motors are made to act as generators, the power so generated being dissipated in the starting rheostats; so rheostatic braking.
1920Whittaker's Electr. Engineer's Pocket-bk. (ed. 4) 563 Brakes for tramcars may be classified as follows:..(2) Electric rheostatic brakes, in which the car motors are converted into generators and are loaded on rheostats, the brake being applied and regulated from the controller. 1931R. A. Bishop Electr. Trolley Bus v. 118 The rheostatic brake so adjusted as not to overstress the transmission. Ibid. 192 (Index), Rheostatic braking. 1954A. T. Dover Electr. Traction (ed. 3) viii. 130 For rheostatic braking either of the schemes..are employed. 1971Mod. Railways May 197/2 As train speed is reduced and the rheostatic brake fades, proportional air brake is automatically re-established on the locomotive. |