Variable transformer, reactor and method of their control

Details Variable transformer, reactor and method of their control Variable transformer, reactor and method of their control

H - Electricity

01

F

323/30

H01F 15/18 (1990.01)

Patent

CA 1297534

ABSTRACT OF THE DISCLOSURE A variable transformer/reactor having a core combining at least two complete core elements with a common yoke; primary winding divided into two independently fed sets of phase coils wound in opposite direction, arranged on symmetrical legs of core elements and separated by the common yoke; secondary winding with each phase coil divided into two, wound in opposite direction portions carried by symmetrical core legs, adjacent to the primary coils and separated by common yoke. The secondary short-circuited reactor winding is reduced to at least one close loop member with loop portions separated by the common yoke. The single phase/polyphase apparatus has at least one primary coil per set that includes a controllable device in circuit relation therewith to enable control of one primary coil relative to the other, either in current magnitude or in current phase shift. The controllable device being either a silicon control rectifier, a triac, or a transistor. By continuous control of the controllable device the apparatus variable output parameters are obtained.

601585

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