Electricity: power supply or regulation systems – Remote sensing
Patent
1974-03-12
1976-03-02
Pellinen, A. D.
Electricity: power supply or regulation systems
Remote sensing
323 8, 323109, 323119, 323124, 323127, H02J 318
Patent
active
039421007
ABSTRACT:
An improved reactive power compensator for a transmission line is effective to correct voltage transients and overloads of diverse kinds. The reactive power developed by a conventional main reactive element such as a DC-bias controlled choke in the compensator is varied in accordance with an error signal representative of the difference between the instantaneous voltage across a particular junction of the line and a reference value. Excitation for the main element is supplied by a variable shunt reactance which exhibits a no-load inductive power loss that is large compared to the magnetization power loss of a conventional distribution transformer. The shunt reactance has an exciting winding coupled across the line at the junction and a power winding inductively coupled to the exciting winding for feeding the main reactive element.
REFERENCES:
patent: 2358394 (1944-09-01), Haug
patent: 2858406 (1958-10-01), Boyd et al.
patent: 3061770 (1962-10-01), Steinitz
patent: 3400326 (1968-09-01), Zhukov et al.
patent: 3740638 (1973-06-01), Thorborg
patent: 3829736 (1974-08-01), Schirman
Kauferle Josef
Reichert Konrad
BBC Brown Boveri & Company Limited
Pellinen A. D.
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