Saturated reactor arrangements

Details Saturated reactor arrangements Saturated reactor arrangements

1976-11-22

1978-09-05

Kozma, Thomas J.

Inductor devices

Polyphase

Interconnected windings

323 50, 323 83, 323 89C, H01F 3300, G05F 306

Patent

active

041124030

ABSTRACT:
A saturated reactor adapted for direct connection to an EHV line and thus constituting a combined reactor and transformer. A problem arises in that earthing of the primary winding star point would normally short circuit the 3rd harmonic. The invention overcomes this by series connection of primary coils coupled to three limbs whose fluxes are spaced at 40.degree.. 3rd harmonic voltages therefore cancel in the series primary windings. The series primary windings may be obtained as separate coils on individual limbs or as one coil (per phase) embracing three limbs. Elimination of the 3rd harmonic enables the ninth harmonic to be short circuited in a mesh winding.

REFERENCES:
patent: 2488628 (1949-11-01), Hoeppner
Friedlander, "Principle and Analysis of Stabilized Phase Multiplier Type of Magnetic Frequency Converter, Electrical Energy", Oct. 1965.

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