Self-controlled variable inductor with air gaps

Details Self-controlled variable inductor with air gaps Self-controlled variable inductor with air gaps

1985-05-15

1986-10-28

Wong, Peter S.

Electricity: power supply or regulation systems

External or operator controlled

Using a transformer or inductor as the final control device

323334, 323250, 363 91, G05F 1325

Patent

active

046201440

ABSTRACT:
An electric power apparatus, namely a variable inductor comprising a magnetic core provided with a center limb and two outer limbs all having first and second ends. The first ends are interconnected through a first common point of the magnetic core, and the second ends through a second common point of this core. Two primary windings disposed respectively around the two outer limbs are connected in series and supplied with an alternating current, while two control windings also connected in series are respectively superposed to the two primary windings. The alternating current of the primary windings is rectified through a diode bridge for supplying with direct current the control windings. The direction of the different windings along with their interconnections are selected so that the alternating and direct currents induce in one of the two outer limbs alternating and direct current magnetic fluxes which assist each other or which are in opposition and in the other of these two limbs alternating and direct current magnetic fluxes which are in opposition or which assist each other, respectively, depending on the positive or negative value of the alternating current. Each outer limb comprises an air gap traversed by the resultant magnetic flux induced in this limb, and preferably disposed in the center of the corresponding primary and control windings.

REFERENCES:
patent: 1813409 (1931-07-01), Kouyoumjian
patent: 2686292 (1954-08-01), Macklem
patent: 2743152 (1956-04-01), Carleton
patent: 2957086 (1960-10-01), Pettit, Jr.
patent: 3373347 (1968-03-01), Maka
The Theory and Design of Magnetic Amplifiers (1958) by E. H. Frost-Smith; pp. 20, 33, 34, 41, 51 and 97.
IEEE Transactions on Power Apparatus and Systems vol. PAS. 101, No. 9, Sep. 1982, "A Current Limiting Device Using Superconducting D. C. Bias Application and Prospects" by B. P. Raju et al.
The Electronic Journal, Feb. 1937, "Direct-Current Controlled Reactors" by C. V. Aggers.

Affiliated with

Also associated with

Rating

Self-controlled variable inductor with air gaps does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Self-controlled variable inductor with air gaps, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Self-controlled variable inductor with air gaps will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1348830