Ward-Leonardn.

Brit.

/ˌwɔːdˈlɛnəd/, U.S.

/ˌwɔrdˈlɛnərd/

Forms: Also Ward Leonard.

Etymology: < the name of Harry Ward Leonard (1861–1915), U.S. electrical engineer and inventor.

Electrical Engineering.

Used attributively 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.

ΘΚΠ

the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > motor > [adjective] > devised by specific scientists

Ward-Leonard1902

Scherbius1910

Schrage1919

1902 H. A. Foster Electr. Engineer's Pocket-bk. 737 The motors are controlled by the Ward-Leonard system.

1969 Jane's Freight Containers 1968–9 541/1 All three designs have the following features: rack operated traversing gear driven by a motor through Ward Leonard control [etc.].

1981 A. B. Carlson & D. G. Gisser Electr. Engin. xix. 745 This arrangement, known as the Ward-Leonard system, also provides regenerative braking.

This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021).

单词	ward-leonard
释义	Ward-Leonardn. Brit. /ˌwɔːdˈlɛnəd/, U.S. /ˌwɔrdˈlɛnərd/ Forms: Also Ward Leonard. Etymology: < the name of Harry Ward Leonard (1861–1915), U.S. electrical engineer and inventor. Electrical Engineering. Used attributively 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. ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electrical engineering > motor > [adjective] > devised by specific scientists Ward-Leonard1902 Scherbius1910 Schrage1919 1902 H. A. Foster Electr. Engineer's Pocket-bk. 737 The motors are controlled by the Ward-Leonard system. 1969 Jane's Freight Containers 1968–9 541/1 All three designs have the following features: rack operated traversing gear driven by a motor through Ward Leonard control [etc.]. 1981 A. B. Carlson & D. G. Gisser Electr. Engin. xix. 745 This arrangement, known as the Ward-Leonard system, also provides regenerative braking. This entry has not yet been fully updated (first published 1986; most recently modified version published online December 2021). < n.1902
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