Electricity: power supply or regulation systems – Remote sensing
Patent
1976-05-03
1977-06-07
Pellinen, A. D.
Electricity: power supply or regulation systems
Remote sensing
323119, 323127, H02J 318
Patent
active
040286142
ABSTRACT:
In a multiphase alternating current electric power system subject to erratic and unbalanced reactive load current demand, reactive load current compensation is provided by a balanced multiphase reactive compensating impedance having equal but limited reactive current capability in all phases. To increase reactive current capability of any one selected phase of the reactive compensator in response to severe load unbalance a supplementary single phase compensating impedance is connected through a load current controlled switching bridge in parallel circuit relation with any one phase arm of the multiphase compensator. When any one such parallel connection is operative the switching bridge is prevented from connecting the supplementary impedance in any other phase arm of the multiphase compensator.
REFERENCES:
patent: 2652529 (1953-09-01), Alexanderson
patent: 3936727 (1976-02-01), Kelley et al.
patent: 3963978 (1976-06-01), Kelley et al.
patent: 3983469 (1976-09-01), Brown
Freedman William
General Electric Company
Pellinen A. D.
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