| 释义 |
Ward-Leonard Electr. Engin.|wɔːdˈlɛnəd|
Also Ward Leonard.
The name of Harry Ward Leonard (1861–1915), U.S. electrical engineer and inventor, used attrib. to designate a method of controlling a direct-current motor in which its armature current is supplied by an auxiliary d.c. generator (driven by an a.c. motor), the field current of which is varied to vary the speed of the motor.
1902H. A. Foster Electr. Engineer's Pocket-bk. 737 The motors are controlled by the Ward-Leonard system. 1969Jane's Freight Containers 1968–69 541/1 All three designs have the following features: rack operated traversing gear driven by a motor through Ward Leonard control [etc.]. 1981Carlson & Gisser Electr. Engin. xix. 745 This arrangement, known as the Ward-Leonard system, also provides regenerative braking. |